Development of advanced heat transformers utilizing new working fluids
Abstract Based on experience from an industrial-scale heat transformer, which is now commercially available, GEA has embarked on a new research and development programme: the development of an advanced heat transformer and investigation into the combination heat transformer/absorption heat pump. Advanced heat transformers are heat transformers utilizing new working fluids and/or a multi-stage absorption plant. A brief report is presented on an experimental research programme at the University of Essen which aims to discover new working fluids for sorption plants. Some of the most important results for heat transformer application are presented in the form of graphs or tables and the suitability of the new working fluids is compared with some well-known working couples. The Industrial requirements for an advanced heat transformer are also considered along with the possibility of meeting these requirements. Finally, the heat transformer is discussed in the context of other heat recovery systems on the basis of two fictitious industrial applications.