Journal of Biosystems Engineering
- 제8권2호
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- Pages.49-61
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- 1983
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- 1738-1266(pISSN)
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- 2234-1862(eISSN)
공장폐열(工場廢熱) 회수장치(回收裝置)에 관한 연구(硏究) -U자형(字型) 다관식(多管式) 열교환기(熱交換機)의 성능(性能)에 관하여-
Study on the Exhaust Heat Recovery Equipment in a Factory - On the Performance of a U-shape Multitube Heat Exchanger -
초록
U shape multitube heat exchanger was equipped in the flue to recover the exhaust heat from the boiler system. The fluids of the exhaust heat recovery equipment were the flue gas as the hot fluid, and the water as the cold fluid. The flow geometry of the fluids was cross flow - two pass, the hot fluid being mixed and the cold fluid unmixed. The results of the theoretical and the experimental analysis and the economic evaluation are summarized as follows. 1) The heat exchanger effectiveness and the temperature efficiency of the hot fluid were about 35% when the fuel consumption rate was 140 - 150 L/15min. The temperature efficiency for the cold fluid ranged from 3.0% to 4.5%. The insulation efficiency ranged from 85% to 98%, which was better than the KS air preheater insulation efficiency of 90%. 2) The relationship between the fuel consumption rate, F, and the outlet temperature,
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