Experimental study on a fan-coil unit running in dry conditions

With the air enthalpy difference method, tests a fan-coil unit running in the conditions where the supply water temperature is 14 to 18 ℃, the temperature difference is 3 ℃, and studies the critical point from dry to wet conditions. The results show that cooling capacity of the unit drops dramatically as the supply water temperature rises, and also drops as the supply air rate decreases. For the fan-coil unit running in dry condition, the most suitable supply water temperature is 17 ℃, and it is better to run at high speed condition for the supply air rate. The cooling capacity of the fan-coil unit running in dry condition drops 2/3 than in the standard condition.