Consider a single-family, detached, single-story house located in suburban long island. the location has a design outdoor temperature of 13°f and the indoor temperature is typically maintained at 70°f during the heating season. the house is built on a slab-on-grade foundation and has no garage. the house has the following characteristics:

len width wall height perimeter floor area gross wall area net wall area window area door area (openings roof area gross volume (living area construction qualit 56 ft 32 ft 8 ft 176 ft 1792 1408 1114 252 42 2060 14,366 ft tight general foundationslab on grade with 8-in. foundation walls with and vertical board insulation on outside of foundation walls r-value of insulation walls windows doors roof/ceiling (based on ceiling area 5.4 (hr ft f)ybtu 0.084 btu/(hr ftf 0.420 btu/( hr fff 0.350 btu/( hr frof 0.030 btu/( hr ftzof u-values

using the information presented above, perform the following calculations to determine the design heating load for the house.

(a) what is the design heat loss due to transmission heat transfer through the combined above-grade, building envelope (walls, windows, door, and ceiling)?

(b) what is the design heat loss due to heat transfer through the slab-on-grade floor?

(c) the infiltration leakage area has been determined to be 91.6 in^2 (590 cm^2). if the design winter wind velocity is 15 mi/h (6.7 m/s), what is the volumetric flow rate of infiltration air?