Performance Analysis of Solar Combined Ejector-Vapor Compression Cycle Using Environmental Friendly Refrigerants

Kasaeian, Alibakhsh; Daviran, Samaneh

doi:10.31436/iiumej.v14i1.302

Cited by 3 publications

(2 citation statements)

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“…The methodology for calculating the LCCP described below was investigated from the available literature [29]. The LCCP is the sum of the direct and indirect emissions in the operation of a refrigeration system, and it is based on (15) and is measured in kgCO 2eq or the SLCCP in kgCO 2eq /kWh. LCCP = Direct emissions + Indirect emissions (15) Direct emissions refer to the environmental impact produced by refrigerant leaks once it is charged to the installation, and its calculation is conducted with (18).…”

Section: Life Cycle Climate Performance Studymentioning

confidence: 99%

“…Using the higher-capacity compressor, under similar operating conditions, R1234ze(E) presented capacity and efficiency at percentage values of 105% and 90%, respectively. Finally, other papers [10][11][12][13][14][15][16] have demonstrated, with energy studies, the use of R1234ze(E) as a feasible alternative to R134a in various applications.…”

Section: Introductionmentioning

confidence: 99%

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Internal Heat Exchanger Influence in Operational Cost and Environmental Impact of an Experimental Installation Using Low GWP Refrigerant for HVAC Conditions

et al. 2022

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The use of an internal heat exchanger in vapor compression refrigeration systems of one stage is a common practice because it helps to increase the cooling capacity in the evaporator. Furthermore, the use of refrigerants with low global warming potential is becoming more frequent due to environmental regulations worldwide. Thus, this paper presents an evaluation of the improvement produced by the inclusion of an internal heat exchanger cycle (IHXC) in an experimental installation from the viewpoint of exergy, economic and environmental through to exergy, exergoeconomics, and Specific Life Cycle Climate Performance (SLCCP) studies. The tests were conducted using R1234ze(E) as a replacement alternative to R134a in three evaporating temperature conditions: 4 °C, 9 °C, and 14 °C. Comparisons were made considering R134a in BRC mode versus R1234ze(E) in BRC and IHXC modes. Results show that a lower environmental impact is produced by an evaporating temperature of 14 °C with a reduction in SLCCP of 13.3% using IHXC and R1234ze(E). Moreover, the highest increase in exergy efficiency was observed for an evaporating temperature of 4 °C, with this increase being 9%, while the lowest increase in the total cost rate was observed for the same evaporating temperature, being 12.3% and 21.2% for BRC and IHXC modes using R1234ze(E), respectively.

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Section: Life Cycle Climate Performance Studymentioning

confidence: 99%