(1) Lub sijhawm nyob ntawm kev daws nyob rau hauv cov evaporator yog luv heev, yog li nws yog qhov tshwj xeeb tshaj yog tsim rau cov xau ntawm cov khoom ua kom muaj cua sov;
(2) Qhov kev nkag siab ntawm tag nrho cov kev daws teeb meem tsis yog ib txwm nyob ze rau qhov kev ua tiav tiav zoo li hom circulating. Yog li, qhov kub zoo sib txawv ntawm cov evaporator no muaj ntau. Nws lub ntsiab tsis zoo yog tias nws rhiab heev rau qhov hloov ntawm cov khoom noj khoom haus, thiab nws tsis yooj yim rau kev ua ib txheej zaj duab xis thaum tsim lossis kev ua haujlwm tsis raug. Nyob rau lub sijhawm no, convective heat transfer coefficient yuav ua rau poob qis.
