关于PRO II 软件中LNG换热器的 Heat leak? 我知道。但正负号怎么定。那个取值范围是-0.5~0.5,一般低温流程是从环境吸热,不知道是正还是负 知道了还问!!!! a positive value represents heat leaked into the hot-side cells from the surroundings. conversely, a negative value represents heat leaked out of the hot-side cells to the external environment. 查看更多