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Forum: Solar Heating

06-08-16, 09:38 AM

Replies: 7

Calculating BTUs from hot air

Views: 7,202

Posted By JRMichler

CarbonKevin raises a valid point, so I pulled out...

CarbonKevin raises a valid point, so I pulled out an ASHRAE #1 pschrometric chart and did a pair of example calculations.

1) 40 deg F in, 60 deg F out, 0 RH, 100 CFM in. From the chart, 12.6 ft^3...

Forum: Solar Heating

06-07-16, 08:29 PM

Replies: 7

Calculating BTUs from hot air

Views: 7,202

Posted By JRMichler

I use 0.018 BTU/ft^3/deg F, the same as bmxeroh. ...

I use 0.018 BTU/ft^3/deg F, the same as bmxeroh. It's almost certainly more accurate than typical temperature and airflow measurements. A one degree error on inlet and outlet temperatures could...

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