Synopsis
 
Synopsis of model 7m wide polytunnel 100m2 far north Scotland 15K heating alt
gr defined in 7m_poly_altgr15k.cfg generated on Mon Nov 20 12:00:28 2023.
Associated notes are in ../doc/7m_poly.log
 
Location latitude   58.84 longitude difference  -2.80 (from local time
meridian (east +ve). Simulations year 2007 with Weekends occuring on Saturday
and Sunday.
Site exposure is typical city centre
 
Exterior surface heat transfer method:
default McAdams exterior hc method
 
Interior surface heat transfer method:
Alamdari and Hammond (default)
 
The Site exposure is typical city centre and the ground reflectance is 0.20.
 
Weather file: Lerwick via entrak 1978 data set in GBR_lerwick with
hour-centred solar data.
Standard annual weather: GBR_lerwick
Calculated ground temperature at depth                                                                                      
  0.5 m: 4.3659 2.9628 2.5808 2.9121 4.8065 6.9281 8.9243 10.370 10.792 10.112 8.4771 6.4151
  1.0 m: 4.8636 3.4641 2.9648 3.1484 4.6961 6.5757 8.4304 9.8651 10.417 9.9629 8.6005 6.7708
  1.5 m: 5.2816 3.9144 3.3363 3.4033 4.6540 6.3094 8.0172 9.4134 10.052 9.7797 8.6542 7.0402
  2.0 m: 5.6273 4.3127 3.6867 3.6640 4.6640 6.1155 7.6767 9.0151 9.7067 9.5773 8.6545 7.2372
  2.5 m: 5.9088 4.6602 4.0106 3.9209 4.7120 5.9809 7.4006 8.6687 9.3863 9.3672 8.6154 7.3745
  3.0 m: 6.1346 4.9596 4.3051 4.1670 4.7865 5.8941 7.1802 8.3710 9.0940 9.1578 8.5486 7.4638
  3.5 m: 6.3127 5.2148 4.5691 4.3978 4.8783 5.8450 7.0074 8.1180 8.8312 8.9552 8.4634 7.5152
  4.0 m: 6.4506 5.4302 4.8032 4.6107 4.9798 5.8247 6.8744 7.9051 8.5977 8.7636 8.3674 7.5375
  4.5 m: 6.5555 5.6103 5.0086 4.8042 5.0854 5.8260 6.7741 7.7275 8.3923 8.5856 8.2664 7.5379
  5.0 m: 6.6335 5.7598 5.1873 4.9781 5.1909 5.8429 6.7004 7.5807 8.2131 8.4227 8.1646 7.5226
  5.5 m: 6.6898 5.8830 5.3417 5.1330 5.2933 5.8703 6.6478 7.4600 8.0580 8.2752 8.0654 7.4965
  6.0 m: 6.7293 5.9840 5.4745 5.2699 5.3905 5.9046 6.6118 7.3615 7.9243 8.1429 7.9707 7.4634
  6.5 m: 6.7556 6.0664 5.5882 5.3902 5.4814 5.9426 6.5885 7.2814 7.8097 8.0251 7.8819 7.4264
  7.0 m: 6.7720 6.1334 5.6852 5.4954 5.5651 5.9822 6.5747 7.2164 7.7116 7.9209 7.7999 7.3876
  7.5 m: 6.7812 6.1880 5.7681 5.5873 5.6415 6.0217 6.5679 7.1638 7.6277 7.8290 7.7248 7.3488
  8.0 m: 6.7851 6.2324 5.8387 5.6673 5.7107 6.0601 6.5661 7.1212 7.5561 7.7482 7.6567 7.3111
  8.5 m: 6.7853 6.2687 5.8992 5.7370 5.7731 6.0965 6.5677 7.0864 7.4947 7.6772 7.5952 7.2752
  9.0 m: 6.7831 6.2986 5.9511 5.7978 5.8290 6.1306 6.5715 7.0580 7.4419 7.6149 7.5400 7.2416
  9.5 m: 6.7795 6.3234 5.9959 5.8510 5.8791 6.1621 6.5766 7.0344 7.3963 7.5600 7.4905 7.2105
 10.0 m: 6.7750 6.3443 6.0347 5.8978 5.9240 6.1909 6.5823 7.0148 7.3567 7.5115 7.4462 7.1819
 
 
Databases associated with the model:
 standard pressure distr: pressc.db1
 materials              :  ../dbs/7m_poly.materialdb
 constructions          :  ../dbs/horticultural.constrdb
 standard plant comp    : plantc.db1
 standard event profiles: profiles.db2.a
 optical properties     : ../dbs/7m_poly.opticdb
 standard UK NCM data   : SBEM.db1
 standard predefined obj: predefined.db1
 standard mould isopleth: mould.db1
 
 ____________________________________________________________
 
The model includes ideal controls as follows:
Control description:
Inject 15kW at 0.5m depth (via thin zone) 15K/100m2 is ~150W/m2.
Senses the centre space of tunnel and attempts to maintain 12C.
 
