气流量相对于介质流量波动±0.5%时,冷却器效能先降低后升高,最低点效能不低于0.77,仍具有较好的换热性能。
When the gas flow rate fluctuates by ±0.5% relative to the medium flow rate, the cooler efficiency decreases first and then increases, and the lowest point efficiency is not less than 0.77, which still has good heat transfer performance.