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Debora [2.8K]
3 years ago
14

The pressure ratio of gas turbine power plant cycle, operating with air, corresponding to maximum work for a given temperature l

imits of 288 K to 900 K, will be close to a) 5 b) 8 c) 6 d) 7
Engineering
1 answer:
Ivahew [28]3 years ago
7 0

Answer:

d) 7

Explanation:

Given that

Maximum temperature = 900 K

minimum temperature = 288 K

Condition for maximum work out put in gas turbine power plant

\left(r_p \right)_{optimum}=\left( \dfrac{T_{max}}{T_{min}} \right )^\frac{\gamma }{2\left ( \gamma -1 \right )}

Now by putting the values in the above equation

\left(r_p \right)_{optimum}=\left( \dfrac{900}{288} \right )^\frac{1.4}{2\left (1.4 -1 \right )}

\left(r_p \right)_{optimum}=7.33

It is close to 7

So our option d is right.

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Where loads are likely to be on continuously, the calculated load for branch circuits and feeders must be figured at (100%) (125
Anna [14]

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Without any extra adjustments or corrections, either 125% of the continuous load, OR

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This will be the same in the 2020 NEC. The introduction of new exception 2 is what has changed. To comprehend this new exception, one must study it very carefully. A part of a branch circuit connected to pressure connectors (such as power distribution blocks) that complies with 110.14(C)(2) may now be sized using the continuous load plus the noncontiguous load instead of 125% of the continuous load thanks to the new exception.

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4 0
1 year ago
The intake and exhaust processes are not considered in the p-V diagram of Otto cycle. a) true b) false
vovangra [49]

Answer:

b) false

Explanation:

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But actually in general we are not showing intake and exhaust line then it did not mean that in Otto cycle did not have intake and exhaust processes.

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