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Hello experts,

I want to do thermal design of hydraulic cooler with details of hydraulic tank capacity and with pump capacity and cold fluid as water

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2 comments

Ankita Daga 1yr
Advection is heat transfer by bulk fluid motion. Convection is heat transfer by both the bulk fluid motion that is advection and random motion of fluid molecules that is conduction or diffusion.

Parag Chaware 1yr
Good,
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Anonymous
5mo
What is thermal diffusivity
1 comment

PRERNA MEHER 5mo
Thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the rate of transfer of heat of a material from the hot side to the cold side. It has the SI derived unit of m²/s.


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What is the difference between convection and Advection ?

Parag Chaware
5mo
What is the difference between convection and Advection ?
2 comments

Ankita Daga 5mo
Advection is heat transfer by bulk fluid motion. Convection is heat transfer by both the bulk fluid motion that is advection and random motion of fluid molecules that is conduction or diffusion.

Parag Chaware 5mo
Good,


Add comment

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How does the heat transfer rate differ in liquid Vs solid?

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How does the heat transfer rate differ in liquid Vs solid?

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State Planck's law and Wien's displacement law.

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State Planck's law and Wien's displacement law.

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which type of heat exchanger is used for industrial and other applications?why

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which type of heat exchanger is used for industrial and other applications?why

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What is difference between Biot's number and nusselt's number?

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What are the assumptions in Nusselt's theory

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What are the assumptions in Nusselt's theory

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State the difference between Grey Surface and Diffused Surface. 

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State the difference between Grey Surface and Diffused Surface. 

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In which case is LMTD method used and in which case is NTU method used?  Why?

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In which case is LMTD method used and in which case is NTU method used?  Why?

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Does food grill because of heat or radiant heat??

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Does food grill because of heat or radiant heat??

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why biot number should be   less 0.1 ? and why biot number has lumped heat capacity more apreciable for gas ?

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why biot number should be   less 0.1 ? and why biot number has lumped heat capacity more apreciable for gas ?

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what is space resistance? how it is different from surface resistance?

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what is space resistance? how it is different from surface resistance?

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Is parallel flow or counterflow more effective?

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Is parallel flow or counterflow more effective?

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Correction factor F is depends on which factor?

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Correction factor F is depends on which factor?

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What is a fully developed thermal region?

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What is a fully developed thermal region?

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What do you mean by steady state condition?

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What do you mean by steady state condition?

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what are the factors affecting thermal conductivity?

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What are the two separate process of nucleate boiling

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Does forced convection take place in our body?

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Does forced convection take place in our body?

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What is LMTD

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What are the types of heat exchangers and which is better

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What are the types of heat exchangers and which is better

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Why is higher heat transfer coefficient generally associated with dropwise condensetion than with film condensation?

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How is natural convection different from forced convection?

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How is natural convection different from forced convection?

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What is the significance of radiation shield??

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What is thermal contact resistance?

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What are recuperators and why are they preferred in engineering practices?

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What are recuperators and why are they preferred in engineering practices?

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The formula's of biot and nusselt numbers are same,then what is the difference between them?

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The formula's of biot and nusselt numbers are same,then what is the difference between them?

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How is the shape of fin decided for industrial application

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How is the shape of fin decided for industrial application

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Aluminium foil used for cooking food and storage sometimes has one shiny surface and one dull surface. Should the shiny side or the dull side be on the outside when the food is wrapped for baking and freezing , respectively?

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Aluminium foil used for cooking food and storage sometimes has one shiny surface and one dull surface. Should the shiny side or the dull side be on the outside when the food is wrapped for baking and freezing , respectively?

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Is heat transfer by radiation always accompanied by light?

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Is heat transfer by radiation always accompanied by light?

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Explain the significance of Grashoff's number

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Explain the significance of Grashoff's number

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Why mean film temperature is considered in convective heat transfers?

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What is the exact significance of thermal boundary layer and velocity boundary layer

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Explain why the temperature boundary layer grows much more rapidly than the velocity boundary layer in liquid metals

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Explain why the temperature boundary layer grows much more rapidly than the velocity boundary layer in liquid metals

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In pool boiling curve why does heat transfer coefficient increases rapidly in   film boiling region . What is the significance of radiation in it

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In pool boiling curve why does heat transfer coefficient increases rapidly in   film boiling region . What is the significance of radiation in it

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What is the exact significance of the Leidenfrost point in the pool boiling curve?

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What is the exact significance of the Leidenfrost point in the pool boiling curve?

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What are the requirements for advection to occur?

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What are the requirements for advection to occur?

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Both Nusselt number and the Biot number have same form.what is difference between variables employed and their physical significance.

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Both Nusselt number and the Biot number have same form.what is difference between variables employed and their physical significance.

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Why is it essential to remove air and other non-condensable gases present in condenser in large power plants?  

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Why is it essential to remove air and other non-condensable gases present in condenser in large power plants?  

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Can we have effective cooling effect by means of  radiation only?

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Can we have effective cooling effect by means of  radiation only?

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Name a few TIM's,state their characteristics and its effect or use.

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Name a few TIM's,state their characteristics and its effect or use.

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Why viscous fluid decreases contact resistance?

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Why is higher heat transfer coefficient is generally associated with dropwise condensation than with film condensation?

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Why is higher heat transfer coefficient is generally associated with dropwise condensation than with film condensation?

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What is dropwise condensation?

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What is the difference between diffusion and radiation heat transfer ?

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What is the difference between diffusion and radiation heat transfer ?

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Why does radiosity differ from emmisive power?

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Why does radiosity differ from emmisive power?

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Why are boilers and evaporators designed for values below critical heat flux? 

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Why are boilers and evaporators designed for values below critical heat flux? 

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what is the significance of biot number? 

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what is the significance of biot number? 

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What is the significance of Correction factor char

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What is the significance of Correction factor char

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In maximum heat transfer, why do we take C 

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In maximum heat transfer, why do we take C 

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What is the difference between convection and Advection ?

# data[].attributes.subject
What is the difference between convection and Advection ?