Consider a heat exchanger with 1 shell and 8 pipe transitions used in industry. This heat exchanger is used to heat glycerine with hot water entering a thin-walled pipe with a diameter of 1.30 cm. Hot water enters the pipes at 86 oC and leaves at 35 oC. Glycerin enters the body at 20 oC and leaves at 38 oC. The total length of the pipes in the heat exchanger is 175 m. The convection heat transfer coefficient on the glycerine side is 20.5 W/m2.oC and the convection heat transfer coefficient on the water side is 272.5 W/m2.oC. It has been determined that there is contamination on the outer surface of the pipes in the heat exchanger with a contamination factor of 0.00042 m2.oC/W. According to this; Find the heat transfer rate in the heat exchanger and the flow rates of the fluids used.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Consider a heat exchanger with 1 shell and 8 pipe transitions used in industry. This heat exchanger is used to heat glycerine with hot water entering a thin-walled pipe with a diameter of 1.30 cm. Hot water enters the pipes at 86 oC and leaves at 35 oC. Glycerin enters the body at 20 oC and leaves at 38 oC. The total length of the pipes in the heat exchanger is 175 m. The convection heat transfer coefficient on the glycerine side is 20.5 W/m2.oC and the convection heat transfer coefficient on the water side is 272.5 W/m2.oC. It has been determined that there is contamination on the outer surface of the pipes in the heat exchanger with a contamination factor of 0.00042 m2.oC/W. According to this; Find the heat transfer rate in the heat exchanger and the flow rates of the fluids used.
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