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A broad question, so I will give a broad answer. A driving force is needed and what drives heat transfer is simply temperature differences between two bodies.
The mechanism at say a molecular level is really just the exchange of the energy from molecules to molecules. Higher energy molecules will collide with lower energy molecules and voila, you have heat transfer.
What else can I help you with?
What are the advantages disadvantages of concentric tube heat exchanger?
Advantages: Simplicity of design; Easy to clean and maintain; ideal for fluids that cause fouling. Disadvantages: Length cannot be extended beyond a limit Rate of heat transfer is low + high cost when considering amt of heat transfer. Heat looses occur from the outer shell.
What is wick tube used to heat pipe?
A wick tube is a component in heat pipes that utilizes capillary action to transport working fluid from the condenser section back to the evaporator. It typically features a porous structure or grooves that facilitate this movement, allowing the heat pipe to effectively transfer heat. By maintaining a continuous cycle of evaporation and condensation, the wick tube enhances the overall thermal efficiency of the heat pipe. This design is crucial for applications where efficient heat transfer is essential, such as in electronics cooling and thermal management systems.
what design formulas of water tube boiler?
The design formulas for a water tube boiler primarily involve calculations for heat transfer, pressure drop, and thermal efficiency. Key formulas include the heat transfer equation ( Q = U \cdot A \cdot \Delta T ), where ( Q ) is heat transfer rate, ( U ) is the overall heat transfer coefficient, ( A ) is the surface area, and ( \Delta T ) is the temperature difference. Additionally, boiler efficiency can be calculated using ( \eta = \frac{Q_{output}}{Q_{input}} ), while pressure drop can be estimated using Darcy-Weisbach or Hazen-Williams equations, depending on the fluid flow characteristics. Proper material selection and structural integrity must also be ensured through stress analysis based on operating pressures and temperatures.
What is interfacial area?
when two material are brought to contact,so the space where they made contact is called interfacial area,it is usually considered in heat transfer calculation
What is chevrons in boiler?
Chevrons in a boiler refer to the angled or zigzag-shaped elements found within the heat exchanger or economizer sections. Their primary function is to enhance heat transfer efficiency by increasing the surface area and promoting better fluid distribution. This design helps to maximize the contact between the flue gas and the heat transfer surfaces, leading to improved thermal performance and energy efficiency. Additionally, chevrons can assist in reducing fouling by directing the flow of gases more effectively.
How heat transfer is controlled?
There is a special mechanism that controls heat transfer.
What is the heat transfer mechanism responsible for the daily wind cycle?
heat transfer through convection.
Which mechanism is not a way to transfer heat?
Fusible link
What is the least important mechanism of heat transfer in the whole atmosphere?
Conduction is the least important mechanism of heat transfer in the whole atmosphere. It is less efficient in transferring heat because the air is a poor conductor, and convection and radiation are the dominant mechanisms of heat transfer in the atmosphere.
What is a mechanism of heat transfer that involves direct contact?
conduction
What is the major heat transfer mechanism within solids?
conduction
What are the three major mechanism of heat transfer?
The three major mechanisms of heat transfer are conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between materials. Convection is the transfer of heat through the movement of fluids. Radiation is the transfer of heat through electromagnetic waves.
What are the mechanism of heat transfer?
Radiation, conduction, and convection You may want to look on this website!
What type of heat transfer occurs between a pan and a hot stove burner the pan is sitting on?
The predominant heat transfer mechanism used to transfer heat from the pan to the stove burner is radiation.
What is the least important mechanism of heat transfer?
Conduction is typically considered the least important mechanism of heat transfer because it is generally slower and less effective compared to convection and radiation. Conduction requires direct contact between molecules or particles to transfer heat, making it less efficient for transferring heat over long distances or through fluids.
Mechanism of osmotic and heat transfer in vegetable?
i wanted to know the effect of the above question on vegetable
Distinguish between valence and conduction electron hence explain the mechanism of electrons heat and heat transfer in conduction?
Why is conduction important?