Zones control includes  2 functions.
 
The following day types are defined: weekdays    saturday    sunday      holiday     planting
 
Details of control loops referenced in the model:
 loop: earth_tube_ctl
 
 The sensor for function  2 senses dry bulb temperature in heater.
 The actuator for function  2 is the air point in heater.
 
 Per|Start|Sensing  |Actuating  | weekdays control laws
   1  0.00 db temp   > flux      Ideal multi-sensor: max heat cp 15000.W min heat cp 0.W max cool
cp 100.W min heat cp 0.W Heat stpt 40.0C cool stpt 100.0C Aux:senses dry bulb T in mid_z. h/c 12.0
100.0
 
 Per|Start|Sensing  |Actuating  | saturday control laws
   1  0.00 db temp   > flux      Ideal multi-sensor: max heat cp 15000.W min heat cp 0.W max cool
cp 100.W min heat cp 0.W Heat stpt 40.0C cool stpt 100.0C Aux:senses dry bulb T in mid_z. h/c 12.0
100.0
 
 Per|Start|Sensing  |Actuating  | sunday control laws
   1  0.00 db temp   > flux      Ideal multi-sensor: max heat cp 15000.W min heat cp 0.W max cool
cp 100.W min heat cp 0.W Heat stpt 40.0C cool stpt 100.0C Aux:senses dry bulb T in mid_z. h/c 12.0
100.0
 
 Per|Start|Sensing  |Actuating  | holiday control laws
   1  0.00 db temp   > flux      Ideal multi-sensor: max heat cp 15000.W min heat cp 0.W max cool
cp 100.W min heat cp 0.W Heat stpt 50.0C cool stpt 100.0C Aux:senses dry bulb T in mid_z. h/c 12.0
100.0
 
 Per|Start|Sensing  |Actuating  | planting control laws
   1  0.00 db temp   > flux      Ideal multi-sensor: max heat cp 15000.W min heat cp 0.W max cool
cp 100.W min heat cp 0.W Heat stpt 50.0C cool stpt 100.0C Aux:senses dry bulb T in mid_z. h/c 12.0
100.0
 
 Zone to contol loop linkages:
 zone ( 1) end_z        << control  0 no control imposed
 zone ( 2) heater       << control  2 earth_tube_ctl
 zone ( 3) mid_z        << control  0 no control imposed
 zone ( 4) other_end_z  << control  0 no control imposed
 
 Flow control includes  1 loops.
below 5C narrow the door to 100mm and over 20 make it 400mm
 
 The sensor for function  1 senses node (1) end_z
 The actuator for function  1 is flow connection:   1 south - end_z via end_gap
 
 Per|Start|Sensing  |Actuating  | weekdays control laws
   1  0.00 dry bulb > flow       range setpoints: low 5.00 mid 20.00 high 24.00 actuation ranges:
low (< low sp) 0.50 mid (>mid sp) 2.00 high (>high sp) 3.00.
 
 Per|Start|Sensing  |Actuating  | saturday control laws
   1  0.00 dry bulb > flow       range setpoints: low 5.00 mid 20.00 high 24.00 actuation ranges:
low (< low sp) 0.50 mid (>mid sp) 2.00 high (>high sp) 3.00.
 
 Per|Start|Sensing  |Actuating  | sunday control laws
   1  0.00 dry bulb > flow       range setpoints: low 5.00 mid 20.00 high 24.00 actuation ranges:
low (< low sp) 0.50 mid (>mid sp) 2.00 high (>high sp) 3.00.
 
 Per|Start|Sensing  |Actuating  | holiday control laws
   1  0.00 dry bulb > flow       range setpoints: low 10.00 mid 20.00 high 24.00 actuation ranges:
low (< low sp) 0.50 mid (>mid sp) 2.00 high (>high sp) 3.00.
 
 Per|Start|Sensing  |Actuating  | planting control laws
   1  0.00 dry bulb > flow       range setpoints: low 10.00 mid 20.00 high 24.00 actuation ranges:
low (< low sp) 0.50 mid (>mid sp) 2.00 high (>high sp) 3.00.
 ____________________________________________________________
 
The model includes an air flow network.
 
