U Values for Heat Exchangers
2009 August 6
Find free “U” values for heat exchanger design in this post.
What is a “U” value? If you’ve taken any classes in heat exchange, you probably are familiar with the simplest heat exchanger design equation:
Q (duty) = U (coefficient) * A (area) * deltaTlm * F
Where deltaTlm and F depend on exchanger geometry and are explained in any heat transfer text.
The trickiest part is the “U” value, where you have to find a co-efficient that fits the type of heat exchange you are performing. Here are some free resources I have found, if you don’t have a book like Perry’s or Rules of Thumb to help you.
Typical Overall Heat Transfer Coefficients
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WE NEED THE VALUE FOR U USING CON.SULPHURIC ACID AND WATER AS MEDIA IN SHELL AND TUBE HEAT EXCHANGER.
Thank you for the information on U values. I have used Couldson & Richardson Vol. 6 Chap 12 Table 1.
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