Abstract
A novel bi-functional integration system for power and heat supply based on power generation technology and heat pump technology was proposed and designed in this paper, and the objective was to maximum energy efficiency with the exploitation of the waste heat source as much as possible. This system could be applied in low temperature waste heat recovery with a wide temperature range. In the experiment, a test bench for permanent magnet synchronous machine (PMSM) was built firstly to examine the performance that one PMSM could be a generator and electromotor. Based the first experimental results, the second test bench was built to investigate the performance of the bi-functional integration system using R142b as working fluid in different working conditions. The results indicated that the bi-functional integration system had good feasibility and stability in both reverse Carnot cycle (RCC) heat pump mode and organic Rankine cycle (ORC) power generation mode.
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