Consider a building built on a concrete slab, with no basement and an insulated

Question

Consider a building built on a concrete slab, with no basement and an insulated perimeter and insulated concrete wall. There is a total of 146 feet of perimeter with an equivalent R-value of 2.22 (ft-h-F/BTU). The inside temperature is 73F and the outside ambient temperature is 13F.

What is the heat flow through the perimeter foundation in BTU/hr?

Note that a positive value is heat flow from inside to outside and a negative value is heat flow from outside to inside.

Express your answer to the nearest 10 BTU/h.

Explanation / Answer

Q = ( L x (T - t)) / (R)

==> Here L = 146 ft

T = 73 F and t = 13F and R = 2.22

==> Q = ( 146 x (73 - 13)) / (2.22)

==> Q = 3945.94 BTU/hr

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.