Abstract
Aiming at the facts that lots of low temperature waste heat from some industries(such as oil, chemical, power and steeel works) is abundant but rarely used, a waste heat recovery analog experiment on a home-made high temperature heat pump set-up is conducted. According to the test data and results, the empirical expressions of all performance indexes are regressed under the condition of using R142b as refrigerant, heat source temperature at 35~45℃, heating temperature at 60~ 85℃, and compressor output at 2.3-3.7 kW. Also the impacts of parametric variations on performance indexes is analyzed. Furthermore, an engineering trial is performed by an industrial heat pump made overseas operating in oil field. The investigations indicate massive energy can be saved if heat pump is applied to recover the low temperature waste heat from oil production process. The operating cost of heat pump system is nearly the same as that of heater system, which restricts the popularization of heat pump.
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