Annex 33

Economical Heating and Cooling Systems for Low Energy Houses

The principal goal of the annex is to identify compact heat exchangers, either existing or under development, that may be applied in heat pumping equipment - including those using vapour compression, mechanical vapour recompression and absorption cycles. This has the aims of decreasing the working fluid inventory, minimising the environmental impact of system manufacture and disposal, and/or increasing the system performance during the equipment life.

A second goal is to identify, where necessary propose, and document reasonably accurate methods of predicting heat transfer, pressure drop and void fractions in these types of heat exchangers.

A third goal is to present listings of operating limits etc. for the different types of compact heat exchangers, e.g. maximum pressures, maximum temperatures, material compatibility, minimum diameters, etc. and of estimated manufacturing costs or possible market prices in large scale production.

PageTop▲