Dai shell hte tube heat exchanger hpe madung hku nna shell, tube bundle, tube sheet hte baw ni hte hpawng de da ai. Dai ni hta, hka htung langai (law malawng katsi ai ntsin) gaw, hka htung maga de lwi pru wa nna, kaga hka (law malawng gaw, grau katsi ai ntsin) gaw, shell maga de lwi nga ai. Dai lahkawng a lapran na nbung katsi ai lam a majaw, katsi ai hpe tsaw ai- n-gun rawng ai ntsin kaw nna npu n-gun n-gun n-gun n-gun de htawt sit ya ai majaw, nbung galai shai ai lam hpe chye na hkra galaw ai.
Grau nna, hka lum ai hka gaw shell maga de shang wa ai shaloi, shi a katsi ai gaw, hka htung maga na katsi ai ntsin de, tube bunghku hku nna htawt sit mat wa ai. Ndai heat transfer ladat gaw akyu rawng ai sha n-ga, hka a n-gun hpe mung atsawm sha hkang lu ai. Dai hta n-ga, shell hte tube heat exchanger hpe mung, n bung ai heat exchange ra ai lam ni hpe hkan sa na matu, teng sha ra kadawn ai lam ni hte maren, langai sha rai nga ai-pass langai hku nna mung galaw mai ai.