An air fan operates with P1 = 100 kPa and T1= 25 °C at the inlet, a pressure ratio across the Problem fan of r, = 2.10, a mass flow rate of m = 10 kg/s, and an isentropic efficiency of n = 70%. Complete a thermodynamic analysis of the fan, assuming the specific heats of air are constant with k = 1.4, by finding: (A) The temperature at the fan exit, T2, (B) the work required to operate the fan, Wr, and (C) the rate of entropy production of the fan, Š: Plot the process on a T-s diagram and clearly label states 1, 2s, and 2. gen 2 WE Fan

An air fan operates with P1 = 100 kPa and T1= 25 °C at the inlet, a pressure ratio across the Problem fan of r, = 2.10, a mass flow rate of m = 10 kg/s, and an isentropic efficiency of n = 70%. Complete a thermodynamic analysis of the fan, assuming the specific heats of air are constant with k = 1.4, by finding: (A) The temperature at the fan exit, T2, (B) the work required to operate the fan, Wr, and (C) the rate of entropy production of the fan, Š: Plot the process on a T-s diagram and clearly label states 1, 2s, and 2. gen 2 WE Fan

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

4. A two-stage air compressor with an intercooler takes in air at 14.6 psia at 62 degree F anddelivers it at 502 psia. The temperature of the air leaving the intercooler is 62 degree F.Calculate the work required per pound of air delivered if compression isisentropic, ft-lbf/lbA. (-)108,072 ft-lbf/lb C. (-)168,072 ft-lbf/lbB. (-)118,072 ft-lbf/lb D. (-)128,072 ft-lbf/lb
_.. A steam compressor operates with P₁ = 100 kPa and x1 = 1 at the inlet, a final pressure of 1600 kPa at the exit, a mass flow rate of m = 5 kg/s, and an isentropic efficiency of n = 85%. Complete a thermodynamic analysis of the compressor, using the appropriate data for water, by finding: (A) The isentropic temperature at the exit, T2s, (B) The actual temperature at the compressor exit, T2, and (C) the rate of entropy production of the compressor, $gen. W
Air goes through a Brayton cycle gas turbine, entering the compressor at 11 °C and 108 kPa. When it reaches the turbine inlet, the air is at 1,061 °C and 1.23 MPa. What is the net change in specific enthalpy of the working fluid after going through the compressor and heat addition processes? You may assume that the specific heat capacity c, is a constant 1.005 --1. kJ-kg 1.K1 throughout the whole cycle. Give your answer in kJ-kg1 to one decimal place.
An ideal gas at 15 lbf/in2, 77°F flows horizontally at 516 ft/s into an adiabatic diffuser. It exits at 28 ft/s. Assume the heat capacity of the gas is constant.a. Determine the change in specific enthalpy (in Btu/lbm) and the outlet temperature if the gas is He.b. Repeat for R-125.c. Repeat for ozone (O3), which has a Molecular Mass of 47.9982 and a Cv0 of 0.1538 Btu/(lbm∙°R).
An air standard gas turbine engine operates on an overall pressure ratio of 4 and between the temperature limits of 70 F and 1600 F. The efficiencies of compressor and turbine are 0.82 and 0.92, respectively. To modify, a regenerator of effectiveness 0.65 is added and two stage of compressor with intercooler is inserted and two-stage turbine with reheater is inserted. (a) Assuming constant specific heats, evaluate the compressor work (b) calculate the turbine work (c) calculate the thermal efficiencies Show complete solution on a paper.
The catalogue for a refrigerant 22, four-cylinder, hermetic compressor operating at 29 r/s. a condensing temperature of 40 °C and an evaporating temperature of -4 °C shows a refrigeration capacity of 96.4 kW. At this operating points the motor (whose efficiency is 90 percent) draws 28.9 kW. The bore of the cylinders is 87 mm and the piston stroke is 70 mm. The performance data are based on 8 °C of subcooling of the liquid leaving the condenser. Compute 3.1 the actual volumetric efficiency and 3.2 the compression efficiency.
Determine the mass flow rate of a steam turbine if the inlet conditions are as follow T = 400 C and P = 3000 %3D %3D kPa. The fluid leaves the turbine at 70 kPa and 160 C. The output power of turbine is equal to 1200000 W. O a. 2.8 kg/s O b. 9.32 kg/h O. 12.74 kg/s O d. 10.9 kg/h
Question 6 of 14 -/2 > Referring to the reversible heat pump cycle shown in the figure, p1 = 14.7 Ib/in?, p4 = 41.5 lb/in?, v1 = 12.6 ft³/lb, v4 = 6.0 ft³/lb, and the gas is air obeying the ideal gas model. PI P4 pi V4 Determine TH, in °R, and the coefficient of performance. II
A geothermal power plan has the following data: specific enthalpy at final stage equal to 28.5 KJ/kg, specific enthalpy at well head side equal to 42.8 KJ/kg, mass of the liquid equal to 18 kg. Calculate the work-power capacity of the plant. 457.50 KJ B 357.25 KJ (c) 292.35 KJ 257.40 KJ
During a reversible process there are abstracted 320KJ/s of heat from 1.23kg/s of a certain gas, with Cp=2.232 and Cv= 1.713 Kj/Kg-K, while the temp remains constant at 27 C. the initial pressure is 600 Kpa. For steady flow system (∆KE= 10kj/s) determine;a. Initial and final volume flowb. Change in internal energy and enthalpyc. Change in entropyd. Work.
A four stage single acting air compressor running in an atmospheric at 87 KPa and 15 degrees Celsius has a free air delivery of 2,83 m³/min. The section pressure and temperature are 80 KPa and 32 degrees Celsius respectively, the delivery pressure is to be 7 MPa. The temperature at the start of compression in each stage is 32 degrees Celsius, take n=1,3 for all stages. Calculate 1.the mass flow rate to 3 decimal place in kg/min 2. The power input in KW to 1 decimal place
questão1. Refrigerator 1 simulates an ideal refrigerator and therefore operates on a Carnot cycle using R-134a as the refrigerant at a flow rate of 1.4 kg/sec. The condensing and evaporating temperatures are 30 °C and -10 °C, respectively. To assess the performance of Refrigerator 1, you must submit the report. of the project with the following information: Enthalpies corresponding to the states indicated in the cycle (1, 2, 3 and 4); 1.a. The cooling rate (QL); 1.b. The work provided to the fluid by the compressor; 1.c. The work generated by the turbine; 1.d. The condenser heat rejection rate (QH); 1e. The coefficient of performance of the cycle;