 Flow network description.
 
   7 nodes,   3 components,   5 connections;     wind reduction =  1.000
   # Node       Fluid   Node Type              X Y Z Position      Temperature    Data_1        Data_2
   1 end_z        air   internal & unknown     0.000   0.000   1.475   20.000     (-)     0.000  vol   65.221
   2 heater       air   internal & unknown     0.000   0.000  -0.400   20.000     (-)     0.000  vol   19.992
   3 mid_z        air   internal & unknown     0.000   0.000   1.475   20.000     (-)     0.000  vol   65.221
   4 other_end_z  air   internal & unknown     0.000   0.000   1.475   20.000     (-)     0.000  vol   65.221
   5 south        air   boundary & wind ind    0.000   0.000   1.753   0.0000     coef    1.000  azim 180.000
   6 north        air   boundary & wind ind    0.000   0.000   1.753   0.0000     coef    1.000  azim   0.000
   7 left         air   boundary & wind ind    0.000   0.000   0.250   0.0000     coef    1.000  azim  90.000
 
 Component    Type Fluid C+ L+ Description
 
 between       130 air    5  0 Specific air flow door
 With width  2.000 height 2.500 ref ht  1.500 discharge factor 0.400
 
 end_gap       130 air    5  0 Specific air flow door
 With width  0.200 height 2.500 ref ht  1.500 discharge factor 0.200
 
 crack         120 air    3  0 Specific air flow crack
 With crack width(m)  0.0050 crack length(m) 12.000
 
    # +Node         dHght   -Node         dHght   Component       Z @+    Z @-
    1 south        -0.000   end_z         0.000   end_gap         1.753   1.475
    2 end_z         0.000   mid_z         0.000   between         1.475   1.475
    3 mid_z         0.000   other_end_z   0.000   between         1.475   1.475
    4 north        -0.000   other_end_z   0.000   end_gap         1.753   1.475
    5 left         -0.000   heater        0.000   crack           0.250  -0.400
 
thermal zone to air flow node mapping:
thermal zone -> air flow node
end_z        -> end_z
heater       -> heater
mid_z        -> mid_z
other_end_z  -> other_end_z
 
 
 ____________________________________________________________
 
ID Zone         Volume|          Surface
   Name         m^3   | No. Opaque  Transp  ~Floor
 1 end_z          65.2  22    27.6    73.5    27.6  end_z describes end zone of 7m polytunnel
 2 heater         20.0  11   208.4     0.0   100.0  heater describes a thin zone used for heat injection
 3 mid_z         102.4  22    43.3    96.7    43.3  mid_z describes a centre zone of a polytunnel
 4 other_end_z    65.2  22    27.6    73.5    27.6  other_end_z describes far end of polytunnel
   all           253.   77    307.    244.    198.
 
 
 Zone end_z ( 1) is composed of 22 surfaces and 40 vertices.
 It encloses a volume of 65.2m^3 of space, with a total surface
 area of 101.m^2 & approx floor area of 27.6m^2
 end_z describes end zone of 7m polytunnel
 There is 57.151m2 of exposed surface area, 20.305m2 of which is vertical.
 Facade glazing is 20.305m2 &  73.6 % of floor & 100.0 % facade with average U of 2.865 & UA of 58.165
Skylights are 133.50 % of floor area & average U of 3.134 & UA of 115.47
 Opaque partitions:ceiling:floor 27.600m2 & trasparent partitions:ceiling:floor 16.305m2.
 
 A summary of the surfaces in end_z( 1) follows:
 
