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Development and Implementation of Industrial High Temperature Heat Pumps for Waste Scrubbing Process.

Number: No 240

Author(s) : LEE G., LEE B., CHO J., RA H. S., BAIK Y. J., WANG E. S., SHIN H. S., LEE Y. S., ROH C.

Summary

In this study, industrial heat pump which can generate low pressure steam was developed. The heat pump uses process waste heat of 50-60°C to generate 120°C, 2kgf/cm2 steam. By implementing this, the overall thermal energy efficiency of a factory can increase. In case of R134a, the discharge temperature and pressure of compressor was expected to be in supercritical state around 200°C/10 MPa. To locate operation points in lower temperature and pressure zone, R245fa was selected as a working fluid. Cycle and system design was performed based on R245fa properties. With the experiment results of small-scale, reciprocating-compressor system, large scale system design of screw-compressor was carried out. Since this system was to be applied to actual operation, control logic with high reliability was also developed. After in-lab tests, the heat pump was installed to supply steam for waste scrubbing process in a chemical factory. 

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  • Original title: Development and Implementation of Industrial High Temperature Heat Pumps for Waste Scrubbing Process.
  • Record ID : 30030054
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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