Identify the system for a house The following figure illustrates a simplified schematic of a house with the flow of water and electricity. Considering the entire house as the system, identify the boundary of the system, its interaction with its surrounding, and its internal events for each case. Repeat the question for the water heater and then dishwasher as the system. Shower L Water meter Cold Hot -Drain lines -Dishwasher Hot water -heater Electric meter

Identify the system for a house The following figure illustrates a simplified schematic of a house with the flow of water and electricity. Considering the entire house as the system, identify the boundary of the system, its interaction with its surrounding, and its internal events for each case. Repeat the question for the water heater and then dishwasher as the system. Shower L Water meter Cold Hot -Drain lines -Dishwasher Hot water -heater Electric meter

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.1P: Consider a flat plate or a plane wall with a thickness L and a long cylinder of radius r0. Both of...

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Sipho’s mother is making a fire in the stove inside a shack using coal. A fan is used to extract the flue gasfrom the fire via a chimney made of zinc material. The wall thickness of Chimney is L=4mm and the walltemperature of the chimney on the flue gas side is T_si=60˚C. Sipho, playing outside next to the chimneyexperiences an ambient temperature of 20˚C. The surrounding temperature is T_sur=35˚C and the emissivityis ε=0.95. Assume the convection coefficient is 20W/m2K and the chimney is grey material.Under these conditions determine the outer surface (air side) temperature T_so=? of the chimney.
Most modern electrical heating and cooling devices are provided with thermostat. What is the purpose of the thermostat in these devices? Why are these devices equipped with thermostats? Please answer this question in relation to the concept of Thermal Expansion.
A triangular duct is shown in the figure. The base of the duct (surface 1) is maintained at a temperature of 600 K. The left panel (surface 2) is insulated and the right panel (surface 3) is heated and maintained at 1300 K. Find a) the radiosities of all surfaces, b) the required rate of heat transfer to surface 3 to maintain the steady state temperatures as specified, and c) the temperature of the insulated surface. ε DATA: L = 1m W = 2m ε1 = 0.7 ε2 = 0.8 ε3 = 0.4 Assume any if there are missing parameters that is needed to solve the problem.
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Determine the reverberation time of a room whose dimensions L=20m, W=13m, and H=8m with a triangular ceiling of height 2m. The wall is made of marble with absorption coefficient of 0.03, the floor is covered with carpet (13m X 13m) with an absorption coefficient of 0.4, the ceiling is covered with plaster and lathe having 0.70 absorption coefficient. The floor is tiled with an absorption coefficient of 0.4. The sliding window on both sides is open half with a dimension of 2m X 10m and 0.075 absorption coefficient. The door (1.8m X 0.7m) has an absorption coefficient of 0.01. The windows is covered with blinds having 0.5 absorption coefficient half roll upward. A window type air-condition unit (W=470mm, H=340mm, D=600mm) is mounted at one side wall 6.5m from the floor to the base of the ACU with absorption coefficient of 0.35 and a refrigerator with dimensions 2ft X 2ft X 7ft is present in the room with 0.15 absorption coefficient. Use Fitzroy Equation.
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