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Effect of compressor speeds on performance of industrial waste water treatment system driven by heat pump based on humidification-dehumidification principle.

Number: 2369

Author(s) : WU Q., ZHANG L., LIU C., ZHOU Y.

Summary

This paper designs and builds a set of industrial wastewater treatment system driven by heat pump based on principle of humidification and dehumidification. The influence of compressor speed on performance of whole humidification and dehumidification system is studied. The results show that: with raise of compressor speed within 1800 to 4800 r/min, suction pressure and temperature of compressor are almost unaffected, while exhaust pressure and temperature of compressor all increase. Inlet and outlet temperature of humidifier keeps rising, while relative humidity of inlet and outlet is basically unchanged. Power, refrigeration capacity and heating capacity of system are increasing, while COP (coefficient of performance) of system is decreasing. Moisture extraction rate (MER) rises with the raise of compressor speed, while specific moisture extraction rate (SMER) is almost constant. In actual industrial wastewater treatment process, compressor speed should be adjusted according to specific demand to balance relationship between COP and MER. When COP of the system is mainly concerned, compressor speed should be reduced as much as possible. When MER of the system is mainly considered, compressor speed should be increased as far as possible under condition of ensuring safety of heat pump system and compressor.

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  • Original title: Effect of compressor speeds on performance of industrial waste water treatment system driven by heat pump based on humidification-dehumidification principle.
  • Record ID : 30030698
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

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