A furnace is of cylindrical shape with a diameter of 1.2 m and a length of 1.2 m. The top surface has an emissivity of 0.70 and is maintained at 500 K. The bottom surface has an emissivity of 0.50 and is maintained at 650 K. The side surface has an emissivity of 0.40. Heat is supplied from the base surface at a net rate of 1400 W. Determine the temperature of the side surface and the net rates of heat transfer between the top and the bottom surfaces, and between the bottom and side surfaces.

Q: emissivity of 0.85. Determine the net rate of radiation heat transfers between the two surfaces, and…

A: 1. Steady operating conditions exist 2. The surfaces are opaque, diffuse, and gray 3. Convection…

Q: EFFECT OF EMISSIVITY ON TEMPERATURE MEASUREMENT. The energy emit- ted from a piece of metal is…

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Q: To control the temperature and drying rate of bread, a humidified baking oven is maintained at 166°C…

A: given data;dry bulb temperature (t)=1660cwet bulb temperature (ts)=600cheat transfer coefficient…

Q: Calculate the ratio of the radiant energy emitted from a surface at 37ºC and an adjacent surface of…

A: Given: The surface temperature, T1 = 37 C The adjacent surface temperature, T2 = 35 C

Q: A furnace is located next to a dense array of cryogenic fluid piping.  The ice-covered piping…

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Q: In a cylinderical furnace of 1.5 m dia and 2 m length the curved surface is maintained at 1400 K,its…

A: Solution is given below.

Q: ed at 1400 K,its emis 7. The two ends are ed at 800 K and 600 ies are 0.65 and 0.55

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Q: Required information Two coaxial cylinders of diameters D₁ = 0.10 m and D2 = 0.50 m and emissivities…

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Q: A thin aluminum sheet with an emissivity of 0.18 on both sides is placed between two very large…

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Q: Consider a black spherical ball, with a diameter of 25 cm, is being suspended in air. Determine the…

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Q: Imagine you have two concentric, coaxial cylindrical tubes with an evacuated annular space, with…

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Q: A certain 1m body at 20 C is display on a top of a building during the night. the body sees nothing…

A: Given data , e= 0.9  Temperature to be maintained is  T= 23°C= 296 K  T1=110 K  t= 20°C

Q: A directionally emitting surface has an emissivity of 0.7 for angles up to 45° from vertical and 0.2…

A: Solution: Emissivity = 0.7 for angles upto 45 degrees Emissivity =0.2 for rest of the angles

Q: Assuming the sun to be a black body emitting radiation with maximum intensity at 1 = 0.48u m,…

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Q: A one-dimensional plane wall is exposed to convective and radiative conditions at x = 0. The ambient…

A: According to the given data Ambient temperature=T∞=15°C Surrounding temperature=Tsur=80°C Surface…

Q: A sphere has a radius of 0.100 m. Its surface can be treated as a grey surface with emissivity 0.20…

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Q: In radiative calculations, what is the view factor of the surface of the outside of a pipe with…

A: View factor The fraction of diffusely distributed radiation that leaves a surface and reaches to…

Q: A circular disk (ignore its thickness) of D = 1 m diameter is placed over a barbecue pit…

A: Step 1:  Step 2:Additional Information:You might need to look up the value of the Stefan-Boltzmann…

Q: A one-dimensional plane wall is exposed to convective and radiative conditions at x = 0. The ambient…

A: To find: The convective and radiative heat flux to the wall. Given: The ambient temperature is…

Q: A circular disk (ignore its thickness) of D = 1 m diameter is placed over a barbecue pit maintained…

A: B) To plot \( q_{\text{net,d}} \) as a function of \( T_{\text{disk}} \) for \( 300 \, \text{K} <…

Q: The sonic screwdriver that Dr Who is wielding detects a radiation source that is indicated to be at…

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Q: This experiment is conducted to determine the emissivity of a certain material. A lone cylindrical…

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Q: A 1.2 m wide and 5.1 m long solar collector is mounted to a roof.  Now the average surface…

A: Given width of solar collector w=1.2 m Length of solar collector l=5.1 m Average surface temperature…

Q: a certain body at 20 C is display on a top of a building during the night. the body sees nothing but…

A: Given data,  T1= 20°C = 293K  T=23°C = 296 K  To=110 K  ε= 0.92  Let the Stefan Boltzmann constant…

Q: Two parallel planes measuring 1.2 x 1.2 m apart by a distance of 4 cm. The emissivities of the…

A: Given: The distance between two parallel plates is, d=4 cm. The area of the plate is, A=1.2 m×1.2…

Q: A hot water heater 150 mm wide, 2 m long and 1 m hight is at a surface temperature of 50°C in the…

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Q: urfaces A and B are concentric cylindrical tubes with diameters of 275 and 300 mm, respectively.…

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Q: Consider a 25-cm-diameter spherical ball at 700 K suspended in air and assume the emissivity of the…

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Q: 12-37 Two concentric spheres of diameters D₁ = 0.3 m and D₂ = 0.8 m are maintained at uniform…

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Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.