Toprak Kaynaklı Bir Isı Pompasında R410A’ya Alternatif Soğutucu Akışkanların ASHRAE Sınıflandırmasına Göre Teorik Olarak İncelenmesi

Abstract

Today, environmental pollution and global warming have become global threats. The use of renewable energy sources is a rational approach to overcome this problem, and ground source heat pumps also play an important role in this approach. However, the refrigerants used in these systems often have global warming potential values above the specified norms. In this study, using the Engineering Equation Solver package program, the performance values and environmental effects of R410A alternative refrigerants were analyzed theoretically according to ASHRAE safety groups with the help of the data obtained from the experimental study. The results showed that the R32 increases the COP value by 3.1% and reduces the mass flow rate by nearly 35%. It has been calculated that R152a provides the most successful results in the study. R152a provided an 8.5% increase in COP compared to R410A. It has been observed that the operating costs of R452B, R454B and R454C, which are specified as alternative refrigerants by environmental protection agency, are higher than R410A. In the study, it was determined that the R454C has the lowest values in all respects. It has been calculated that using R32 instead of R410A reduces the CO2 equivalent emissions by approximately 2.54%.