Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K with a mass flow rate of 6 kg
/s. The compressor pressure ratio is 10 and the turbine inlet temperature is 1400 K. The turbine and compressor each have isentropic efficiencies of 80% and the regenerator effectiveness is 80%. For k=1.4 calculate
a) Thermal efficiency for the cycle
b) Back work ratio
c) Net power
d) Rate of exergy destruction in the regenerator for t0=300K
a) Thermal efficiency for the cycle
b) Back work ratio
c) Net power
d) Rate of exergy destruction in the regenerator for t0=300K
1 answer:
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Answer:
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Explanation:
Given that:
The anchor shown is used to tie tower guy cables to the ground and is supported by a distributed force from the soil, which can be approximated as shown. The anchor also is subjected to the loads shown, where P1 = 5 kNand P2 = 3 kN . The anchor is made from aluminum with E = 69 GPa . It is a cylindrical rod with diameter d1 = 4 cm with three segments of length L = 2 m . One end of the rod is linearly tapered to a diameter of d2 = 2 cm.
a. Calculate the intensity of the reaction load, Po
b. Use the reaction found in Part A, po = 13 kN/m , and calculate the total change in length for the anchor.
