waste heat recovery unit
英[weist hi:t riˈkʌvəri ˈju:nit]美[west hit rɪˈkʌvəri ˈjunɪt]
A waste heat recovery unit (WHRU) is an energy recovery heat exchanger that recovers heat from hot streams with potential high energy content, such as hot flue gases from a diesel generator or steam from cooling towers or even waste water from different cooling processes such as in steel cooling.