Overview of the M-Cycle Technology for Air Conditioning and Cooling Applications

Jan Taler, Bartosz Jagieła and Magdalena Jaremkiewicz
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Jan Taler: Department of Power Engineering, Cracow University of Technology, Al. Jana Pawla II 37, 31-864 Cracow, Poland
Bartosz Jagieła: Department of Power Engineering, Cracow University of Technology, Al. Jana Pawla II 37, 31-864 Cracow, Poland
Magdalena Jaremkiewicz: Department of Thermal Processes, Air Protection and Waste Utilization S-5, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland

Energies, 2022, vol. 15, issue 5, 1-19

Abstract: The indirect evaporative cooler (IEC) has excellent potential to replace or improve conventional vapor compression equipment in HVAC and refrigeration applications. This could be achieved by using the M-cycle (dew-point evaporative cooling technology). This thermodynamic concept makes it possible to derive a large amount of energy from the air stream (as latent heat released during water evaporation into the working air stream) and use it for another air stream (product). Its application has also spread to other sectors, such as water desalination and distillation, power plants, or NOx reduction. This paper provides an overview of the M-cycle mainly in air conditioning (MAC, D-MAC, H-MAC) and refrigeration (MCT, M-condenser). Various integrated solutions are described, showing improved effectiveness in terms of the wet-bulb temperature and the dew point. The design features of consolidated solutions are better In terms of the flow distribution, geometry, or volume. Most of the improvements confirm the great potential of the M-cycle to increase the unit or the system efficiency due to lower energy and water consumption.

Keywords: M-cycle; Maisotsenko cycle; IEC; indirect evaporative cooler (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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