Chemical Heat Transfer | Test For NTS PPSC FPSC, TEST

A. Vertical heat exchanger with steam on tube side
B. Vertical heat exchanger with steam on shell side
C. Horizontal heat exchanger with steam on tube side
D. Horizontal heat exchanger with steam on shell side

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Category: Chemical Heat Transfer

For evaporation of viscous solution in a multiple effect evaporator, the preferred feeding scheme is _________________?

Steam is to be condensed in a shell and tube heat exchanger, 5 m long with a shell diameter of 1 m. Cooling water is to be used for removing the heat. Heat transfer co-efficient for the cooling water, whether on shell side or tube side is the same. The best arrangement is_____________?

Fouling factor_____________________?

In the free convection regime of pool boiling, the heat flux is proportional to__________________?

With increase in temperature, the thermal conductivity of a gas ___________________?

Heat transfer co-efficient (h) for a fluid flowing inside a clean pipe is given by h = 0.023 (K/D) (DVρ/μ)0.8 (CP.μ/k)0.4. This is valid for the value of NRe equal to_______________?

Multipass heat exchangers are used______________________?

Peclet number (Pe) is given by____________________?

Indirect contact heat exchangers are preferred over direct contact heat exchangers, because_________________?