analysis of heat exchanger by LMTD method

in this prsentation i derived heat exchanger by using LMTD mrthod with counter flow and parallel flow

1. ANALYSIS OF HEAT EXCHANGER BY LMTD METHOD PREPARED BY:- Urvesh Dungarani 140050119506 GUIDED BY:- Chetan K Gohil BITS EDU CAMPUS

2. LOGARITHMIC MEAN TEMPERATURE DIFFERENCE(LMTD) Defination :Logarithmic mean temperature difference is define as that temperature difference which,if constant,would give the same rate of heat transfer as actually occur under variable condition of temperature difference. With help of LMTD ,the value of temperature at any length of heat exchanger or vice versa is easily available.

3. Logarithmic mean temperature difference for “parallel flow”

4. And  

6. Logarithmic Mean Temperature Difference for “Counter Flow”

7. = …………(2)   Equation (2) represents equation for LMTD for counter flow Heat exchanger.

8. THANK YOU