High temperature cascade heat pump system with double medium and low temperature heat sources

Heat Pump with Two Heat Sources on Different Temperature Levels

Aim of this project is the development of a new heat pump system with economizing that is able to improve the heating performance using two or more heat sources at different temperature levels. These heat sources are incorporated into the system with minimal loss of exergy by adding the heat at different pressure levels. Practical applications for such systems are for example buildings with a h...

High Temperature Heat Pump Research and Development

Development of High-Temperature Heat Pump Using

four kinds of refrigerant mixtures R22/Rl34a, R22/Rl52a, R22/Rl42b and R22/Rl23, which contain some new halocarbons which are considered to be the alternatives for CFCs, were evaluated in order to realize higher condensing temperature than that using R22 at high temperature operation, and larger heating capacity than that using R22/Rll4 at normal temperature operation. These mixtures were appli...

Thermal and Hydraulic Performance of Heat Exchangers for Low Temperature Lift Heat Pump Systems

Application of Plate Heat Exchanger for Low Temperature Lift Heat Pump Systems

Title of Document Application of Plate Heat Exchanger for Low Temperature Lift Heat Pump Systems Song Li, Master of Science, 2012 Advisor Professor Reinhard Radermacher, Department of Mechanical Engineering In this thesis I investigated the energy saving potential of a low temperature lift heat pump (LTLHP) such as water source heat pump (WSHP), and studied the utilization of a plate heat excha...