The ventilation system consists of a supply and exhaust air unit with a counterflow heat exchanger which provides 85% heat recovery.
通风通风系统包括一个送风单元，一个排风单元，与一个可回收85%热能的逆流式换热器。
In the experiment, a secondary water recovery system is set to reclaim waste heat from engine jacket coolant and exhaust, which is a very important part of GEHP.
通过设置热回收水系统，对发动机的缸套冷却水热量和排气热量进行了回收，这两部分热量是系统热泵运行的重要组成部分。
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