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400W/mK
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∙ 14y ago
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Does it make sense to divide thermal conductivity k by the heat transfer coefficient h and expect for most of the units to cancel?
yes
Conductive heat transfer coefficient of ptfe?
12
Why saturated steam is used in exchangers frequently rather then superheated?
The heat transfer coefficient of superheated steam is poor. Saturated steam has a better heat transfer coefficient, and also most of the heat transferred from steam occurs because of the condensation phase change.
What is the properties of cutting tool material?
Harder than work piece High thermal conductivity High heat transfer coefficient
What are the two things metal can conduct?
All metals conduct electricity.All metals conduct electricity.All metals conduct electricity.All metals conduct electricity.
What is the value heat transfer coefficient of copper?
i think it is 0.000016
Why is a car radiator made of aluminum?
The purpose of a radiator is to transfer heat from the engine to the atmosphere, so radiators need to be made of a material with a high heat transfer coefficient. Aluminum has a high heat transfer coefficient. In other words, aluminum conducts heat very well. There are other materials, such as copper, which conduct even better, but aluminum is more economical to use than copper.
Does it make sense to divide thermal conductivity k by the heat transfer coefficient h and expect for most of the units to cancel?
yes
Conductive heat transfer coefficient of ptfe?
12
Does juice temperature increase with increasing convective heat transfer coefficient at any constant kettle surface temperature?
Yes, the juice temperature increases with an increasing convective heat transfer coefficient at any constant kettle surface temperature. The convective heat transfer coefficient represents the efficiency of heat transfer from the kettle to the juice. As the convective heat transfer coefficient rises, more heat is transferred from the kettle surface to the juice per unit of time. This increased efficiency results in a faster temperature rise in the juice. Therefore, a higher convective heat transfer coefficient enhances the overall heating process, leading to a greater temperature increase in the juice even when the kettle surface temperature remains constant.
What is the value of an overall heat transfer coefficient in an engine oil cooler?
I have a book (Introduction to heat transfer - Bergmann), there is an example of an oil cooler cooled by air (crossflow heat exchanger with both fluids unmixed). There is written: "... with an overall heat transfer coefficient of 53 W/(m²*K)."
What is the best books of heat transfer?
Approach to heat transfer (SI units) By yunus cengel
What is the Heat transfer coefficient for aluminiun oxide?
around 40 W/mK
Why saturated steam is used in exchangers frequently rather then superheated?
The heat transfer coefficient of superheated steam is poor. Saturated steam has a better heat transfer coefficient, and also most of the heat transferred from steam occurs because of the condensation phase change.
Why does heat move by conduction in an empty space?
If you are asking about a box filled with a gas, then heat transfer can modeled as conduction through a solid. The requirement would have to be no fluid flow (obviously there is movement at the micro level), and the conductive heat transfer coefficient would be very low.Convection heat transfer is dependent on that conductive heat transfer coefficient of the liquid and is based on something called the Nusselt number.If you are asking about heat transfer through a completely void space, then heat would travel by means of radiation.
What is the heat transfer coefficient of fiberglass boat hull?
I think it is arounf 9w/m2k
High heat transfer coefficient film-wise condensation or drop-wise?
In dropwise condensation about 5-8 times higher coefficient than filmwise.
