Highrise Case Study

This case study concentrates on Glasgows most visual house type - the high rise. Many of the highrises were built in the 1960s and 70s. They are normally very energy inefficient with huge heating demands and many have only all-electric heating.


Description of Current Building:

The building is simulated to be electrically heated, insulated to less than 50mm, have single glazing and have an average natural ventilation rate of 0.75ach-1.

Description of Upgrade:

Heating Demand Reduction Measures

  1. Insulation up to 300mm
  2. Double Glazing
  3. Decreased ventilation rate of 0.45ach-1
  4. Smart temperature control system

Electricity Demand Reduction Measures

  1. 25% reduction in daytime electricity base load to simulate energy efficiency appliances and light bulbs
  2. Peaks are clipped to around 1250W per household

Mini- CHP system

Hybrid CHP system which takes electricity from grid during peak conditions
System not designed to require exporting electricity to the grid
Uses 3 Baxi Dachs 5.34kWe CHP system.

For the high-rise block, a larger system will be looked: what we are calling mini-CHP. The Baxi Dachs CHP produces around 5.34kWe and have throughout Europe over 17,000 of these units have been installed.

 

Performance Specification

Electrical Efficiency

Please goto here to download a copy of the spreadsheet and to see the calculation procedure in greater detail.

 

© University of Strathclyde 2009