Heat Exchanger Performance

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Heat exchanger - Wikipedia, the free encyclopedia

How many pipes required, requires allot more information than you are suppling.

Media, Product flow rates, Temperature of both, physical and mechanical properties of you product.........all is to difficult to attempt on a blog.

Condenser performance is probably the easiest, if its existing, you divide you lbs of condensate by your lbs of steam. But if you are designing it and want to establish performance, that is more difficult. You first must solve a number of unknowns to determine the 'U' factor, which is the sq/footage of surface area required.

And of course looking at Lyn's reply, the placement and number of baffles plays a very large role.

There is so much involved I wouldn't know where to begin.

I wrote a very basic heat exchanger program 15 years ago for a counter flow and u-tube design in excel, and instead of solving some of the variables through interation, I used a common approximate number because the product most likely would be water. If I knew then what I know know, I would have done it differently.

@ phoenix911

thank you for your interest. my product is auto air condition system, what i want to do is to check my design performance,i'm looking for peformance equations to program it for any condenser or heater, Product flow rates, Temperature of both are variables for each product,

@ Lyn :tank you for interest.of course this article is useful ,but it is so general and can't meet my needs...at all thank you for your interest

Dear Mr. ABDULLAH SAMI,

Pl. be specific and give data on what you are looking for. Several details are required for the heating medium, heated medium, flow rate, tube material etc.

Number of Tubes required depend upon the OVER-ALL HEAT TRANSFER COEFFICIENT, Pressure Drop Permissible etc.

RAJESWARI