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jekas [21]
2 years ago
8

Consider a simple ideal Rankine cycle with fixed turbine inlet conditions. What is the effect of lowering the condenser pressure

on: (a) Pump work input; (b) Turbine work output; (c) Heat supplied; (d) Heat rejected; (e) cycle efficiency; (f) Moisture content at turbine exit
Physics
1 answer:
mr Goodwill [35]2 years ago
8 0

Answer:

The effect of lowering the condenser pressure on different parameters is explained below.

Explanation:

The simple ideal Rankine cycle is shown in figure.

Effect of lowering the condenser pressure on

(a). Pump work input :- By lowering the condenser pressure the pump work increased.

(b) Turbine work output :- By lowering the condenser pressure the turbine work increased.

(c). Heat supplied :- Heat supplied increases.

(d). Heat rejected :- The heat rejected may increased  or decreased.

(e). Efficiency :- Cycle  efficiency is increased.

(f). Moisture content at turbine exit :- Moisture content increases.

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Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.

Y axis y

     N- W = 0

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X axis (radial)

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the acceleration in the curve is centripetal

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the friction force has the expression

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we substitute

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we calculate

      v = \sqrt{0.1 \ 9.8 \ 3}

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to compare with the cyclist's speed let's reduce to the SI system

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When you are on a huge water slide what forces are there? when will you experience a net force?
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3 years ago
A copper rod of cross-sectional area 11.6 cm2 has one end immersed in boiling water and the other in an ice-water mixture, which
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Answer:

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Solution:

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Length of the rod, L = 19.6 cm = 0.196 m

Thermal conductivity of Copper, K = 390\ W/m.^{\circ}C

Conduction of heat from the rod per second is given by:

q = \frac{KA\Delta T}{L}

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