 Sur| Area  |Azim|Elev|          Surface                           | construction             |environment
    | m^2   |deg |deg | name       |optical|locat| use             | name                     |other side
  1  16.3    180.   0. end          Lexan_2m VERT -:-               LDPE_double              ||< external
  2  16.3      0.  -0. separator    SC_ficti VERT -:-               fictitious               ||< end:mid_z
  3  2.04    270.  11. edge_b       Lexan_2m SLOP -:-               LDPE_double              ||< external
  4  2.33    270.  31. edge_c       Lexan_2m SLOP -:-               LDPE_double              ||< external
  5  3.12    270.  40. edge_d       Lexan_2m SLOP -:-               LDPE_double              ||< external
  6  2.44    270.  55. edge_e       Lexan_2m SLOP -:-               LDPE_double              ||< external
  7  2.24    270.  63. edge_f       Lexan_2m SLOP -:-               LDPE_double              ||< external
  8  2.05    270.  78. edge_g       Lexan_2m SLOP -:-               LDPE_double              ||< external
  9  2.03    270.  80. edge_h       Lexan_2m SLOP -:-               LDPE_double              ||< external
 10  2.01    270.  84. ridge_l      Lexan_2m SLOP -:-               LDPE_double              ||< external
 11  2.01     90.  84. ridge_r      Lexan_2m SLOP -:-               LDPE_double              ||< external
 12  2.03     90.  80. edge_r_h     Lexan_2m SLOP -:-               LDPE_double              ||< external
 13  2.05     90.  78. edge_r_g     Lexan_2m SLOP -:-               LDPE_double              ||< external
 14  2.15     90.  68. edge_r_f     Lexan_2m SLOP -:-               LDPE_double              ||< external
 15  2.44     90.  55. edge_r_e     Lexan_2m SLOP -:-               LDPE_double              ||< external
 16  2.97     90.  42. edge_r_d     Lexan_2m SLOP -:-               LDPE_double              ||< external
 17  2.88     90.  34. edge_r_c     Lexan_2m SLOP -:-               LDPE_double              ||< external
 18  2.04     90.  11. edge_r_b     Lexan_2m SLOP -:-               LDPE_double              ||< external
 19  2.00     90.   0. edge_r_a     Lexan_2m VERT -:-               LDPE_double              ||< external
 20  13.6      0. -90. base_r       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_r:heater
 21  14.0      0. -90. base_l       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_l:heater
 22  2.00    270.   0. edge_a       Lexan_2m VERT -:-               LDPE_double              ||< external
 
  
In end_z               m^2     m^2 to   m^2 to  m^2 back  m^2 to  m^2 to
MLC name               total  ambient  other z  -to-back  ground  similar
fictitious              16.3      0.0     16.3      0.0      0.0      0.0
LDPE_double             57.2     57.2      0.0      0.0      0.0      0.0
earthalt_0.5m           27.6      0.0     27.6      0.0      0.0      0.0
 
 An hourly solar radiation distribution is used for this zone.
 Insolation sources (all applicable):
1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22
 Shading patterns have been calculated for this zone.
 
 Ventilation & infiltration is assessed via network analysis
 and the associated network node is: end_z
 
Notes:
Nothing happens in this zone in terms of occupants lights and small
power. Initial period of 0-24 hour for each.
 
Daytype   Gain Label     Type    Unit Period Sensible  Latent      Radiant    Convec
          No.                          Hours Magn.(W)  Magn.(W)    Fraction   Fraction
weekdays    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
weekdays    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
weekdays    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
saturday    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
saturday    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
saturday    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
sunday      1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
sunday      2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
sunday      3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
holiday     1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
holiday     2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
holiday     3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
planting    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
planting    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
planting    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
 
 ____________________________________________________________
 
 Zone heater ( 2) is composed of 11 surfaces and 16 vertices.
 It encloses a volume of 20.0m^3 of space, with a total surface
 area of 208.m^2 & approx floor area of 100.0m^2
 heater describes a thin zone used for heat injection
 Opaque partitions:ceiling:floor 99.960m2.
Ground contact is 100.00 % of floor area & average U of 0.769 & perimeter 0.00
 
 A summary of the surfaces in heater( 2) follows:
 
 Sur| Area  |Azim|Elev|          Surface                           | construction             |environment
    | m^2   |deg |deg | name       |optical|locat| use             | name                     |other side
  1  1.40    180.   0. edge_front   OPAQUE   VERT -:-               insul_frame              ||< adiabatic
  2  2.86     90.   0. edge_r       OPAQUE   VERT -:-               insul_frame              ||< adiabatic
  3  2.86    270.   0. edge_left    OPAQUE   VERT -:-               insul_frame              ||< adiabatic
  4  14.0      0.  90. upper_l      OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_l:end_z
  5  100.0     0. -90. Base         OPAQUE   FLOR -:-               earth1.0m                ||< ground profile  1
  6  14.0      0.  90. upper_r      OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_r:end_z
  7  1.40      0.   0. edge_back    OPAQUE   VERT -:-               insul_frame              ||< adiabatic
  8  22.0      0.  90. upper_lc     OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_l:mid_z
  9  14.0      0.  90. upper_ld     OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_l:other_end_z
 10  22.0      0.  90. upper_rc     OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_r:mid_z
 11  14.0      0.  90. upper_rd     OPAQUE   CEIL -:-               earthalt_0.5m_inv        ||< base_r:other_end_z
 
  
In heater              m^2     m^2 to   m^2 to  m^2 back  m^2 to  m^2 to
MLC name               total  ambient  other z  -to-back  ground  similar
insul_frame              8.5      0.0      0.0      0.0      0.0      8.5
earth1.0m              100.0      0.0      0.0      0.0    100.0      0.0
earthalt_0.5m_inv      100.0      0.0    100.0      0.0      0.0      0.0
 
 All surfaces will receive diffuse insolation (if shading not calculated).
 No shading analysis requested.
 No insolation analysis requested.
 
