换热器(2)1—3交流换热器对于交流换热器,不能够象逆流式和顺流式那样,将 T_b、T_c、△T_m 等用一个式子表示出来。这种情况实际上是把传热面分割成网络,对每个网络进行热平衡计算,就能求出沿着传热面的温度变化情况。在图4上给出求解交叉式平板换热器的两种流体及隔板的温度分布的网络分割图。现在着眼于△x·△y的微元传热面积(网络),研究通过这个网络的热交换。设热流体及冷流体通 Heat Exchanger (2) 1-3 Regenerative Regenerator For regenerators, T_b, T_c, ΔT_m, etc., can not be expressed by an equation like counterflow and forward flow. This situation is actually the heat transfer surface is divided into networks, heat balance calculation for each network, you can find the temperature along the heat transfer surface changes. In Fig. 4, a network diagram of the temperature distribution of two fluids and separators for the cross-plate heat exchanger is given. Now focus on the differential heat transfer area (network) of Δx · Δy and study the heat exchange through this network. Set hot fluid and cold fluid pass