The comparison of heat transfer performance with three different fin spacing, three different Numbers of tube rows and three different Numbers of tubes under three constraints is carried out.
然后通过三种限制条件对不同翅片间距、不同管排数和不同管数下的换热板芯的传热性能进行了比较。
2
By using new type tube arrangement, rationally adjusting support spacingof cooling tubes, and replacing cooling tubes, the old condenser was retrofitted in overhaul period.