The Passive Solar House by James Kachadorian

The Passive Solar House by James Kachadorian

Author:James Kachadorian
Language: eng
Format: epub
Publisher: Chelsea Green Publishing


0.215 Btus/pound • °F × 140 pounds/ft3 = 30.1 Btus/ft3 • °F

The SSTC equals

754 ft3 of concrete × 30 Btus/ft3 • °F

= 22,620 Btus/degree of change

The 10:00 PM to 7:00 AM heat loss will be:

380 Btus/hr • °F × 54° × 9 hours = 184,680 Btus

Since there is a positive temperature difference between the Solar Slab and the living space, the Solar Slab will supply the necessary overnight heat. Dividing the 10:00 PM to 7:00 AM heat loss by the SSTC, we find how many degrees the Solar Slab lost overnight:



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