The problem is designing a solar water heater system to keep a 4500 gal tank of water at 140F during the day.(adsbygoogle = window.adsbygoogle || []).push({});

The tank in question has the following properties:

5000gal Volume

4500gal water

It loses about 1.8 degrees F/hr if not heated.

I first need to figure out amount of energy needed to maintain temps.

I did this using the following math:

4500gal of solution times 8.3 lbs/gal of water = 37350lbs of solution

37350 * 1.8 = 67,230 BTU/h of energy needed.

Seems pretty straight forward so far??? (Math Errors?)

How do I go about finding out how much collector area and efficiency of solar collectors and heat transfer?

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# Heat Loss

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