Heat Transfer Question. Please explain step by step for the better understanding, thanks.
Q: Steel balls (diamęter = 21 mm, p= 7833 kg/m , k = 54 W/m-°C, Cp = 0.465 kJ/kg-°C, and a = 1.474x10 m…
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Q: Why do the thermal discontinuity plane and neutral plane rarely coincide when we perform compartment…
A: The neutral plane is very helpful in letting us know about the location of fire, its intensity,…
Q: Explain the Fouling phenomenon. What is the effect of fouling on heat transfer rate?
A: It is required to determine fouling and it's effect on heat transfer
Q: What is impinging jet. Explain with figure. Why we use it in heat transfer? Explain in detail with…
A: Impinging jets Impinging jets are commonly used in applications that require significant local…
Q: Heat transfer mechanism in building can be divided into three categories which are by Conduction,…
A: Conduction - It is a mode of heat transfer where energy is transferred from more energetic particles…
Q: 7. A pan made of stainless steel contains water at atmospheric pressure. The pan diameter is 25 cm…
A: Given Data The diameter of pan is:d=25 cm=0.25 m The surface temperature is:Ts=116°C The saturated…
Q: Q3/Condensing steam at 1 atm is used to maintain a vertical plate 20 cm high and 3.0 m wide at a…
A: Given DataT∞=100°CTw=20°CH=20cm=0.2mW=3m
Q: Brass cube "p 8530 kg/m, c = 380 J/kg.°C, k 110 W/m.°C, a = 33.9E-6 W/m.°C", side length=9 mm, are…
A: Option B is correct.
Q: lock in ‘meter’ capable of being charged to 2.4 x 106 Volt potential before sparking into the air,…
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Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1637 kJ is…
A:
Q: In a quiescent hot summer day, you are walking under the sunlight. Suddenly, you remember heat…
A: All of the energy from the Sun that comes to the Earth arrives as sun-oriented radiation, a…
Q: Question: An ordinary egg can be approximated as a 5.5-cm-diameter sphere. The egg is initially at a…
A: given data diameter (D) = 5.5 cm C initial temperature (Ti) = 8oC Boiling water temperature (Tb) =…
Q: Q) Calculate the total amount of rejected heat that will be required to convert 0.5 Kg of steam at…
A:
Q: An electric room heater (radiator) elemnent is 25 cm long and 4 cm in diameter. The element…
A: Given data: Q˙=1500 WL=25 cmd=4 cmT1=15°C Need to determine the surface temperature of the element.
Q: Hii. Can u pls help me know what is the formula for the final and initial temperature…
A: the final and initial temperature -
Q: An 1.000 L aluminum pot is filled to the brim with water and heated from 10.0°C to the boiling point…
A: Solution:
Q: Steel balls (diameter = 21 mm, p = 7833 kg/m, k = 54 W/m:°C, Cp = 0.465 kJ/kg-°C, and a = 1.474x10 m…
A:
Q: A A coldering Iron hos a in diameterand 20 mm in lenath. With age and Cylindrical tip of a Sm usage,…
A:
Q: Heat Transfer In the energy conservation equation, consider assumption and cross-out variables,…
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Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1527 kJ is…
A: Given:Q=1527 KJ/kgT1=27 CT2=101 Cρ=1014 kg/m3c=3.3 KJ/kg.K
Q: 3 Brass cube "p = 8530 kg/m , c= 380 J/kg.°C, k = 110 W/m.°C, a = 33.9E-6 W/m.°C", side length = 9…
A: The step by step solution is given below, h = 17.3 W/m2 C k = 110 W/mK
Q: Determine the quantity (volume) of saline water in a steam generator. The heat energy of 1576 kJ is…
A:
Q: Briefly discuss another ONE heat transfer mechanism between the human body and the environment in…
A: As mentioned that due to radiation heat transfer between our body and atmosphere we feel hotter in…
Q: Q) Calculate the total amount of rejected heat that will be required to convert 0.5 Kg of steam at…
A:
Q: The radius and the length of a cylindrical metal are 5.00 cm and 20.00 cm at 25°C, respectively.…
A: Given l=20.02 cm (del)T=85.25 degree C Q=9000 J
Q: b) A cooking pan is made of aluminium of mass 2kg and a specific heat capacity of 0.95KJ/kgK. The…
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Q: Air Ta = 0°C D Is Ясоnd A liquid water droplet of diameter D = 255 µm falls on a cold surface with…
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Q: Read the question carefully and give me right solution according to the question. Note: Don't copy…
A: Given datar0=5 mm T0=400°C T∞=20°C hw=10814 w/m2kTs=3000 kg/m3 C=1000j/kgk σ=6.66×10-6…
Q: 7.In the following, which one cannot enhance the convection heat transfer? ( )
A: Option (A) Replacing forced convection by natural convection. Is correct option
Q: Thermodynamics In a solid sphere of 0.2 m diameter, heat is generated at the rate of 1.2 x 106…
A: Given:d=0.2 mq=1.2*106 W/m3Tc=300°Ck=50 W/m.k
Q: A 2x2-m glass window, 1 cm thick is subjected to 10°C and 3°C inner and outer temperatures…
A: As per given question A 2x2-m glass window, 1 cm thick is subjected to 10°C and 3°C inner and outer…
Q: Two balls (A and B) are made of the same heated to the same temperature and allo the same medium…
A: Given:DADB=2
Q: A 10 cm thick and 1 m wide long steel plate is immersed in an oil bath at T0 = 40 ° C when the…
A:
Q: In a quiescent hot summer day, you are walking under the sunlight. Suddenly, you remember heat…
A: Given :- In a quiescent hot summer day, you are walking under the sunlight. Suddenly, you remember…
Q: A food product with 80% water content in a 10 cm diameter can be frozen. Mass of the product type is…
A: Given data, x = Moisture contains in the food product = 0.8 a = Diameter of the food product = 0.1 m…
Q: Water (C, = 4180 J/kg-K) enters a 4-cm-diameter tube at 15°C at a rate of 0.06 kg/s. The tube is…
A: As per given question we have to define lengths of tube.
