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What is the convective heat transfer coefficient of water and how does it impact the rate of heat transfer in a system?
The convective heat transfer coefficient of water is a measure of how easily heat can move through water. A higher convective heat transfer coefficient means heat can transfer more quickly. In a system, a higher convective heat transfer coefficient can increase the rate of heat transfer, making the system more efficient at exchanging heat.
Which point indicates convective heat transfer?
Convective heat transfer occurs in fluids, such as air or water, when the fluid moves and carries heat with it. It is represented by the point on a heat transfer curve where heat is transferred due to the movement of the fluid, creating a convective heat transfer process.
What is the convective heat transfer coefficinet for air at atmospheric condition and how it change with other factors?
The convective heat transfer of any fluid is dependent on its velocity, viscosity...and other properties. The higher the velocity the higher the coefficient. Generally indoor convective heat transfer of air is approximately 40 W/m2.K It varys depending on wind conditions, generally within the range of 10-100 W/m2.K
What is the flow of energy due to a temperature difference called?
The flow of energy due to a temperature difference is called heat transfer. Heat transfer can occur through three main mechanisms: conduction, convection, and radiation.
What does the transfer of energy in the radiative zone differ from the transfer Convective zone?
In the radiative zone of a star, energy is transferred through electromagnetic radiation (photons) as it travels from the core to the convective zone. In contrast, in the convective zone, energy is transferred by the physical movement of hot gas or plasma through convection currents.
How does temperature affect the rate of heat transfer?
For conductive and convective heat transfer, the rate of heat transfer is proportional to the the temperature difference; if you double the difference you will double the rate of heat transfer. For radiative heat transfer, the rate of heat transfer is proportional to the difference of the 4th powers of the absolute temperatures.
What is the physical significance of nusselt number how is it related with convection and conduction heat transfer hence work out its relationship with the appropriate prameters?
The Nusselt number is the ratio of convective to conductive heat transfer across the boundary layer. Nu=(hL)/k h is heat transfer coefficient L is the characteristic length k is the thermal conductivity
What is the convective heat transfer coefficient of water and how does it impact the rate of heat transfer in a system?
The convective heat transfer coefficient of water is a measure of how easily heat can move through water. A higher convective heat transfer coefficient means heat can transfer more quickly. In a system, a higher convective heat transfer coefficient can increase the rate of heat transfer, making the system more efficient at exchanging heat.
Which point indicates convective heat transfer?
Convective heat transfer occurs in fluids, such as air or water, when the fluid moves and carries heat with it. It is represented by the point on a heat transfer curve where heat is transferred due to the movement of the fluid, creating a convective heat transfer process.
What is the formula for Nu?
The Nusselt number (Nu) is dimensionless and represents the ratio of convective to conductive heat transfer. It is commonly calculated as Nu = hL/k, where h is the convective heat transfer coefficient, L is a characteristic length, and k is the thermal conductivity of the fluid. Additional correlations and equations may be used depending on the specific flow conditions and geometry.
What is convective heat?
Convection heat transfer is the transfer of heat by the movement of a fluid.
How many heat transfer zone in boiler?
convective and radiant heat transfer
What is the transfer of thermal energy from one object to another due to a difference in temperature is known as?
The transfer of thermal energy when particles of a fluid move from one place to another is convection. Temperature is a measure of how hot or cold an object is compared to a reference point.Another AnswerNo. Heat (the term, 'thermal energy', is obsolete) is defined as 'energy in transit from a warmer body to a cooler body'. So a temperature difference is necessary for heat transfer to take place.It is not heat it is convection.
What is the convective heat transfer coefficinet for air at atmospheric condition and how it change with other factors?
The convective heat transfer of any fluid is dependent on its velocity, viscosity...and other properties. The higher the velocity the higher the coefficient. Generally indoor convective heat transfer of air is approximately 40 W/m2.K It varys depending on wind conditions, generally within the range of 10-100 W/m2.K
What is convective heat transfer?
Convection heat transfer is the transfer of heat by the movement of a fluid.
What is the flow of energy due to a temperature difference called?
The flow of energy due to a temperature difference is called heat transfer. Heat transfer can occur through three main mechanisms: conduction, convection, and radiation.
What does the transfer of energy in the radiative zone differ from the transfer Convective zone?
In the radiative zone of a star, energy is transferred through electromagnetic radiation (photons) as it travels from the core to the convective zone. In contrast, in the convective zone, energy is transferred by the physical movement of hot gas or plasma through convection currents.
