A 112 HP compressor motor runs at 500 rpm. The compressor has a twin-cylinder and a double-acting reciprocating piston. The bore is 200 mm and the stroke is 275 mm. It handles Nitrogen at a temperature of 80 F, from 100 KPa to 750KPA. The compressor efficiency is 80 %, mechanical efficiency is 90% and motor efficiency is 95%. Compression and expansion are polytropic with n=1.30. R = 296.86 J/kg-K. Determine: 6. The amount of compressed air, kg/min 7. The percent clearance (%),

A 112 HP compressor motor runs at 500 rpm. The compressor has a twin-cylinder and a double-acting reciprocating piston. The bore is 200 mm and the stroke is 275 mm. It handles Nitrogen at a temperature of 80 F, from 100 KPa to 750KPA. The compressor efficiency is 80 %, mechanical efficiency is 90% and motor efficiency is 95%. Compression and expansion are polytropic with n=1.30. R = 296.86 J/kg-K. Determine: 6. The amount of compressed air, kg/min 7. The percent clearance (%),

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

3- Air compressor compresses (7.8m/min) of air at (27°C) and (100kPa) to (925kPa). Determine the power required when the compression:(a) isothermal, (b) polytropic according to PV2–C. find the averall efficiency if the mechanical efficiency is (90%).
Consider an engine with a maximum speed of 7000 rpm. The bore and stroke are 0.1 m, each. For an inlet air temperature of 330 K, determine the intake valve area (assume single valve per cylinder and take k=1.4). O 7.6 cm? O 11.3 cm2 O 4.6 cm2 O 8.3 cm2 O 9.5 cm?
i need the answer quickly
Q6/ A single compressor system using 134a has a three evaporators of 5, 15 and 20 tons capacities. All evaporators operating at the same temperature of 0 °C. The condenser pressure is 12 bar and the refrigerant exit of the condenser as a sub cool at 40 °C. The discharge from the evaporator is dry saturated vapour *: and the compression is assumed to be isentropic. The cop is
an air compressor of three stage compresses air from 100 kpa to 1000 kpa. calculate the intercooler pressure between the first and second stage
4. A single-stage cylinder air compressor is rated at 6.5 cubic meter per minute of air .Suction conditions are 1 atm and 27 deg C and discharge pressure of 1034 KPa. The compression process follows PV1.35 = C. What is the engine Kw power needed to drive the unit if the combined engine-compressor efficiency is 84%?
During a compression stroke of a cylinder in a diesel engine, the air pressure in the cylinder increases from 1.0×10^5 N/m^2 to 50×10^5 N/m^2, and the temperature increases from 26 ∘C to 517 ∘C. Determine the compression ratio for this engine. V2/V1 =?
Solve it correctly please. I will rate accordingly with 3votes.
The in-cylinder pressure of an engine has been measured at both TDC and BDC, which are P1 = (1.000x10^0) bar at BDC and P2 = (5.000x10^1) bar at TDC. Given that the compression polytropic index is (1.35x10^0), find the compression ratio of the engine.
A four-stage single-acting air compressor running in an atmospheric at 87 kPa and 15°C has a F.A.D of 2.83 m³/min. The section pressure and temperature are 80 kPa and 32 °C respectively, the delivery pressure is to be 7 MPa. The temperature at the start of compression in each stage is 32 °C, take n=1.3 for all stages. calculate: 1. The intermidiate pressure ratio 2. The intermidiate pressure at first, second and third stages in kPa
0/ QI diesel engine has a clearance volume is 0.00025m and bore and stroke of 152.5mm and 200mm, respectively. A charge of air at 100kPa and 20C is taken into the cylinder and compressed adiabatically y=1.4. After combustion at constant pressure the temperature is 1090°C. The expansion which follows is adiabatic. Find a- the temperature and the pressure at the end of compression b- the temperature and pressure after expansion c- the ideal thermal efficiency of the engine (591°Č,4400kPa,227°C,188kPa,0.633)