Engineering, 12.07.2019 23:30, AdoNice

An 350 m2 section of roof is made up polyurethane foam insulation, and a 5 cm thick layer of wood. the combined heat transfer coefficients for the inside and outside of the roof are 15 w/m2* k and 80 w/m %, respectively. if the room on the interior of the roof is to be maintained at 20 c on a day that is 35 c, how much heat must be removed to maintain the temperature in the room?

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, kayabwaller4589

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Answers: 3

continue

Engineering, 04.07.2019 18:10, tjeffers90028

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Answers: 1

continue

Engineering, 04.07.2019 18:10, lerasteidl

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Answers: 3

continue

Engineering, 04.07.2019 18:10, QueenLife4869

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Answers: 3

continue

Do you know the correct answer?

An 350 m2 section of roof is made up polyurethane foam insulation, and a 5 cm thick layer of wood. t...