Experiment on heat transfer performances of LiBr solution heat exchangers under smaller flow rate and larger temperature difference

Sets up the test bed and carries out experiments in the heat transfer performance of multi tube-in-tube and brazed plate heat exchangers under the condition of smaller flow rate and larger temperature difference, and measures the heat recovered by LiBr solution from saturated refrigerant water. By fitting  the experiment data, obtains a characteristic equation of LiBr brazed plate heat exchangers, and compares it with those from literatures to verify its reliability. As a result, the equation can be applied to guiding the theoretic analysis of thermal and hydraulic property of LiBr brazed plate heat exchangers, providing references for optimal design of the heat exchanger.