A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Heat Transfer
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Parallel flow with process stream on tube side

Counter flow with process stream on tube side

Counter flow with process stream on shell side

Parallel flow with process stream on shell side

Parallel flow with process stream on tube side

Counter flow with process stream on tube side

Counter flow with process stream on shell side

Parallel flow with process stream on shell side

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Heat Transfer
In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

1

∞

< 1

> 1

1

∞

< 1

> 1

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Heat Transfer
In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

four times

twice

none of the listed here

square root of

four times

twice

none of the listed here

square root of

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Heat Transfer
A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires

More space

Lower maintenance cost

Less heating surface

None of these

More space

Lower maintenance cost

Less heating surface

None of these

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Heat Transfer
The units of resistance to heat transfer is

W⁻¹m²K

J.m⁻¹.K⁻¹

J.m⁻².K⁻¹

W.m⁻².K⁻¹

W⁻¹m²K

J.m⁻¹.K⁻¹

J.m⁻².K⁻¹

W.m⁻².K⁻¹

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Heat Transfer
The advantage of backward feed multiple effect evaporators over forward feed units is that

There is no additional cost of pumping

Equal heat transfer co-efficients exist in various effects

Heat sensitive material can be handled

Most concentrated liquid is at highest temperature

There is no additional cost of pumping

Equal heat transfer co-efficients exist in various effects

Heat sensitive material can be handled

Most concentrated liquid is at highest temperature

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Heat Transfer

Heat Transfer A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

Heat Transfer In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

Heat Transfer A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires

Heat Transfer The units of resistance to heat transfer is

Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that

Heat Transfer
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

Heat Transfer
In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

Heat Transfer
In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head

Heat Transfer
A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires

Heat Transfer
The units of resistance to heat transfer is

Heat Transfer
The advantage of backward feed multiple effect evaporators over forward feed units is that