Why the fin spacing in a cold-room fin-and-tube evaporator should be greater than in an air-conditioning evaporator?
In fin-and-tube evaporators, the spacing between fins is one of the most important design parameters and must be selected according to the application. In cold storage rooms, the fin spacing is usually made greater than in air-conditioning evaporators, because the operating conditions are very different. In air conditioning, the coil temperature is generally higher and the surface is less likely to develop heavy frost. However, in cold storage systems, the coil temperature is lower, and the moisture in the air...
