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Heat Exchanger Effectiveness

1 heat Exchanger Effectiveness ()lmTmTFUATUAQ = =()()()()22112211lnTTTTTTTTTlm = To calculate Q, we need both inlet and outlet temperatures:1T 2T 2T1 TWhat if the outlet temperatures are unknown? calculate the performance of a given heat Exchanger . Faith A. Morrison, Michigan Tech :1. guess outlet temperatures2. calculate Tlm, FT3. calculate Q4. calculate Qfrom energy balance5. compare, adjust, calculate unknown outlet temperatures:This tedious procedure can be simplified by the definition of heat - Exchanger Effectiveness , . Faith A. Morrison, Michigan Tech Exchanger EffectivenessConsider a counter-currentdouble-pipe heat Exchanger :coTciT hoThiThiThoTciTcoTdistance along the Exchanger Faith A.

the amount of heat transferred in this case to the amount of heat transferred in a PERFECTheat exchanger. T hi =T co T ho T ci distance along the exchanger If the heat exchanger were perfect, T hi =T co A= ∞ ( ) hi ci Q A=∞ = mC pcold T −T this temperature difference only depends on inlet temperatures cold side: ©Faith A. Morrison ...

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Heat Exchanger Effectiveness

pages.mtu.edu

Heat Exchanger Effectiveness ... Double-pipe or 1-1 Shell-and-Tube Heat Exchangers ©Faith A. Morrison, Michigan Tech U. 8 Final Exam CM 310 November 16, 1998 ... The heat capacity of the oil is 1.89 kJ/kg K, and the average heat capacity of water over the temperature range of interest is 4.192 kJ/kg K. The overall heat-transfer coefficient of ...

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pages.mtu.edu

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CM3215 Fundamentals of Chemical Engineering …

pages.mtu.edu

Control Valve Lecture, CM3215 Morrison 2/17/2016 1 CM3215 Fundamentals of Chemical Engineering Laboratory Professor Faith Morrison Department of Chemical Engineering

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Pumping System Curves - Michigan Technological …

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Pumping System Head CM3215 FAM 3Mar2014 1 CM3215 Fundamentals of Chemical Engineering Laboratory Professor Faith Morrison Department of Chemical Engineering

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pages.mtu.edu

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