What is double pipe heat exchanger?
The double-pipe heat exchanger is one of the simplest types of heat exchangers. It is called a double-pipe exchanger because one fluid flows inside a pipe and the other fluid flows between that pipe and another pipe that surrounds the first. Flow in a double-pipe heat exchanger can be co-current or counter-current.
Which of the following has the maximum log mean temperature difference for a double pipe heat exchanger?
Which of the following has the maximum Log mean temperature difference for a Double Pipe Heat Exchanger? Explanation: The mean temperature difference for a counter-flow operation is uniform throughout the length of the tube and hence gives a higher value to the LMTD. 4.
Will Heat perpetually flow between the two bodies in each setup Why?
Yes , Because heat will always transfer from the warmer object to the colder object. The heat transfer will stop when the two objects are at the same temperature and reach thermal equilibrium. Heat will continue to flow until the two objects reach the same temperature, which is called thermal equilibrium.
What is the difference between heat rate and heat flux?
Heat flux or thermal flux is the rate of heat energy transfer through a given surface, per unit surface. Heat rate is a scalar quantity, while heat flux is a vectorial quantity. To define the heat flux at a certain point in space, one takes the limiting case where the size of the surface becomes infinitesimally small.
What is the correct formula for the rate of heat transfer?
c. q = (ΔT) / (k A l)
How do you calculate heat transfer from Watts?
Start by entering the known variables into a similar equation to calculate heat transfer by convection: R = kA(Tsurface–Tfluid). For example, if k = 50 watts/meters Celsius, A = 10 meters^2, Tsurface = 100 degrees Celsius, and Tfluid = 50 degrees Celsius, then your equation can be written as q = 50).
What is heat generation rate?
The total heat output of a reactor core is called the heat generation rate. The heat generation rate divided by the volume of fuel will give the average volumetric thermal source strength.
Is a bad conductor of heat and electricity?
Lead being metal is a bad conductor of electricity and heat. Compared to other metals, lead is a poor conductor of heat while gold, silver, platinum are good conductors of heat. Lead is malleable, it is easily bent, soft, dense and a poor conductor of electricity.
What are 4 poor conductors?
Non-metals are generally bad conductors or insulators. Metals, on the other hand, are good conductors. Some other examples of poor conductors of electricity are mica, paper, wood, glass, rubber, Teflon, etc. Some examples of poor conductors of heat are air, lead, etc.
What is the difference between good and bad conductors of heat?
Materials that allow heat to pass through them easily are called good conductors of heat. Materials that do not conduct heat as easily and quickly as metals do are bad conductors.