cee698-03_class04 - CEE 698-03 Sustainable Building Design...

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Class 04: Architectural Concepts Mike Walters, PE, LEED AP [email protected] Affiliated Engineers, Inc. Department of Civil and Environmental Engineering College of Engineering University of Wisconsin-Madison
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Quick Agenda SHGF Revisited Thermal Resistance Thermal Capacity
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Envelope Solar Q = (Area) (SHGF) (SC) Q = (3.5’x24’) (283) (1.0) Q = 23,772 btu/hr (gain) Q = 6,300 btu/hr SHGF = Solar Heat Gain Factor SC = Shading Coefficient (1.0 = Clear) For 4pm in Madison, WI at South Facing Glass SHGF = 75 Source: ASHRAE Fundamentals 1997
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Thermal Resistance Resistance = R-value Resistance to thermal transfer Reciprocal of Thermal conductivity (U)
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Representative Thermal Resistances (R) ft 2 hr°F m 2 hr°C BTU W 1" (25mm) aluminum 0.0007 0.00012
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This note was uploaded on 10/07/2008 for the course CIVIL 698 taught by Professor Mikewalters during the Spring '08 term at University of Wisconsin.

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cee698-03_class04 - CEE 698-03 Sustainable Building Design...

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