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if the old radiator is replaced with a new one that has longer tubes made of the same material and same thickness as those in the old unit, what should the total surface area available for heat exchange be in the new radiator to achieve the necessary heat exchange rate at the recommended temperature gradient?

Respuesta :

First of all, we need to find the total surface area of the old radiator which is; 3/2* area of old radiator.

From the question that we have been given,

We can say that the Thermal conductivity is the same for both radiators.

We can use the following formula to get the surface area of the new radiator;

K = Q/A*ΔT

change in T =  ΔT

So, we can say the surface area for the new radiator is 3/2* area of the old radiator.

A heat exchanger

This is a heat transfer device, usually used to in transferring heat from one source to another and eventually to a working fluid. This heat exchangers are very vital in the cooling and heating processes. The fluids can be separated to avoid mixing. They are normally in many places such as, refrigeration, space heating, power plants etc.

Please click the link below to learn more about a heat exchanger:

https://brainly.com/question/29816989

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