 
 Number of control periods:  1
 Period  1 start   0.00 finish  24.00
 User supplied hc values
   Surface orientation    Inside    Outside
  1 edge_front   (VERT)   default   default
  2 edge_r       (VERT)   default   default
  3 edge_left    (VERT)   default   default
  4 upper_l      (CEIL)    40.000   default
  5 Base         (FLOR)    40.000   default
  6 upper_r      (CEIL)    40.000   default
  7 edge_back    (VERT)   default   default
  8 upper_lc     (CEIL)    40.000   default
  9 upper_ld     (CEIL)    40.000   default
 10 upper_rc     (CEIL)    40.000   default
 11 upper_rd     (CEIL)    40.000   default
 
 Ventilation & infiltration is assessed via network analysis
 and the associated network node is: heater
 
Notes:
Nothing happens in this zone in terms of occupants lights and small
power. Initial period of 0-24 hour for each.
 
Daytype   Gain Label     Type    Unit Period Sensible  Latent      Radiant    Convec
          No.                          Hours Magn.(W)  Magn.(W)    Fraction   Fraction
weekdays    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
weekdays    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
weekdays    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
saturday    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
saturday    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
saturday    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
sunday      1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
sunday      2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
sunday      3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
holiday     1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
holiday     2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
holiday     3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
planting    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
planting    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
planting    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
 
 ____________________________________________________________
 
 Zone mid_z ( 3) is composed of 22 surfaces and 40 vertices.
 It encloses a volume of 102.m^3 of space, with a total surface
 area of 140.m^2 & approx floor area of 43.3m^2
 mid_z describes a centre zone of a polytunnel
 There is 64.128m2 of exposed surface area, 6.2800m2 of which is vertical.
 Facade glazing is 6.2800m2 &  14.5 % of floor & 100.0 % facade with average U of 2.865 & UA of 17.990
Skylights are 133.51 % of floor area & average U of 3.134 & UA of 181.29
 Opaque partitions:ceiling:floor 43.332m2 & trasparent partitions:ceiling:floor 32.610m2.
 
 A summary of the surfaces in mid_z( 3) follows:
 
 Sur| Area  |Azim|Elev|          Surface                           | construction             |environment
    | m^2   |deg |deg | name       |optical|locat| use             | name                     |other side
  1  16.3    180.  -0. end          SC_ficti VERT -:-               fictitious               ||< separator:end_z
  2  16.3      0.  -0. separator_b  SC_ficti VERT -:-               fictitious               ||< fict_sep:other_end_z
  3  3.20    270.  11. edge_b       Lexan_2m SLOP -:-               LDPE_double              ||< external
  4  3.66    270.  31. edge_c       Lexan_2m SLOP -:-               LDPE_double              ||< external
  5  4.90    270.  40. edge_d       Lexan_2m SLOP -:-               LDPE_double              ||< external
  6  3.83    270.  55. edge_e       Lexan_2m SLOP -:-               LDPE_double              ||< external
  7  3.51    270.  63. edge_f       Lexan_2m SLOP -:-               LDPE_double              ||< external
  8  3.22    270.  78. edge_g       Lexan_2m SLOP -:-               LDPE_double              ||< external
  9  3.19    270.  80. edge_h       Lexan_2m SLOP -:-               LDPE_double              ||< external
 10  3.16    270.  84. ridge_l      Lexan_2m SLOP -:-               LDPE_double              ||< external
 11  3.16     90.  84. ridge_r      Lexan_2m SLOP -:-               LDPE_double              ||< external
 12  3.19     90.  80. edge_r_h     Lexan_2m SLOP -:-               LDPE_double              ||< external
 13  3.22     90.  78. edge_r_g     Lexan_2m SLOP -:-               LDPE_double              ||< external
 14  3.38     90.  68. edge_r_f     Lexan_2m SLOP -:-               LDPE_double              ||< external
 15  3.83     90.  55. edge_r_e     Lexan_2m SLOP -:-               LDPE_double              ||< external
 16  4.67     90.  42. edge_r_d     Lexan_2m SLOP -:-               LDPE_double              ||< external
 17  4.53     90.  34. edge_r_c     Lexan_2m SLOP -:-               LDPE_double              ||< external
 18  3.20     90.  11. edge_r_b     Lexan_2m SLOP -:-               LDPE_double              ||< external
 19  3.14     90.   0. edge_r_a     Lexan_2m VERT -:-               LDPE_double              ||< external
 20  21.4      0. -90. base_r       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_rc:heater
 21  22.0      0. -90. base_l       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_lc:heater
 22  3.14    270.   0. edge_a       Lexan_2m VERT -:-               LDPE_double              ||< external
 
