Water vapor compression and its various applications

Bin Hu, Di Wu and R.Z. Wang

Renewable and Sustainable Energy Reviews, 2018, vol. 98, issue C, 92-107

Abstract: From the view of environment protection, water refrigerant can completely satisfy the requirements of the energy-saving and emission-reduction. Currently, centrifugal, roots and screw compressor are three main kinds of water vapor compressors. Centrifugal water vapor compressor has the advantage of larger volume flow rate, but it has smaller single stage compression ratio, high discharge temperature, droplet sensitivity and severe and expensive blade materials. The largest volume flow rate and smallest compression ratio system is more suitable application field for centrifugal water vapor compressor. Roots water vapor compressor has the advantages of less vibration components and simple structure. However, it also has smaller compression ratio compared with screw water vapor compressor, which results in that it is usually used in the small volume flow rate, medium heating capacity and temperature rise systems. Screw water vapor compressor has the advantages of good stability, larger compression ratio and wet compression; however its volume flow rate is not very large. It is more suitable for the refrigeration system with medium and smaller volume flow rate and larger compression ratio.

Keywords: Water refrigerant; Water vapor compressor; Compression ratio; Mechanical vapor recompression; Water vapor heat pump (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (13)

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DOI: 10.1016/j.rser.2018.08.050

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