Answer / sharadha

O.H.T.C is usually used in conduction-convection systems
where there are several resistances in series formed on the
heat transfer surface.
I.H.T.C is used only for convection systems where der is
only a single resistance to the heat transfer surface.this
is d basic difference.

Answer / prokash

There are two type of heat transfer co-efficient.
Internal heat transfer co-efficient and external heat
transfer co-efficient. they are separately called individual
heat transfer coefficient. and the combined effect of them
to heat transfer is called Overall heat transfer coeficient.

Answer / apurva

Overall heat transfer coefficient is the conductance for all the materials through which heat is flowing. It can be obtain by adding individual heat transfer coefficients for each material.
Just like getting electrical resistance from the circuit, heat transfer coefficient varies with the material presence of material in the series or parallel attachments.

Answer / aroh shrivastava

the sum of indivisual heat transfer coeffincint that is
film coefficint is called UHTc. and when it take
indivisually it is called IHTC.

Whal will be the HRC fuse rating of a 3phase 415V,50Hz,0.85pf,95%efficiency,30KW,1450rpm induction motor,starting with a DOL starter.and describe the Fuse rating calculation.

1 Answers  

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6 Answers   ONGC,

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0 Answers   Okaya,

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0 Answers   ME,

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CHEMICAL ENERGY BALANCE - EXAMPLE 11.3 : For liquid benzene, the CP constants are : a = 129440, b = - 169.5, c = 0.64781. Reference temperature is 298 K. The temperature of benzene is 60 degree Celsius. Calculate the enthalpy of benzene by using the formula H = a (DT) + (b/2) (T^2 - TREF^2) + (c/3) (T^3 - TREF^3) where ^ is power, DT is temperature difference with TREF = 298 K. H is in J / kmol. DT = T - TREF.

1 Answers  

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What is the practical particle size limit for pneumatic conveying?

0 Answers  

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wha is Adsorption column chromatography?

0 Answers  

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ENGINEERING MATHEMATICS - EXAMPLE 8.2 : In the US (United States), one barrel is equal to 42 US gallons and equivalent to 0.15898 cubic metres. One British barrel is equal to 36 Imperial gallons and equivalent to 0.163659 cubic metres. If an oil refinery in England sells 42 Imperial gallons of crude oil to a company in US, how much US gallons of crude oils has been sold?

1 Answers  

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