  
In mid_z               m^2     m^2 to   m^2 to  m^2 back  m^2 to  m^2 to
MLC name               total  ambient  other z  -to-back  ground  similar
fictitious              32.6      0.0     32.6      0.0      0.0      0.0
LDPE_double             64.1     64.1      0.0      0.0      0.0      0.0
earthalt_0.5m           43.3      0.0     43.3      0.0      0.0      0.0
 
 An hourly solar radiation distribution is used for this zone.
 Insolation sources (all applicable):
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22
 Shading patterns have been calculated for this zone.
 
 Ventilation & infiltration is assessed via network analysis
 and the associated network node is: mid_z
 
Notes:
Nothing happens in this zone in terms of occupants lights and small
power. Initial period of 0-24 hour for each.
 
Daytype   Gain Label     Type    Unit Period Sensible  Latent      Radiant    Convec
          No.                          Hours Magn.(W)  Magn.(W)    Fraction   Fraction
weekdays    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
weekdays    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
weekdays    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
saturday    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
saturday    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
saturday    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
sunday      1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
sunday      2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
sunday      3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
holiday     1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
holiday     2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
holiday     3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
planting    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
planting    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
planting    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
 
 ____________________________________________________________
 
 Zone other_end_z ( 4) is composed of 22 surfaces and 40 vertices.
 It encloses a volume of 65.2m^3 of space, with a total surface
 area of 101.m^2 & approx floor area of 27.6m^2
 other_end_z describes far end of polytunnel
 There is 57.151m2 of exposed surface area, 20.305m2 of which is vertical.
 Facade glazing is 20.305m2 &  73.6 % of floor & 100.0 % facade with average U of 2.865 & UA of 58.165
Skylights are 133.50 % of floor area & average U of 3.134 & UA of 115.47
 Opaque partitions:ceiling:floor 27.600m2 & trasparent partitions:ceiling:floor 16.305m2.
 
 A summary of the surfaces in other_end_z( 4) follows:
 
 Sur| Area  |Azim|Elev|          Surface                           | construction             |environment
    | m^2   |deg |deg | name       |optical|locat| use             | name                     |other side
  1  16.3    180.  -0. fict_sep     SC_ficti VERT -:-               fictitious               ||< separator_b:mid_z
  2  16.3      0.   0. other_end    Lexan_2m VERT -:-               LDPE_double              ||< external
  3  2.04    270.  11. edge_b       Lexan_2m SLOP -:-               LDPE_double              ||< external
  4  2.33    270.  31. edge_c       Lexan_2m SLOP -:-               LDPE_double              ||< external
  5  3.12    270.  40. edge_d       Lexan_2m SLOP -:-               LDPE_double              ||< external
  6  2.44    270.  55. edge_e       Lexan_2m SLOP -:-               LDPE_double              ||< external
  7  2.24    270.  63. edge_f       Lexan_2m SLOP -:-               LDPE_double              ||< external
  8  2.05    270.  78. edge_g       Lexan_2m SLOP -:-               LDPE_double              ||< external
  9  2.03    270.  80. edge_h       Lexan_2m SLOP -:-               LDPE_double              ||< external
 10  2.01    270.  84. ridge_l      Lexan_2m SLOP -:-               LDPE_double              ||< external
 11  2.01     90.  84. ridge_r      Lexan_2m SLOP -:-               LDPE_double              ||< external
 12  2.03     90.  80. edge_r_h     Lexan_2m SLOP -:-               LDPE_double              ||< external
 13  2.05     90.  78. edge_r_g     Lexan_2m SLOP -:-               LDPE_double              ||< external
 14  2.15     90.  68. edge_r_f     Lexan_2m SLOP -:-               LDPE_double              ||< external
 15  2.44     90.  55. edge_r_e     Lexan_2m SLOP -:-               LDPE_double              ||< external
 16  2.97     90.  42. edge_r_d     Lexan_2m SLOP -:-               LDPE_double              ||< external
 17  2.88     90.  34. edge_r_c     Lexan_2m SLOP -:-               LDPE_double              ||< external
 18  2.04     90.  11. edge_r_b     Lexan_2m SLOP -:-               LDPE_double              ||< external
 19  2.00     90.   0. edge_r_a     Lexan_2m VERT -:-               LDPE_double              ||< external
 20  13.6      0. -90. base_r       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_rd:heater
 21  14.0      0. -90. base_l       OPAQUE   FLOR -:-               earthalt_0.5m            ||< upper_ld:heater
 22  2.00    270.   0. edge_a       Lexan_2m VERT -:-               LDPE_double              ||< external
 
