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Persistent link: https://www.econbiz.de/10008913623
Based on the performance analysis of the single stage, the two-stage and the double absorption heat transformer, a new ejection-absorption heat transformer is presented and analyzed in this paper. The results show that it has a simpler configuration than the double absorption heat transformer...
Persistent link: https://www.econbiz.de/10008916409
The absorption heat transformer (AHT) is a promising system for recovering waste heat. It can effectively recover about 50% of the waste heat and reuse it in industrial processes. However, there exists a need for identifying suitable working fluid combinations and for evaluating their relative...
Persistent link: https://www.econbiz.de/10008918795
A ternary mixture of R124/R142b/R600a, named HTR01, for moderately high temperature heat pumps, was developed. Tests of material compatibility and oil miscibility showed that the mixture could be used with a R22 compressor in an HTR01 heat-pump system. A 2.92 kW moderately high temperature water...
Persistent link: https://www.econbiz.de/10008919145
The conventional two-step thermal processing of phosphoric acid wastes enormous amounts of energy, which causes serious environmental pollution in addition to bad economic performance. A two-step waste heat recovery method using a “phosphorus burning boiler” was developed to reduce energy...
Persistent link: https://www.econbiz.de/10011053731
The ORC (organic Rankine cycle) system is one of the most effective approaches for recovering energy from low grade heat sources like geothermal water. This paper describes the screen of fluids for geothermal ORC system. This study analyzed the influence of the working fluid properties of HC...
Persistent link: https://www.econbiz.de/10011054614
There is overwhelming empirical evidence on the existence of country and industry momentum effects. This line of research suggests that investors who buy country and industry portfolios with relatively high past returns and sell countries and industries with relatively low past returns will earn...
Persistent link: https://www.econbiz.de/10010987753
This paper examines the ability of balanced pension plan managers to successfully time the equity and bond market and select the appropriate assets within these markets. In order to evaluate both market timing abilities in these balanced pension plans, we extend the traditional equity market...
Persistent link: https://www.econbiz.de/10010606788
We measure the economic value of information derived from macroeconomic variables and from technical trading rules for emerging markets currency investments. Our analysis is based on a sample of 21 emerging markets with a floating exchange rate regime over the period 1997-2007 and explicitly...
Persistent link: https://www.econbiz.de/10005066642
Persistent link: https://www.econbiz.de/10005194310