A short review on the techniques of waste heat recovery from domestic applications

The energy crisis we are facing today has several aspects. Indeed, it not only concerns the fuel cost and reserve but also the level of pollution. That is why the last three decades had shown a tremendous effort to come up with new adequate solutions allowing to overcome the negative impact of this crisis. The anatomy of the overall situation shows that most of the solutions fall within the frame of renewable resources. That said, another approach is attracting increasing interests that is heat recovery. From energy strategy stand point, recovering waste heat could be considered as a complementary solution with renewable systems. In this frame, the present paper aims at highlighting the concept of heat recovery applied to domestic systems. The paper is a short review that essentially investigates four main applications, heat recovery from exhaust gas of chimneys, heat recovery from cook stove, heat recovery from electric generators and heat recovery from drain water.