  
In other_end_z         m^2     m^2 to   m^2 to  m^2 back  m^2 to  m^2 to
MLC name               total  ambient  other z  -to-back  ground  similar
fictitious              16.3      0.0     16.3      0.0      0.0      0.0
LDPE_double             57.2     57.2      0.0      0.0      0.0      0.0
earthalt_0.5m           27.6      0.0     27.6      0.0      0.0      0.0
 
 An hourly solar radiation distribution is used for this zone.
 Insolation sources (all applicable):
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22
 Shading patterns have been calculated for this zone.
 
 Ventilation & infiltration is assessed via network analysis
 and the associated network node is: other_end_z
 
Notes:
Nothing happens in this zone in terms of occupants lights and small
power. Initial period of 0-24 hour for each.
 
Daytype   Gain Label     Type    Unit Period Sensible  Latent      Radiant    Convec
          No.                          Hours Magn.(W)  Magn.(W)    Fraction   Fraction
weekdays    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
weekdays    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
weekdays    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
saturday    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
saturday    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
saturday    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
sunday      1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
sunday      2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
sunday      3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
holiday     1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
holiday     2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
holiday     3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
planting    1 Occupants  people    W    0-24      0.0      0.0       0.60       0.40
planting    2 Lights     lighting  W    0-24      0.0      0.0       0.30       0.70
planting    3 SmallPower equipment W    0-24      0.0      0.0       0.40       0.60
 
 
 ____________________________________________________________
 
 Project floor area is 198.49m2, wall area is 0.00m2, window area is 46.890m2.
 Sloped roof area is 0.00m2, flat roof area is 0.00m2, skylight area is 131.54m2.
 In contact with ground 99.960m2.
 There is 178.43m2 of outside surface area, 46.890m2 of which is vertical.
 
 Glazing is 23.623 % of floor & 100.00 % facade with average U of 2.865 & UA of 134.32
 Skylights are 66.270 % of floor area & average U of 3.134 & UA of 412.23
 Ground contact is 50.360 % of floor area & average U of 0.769 & perimeter 0.00 & max MLC thickness 1.000
 CIBSE ground beta!99.960 dt 2.012 Ufleft 0.009 Ufright 5.057 Uf 0.048 R extra @ virtual layer19.531
 
 ____________________________________________________________
 Multi-layer constructions used:
 
 Details of transparent construction: fictitious with SC_fictit optics and thickness  0.004
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
    1    4.0    20.000    10.    10. 0.99 0.01  19200.  0.00   0.0 fict : fictitious material (almost not there) with matching single layer optics
 ISO 6946 U values (horiz/upward/downward heat flow)=  5.875  7.133  4.757 (partition)  3.843
 Weight per m^2 of this construction    0.04
Kappa (thermal mass value)     0.0
 
 Fictitious 99/99,      4mm, no blind: with id of: SC_fictit
 with 1 layers [including air gaps] and visible trn: 0.99
 Direct transmission @ 0, 40, 55, 70, 80 deg
   0.998 0.987 0.986 0.985 0.984
 Layer| absorption @ 0, 40, 55, 70, 80 deg
    1  0.001 0.001 0.001 0.001 0.001
 Total area of fictitious is     32.61
 
 Details of opaque construction: insul_frame and overall thickness  0.088
 In category frames also shown in menus as: aluminium insulated frame
grey aluminium frame with 80mm of fibre insulation to yield U value of ??.
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
 Ext     4.0   210.000  2700.   880. 0.82 0.72  19200.  0.00  10.8 grey cotd alum : Grey coated aluminium
    2   80.0     0.040    12.   840. 0.90 0.65     30.  2.00   1.0 glass fibre quilt : Glass Fibre Quilt (non-hygroscopic)
 Int     4.0   210.000  2700.   880. 0.82 0.72  19200.  0.00  10.8 grey cotd alum : Grey coated aluminium
 ISO 6946 U values (horiz/upward/downward heat flow)=  0.461  0.467  0.452 (partition)  0.442
 Weight per m^2 of this construction   22.56
Kappa (thermal mass value)    19.0
 Total area of insul_frame is      8.51
 
