HEAT AND MASS TRANSFER CALCULATION OF THE INTERCOOLER WITH SPRAYING WATER FOR AIR COMPRESSOR

摘要

The way of heat transfer with exchanger coil between cooling water and discharge gas is now in common use in the intercooler of air compressors. But the intercooler with spraying water is more effective than that for heat transfer because the discharge gas is in direct contact with cooling water. This paper analyses the process in the intercooler with spraying water and deduces the calculation formulas of main designing parameters depending on heat and mass transfer, two-phase flow and energy equations. In the formulas, each parameter shows evidently its effect to the efficiency of heat transfer.