Open AccessPerformance Study of a DC Refrigerator Powered by Different Solar PV Modular Sets: paper II.
Author(s) -
M. Hammad
Publication year - 2018
Publication title -
journal of dynamics of machines
Language(s) - English
Resource type - Journals
ISSN - 2690-0963
DOI - 10.31829/2690-0963/dom2018-1(1)-101
Subject(s) - refrigerator car , battery (electricity) , modular design , electrical engineering , power (physics) , automotive engineering , generator (circuit theory) , photovoltaic system , electricity , computer science , environmental science , engineering , physics , mechanical engineering , operating system , thermodynamics
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.