Experimental study on the water inlet and outlet position of a solar collector reservoir for maximum efficiency

An experimental study is conducted on the heat transfer in the reservoir of a solar water-heater flat-plate solar collector to obtain its temperature distribution. A total of 29 temperature sensors are placed inside the reservoir, and 2 sensors in the water inlet and outlet passages. The effect of the inlet and outlet positions on the temperature distribution inside the reservoir is studied to obtain the best location for the maximum temperature range. When the inlet position is II and the outlet position is B (Fig. 3(c)), the reservoir exhibits the best performance because of the high temperature range and areas inside it.

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