Pregunta: For the following problem, answer the following questions in the blank space. Natural gas at a temperature of 110°C is fed into a 1-4 heat exchanger with a 1" square configuration and 1 meter in length, to heat it up to 190°C with steam at 400° C, which leaves at 170°C. a) Indicate the maximum number of tubes that could fit in a 33" shell b) What will be

For the following problem, answer the following questions in the blank space.

Natural gas at a temperature of 110°C is fed into a 1-4 heat exchanger with a 1" square configuration and 1 meter in length, to heat it up to 190°C with steam at 400° C, which leaves at 170°C.

a) Indicate the maximum number of tubes that could fit in a 33" shell

b) What will be the maximum contact area generated by the tubes in square meters?

c) What will be the Heat that can be transferred through the tubes in Watts?

d) Indicate the total resistance that the heat transfer will have (°K/W), considering that there is NO conduction through the tubes. Add the fouling factors.

Additional data:

Typical U = 200 W/m2°C Convection Coefficient (W/°K) Area (m2)
Inside tubes 3500 0.08
Outside tubes 33900 0.10

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