Experimental Performance Evaluation of a PV-Powered Refrigeration System

Ekren, Orhan; Yılancı, Ahmet; Cetin, Engin; Öztürk, Harun Kemal

doi:10.5755/j01.eee.114.8.684

Cited by 20 publications

(16 citation statements)

References 6 publications

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“…The results showed that there was no deference in the performance of the air conditioning unit when using the same refrigerant and changing the source of power from mains to solar power. Same results were obtained by: [3][4][5]. This study aimed to reduce the power generated to the limit that production can't succeed to sustain acceptable operation.…”

Section: Introductionmentioning

confidence: 65%

Performance Study of a DC Refrigerator Powered by Different Solar PV Modular Sets: paper II.

2018

dom

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This study exhibits the performance of a DC domestic use refrigerator. Sixty Watts rated power unit was used. Two PV sources of solar electricity power of 100 Wp and 70 Wp modules. A battery of 12 V and 21 Ah, was connected to the cycle. The experiments were carried out using five different conditions for the power connection: The battery was used in different conditions as follows: standalone full charged; either initially full charge or completely discharged and connected with either one of the module generator. Five experiments with different combinations in the connection conditions of the battery and the modules. The on/off sequence effect on the performance of: Te; Tc and, TL were mainly monitored. In this study, it was required to study the lowest solar power supply condition that may be unsuitable to sustain continuous operation. This helps generators designers and conserves energy. Acceptable performance was reached in four experiments. The fifth experiment was with initially completely discharged battery with the 70 W. module, gave continuous cyclic on/off which is an unacceptable performance.

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Section: Introductionmentioning

confidence: 65%

Performance Study of a DC Refrigerator Powered by Different Solar PV Modular Sets: paper II.

2018

dom

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“…More recent studies have shown the adaptation of commercial refrigerators to work with DCCompressors as shown in [10]. The obtained COPs were similar for AC refrigerators equipped with inverters [11], [9] and those using DC-Compressors [12], [13], [10] being around 1.7 to 2 for temperature differences between ambient and air compartment of around 25°C. The performance monitoring of the whole solar system has been recently described in [14].…”

Section: Introductionmentioning

confidence: 69%

Performance characterisation of a small milk cooling system with ice storage for PV applications

Torres-Toledo

Meissner

Coronas

et al. 2015

International Journal of Refrigeration

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“…Exergy analysis in the field of refrigeration gives the performance of individual components and also provides a better understanding to improve the system performance. 19 Ekren et al 20 performed exergy analysis on a solar-powered DC refrigerator and observed maximum exergy destruction in the compressor, followed by the condenser, evaporator, and capillary tube. Ekren et al 21 carried out the exergy analysis of a DC refrigerator at various compressor speeds.…”

Section: Introductionmentioning

confidence: 99%

“…19 Ekren et al. 20 performed exergy analysis on a solar-powered DC refrigerator and observed maximum exergy destruction in the compressor, followed by the condenser, evaporator, and capillary tube. Ekren et al.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis on optimizing the capillary tube length of a milk chiller using DC compressor operated with HFC-134a and environment-friendly HC-600a refrigerants

Sidney

Prabakaran

Lal

2019

Proceedings of the Institution of Mechanical Engineers, Part E:

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In this work, the thermal analysis on optimizing the capillary tube lengths of a dual circuit refrigeration system was carried out experimentally. Two refrigeration circuits were individually operated using two DC powered compressors (HFC-134a and HC-600a) instead of conventional AC powered compressors. The capillary tube optimization was done to maximize the coefficient of performance and exergy efficiency. From the results, it was found that the power consumption and the refrigerant mass flow rate decreases with the increase of capillary tube length for both the HFC-134a and HC-600a circuits, while the refrigeration capacity and coefficient of performance increased up to the capillary tube length of 4.57 m and then decreased. The maximum refrigeration capacity, ice formed, power consumption, and coefficient of performance experienced in the HC-600a circuit were 9.65%, 19.03%, 3.53%, and 7.34% lower than those of the HFC-134a circuit at the optimum capillary tube length. It was also found that at the optimum capillary length, the COP was maximum for the HFC-134a circuit while the exergy efficiency was maximum for the HC-600a circuit. The exergy efficiency of the HC-600a circuit was 11.13% higher than that of the HFC-134a circuit. At the optimum capillary tube length, the total equivalent warming impact values of the HFC-134a and HC-600a circuits were 961.13 kg CO2-eq and 785.77 kg CO2-eq, respectively.

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Experimental Performance Evaluation of a PV-Powered Refrigeration System

Cited by 20 publications

References 6 publications

Performance Study of a DC Refrigerator Powered by Different Solar PV Modular Sets: paper II.

Performance Study of a DC Refrigerator Powered by Different Solar PV Modular Sets: paper II.

Performance characterisation of a small milk cooling system with ice storage for PV applications

Thermal analysis on optimizing the capillary tube length of a milk chiller using DC compressor operated with HFC-134a and environment-friendly HC-600a refrigerants

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