Schematic diagram for Rankine cycle is shown in figure below:

The work requried by the pump is _____ kW. (Take mass flow rate of water as 1.3 kg/s and density of $1000 k g / m^{3}$ ) (Correct to two decimal place)
26.15

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Solution

The correct option is A 26.15
$W_{p u m p, a c t u a l} = \frac{W_{p u m p, i d e a l}}{η_{P}}$

$= \frac{v (P_{2} - P_{1})}{η_{P}} \times m = \frac{0.001 \times (16100 - 10)}{0.80} \times 1.3 = 26.14625 k W$

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Schematic diagram for Rankine cycle is shown in figure below: The work requried by the pump is _____ kW. (Take mass flow rate of water as 1.3 kg/s and density of 1000 kg/m3) (Correct to two decimal place)26.15

The correct option is A 26.15 Wpump, actual=Wpump,idealηP =v(P2−P1)ηP×m=0.001×(16100−10)0.80×1.3=26.14625 kW

Schematic diagram for Rankine cycle is shown in figure below:

The work requried by the pump is _____ kW. (Take mass flow rate of water as 1.3 kg/s and density of $1000 k g / m^{3}$ ) (Correct to two decimal place)
26.15

The correct option is A 26.15
$W_{p u m p, a c t u a l} = \frac{W_{p u m p, i d e a l}}{η_{P}}$

$= \frac{v (P_{2} - P_{1})}{η_{P}} \times m = \frac{0.001 \times (16100 - 10)}{0.80} \times 1.3 = 26.14625 k W$