|
Task |
Instruction |
| 1 |
Use AutoCad to create a simple two zone geometry and save
this in dxf format. Import the dxf file to the Project Manager. |
The *cad directive of the .esprc file is used to define
the CAD program to be used by the Project Manager. Note that only certain
DXF constructs may be used to create the zone geometry if the Project Manager
is to process the return. These include LINE (if extruded), 3DFACE, 3DPOLY
and BLOCK. The creation of a named LAYER for each thermal zone, (a facility
available in most CAD packages), is encouraged in order to associate CAD
entities with thermal zones. |
| 2 |
Repeat stage 1 but use an alternative CAD program. |
The Project Manager is also able to operate with the XZIP
system. Use the *CAD directive of the .esprc file to activate this program.
Import the defined geometry to the Project Manager. |
| 3 |
Attribute an imported geometry in terms of constructions
and zone operation. |
Standard databases are supplied with ESP-r or you can create
your own. Use the construction elements and composites databases for constructional
attribution and the profiles database for operational attribution. |
| 4 |
Visualise the problem geometry and associate the resulting
image with the problem as held in the Project Manager. |
Both wire-line and colour rendered images can be automatically
generated. In the former case, the VIEWER system is used to provide hidden
line images for given camera parameters in support of photomontage displays.
In the latter case, the RADIANCE system is used to determine object illumination
under specified lighting and thereby produce coloured, rendered images. |
| 5 |
Load an exemplar model and explore the supplementary zone
data structures supported by the Project Manager. |
These include, among others, casual gain (e.g. lighting)
control, blind/shutter control and transparent multi-layered constructions
in which the individual layers are modelled in some detail. |
| 6 |
Examine the control system as associated with the selected
exemplar problem. Create a control definition from scratch. |
ESP-r offers many controller types. Start with a simple
control system such as time scheduled, thermostatically controlled, convective
heat input. |
| 7 |
Commission a simulation and explore the results analysis
and report generating facilities. |
The directives of the .esprc file can be used to define
the tools that the Project Manager should invoke. As delivered, these directives
will comply with the report production tools as employed at ESRU. These
include tools for Postscript previewing, image display and format conversion,
data analysis and graphing and word processing. Note that the Project Manager
also maintains a library of standard reports. |
| 8 |
Optional: Take one of the exemplars and "export" it to the
format used by a CAD package. Observe the conventions adopted in the resulting
file as well as the degree to which the exemplar was correctly translated
to the native format of the CAD package. |
The filters between esp-r and other tools are generally
bi-directional. As esp-r holds a superset description of the problem such
information can be exported in a number of formats. By looking at the resulting
files you may be able to formulate the rules by which CAD tools can be
better used to construct simulation models. |
|
Task |
Instruction |
| 1 |
Load and explore an exemplar problem containing an air flow
network representing a naturally ventilated building. Change and analyse
an existing similar network, and simulate using ESP-r's non-integrated
solver. |
Use the basic exemplar with scheduled infiltration and controlled
ventilation which relates to a 3 zone building with controlled window opening.
Note the format of the flow results file and the capabilities of the related
simulation and analysis tool. |
| 2 |
Load and explore an exemplar problem defining a plant network
with user specified fluid flow. Change and analyse an existing network,
and simulate using ESP-r's non-integrated solver. |
Use the wet central heating system plant exemplar which
relates to a wet central heating system serving a one zone building. Note
how the fluid flow is specified within the plant network file, and be aware
that this value is regarded as the default value, which might be over-ridden
by a plant control loop. Note the results analysis capabilities, especially
those available at the component level. |
| 3 |
Load and explore an exemplar problem defining a combined
building and plant system with air and fluid flow activated. Change and
analyse an existing network, and simulate using ESP-r's integrated solver. |
Use the ventilation heat recovery plant exemplar which relates
to a ventilation heat recovery system with plant and mass flow. Note how
the plant and flow networks are integrated with the building model within
the system configuration file. The mapping between plant and flow network
is in terms of plant connection to fluid flow connection. Note also how
a control file is used to link plant components with building zones. |
| 4 |
Explore the control system definition facility and create
alternative building, plant and flow control networks. |
Load and explore the basic exemplars representing respectively
air and floor heating conceptually modelled using ideal control laws. Note
the terminology: day types, period types, sensors, actuators and laws.
Note also the range of control laws on offer for the building, plant and
flow systems. |
|
Task |
Instruction |
| 1 |
Load and explore an exemplar problem relating to time varying
thermo-physical properties. Create a definition from scratch and simulate
using ESP-r's integrated solver. |
Use exemplar "time dependent thermophysical property substitution".
Note how the material properties can be specified as linear or non-linear
functions of temperature or moisture. |
| 2 |
Load and explore exemplar problems defining one-dimensional
adaptive, two-dimensional and three-dimensional conduction schemes. Create
some definitions from scratch and simulate using ESP-r's integrated solver. |
Use exemplars "adaptive 1-D gridding", "adaptive 3-D gridding"
and "3-D ground modelling". Note how the two- and three-dimensional schemes
might be used to more explicitly model thermal bridges and ground slab
processes. |
| 3 |
Load and explore an exemplar problem defining moisture flow
within a zone/ construction. Create a similar network from scratch and
simulate using ESP-r's integrated solver. |
Use exemplar "moisture flow modelling". |
| 4 |
Load and explore an exemplar problem defining mould growth
at a building surface. Create a similar network from scratch and simulate
using ESP-r's integrated solver. |
Use exemplar "mould infested house". Note the need for an
enhanced nodal scheme and explicit moisture flow modelling in support of
local surface conditions prediction. Note also ESP-r's moulds database
and mould probability estimation tool. |
| 5 |
Load and explore an exemplar problem defining a CFD domain.
