choose the correct answers 12:07ll ?A alfarahidiuc.comAnswer all of the questionQ2/ In an axial flow compressor, airenters at a stagnation temperature of290 K and 1 bar. The axial velocity ofair is 180 m/s (constant throughout thestage), the absolute velocity at theinlet is 185 m/s, the work done factoris 0.86 , and the degree of reaction is50%. If the stage efficiency is 0.86,calculate the air angles at the rotorinlet and outlet and the stagnationtemperature rise of the stage andstage pressure ratio. Assume a rotorspeed of 200 m/s. hint : Cp = 1005J/kg.k and X = 1.4 a) a1=B2=13.350 ,a2=B1=41.150 , ATos = 19.62 K , nstage= 1.22 b) a1=B2=15.250 , a2=B1=38.260ATos = 16.24K , nstage = 1.45 c)a1=B2=16.780 , a2=B1=47.780 , ATos =13.64 K, Tnstage = 1.35 d)a1=B2=18.350 , a2=B1=35.160 , ATos =19.62 K , nstage = 1.89 e) None of%3D%3D%3DaboveO aObOcOdOeارسال الاجابةخروجعد د الاسئلة :701:22:24

Answered: Image /qna-images/answer/00f20e42-baec-4b53-8369-d23bf43bf452.jpg

Answered: Q2/ In an axial flow compresse

Engineering

Mechanical Engineering

Q2/ In an axial flow compresse

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

See similar textbooks

Similar questions

K) that undergo an K-K 13. There are 1.5 Kgof a gas where K = 1.3 and R = 0.38 tsochoric process from pi = 0.552 MPa, t, = 58.5°C top2 = 1.66 MPa. During the process, there added 100 KJ of heat. Compute the heat transferred, change of internal energy and the change of entropy. %3D
(7-2 from textbook) Determine the specific compressor Enthalpy Entropy work input required to compress steam isentropically from 100kPa to 1 MPa assuming that steam exists as saturated vapour at the inlet. Sat. Set Sat Sat. Evap., hy 2257.9 267s.O 1.3028 6.0562 7.3589 liquid, vapor, iquid, Evap vapor, 417.51 kug kg kikg K mlkg P 100 MPa IS79.88 C 0.19437 2582.8 2777 1 6.5850 Sat. 200 0.20602 26223 2828.3 5.6956 250 0.23275 27104 2943.1 6.9265 300 0.25799 2793.7 30E16 7.1246 350 0.28250 2875 7 3158.2 7.3029 400 0.30661 2957.9 3254.5 7 4670 500 0.35411 3125.0 3479.1 7.7642 600 700 0.40111 3297 5 3698.5 B.0311 0.44783 3476.3 3924.1 8.2755 0.49438 36617 4156.1 8.5024 0.54083 3853.9 4354.8 8.7150 0.58721 4052.7 454C.0 8.9155 800 900 1000 1100 0.63354 4257.9 4391 4 9.1057 1200 0.57983 4459.0 5148.9 9.2866 1300 0.72610 4685.8 5411.9 9.4593
Home work dulmalel An axial flow compressor having eight stages and with (50%) reaction design compresses air in the pressure ratio of 4:1. the enters the compressor at (200.C) and flows through it with a constant speed of (90 m/s). The rotating blades of compressor rotate with a mean speed of (180 m/s). isentropic efficiency of compressor may be taken as 82%. Calculate: (i) Work done by the machine (ii) Blades angles. If y=1.4. Cp=1.005 kj/kg K.
Exercises 1. The approach & efficiency of cooling tower is 10°C 4 60% respectively. If the tempe- rature of the H₂0 leaving the tower is 37°C, What is the temperature of H₂0 entering?
calculate T and spesific enthalpy
UPVOTE WILL BE GIVEN FOR FAST ANSWERS WRITE LEGIBLY THANKS
A confined volume of 27 moles an ideal gas (with y = 1.42) goes through an expansion process so at the final volume is six times the initial volume, and the final pressure is one eighth the initial ressure. a. What is the final temperature in terms of the initial temperature? b. What is the total change in entropy for the gas?
Question 1. Refrigerant-I34a enters a compressor (as a saturated vapor) at 14°C. It leaves at 1600 kPa, enthalpy of 265 KJ/kg. Velacity is 5s m/s. Mass flow rate is 4.6kg/s. Use property table. What is the qua lity of R-134a at the exit in percentage ? O Rate of work done in KW?
can you write all steps ,and what you use (chart) be hurry please
occuring when a process with air, the entropy goes up by 0.60 kJ/kg·K. 11 is the pressure compression ratio. 300K is the initial temperature. What is the final temperature if it is a constant specific heat and if it is a variable specific heat? When Rair = 0.287 and cp = 1.005 kJ/kg·K.
What is the ideal mass flow rate for a refrigeration and cryogenic plant for oxygen production? Show solution if necessary and reference.
At the start of the compression process in the reciprocating compressor of refrigeration plant the refrigerant is at 1.5 bar, dry saturated. At the end of the compression process, which is according to a reversible polytropic law pv-C., The pressure is 6.5 bar. Using the properties of refrigerant given as table, interpolating where necessary, calculate. • The change of specific entropy during the • The degree of superheat of refrigerant after compression. process.