Shell leh tube heat exchanger hi shell, tube bundle, tube sheet leh lu atanga siam a ni ber. Chumi zingah chuan tui pakhat (a tlangpuiin tui lum zawk) chu tube lam hawiin a luang a, chu tui dang (a tlangpuiin tui lum zawk) chu shell lam hawiin a luang a. An pahnih inkar temperature danglamna avang hian heat chu high-temperature fluid atanga low-temperature fluid ah a transfer a, chu chuan heat exchange a hrechhuak a ni.
A bik takin, hot fluid chu shell lam a luh chuan a lumna chu tube wall kaltlangin tube lam a cold fluid ah a transfer thin. He heat transfer dan hi a tha mai bakah, a tui temperature pawh a control thei bawk. Chu bakah, shell leh tube heat exchanger pawh hi heat exchange mamawh hrang hrang phuhrukna atana mamawh tak tak ang zelin -pass emaw multi-pass structure pakhat anga design theih a ni bawk.