Create a similar domain definition and commission a steady-state and transient,
CFD only simulation using ESP-r's non-integrated solver. |
Use exemplar "Analysis of a radiant heating problem (CFD
active)". Note the iteration control parameters and the procedures for
results display. |
| 6 |
Load and explore an exemplar problem defining a CFD domain
integrated within the building model and commission a simulation using
ESP-r's integrated solver. |
Use exemplar "CFD analysis of a displacement ventilation
system". |
| 7 |
Load and explore an exemplar problem defining photovoltaic
cells integrated within a building facade in order to generate electrical
power and heat. Commission a simulation using ESP-r's integrated solver. |
Use exemplar "passive combined heat and power using photovoltaic
facades". Note that explicit electrical power and air flow networks are
added to the building model in order to determine the extent to which the
generated power and heat can be used. |
|
Task |
Instruction |
| 1 |
Load (own it) and explore the exemplar problem containing
one zone model with daylight
coefficient method, and simulate using ESP-r's integrated solver. |
Use the one zone exemplar with light shelf facade, blind
and artificial lighting control. Explore the model job.notes for
problem description, operation file for definition of the artificial
lighting schedules and power rating, casual gains control file for
artificial lighting control setting definitions and TMC file for
blind control definition. Make sure you do understand all inputs and interactions
between different control systems. Change different artificial lighting
and blind control settings, and rerun simulation. Use trace facility to
obtain detailed output from lighting simulation. |
| 2 |
Load (own it) the exemplar problem containing one zone model
with daylight coefficient
method, strip down casual gains control file, try to recreate it and simulate
using ESP-r's integrated solver. |
Use the one zone exemplar with light shelf facade, blind
and artificial lighting control. Strip down casual gains control file (keep
backup copy for later reference!) and try to recreate it.
After finishing casual gains control definition and exiting menu select
Create and edit model to set up Radiance model. This will invoke
Radiance desktop module in automatic mode. After Radiance model creation
is completed (this can take a little while - wait for radiance desktop
menu to appear) you can edit Radiance model by selecting Create/ edit
scene description and selecting Zone & outside composition
and visiting Browse/ edit menus. After you have made any desired
editting to Radiance model (at least basic Radiance knowledge is required!)exit
to the Radiance desktop top menu.
To check/ edit Radiance calculation parameters select Calculate/
view scene and then select Scene parameters options. After changing
desired settings (at least basic Radiance knowledge is required!) Update
RIF file and try dry run to see calculation parameters in the
text window. Exit Radiance desktop.
After exiting Radiance desktop control is returned to Project manager.
Then it is possible to select Calculate coefficients from the menu
provided. However this is not recommended as the calculation usually takes
a lot of hours. Instead used daylight coefficients from the backup casual
gains control file you have created at the beginning of this exercise.
To calculate daylight coefficients it is recommended to start background
calculation on a relativelly powerful computer with the command:
e2r -file config.file -purpose Day_coef -zone 1 -act Calculate -mode
text &
Start integrated simulation with enabled trace facility for the zone
casual gains for more detailed lighting simulation results. |
| 3 |
Load (own it) and explore the exemplar problem containing
one zone model with direct
coupling method. Strip down casual gains control file, try to recreate
it and simulate using ESP-r's integrated solver. |
Carry out this exercise in very similar way as the previous
one. The only difference is that there is no precalculation (i.e. daylight
coefficients)with this method as the lighting simulation is iniciated at
the thermal simulation time step level.
In order to appreciate any results in the reasonable time scale make
sure that optimal Radiance calculation parameters have been set (at least
basic Radiance knowledge is required!) and you are running on a relativelly
powerful computer. |
| 4 |
Load (own it) and explore the exemplar problem containing
four zones office model with electrochromic glazing and artificial
lighting control, and simulate using ESP-r's integrated solver. |
Use the four zones exemplar with an electrochromic glazing
and an artificial lighting photoelectric control. Explore the model job.notes
for the problem description, operation file for the definition of
the artificial lighting schedules and power rating, casual gains control
file for the artificial lighting control setting definitions and TMC
file for the electrochromic glazing control definition. Make sure you do
understand all inputs and interactions between different control systems.
Change different artificial lighting and electrochromic control settings,
and rerun simulation. Use the trace facility to obtain detailed output
from the lighting simulation. |
|
Task |
Instruction |
| 1 |
Load and explore an exemplar problem relating to a real
building and incorporating thermal and lighting sub-systems. |
Use the Queen's Building exemplar which relates to a day-lit
space within an engineering school at De Montfort University. |
| 2 |
Set up control for the switching of lights based on illuminance
levels at specified points. Commission simulations covering energy and
visual aspects. |
Obtain daylight factors for user-specified points, and input
them into the lighting control module. Undertake simulations for a typical
winter week using one hourly time steps, with lights switching off above
300 lux. |
| 3 |
Using the simulation results from Step 2, extract the data
required to produce an `Integrated Performance View' (IPV). |
An IPV comprises information on building loads, energy consumption,
gaseous emissions and thermal and visual comfort placed on a single page. |
| 4 |
Present the IPV in graphical form. |
Demonstration only. |
| 5 |
Repeat the simulation exercise for a different light switching
regime and use the IPV format to make a com-parison of the combined lighting
and thermal performance. |
Observe how this performance methodology can be used to
make a global evaluation of design options. |
| 6 |
Load and explore an exemplar problem defining uncertainty
analysis and commission a simulation using ESP-r's integrated solver. |
Demonstration only. |