. Electrically heated automobile rear window defoggers utilize a thin transparent film-type heating element attached to the inner surface of the window. As shown below, the window glass is 4 mm thick and the inner surface of the window is maintained at 15 °C (Tinner). The total surface area of the window is 1 m². Both sides of the window experience convective heat transfer with the properties shown below. The thermal conductivity of the glass is 1.4 W/m-K. Assume that the thickness of the heating film is negligible. a) Construct the thermal circuit representing the steady state heat transfer for the system. Label all nodes, resistances and relevant terms. b) Determine the (electrical) power (in Watts) to maintain the conditions given. 4 mm A=1m² Tinner 11 Too2 = -10 °C h = 65 W/m²-K Outer Window Glass Heater T∞01 = 25 °C h = 10 W/m²-K Inner

A-For a general office room, the exposed wall (with a window, outside winter type) construction is 19 mm plaster outside (cement and sand) and 20 cm brick (building). The area of the window is 50% of the exposed wall. Calculate the heating load required for the office caused by the wall and window. Take Tout-5 °C and Tin-25 °C, exposed wall height=3 m and width=5 m, Inside and outside still air thermal resistance fi= 9.37 W/m²°C and fo= 34.1 W/m2 °C respectively. (6 marks)

Please solve asap, Will provide helpful ratings for complete solution. Thank u A double-glazed window is constructed such that it has 5 mm thick glass as the inside layer, 4 mm layer of gas, and finally 5 mm thick glass as the outer layer. Which have thermal conductivies of 0.7, 2.120, and 5.9 W m-1 K-1, respectively. Calculate the heat loss per unit area, Wm-2 through the glass if the inside temperature of the glass is 11.09 °C and the outside temperature is 6.47 °C Report your answer to 2 decimal places.

Can someone please help me with creating an excel spreadsheet to calculate heat transfer phenomenon from a cylindrical fuel rod to the coolant? The excel sheet needs to be able to calculate these 3 things: Heat generated in a fuel rod at a distance ‘r’ from the center; Total Heat generated in the Reactor; the maximum temperature in the fuel and the cladding surface temperature, for a fuel rod at a distance ‘r’ from the center. The fuel used in this will be UO2 and there is a thin layer of helium that will separate the fuel from the cladding material. The user input parameters will be: the thermal neutron flux at the core, thermal conductivity of fuel, thermal conductivity of helium, thermal conductivity of the cladding, thickness of the helium layer, thickness of the cladding, diameter of the fuel pellet, fuel rod location (r), Cylindrical Reactor Size, and the fuel enrichment. For the fluid the user input will be coolant temperature and the heat transfer coefficient.

The fan circulates the warm air on the inside of the windshield to stop condensation of water vapor and allow for maximum visibility during wintertime (see images). You have been provided with some info. and are asked to pick from the bottom table, the right model number(s) that will satisfy the requirement.Your car is equipped with a fan blower setting that allow you to choose between speeds 0, 1, 2 and 3. Variation of the convection heat transfer coefficient is dependent upon multiple factors, including the size and theblower configuration.following image shows the parameters

1. A composite furnace wall is made up of a 12-in. lining of magnesite refractory brick, a 5-in.thickness of 85% magnesia, and a steel casing 0.10-in. thick. Flue gas temperature is 2200 F andthe boiler room is at 80 F. Gas side film coefficient is 15 Btu/hr-sq.ft-F and air side is 4.0.Determine:a. The thermal current Q/Ab. Interface temperaturesc. Effect on thermal current and inside refractory wall temperature if the magnesia insulation weredoubled.

Please fats. The answer in the box is incorrect

c) A steel pipe of 100 mm bore, and 10 mm bore thickness, carrying dry saturated steam at 28 bars, is insulated with a 40 mm layer of moulded insulation. This insulation in turn is insulated with a 60 mm layer of felt. The atmospheric temperature is 15 °C. Calculate: (i) the rate of heat loss by the steam per metre pipe length. (ii) the temperature of the outside Dimensions in mm surface.zzzzzzz h₂-15 W/m²K Steel k₁=50 W/mK AVALEHT Ø100 1₂ " Steam 28 bar h-550 W/m²K, Inner heat transfer coefficient = 550 W/m² K Outer heat transfer coefficient = 15 W/m² K Thermal conductivity of steel = 50 W/m K Thermal conductivity of felt = 0.07 W/m K Moulded insulation Felt Moulded insulation K₂=0.09 W/mK Thermal conductivity of moulded insulation = 0.09 W/m 40 10. A 60 15°C Felt K₁=0.07 W/mK zzzzzzzz

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We are using lumped capacitance method for the cooling of a hot cylindrical tube in winter. One end of the tube is held by a hot piece of metal which is at 100 C. What will be the temperature at the other end according to our calculation? O not sufficient information O less than 100 C O equal to 100c more than 100 C