Do similar way but not copy same data because in the question data is different givenASAP And do all parts ›→→Step 1Given Data• Work inlet is: Win 400 hp 282.72 Btu/st• Heat output is: - 1500 Btu/min=25 btu/sStep 2(a)By using the energy balance equationW + m (h₁ + 2) = + m (h₂ + ² )W-Qm (h₂-h₁+¹²)............. ·(1)Enthalpy and entropy at 15 psia and 60°Fh = 124.27 Btu/lbm$10.59173 Btu/lbm R.Enthalpy and entropy ath₂260.97 Btu/lbm$20.76964 Btu/lbm RStep 3Substitute values in expression (1)282.72-25-m (260.97-124.27+350-0² (2007))m 1.852 lbm/sThus the mass flow rate of the air is 1.852 lbm/s150 psia and 620°F(b)By using the entropy balance equationSgen = m (82-81) +(²)The change in entropy is52-51-0.76964-0.59173-R In ()-0.76964 -0.59173 -0.06855 In (1)-0.02007 Btu/lbm. R.Step 4Substitute values in expression (2)Spew (1.852) (0.02007) +25(60+460)-0,0853 Btu/s RThe rate of exergy destruction isx=Topen=400(60+460) (0,0853)-44.656 Btu/sx 768 B=63 hpThe portion of the power input is-0.15Thus the portion of the power input is 0.15isis 3. Air enters a compressor at ambient conditions of 15 psia and 77°F with a low velocity andexits at 180 psia, 740°F, and 480 ft/s. The compressor is cooled by the ambient air at 77°F at arate of 1800 Btu/min. The power input to the compressor is 450 hp. Determine (a) the massflow rate of air, (b) the portion of the power input that is used just to over-come theirreversibilities, (c) the maximum amount of power input, and (d) the second-law efficiency oitsthis compressor.

Answered: Image /qna-images/answer/875c5d90-ad38-4d03-ad71-498569af3ca4.jpg

3. Air enters a compressor at ambient conditions of 15 psia and 77°F with a low velocity and exits at 180 psia, 740°F, and 480 ft/s. The compressor is cooled by the ambient air at 77°F at a rate of 1800 Btu/min. The power input to the compressor is 450 hp. Determine (a) the mass flow rate of air, (b) the portion of the power input that is used just to over-come the irreversibilities, (c) the maximum amount of power input, and (d) the second-law efficiency o this compressor.

3. Air enters a compressor at ambient conditions of 15 psia and 77°F with a low velocity and exits at 180 psia, 740°F, and 480 ft/s. The compressor is cooled by the ambient air at 77°F at a rate of 1800 Btu/min. The power input to the compressor is 450 hp. Determine (a) the mass flow rate of air, (b) the portion of the power input that is used just to over-come the irreversibilities, (c) the maximum amount of power input, and (d) the second-law efficiency o this compressor.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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