Analysis And Optimization Of Heat Recovery System For Process Plant

Azman Hafiz, Hj Abd Majid (2006) Analysis And Optimization Of Heat Recovery System For Process Plant. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Energy recovery has become very important these days due to the decreasing fuel supplies and expensive energy sources. Therefore, the requirement and incentive for heat recovery will be ever more important. One of the ways to overcome these problems is to recover waste heat generated by industries to generate energy. The heat transfer equipment can be applied to recover heat from industrial flue gas and waste water. This project deals with recovering of a waste heat recovery system at an Oil Mill factory in Penang, to recover waste heat from exhaust gas that is currently being let out to the atmosphere at a temperature of 250°C. This waste heat is then used to produce hot water by using waste heat recovery equipment; thus improving the cycle efficiency. The hot water will then be supplied back to boiler for saving energy purpose. In this project, numerical analysis was used to calculate the maximum waste heat recovery from the plant. For this, the Kern Method was used. The results show as that by using a relatively simple heat exchanger design, an increase in 2.81 percent in efficiency was calculated. This can translate to huge saving in energy usage per year. Therefore effort should be taken to recover this waste heat as it will reduce the effect of global warming tremendously, thus making the planet earth a better place to live in.

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