Differentiate between free and forced convection with examples.
Q: Air at 1 atm is flowing at a velocity of 2.2 m/s across a flat plate. The film temperature between…
A: Given data: Pressure of air = P = 1 atm Velocity of air = V = 2.2 m/s Film temperature between the…
Q: 7: horizontal steel pipe having a diameter of 5 cm is maintained at a temperature of 50◦C in a large…
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Q: what factors play a vital role in maximizing the convection heat transfer coefficient ?
A: convection heat transfer coefficient of Heat and mass transfer
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Q: Define Nusselt (Nu), Prandtl (Pr), Reynolds (Re) and Grashof (Gr) dimensionless numbers. State which…
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Q: a) What is forced convection? How does it differ from natural convection? Is convection caused by…
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Q: When a rectangle steel block 0.45 m by 0.65 m by 0.7m is initially at 450C. It is suddenly immersed…
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Q: A vertical 1.5-m-high, 2.8-m-wide double-pane window consists of two layers of glass separated by a…
A: Determined the film temperature Here surface temperature is Ts and room temperature is T0
Q: 3) Explain the difference between forced and free convection
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Q: A 10-cm-diameter and 10-m-long cylinder with a surface temperature of 10°C is placed horizontally in…
A: Given : The ambient temperature = 40 °C The surface temperature of the cylinder = 10 °C The diameter…
Q: In thermally fully developed flow of a fluid with constant properties, the local convection…
A: Thermally fully developed flow of fluid is in which temperature profile doesn't change along the…
Q: and Surface temperature 4. In what functions does Nusselt number in natural convection differ from…
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Q: A vertical, double-pane window(square), which is 1 m on a side and has a 25-mm gap filled with…
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Q: ou have experienced convection cooling if you have ever extended your handout of the window of a…
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Q: Driving force for the free convection is Shear stress forces Buoyancy forces None of the above…
A: This question is from heat transfer.
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Q: Consider a 0.5-m x 0.8-m thin square plate in a room at 25°C. One side of the plate is maintained at…
A: In this problem, the dimension of plate is 0.5 m by 0.8 m which is not a square plate but it is a…
Q: Using your own words and relevant equations, explain why the rate of heat transfer through…
A: The heat transfer through convection is faster than the rate of heat transfer through convection…
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Q: A metal ball with 0.15 m diameter contains heat source that dissipate 75 W. If the ball has an…
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Q: A 1.7-m-long thin vertical plate is subjected to uniform heat flux on one side, while the other side…
A: Given:- k=0.02588 W/m-k v=1.608 x 10-5 m2/s Pr=0.7282 ε=0.73 Tfc=30°C l=1.7m Tα=5°C Tl/2=55°C To…
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Q: Consider a sphere and cylinder that have the same volume and radius made of copper. Both of them are…
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Q: For the Convective Heat Transfer experiment, describe the difference in the procedures: Natural or…
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Q: Consider a 0.6-m * 0.6-m thin square plate in a room at 30°C. One side of the plate is maintained at…
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Q: A cylindrical bread at 145°C is cooling in air at 28°C. The loaf has 25cm length and 7 cm radius.…
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Q: Estimate the natural convection and radiation heat transfer from a person with average surface…
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Q: Air at 1 atm is flowing at a velocity of 1.5 m/s across a flat plate. The film temperature between…
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Q: What is the rate of heat loss from a heated horizontal pipe as a result of natural (free) convection…
A: Grashof number, Gr =(gβ∆T)D3/γ2 = 9.81*0.0031*(100-0)*(0.152)3/(2*10-5)2…
Q: Define convection and its types. Either free or forced convection is good by considering an example
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Q: :Define convection and its types. Either free or forced convection is good by considering an…
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Q: A can of engine oil with a length of 150 mm and a diameter of 100 mm is placed vertically in the…
A: The data given is, Length of the can of engine oil, L = 150 mm = 0.150 m Diameter of the can of…
Q: Explain why convection happens more often in gases and liquids than solids.
A: Convection is a mechanism of heat transfer taking place between two bodies by the movement of…
Q: Calculate the convection heat loss from the top and bottom of a flat 1 m square horizontal…
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Q: Describe the physical mechanism of convection. How is the convection heat-transfer coefficient…
A: To Describe the physical mechanism of convection. How is the convection heat-transfer coefficient…
Q: A vertical cylinder 1.5m high and 180 mm in diameter is maintained at 100C in an atmosphere…
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Q: How is convection caused? Explain with an example?
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- Differentiate between free and forced convection with examples.
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- Either free or forced convection is good by considering an example. please explainDefine convection and its types. Either free or forced convection is good by considering an example.Experiment No. (5) Heat Transfer, Power Input and Surface temperature Questions and Discussions 1. What is the difference between natural and forced convection heat transfer? 2. What sources of error are there in this experiment? 3. Mention the parameters you utilized during the calculation and discuss them briefly. 4. In what functions does Nusselt number in natural convection differ from forced convection, Discuss. 5. Give two examples of natural convection heat transfer. 6. In natural convetion, what makes the hot part of fluid to move?
- For the Convective Heat Transfer experiment, describe the difference in the procedures: Natural or FreeConvection and Forced convection. What makes the FORCED convection experiment as FORCED? Explain which, in your consideration should give the higher heat transfer rate? And REASON why? Did your results support your consideration?(B) Explain the difference between forced and free convectionA food product with 80% moisture content in a 5 cm diameter can wants to be frozen. The density of the product is 1000 kg / m cubic, the thermal conductivity is 1.0 W / (m K), and the initial freezing temperature is -1.75 ° C. After 10 hours in -25 ° C freezing medium, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder
- A plate is maintained at 74°C and this surface is facin an air having temperature of 30°C, then what will be th value of coefficient of volumetric expansion ß?A food product with 80% water content in a 10 cm diameter can be frozen. Mass of the product type is 1000 kg / m³, thermal conductivity is 1.0 w / (m k), and the frozen early temperature is -1.75 ° C.After 15 hours in the freezing medium -25 ° C, the temperature of the product becomes -10 ° C. Estimating the coefficient of moving the heat of the medium freezing convection. Assume cans as an unlimited cylinder. H = Answerw / (m² k).A food product with 80% moisture content in a 5 cm diameter can wants to be frozen. The density of the product is 1000 kg / m³, the thermal conductivity is 1.0 W / (m K), and the initial freezing temperature is -2.25 ° C. After 10 hours in the freezing medium -35 ° C, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder. h = Answer W / (m² K).
- Read the question carefully and give me right solution according to the question. A solid copper sphere (k = 393 W/mK), 10 mm in diameter, initially at 800C is placed in an air stream at 300 C. The temperature is dropped to 650C after 61 seconds. Calculate the value of convection coefficient. Assume properties as ρ= 8925 kg/m3, C = 397 J/kg K.A food product with 80% moisture content in a 10 cm diameter can wants to be frozen. The density of the product is 1000 kg / m³, the thermal conductivity is 1.0 W / (m K), and the initial freezing temperature is -2 ° C. After 14 hours in the freezing medium -30 ° C, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder.Obtain the following basic equations modeling natural convection in the two-dimensional plane at steady conditions in terms of the given dimensionless quantities. Note: The buoyancy term in the y-momentum equation will be obtained based on dimensionless numbers.