Experimental investigation and performance comparison of two types of microchannel and Fin-tube condensers with R407c refrigerant in compression refrigeration cycle

The present research deals with the experimental investigation and comparison of microchannel and vane-tube condenser in a refrigeration cycle. This research investigate the effect of the type of condenser on the efficiency of the duct-split with a cooling capacity of 2.5 tons of refrigeration using experimental tests. For this purpose, two microchannel and fin-tube condensers have been used in a refrigeration cycle that has R407c refrigerant. Except for the condenser, the rest of the components of the refrigeration cycle, such as the fan, compressor, expansion valve, and evaporator are the same in both refrigeration cycles. The effect of the type of condenser on the performance coefficient of the refrigeration cycle has been evaluated at three different speeds of the condenser fan. Also, compressor power, evaporator cooling power, condenser thermal power, and temperature-entropy diagram (T-s) were extracted. Six different experiments have been conducted, and each experiment has been repeated three times to ensure the results. The results show that the use of the microchannel condenser in the same conditions and with 700 g less refrigerant charge in the entire refrigeration cycle, increases the performance factor by about 4% compared to the system that has fin-tube condenser.