Q: A 10 kg solid at 100°C with a specific heat, of 0.8 kJ/kg°C is immersed in 40 kg of 20°C liquid with…
A: Given data: ms=10 kgTs=100°CCs=0.8 kJ/kg°Cml=40 kgTl=20°CCl=4 kJ/kg°C Need to determine the final…
Q: In an aluminum container weighing 0.30 kg are 0.70 kg of water in thermal equilibrium at a…
A: Given data: mAl=0.3 kgmw=0.7 kgQ=2.5K/minT=70°C Need to determine the flux leaking from the…
Q: A copper rod, an aluminum rod, and a brass, each 6.00 m length and 1.00 cm diameter, are placed end…
A: Given Aluminium rod Brass rod Copper rod To find The value of T1 and T2
Q: A solid hemisphere of radius 5 cm to be cooled in air (at 20 o C, h=10 W/m 2 .K) from 200 oC to…
A: Given:air properties,Ta=20o Ch=10 W/m2.Kfor solid hemisphere,r=5 cmTi=200o CT=150o Cdensity, ρ=8500…
Q: Q) Calculate the total amount of rejected heat that will be required to convert 0.5 Kg of steam at…
A: given data- mass of steam = 0.5 kg temperature of steam =Tsteam = 150 deg C temperature of ice…
Q: An electric current is passed through a wire 1 mm in diameter and 10 cm long. The wire is submerged…
A: Given problem belongs to subject HEAT TRANSFER and ENERGY BALANCE EQUATION is used to solve the…
Q: a. In your own words, why does the concept of average heat transfer coefficient was introduced? b.…
A: (a) For flow over a flat plate, convective heat transfer changes over the length as the heat…
Q: A certain liquid flow inside a 4 cm diameter pipe, 6 meter long with an entering temperature of 350…
A: Given data: di=4 cmL=6 mT=350°CTw=575°Cm˙=60 kg/minPr=0.003μ=0.003 N.s/mk=6.2 w/m-k, Cp=0.41 kj/kg-k…
Q: Assume that cream has a specific heat of 2900 J/kg· ◦C and has the same heat of fusion (3.34 × 105…
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Q: B- A Blood warming device contains a 20 mm diameter copper pipe is used to carry warm water, the…
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Q: Describe with figure onshore system of electricity generation.…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Heat Transfer Question. Please explain step by step for the better understanding, thanks.
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- Codfish fillets originally at 10 °C are packed to a thickness of 102 mm. Ice is packed on both sides of the fillets and wet-strength paper separates the ice and fillets. The surface temperature of the fish can be assumed as essentially 0 °C. Calculate the time for the center of the fillets to reach 2.22 °C and the temperature at this time at a distance of 25.4 mm from the surface. Also, plot temperature versus position for the slab using a spreadsheet software. The physical properties are k = 0.571 W/m*K, p = 1052 kg/m³, and Cp = 4.02 kJ/kg*K. Use Heissler charts to answer this question.Codfish fillets originally at 10 °C are packed to a thickness of 102 mm. Ice is packed on both sides of the fillets and wet-strength paper separates the ice and fillets. The surface temperature of the fish can be assumed as essentially 0 °C. Calculate the time for the center of the fillets to reach 2.22 °C and the temperature at this time at a distance of 25.4 mm from the surface. Also, plot temperature versus position for the slab using a spreadsheet software. The physical properties are k = 0.571 W/m*K, ρ = 1052 kg/m3, and Cp = 4.02 kJ/kg*K. Use Heissler charts to answer this question.An underwater sonar that maps the ocean bathymetry is encapsulated in a sphere with a diameter of 85 mm. During operation, the sonar generates heat at a rate of 300W. What is the sonar surface temperature when it’s located in a water column where the temperature is 15o C and the water current is 1 m/sec? The sonar was pulled out of the water without turning it off, thus, it was still working. The air temperature was 15o C and the air speed was 3 m/sec. What was the sonar surface temperature? Was there any reason for concern?
