Experimental research on the impact of Yangtze River water quality on water-source heat pump heat exchanger tube

Establishes a test facility for river-water-source heat pump district heating and cooling engineering in the Nanjing Gulou International Service Outsourcing Industrial Park, simulates the operation according to enhanced and bare copper tubes and tests the heat transfer. Analyses the test data, and the results show that the average fouling resistance of bare copper tube is 57% of high efficiency tube, but the performance of high efficiency tube considering fouling factor is still 30% to 50% higher than the bare tube at the end of the experimental.