solar utilzation lec 13 air systems

solar utilzation lec 13 air systems - Solar Utilization...

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1 Solar Utilization Solar Heating Systems
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2 Solar Utilization Solar Heating Systems
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3 Solar Utilization Solar Heating Systems
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4 Solar Utilization Solar Heating Systems Let’s look at some rules of thumb for air heating systems: a 15ft. long air heater will experience a pressure drop ranging from 0.08 to 0.3 (some as high as 0.5) inches of water. use about 2 cfm/sq. ft of collector area design for a 20 to 40 deg F temperature rise (2cfm/sq.ft. with a 40 deg rise implies collecting 86+btu/h sq.ft. of solar energy) air gaps (distance between cover plate and absorber plate for example) should be designed to provide a velocity of 800fpm for the given flow rate of air through the air collector
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5 Solar Utilization Solar Heating Systems Some rules of thumb for air heating systems cont’d: 50 to 60 lbs of rock per sq. ft. of collector for using rock as a thermal storage system 1 cubic foot of rock stores 20 btu/deg F, ave density = 100lbs/cubic foot for typical solar space heating systems, thermal storage capacity
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This note was uploaded on 09/06/2011 for the course EML 4930 taught by Professor Staff during the Fall '08 term at University of Florida.

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solar utilzation lec 13 air systems - Solar Utilization...

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