 Details of transparent construction: LDPE_double with Lexan_2mm optics and thickness  0.023
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
 Ext     1.5     0.330   917.  1550. 0.90 0.80  19200.  0.00   1.4 LDPE_clear : LDPE_clear for horticultural glazing and similar properties from Eng
    2   20.0     -         -      -  -    -         -   -      -   air gap resistance  0.17 0.17 0.17
 Int     1.5     0.330   917.  1550. 0.90 0.80  19200.  0.00   1.4 LDPE_clear : LDPE_clear for horticultural glazing and similar properties from Eng
 ISO 6946 U values (horiz/upward/downward heat flow)=  2.865  3.134  2.570 (partition)  2.277
 Weight per m^2 of this construction    2.78
Kappa (thermal mass value)     4.3
 
 Lexan 2mm polycarbonate: with id of: Lexan_2mm
 with 3 layers [including air gaps] and visible trn: 0.90
 Direct transmission @ 0, 40, 55, 70, 80 deg
   0.711 0.596 0.543 0.398 0.200
 Layer| absorption @ 0, 40, 55, 70, 80 deg
    1  0.104 0.084 0.087 0.088 0.080
    2  0.001 0.001 0.001 0.001 0.001
    3  0.034 0.035 0.034 0.030 0.021
 Total area of LDPE_double is    178.43
 
 Details of opaque construction: earth1.0m and overall thickness  1.000
 In category project specific also shown in menus as: earth1.0m
earth1.0m is a mix of clay gravel and earth 1m thick.
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
 Ext   200.0     1.500  1500.  2085. 0.90 0.70      5.  0.13 300.0 Clay underfloor : Clay underfloor layer (inorganic-porous)
    2  200.0     0.520  2050.   184. 0.90 0.85      2.  0.38 410.0 gravel based : Gravel based (non-hygroscopic)
    3  200.0     0.520  2050.   184. 0.90 0.85      2.  0.38 410.0 gravel based : Gravel based (non-hygroscopic)
    4  200.0     1.750  1900.  1700. 0.90 0.85      5.  0.11 380.0 earth (MK) : earth (milton keynes)
 Int   200.0     1.750  1900.  1700. 0.90 0.85      5.  0.11 380.0 earth (MK) : earth (milton keynes)
 ISO 6946 U values (horiz/upward/downward heat flow)=  0.769  0.787  0.746 (partition)  0.719
 Weight per m^2 of this construction 1880.00
Kappa (thermal mass value)   323.0
 Total area of earth1.0m is     99.96
 
 Details of opaque construction: earthalt_0.5m linked to earthalt_0.5m_inv & with overall thickness  0.500
 In category project specific also shown in menus as: earthalt_0.5m
earthalt_0.5m  mix of clay and earth types in 100mm layers totalling 0.5m
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
 Ext   100.0     1.500  1500.  2085. 0.90 0.70      5.  0.07 150.0 Clay underfloor : Clay underfloor layer (inorganic-porous)
    2  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
    3  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
    4  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
 Int   100.0     1.280  1460.   879. 0.90 0.85      5.  0.08 146.0 earth std : Common_earth
 ISO 6946 U values (horiz/upward/downward heat flow)=  2.057  2.192  1.900 (partition)  1.735
 Weight per m^2 of this construction  866.00
Kappa (thermal mass value)   128.3
 Total area of earthalt_0.5m is     49.27
 
 Details of opaque construction: earthalt_0.5m_inv linked to earthalt_0.5m & with overall thickness  0.500
 In category project specific also shown in menus as: earthalt_0.5m_inv
earthalt_0.5m  mix of clay and earth types in 100mm layers inverted 0.5m
 
 Layer|Thick |Conduc-|Density|Specif|IR  |Solar|Diffu| R    | Kg |Description
      |(mm)  |tivity |       |heat  |emis|abs  |resis|m^2K/W| m^2|
 Ext   100.0     1.280  1460.   879. 0.90 0.85      5.  0.08 146.0 earth std : Common_earth
    2  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
    3  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
    4  100.0     1.750  1900.  1700. 0.90 0.85      5.  0.06 190.0 earth (MK) : earth (milton keynes)
 Int   100.0     1.500  1500.  2085. 0.90 0.70      5.  0.07 150.0 Clay underfloor : Clay underfloor layer (inorganic-porous)
 ISO 6946 U values (horiz/upward/downward heat flow)=  2.057  2.192  1.900 (partition)  1.735
 Weight per m^2 of this construction  866.00
Kappa (thermal mass value)   312.8
 Total area of earthalt_0.5m_inv is     49.98
