Out of the many promising applications of metal hydrides, refrigeration, heat pumping and heat transformation are important. In order to achieve improved performance, a novel three-alloy cycle is proposed in which, for heat input at an intermediate temperature, heat outputs at high temperature...

A thermodynamic analysis of a single-stage vapour absorption refrigeration system operating with a transfer tank is presented with R22-DMF as working fluid. The effects of generator, condenser and evaporator temperatures on performance parameters such as circulation ratio, percentage of...

P-T-X data for nine combinations of R22-absorbent solutions are presented as correlations. A comparative study of these working fluids in absorption refrigeration systems is made. Based on cut-off temperature and circulation ratio considerations DMEDEG, DMETEG, DMETrEG, DMF and DMA are...

An experimental saturated solar pond is constructed using magnesium chloride salt. The temperature and concentration gradients are developed by heating the pond from the bottom and adding powdered salt from the top. The experiments show that there is an optimum heating temperature range within...

Experiments have been carried out on a scale model of stratified hot-water storage tanks to study the effects of operating conditions on the thermoclines and on the extraction efficiency. The following parameters were varied: the cold-water temperature (from 30 to 80 °C), hot-water temperature...

In the three-pressure vapour absorption refrigeration system analysed here, a pressure control valve is introduced between the generator and the condenser of the conventional two-pressure system. This permits the generator to operate at higher pressures than those at the condenser. A comparative...