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15-05-2007, 06:01 PM #7
Re: Low head pressure Versus Heat reclaim.
Roger that. Now take a 365 days/year, 24 hours/day, 30 ambient temperature sample/hour datasheet.
Evaluate a thermal exchange coefficient, as an average of all the walls and roof of the supermarket. You will come up with something like 0.1 W m^2 / K.
Compare this against desired room temperature, ambient temperature and supermarket surface in the datasheet and calculate the actual instant heat need. Detract the heat load of lightings, display condensers and "cow stable" effect of breathing people.
That's it.
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