Question: Can you solve it by explaining it step by step in accordance with the mechanical engineering numerical analysis course? The thermal analysis of an apartment
Can you solve it by explaining it step by step in accordance with the mechanical engineering numerical analysis course?
The thermal analysis of an apartment unit will be conducted using numerical methods. A top view of the room with dimensions in cm is provided in Figure As shown in the figure, one of the walls of the room is parabolic. The parabolic wall of the room and the wall at y cm within the range cm x cm are the exterior walls. The wall at x cm within the range cm y cm faces the buildings interior void, and its temperature is assumed to be constant at CThe ceiling of the room marks the start of the roof and is assumed to have a constant temperature of CThe floor of the room contains an underfloor heating system, which consists of several pipes. Hot water flowing through there pipes heats the room. Additionally, the occupants of the room, various electronic devices, and lighting fixtures emit heat. Based on this information, a D thermal analysis of the room will be carried out. Furthermore, there is an electrical outlet on the wall at y cm within the range cm x cmand it has been observed that the outlet is experiencing a problem. The issue is suspected to be caused by overheating of the electrical wires, as heating has been observed in certain sections of the wall. Therefore, the region of maximum wall temperature will be calculated, and the issue will be examined. The dimensions of this wall are schematically presented in Figure
aThe underfloor heating system consists of pipeseach with a diameter of cmOne of these pipes is schematically shown in Figure It is desired fort he flow in these pipes to remain laminar, and the maximum possible heat transfer to the room through the pipes is required. If the water enters the pipes at C and exits at Ccalculate the heat transfer to the room from the pipes by rootfinding methods. water density, kgmspecific heat capacity of water, Cp kJkgKdynamic viscosity of water, kgms
bGiven that the heat generation from people, lighting, and electronic devices in the room is approximately Wmcalculate the total heat generation in watts W
cIt is assumed that the variation of temperature along the yaxis for the wall shown in Figure can be determined using the following formula:
Here, egen is the heat generation per unit volume, with a value of approximately WmL is the thickness of the wall, with a value of cmkw is the thermal conductivity of the wall, with a value of WmKAdditionallyTis the temperature of the walls surface facing the other room, which is Cand Tis the temperature of the walls surface facing the room under investigation, which is CDetermine the region in the wall where the maximum temperature occurs.
dDetermine the boundary conditions for the room where the D thermal analysis will be conducted.
eDivide the room into cells with lengths not exceeding cm along the x and y axes and cm along the z axis. Calculate the temperatures at the interior points using the differential equation below. External air convection coefficient, h WmK; thermal conductivity of the air inside the room, k WmK
Please solve the above questions using only numerical methods, utilizing the attached information and the formula set below. Use four decimal places in your calculations. Additionally, indicate the nodes to which the temperatures belong.
The thermal analysis of an apartment unit will be conducted using numerical methods.
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