Find the annual auxiliary heating energy needed by design

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Reference no: EM131231238

Compare the annual SSF for 150 ft² of the following passive systems for the house in Problem 9.5:

(a) direct gain (DGA3),

(b) vented. Trombe wall (TWD4),

(d) waterwall (WWB4), and

(e) sunspace (SSB4).

Problem 9.5

A 2000 ft² house in Boston is being designed with NLC-12,000 Btu/F-day and 150 ft² of direct gain. The direct gain system includes double glazing, nighttime insulation, and 30 Btu/ft² F thermal storage capacity. Using the LCR method, determine

(a) the annual auxiliary heating energy needed by this design and

(b) the storage mass and dimensions required.

Reference no: EM131231238

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