Heat Exchangers tih awmzia leh a chi hrang hranga then dan .

Heat transfer tha tak neih theih nan heat exchanger chu heat transfer tha tak neih theihna turin solid walls hmanga media inthen darh thei device a ni. Heng media te hi solid walls hmangin an inthen thei a, chu chu an inhmeh loh nan, a nih loh leh direct contact-ah an awm thei bawk. Heat exchanger hi field tam takah hman a ni nasa hle a, space heating, refrigeration, air conditioning, power plant, chemical plant, etc. Heat exchanger chi hrang hrang hi plate leh shell leh tube chi hrang hrang a ni. Chu bakah, thermal storage heat exchanger, adiabatic wheel heat exchanger, plate{4}}fin heat exchanger, fluid heat exchanger, waste heat recovery device, leh dynamic scraped surface heat exchanger te a awm bawk. Heat exchangers classification hi hmanruaa fluid pahnih te relative flow direction atanga siam a ni tlangpui. Category pathumte chu parallel flow, counterflow, leh crossflow te an ni.