- Volumetric expansion coefficients of simple materials are often well cataloged. However, the thermal expansion coefficient B of a human body is less well known. This could affect the human body's specific gravity and, therefore, measurements of its body-fat ratio. Suppose that a human body of weight wo on dry land is placed on a scale while completely immersed in formaldehyde of temperature T1- Once the temperature increases by AT, the scale reading drops by Aw. Derive an expression for ß in terms of AT, wo, and Aw by assuming that the ratio of the density of formaldehyde ef and the initial density of the body Po is R = Pf/pb. Assume also that pf does not change when heated. B = %3D If the body weighs 237.2 lb on dry land and his weight reading lowers by 0.237 lb when the formaldehyde is heated from 63.40 °F to 82.80 °F, calculate the coefficient of volume expansion of the body.* Assume R = 0.820. 1/°C B =For laminar free convection from a heated vertical surface, the local convection coefficient may be expressed as hy Cx-1/4, where h, is the coefficient at a distance x from the leading edge of the surface and the quantity C, which depends on the fluid properties, is independent of x. Obtain an expression for the ratio hx/hx, where x is the average coefficient between the leading edge (x = 0) and the x-location. Sketch the variation of h, and hy with x.Q2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.ºC and thermal conductivity= 204W/m°C. Determine th Bi number and And determine the time required to cool sphere to 263k
- What is the rate of heat transfer through a piece of Celotex 3 ft by 8 ft by 1 in. in thickness, if the temp of one surface is 80°F and of the other side is 60°F? thermal conductivity of Celotex in AES = 0.028. Pls determine the temperature gradient and the direction of the heat transfer as well.A copper rod of 30 kg initially at the temperature of 300 °C needs to be immersed and fitted tightly into a ABA alloy ring with inner diameter 30.0015 mm found in tank of 100 liters water of 25 °C. (i) Determine the diameter copper when it is 300 °C. (ii) In your opinion, does the copper rod will still fit tightly into the ABA alloy ring inner diameter 30.0015 in the ambient air condition of 25 °C. Provide your answer in 4 decimal places. Assume the alloy ABA is very small with negligible effect in heat transfer. [Density for copper = 8890 kg/m3, Specific heat, Ccopper = 385 J/kg.°C;Coefficient of thermal expansion, αCopper = 18.0 × 10-6 (°C)-1]. [Density for ABA alloy = 8500 kg/m3, Specific heat, CABA = 138 J/kg.°C;Coefficient of thermal expansion, αABA = 13.3 × 10-6 (°C)-1]. [Density for water = 1000 kg/m3, Specific heat, Cwater = 4200 J/kg.°C].Let's say a 3.0 gram copper wafer is dropped from a height of 50.0 meters. If 60% of the potential energy lost in the drop could be converted to thermal energy used to heat the copper from an initial temperature of 25 degrees celsius, what would the final temperature of the copper wafer? Would the answer be different if the wafer has a mass greater than 3 grams? Note: the specific heat of copper is 387 J/(kg*K). The temperature is between 25.8 and 26.0 degrees celsius, yes the bigger the mass the greater the energy. O The temperature is between 25.6 and 25.8 celsius, answer does not depend on mass. O The temperature is between 25.0 and 25.2 celsius, answer does not depend on mass. O The temperature is 25.5 and of course the more mass something has the greater energy will be needed to raise the temperature. The temperature is 26.2 and if the mass is doubled so will be the change in temperature. O The temperature is 25.9 degrees celsius and the answer does not depend on mass. O The…
- To ensure a tight fit, the aluminum rivet used in airplane construction are made slightly larger than the rivet holes and cooled by dry ice (solid CO2) before being driven. If the diameter of a hole is 0.500 cm, what should be the diameter of a rive at 20 degree Celsius if its diameter is equal that of a hole when the rivet is cooled to -78 degree Celsius, the temperature of dry ice? Assume the coefficient of expansion to remain constant. (Given and solutions)It is aimed to produce frozen potatoes in a newly established business. The entry temperature of the cleaned potato to the system is -16 °C, and the desired temperature to reach 10 °C. For this purpose, a refrigerant at -25 °C will be used. In the freezing process, potatoes of certain sizes are placed in the ice cream basket, the basket is immersed in the tank containing the refrigerant and kept during freezing. A cooling system is designed around the tank and 1M Joule per hour removes heat from the tank to keep the temperature of the tank constant at -25 °C. It is desirable to produce potatoes of different shapes. These shapes are spheres with a diameter of 20 mm, a cube with dimensions of 16x16x16 mm and a rectangular prism with a diameter of 12x12x25 mm. In such a process,a. What should be used as refrigerant?b. What is the daily production capacity for each product?c. What would you recommend to increase production capacity?Current Attempt in Progress 40°C and the corresponding convection coefficient is h; = 30 W/m2.K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T, The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T; = -10°C and the 0,0 associated convection coefficient is h, = 65 W/m2-K? Evaluate the properties of the glass at 300 K. °C Isi i °C Ts,0 i || ||