Calculate the total radiation of a vertical surface at 2:30 pm in Bandar Baru Bangi [please use:(BBB) Longitude = 101° 48’ E, Latitude =2 ° 56’ N ) facing N60 °W on 21st Dec. In front of the surface is the swimming pool. Assume : reflected swimming pool factor, r=0.30 and Gth= 500 Btu/hr.ft2

Q: The peak wavelength of radiation emitted by a black body at a temperature of 2000 K is 1.45 pm. If…

A: Given, Temperature T1 = 2000 K Peak wavelength of radiation emitted by body at T1 = λ1 = 1.45 μm…

Q: 3: Find the day length and the total radiation. HQ, incident on a

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Q: The amount of energy emitted by a unit area of a black body at 300°C is approximately, a. 459 W/m?…

A: Temperature (T)  = 300°C = 573 K

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: Two long parallel plates with diffuse black surfaces are facing each other as shown in the…

A: Given: T1=427 C=700 KT2=327 C=600 K To find: Net radiation heat flux

Q: Two infinite black plates of 800deg C and 340 deg C exchange heat through radiation. Calculate the…

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Q: You are using a heated cylindrical tube blackbody as a chamber for an experiment.  The tube is 2m…

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Q: Liquefied natural gas (LNG) is transported around the globe using ships similar to that shown in…

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Q: Ratio of the temperature?

A: Given; Total emmisive power of a surface is; ∈1=500 W/m2At a given temperature=T1∈1=1200 W/m2At a…

Q: = 20 mm. The A tube carries hot water across a factory in a tube with outer diameter Do tube surface…

A: Given data:Tube outer diameter (Do) = 20 mm= 0.02 mTube temperature (T1) = 450°C = 723 K…

Q: A half cylindrical shell with a radius of 75 cm is held at 200°C and has an emissivity of 0.4. A…

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Q: Find the intensity of the total radiation falling on a body in which the diffuse radiation is equal…

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Q: Two square plates of equal side (10) cm are 15 cm apart. Find view factor F12.

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Q: Liquefied natural gas (LNG) is transported around the globe using ships similar to that shown in…

A: Radius (r) = 20 m polyurethane foam thickness (t) = 30 cm = 0.3 m  Tsi = -162 ºC = -162 +273 = 111 K…

Q: Two concentric spheres of diameter D₁ = 0.9 m and D₂ = 1.2 m are separated by an air space and have…

A: Given that: For two concentric spheres, D1 = 0.9 m, D2 = 1.2 m, T1 = 400 K and T2 = 300 K (a)…

Q: Calculate the amount of radiation emitted for a unit surface (1 m2 ) forthe following situations:…

A: Write the expression to calculate the amount of radiation emitted by a surface. Q=σεAT4 Here, the…

Q: stimate the increase in heat transferred by radiation of a black body at 1500 °F relative to one at…

A: Heat transfer by a black body due to radiation,Q=σAT4Where,σ=steffan's boltzman…

Q: Given the following information for two windows in a room, one placed on the south side, and the…

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Q: the emissive

A: Given; Emissive power of a black body is P, If its absolute temperature is doubled. Emissive power…

Q: The wavelength at which the Sun emits its most intense light is about 550nm. Assuming the Sun…

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Q: 1. Consider an opaque horizontal plate that is well insulated on its backside. The irradiation on…

A: Given Irradiation G = 3000 wm2Reflected Gr = 500 wm2emmissivity = 0.5plate temperature Tp = 150…

Q: A solar pond, 1.5 m deep, is built in Pondicherry (11°56' N). The following values of global and…

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Q: Q1(b): Taking X as the lowest view point, sketch the isometric view of the part.

A: We must combine the three views to get the 3 dimensional view of the object. Dotted lines indicate…

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: The emissive power of a blackbody is P. If its absolute temperature is doubled, the emissive power…

A: Solution: Given dataEmissive power of black body (Eb)1 = P T1=TT2=2T

Q: 2. Find the view factors for this configuration. a. Fis b. Fia c. F12 0.25m -0.1m

A: (a) Consider the circle and write the expression for view factors. R51+R52+R53+R54+R55=1

Q: 55. At what net rate does heat radiate from a 275-m² black roof on a night when the roof's…

A: As per given question  T1=30° c T2=15°c A=0.900 m2 we have to find heat transfer by radiation

Q: Molten metal at 2000 C is poured using crucible. The liquid metal jet has a diameter of 3 mm with an…

A: To find: which step is wrong in the given steps

Q: An enclosure has an inside area of 50 m2, and its inside surface is black. The enclosure is…

A: Given Data: As=50 m2Ao=0.01 m2qrad=52 W   To Find: A. Determine 1) the temperature of the enclosure…

Q: A surface gains 500 W/m2 heat at an equilibrium temperature of 30 °C and it is subjected to a…

A: Given: Heat flux (q)=500W/m2Equilibrium surface temperature (Ts)=30°C or (273+30=303K)Temperature of…

Q: Two plane disks each 125 cm in diameter are parallel and directly opposite each other. They are…

A: given; diameter of disc (d)=125cm=1.25mseperate distance (l)=50cm=0.5mtemperature of disc A…

Q: A monocrystalline silicon solar panel (active area: 1 m2) has an energy conversion efficiency of…

A: According to the question we have:- Active area or area of collector plate A=1 m2 maximum energy…

Q: at 800°C and 300°C exchange heat by radiation. Calculat

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Q: give 2 examples of radiation heat transfer. explain briefly

A: Introduction Radiant heat is prevalent in our daily life in some way or another. Radiant heat refers…

Q: A flat plate collector, facing due south, having two glass covers is located at (34.05° N, 74.38°…

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Q: give sample problem with solution regarding interchange of radiations between two parelle vertical…

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Q: Two parallel square plates [1.22 m by 1.22 m], 0.81 m apart, have emissivities of 0.5 (560 ⁰C) and…

A: Calculated heat exchange between two plates.

Q: Two bodies radiate heat to each other. One body is at 30 C and the other at 300 C. The emissivity is…

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Q: What is the solar radiation on a horizontal surface in the absence of the atmosphere at latitude 36°…

A: Given; Date = March 15 latitude = 36°N

Q: A surface gains 500 W/m2 heat at an equilibrium temperature of 30 °C and it is subjected to a…

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Q: Calculate the "steady state” numerical values of the earth’s ground temperature Ts and the…

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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.