Air enters a compressor operating at steady state

Assignment Help Mechanical Engineering
Reference no: EM13703279

Air enters a compressor operating at steady state at 1 atm. with a specific enthalpy of 290 kJ/kg and exits at a higher pressure with a specific enthalpy of 1023 kJ/kg. The mass flow rate is 0.1 kg/s. If the compressor power input is 77 kW. Neglect flow kinetic and potential energy effects. What is the compressor rate of internal irreversibility (kJ/kg-K) and its isentropic efficiency? Be careful and look up the meaning of isentropic efficiency (emphasis on "isentropic").

Reference no: EM13703279

Questions Cloud

Accrual income versus cash flow for a period : Thomas Book Sales, Inc., supplies textbooks to college and university bookstores. The books are shipped with a proviso that they must be paid for within 30 days but can be returned for a full refund credit within 90 days. In 2014, Thomas shippe..
What is the initial temperature : Consider a piston-cylinder assembly containing 10kg of water. Initially the gas has pressure of 20 bar and occupies a volume of1.0 m3. Under these conditions, water does not behave as an ideal gas. System now undergoes a reversible process in which i..
Cash flows : Is is typical for Jane to plan, monitor, an assess her financial position using cash flows over a given period, typically a month. Jane has a savings account, and her bank loans money at 6 percent per year while it offers short-term investment ..
Determine the specific volume for water vapor : Determine the specific volume for water vapor using the following three methods. Assuming the first method is the most accurate, calculate the % difference of the other two methods against the first method. The temperature of the water is 800 °F and ..
Air enters a compressor operating at steady state : Air enters a compressor operating at steady state at 1 atm. with a specific enthalpy of 290 kJ/kg and exits at a higher pressure with a specific enthalpy of 1023 kJ/kg. The mass flow rate is 0.1 kg/s. If the compressor power input is 77 kW. Neglect f..
For the spring-mass-damper system : For the spring-mass-damper system (refer to Ogata Figure 4.1). (i) Find the equations of motion (the differential equation). Assume m = 1, b = 7, and k = 12. 1(ii) Assuming f(t) is a step function, find the Laplacian transform, X(s). (iii) Find the t..
Frictionless piston-cylinder : A frictionless piston-cylinder contains H2O initially at 1000 kPa and 200C. The system is slowly cooled at constant pressure to 20C. Determine the temperature at which you would expect two phases to exist. Calculate the work for the entire process
Bullock gold mining : Seth Bullock, the owner of Bullock Gold Mining, is evaluating a new gold mine in South Dakota. Dan Dority, the company's geologist, has just finished his analysis of the mine site. He has estimated that the mine would be productive for eight ye..
Bicycle floor pump has a cylindrical tube : A bicycle floor pump has a cylindrical tube with an inside diameter of 1.0 inches. On the pump's upstroke, a diaphragm check valve opens and brings air in at 13.0 psia. The air is then transferred to the tire during the down stroke. The stroke length..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Package design

Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.

  Mechanical engineering questions

Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.

  Automatic control

DOF system and Find the differential equation describing the system

  Write a paper on boyle''s law

Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.

  Verify the law for parallelogram of forces

To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.

  Discharge pressure of the compressor

What is the discharge revised discharge pressure of the compressor.

  The Case for Global Accounting Standards

The role of IFRS in both developing and developed capital markets.

  Wind turbine

Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.

  Advanced design methodologies

8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..

  Design of absorption column and the cooler

Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.

  Determine the maximum total bending moment

Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.

  Force of the water on the gate

Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd