EXPERIMENTS ON THE DEHUMIDIFICATION PERFORMANCE OF A FINNED TUBE HEAT-EXCHANGER

The performance of fan coil heat exchangers with smooth continuous alu minum fins on three rows of copper tubes was studied for heat and mass transfer, and for dehumidifier performance. Such fan coil units are c ommon in industrial situations. Experiments were conducted to measure the heat and mass transfer performance for various air velocities and water flow rates. The results are presented below. Published correlati ons were used for an analysis of heat and mass transfer. Discrepancies between the calculated and the experimental results resulted because the calculated results were made from published correlations most comm only with more than six rows. The experimental results also showed an inadequacy of analysis in predicting the dehumidification capacity of finned tube heat exchangers. A revised correlation equation for heat e xchangers of this type is proposed.