IEA Solar Heating and Cooling Programme: Difference between revisions

Revision as of 23:11, 19 January 2020

Revision as of 18:57, 26 January 2021

Line 42:

The idea behind Task 13 was to push [[construction]] technology towards its limits to achieve the lowest possible total purchased [[List of energy resources|energy]] consumption. Task 13 was part of the [[International Energy Agency|IEA]] ''Solar Heating and Cooling Programme'', to test the designs and techniques, and to monitor their performance.

On average, the houses were designed to require 44 [[kWh]]/m²², 75% lower than the average 172 kWh/m²² that would have been required had the houses been built to normal standards. (Analysis of 11 of the houses in use indicated that total savings made in practice was actually 60% [http://www.forskningsdatabasen.dk/cgi-bin/egwddf2/6969/screen.tcl/host=ddfcat&host=ddf&gattr1=parseOp&v=1&fe=10&e11=indoor&f11=all&l11=and&s1=sortkey&page=28&name=show_record&norec=1&ppage=30&lposddfcat=7&lposddf=24&service=ddf%32&context1=b&lang=eng]). The 44 kWh/m²² resulted from:

*[[Electricity]] – 18 kWh/m²²

*[[Space heating]] – 14 kWh/m²²

*Water heating – 11 kWh/m²²

*Cooling – 1 kWh/m²²

In addition there was an average solar contribution designed to average 37 kWh/m²², from a combination of [[passive solar]] gains, [[active solar]], and [[photovoltaics]].

The buildings were constructed to be [[airtight]], [[superinsulation|superinsulated]] to roughly double normal standards, and to minimise [[thermal bridge]]s. [[Masonry]] and several [[timber frame]]d methods were represented, as well as newly designed [[steel]] strengthened [[polystyrene]] block walls. The Berlin "Zero Heating Energy House" included a {{convert|20|m3}} [[Seasonal thermal energy storage|seasonal thermal store]].[http://wire.ises.org/wire/doclibs/EuroSun96.nsf/id/F7DE064B758101BDC12565E6003737C3/$File/paper.pdf]