Analysis and Evaluation of Heat Pipe Efficiency to Reduce Low Emission with the Use of Working Agents R134A, R404A and R407C, R410A

Łukasz Adrian, Szymon Szufa, Piotr Piersa, Piotr Kuryło, Filip Mikołajczyk, Krystian Kurowski, Sławomir Pochwała, Andrzej Obraniak, Jacek Stelmach, Grzegorz Wielgosiński, Justyna Czerwińska and Przemysław Kubiak
Additional contact information
Łukasz Adrian: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Szymon Szufa: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Piotr Piersa: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Piotr Kuryło: Faculty of Mechanical Engineering, University of Zielona Góra, Licealna Street 9, 65-417 Zielona Góra, Poland
Filip Mikołajczyk: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Krystian Kurowski: Faculty of Biology and Environmental Science, Cardinal Stefan, Wyszynski University in Warsaw, Wójcickiego 1/3, 01-938 Warsaw, Poland
Sławomir Pochwała: Faculty of Mechanical Engineering, Opole University of Technology, 45-271 Opole, Poland
Andrzej Obraniak: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Jacek Stelmach: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Grzegorz Wielgosiński: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Justyna Czerwińska: Faculty of Process and Environmental Engineering, Lodz University of Technology, Wolczanska 213, 90-924 Lodz, Poland
Przemysław Kubiak: Institute of Vehicles, Warsaw University of Technology, str. Narbutta 84, 02-524 Warsaw, Poland

Energies, 2021, vol. 14, issue 7, 1-29

Abstract: This paper presents an analysis of methods to increase the efficiency of heat transfer in heat exchangers. The scope of the research included analysis of efficiency optimization using the example of two tubular heat exchanger structures most often used in industry. The obtained efficiency of heat recovery from the ground of the examined exchangers was over 90%, enabling the reduction of emissions of the heating systems of buildings. The paper presents the results of tests of two types of heat pipes using R134A, R404A, and R407C working agents. The paper also presents the results of experimental tests using the R410A working medium. The results included in the study will also enable the effective use of land as a heat store.

Keywords: heat pipe; heat transfer; heat exchanger; phase change; evaporation; condensation; low emission (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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