Engineering, 12.06.2021 01:10 abdullahs4639

A wall is composed of two materials. Material A has a thickness of 3.5+0.1X cm and a thermal conductivity of 0.1 Wm-1°C -1 While material B has a thickness of 8.77 cm and a conductivity of 1 Wm-1°C -1 . If the temperature difference inside to outside is 25 °C, and the wall has an area of 10 m2 . Find the U Value and R Value of compound wall. Evaluate the energy loss per second through the wall in Watts

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 19:20, carterdaw

Aseries piping system conveys methyl alcohol. the system consists of 70 m of 1- nominal pipe follow by 50 m of 2-nominal pipe, both schedule 40 commercial steel. the 1-nominal pipe contains 3 90° elbows (regular) anda fully open gate valve, all threaded. the pressure drop through the system is 150 kpa. determine the volume flow rate through the system that is horizontally laid.

Answers: 1

continue

Engineering, 04.07.2019 19:20, sashajayne8260

Determine the stoichiometric and actual air-fuel ratios and the mole flue gas composition for combustion with 15% excess air for raw indiana, pennsylvania raw coal.

Answers: 3

continue

Engineering, 06.07.2019 03:10, Bloom247

List and describe the attached tools in boxford cnc milling machine? and how many tools were used in your projects explain them?

Answers: 3

continue

Engineering, 06.07.2019 03:10, DeathFightervx

Air is flows through an adiabatic nozzle with an inlet pressure of 400 psia at a temperature of 300°f and a velocity of 20 ft/s. the outlet pressure is 40 psia and the velocity is 800 ftl/s. determine the outlet temperature of the air using: a) property tables b) specific heat (using the specific heat value for air at 300°f)

Answers: 3

continue

You know the right answer?

A wall is composed of two materials. Material A has a thickness of 3.5+0.1X cm and a thermal conduct...