Positive displacement and dynamic air compressors

Assignment Help Mechanical Engineering
Reference no: EM13191602

1. With reference to basic constructional features, contrast the methods of compression employed by positive displacement and dynamic air compressors.

2. An item of plant requires 2 m3 min-t of pulsation-free and oil-free compressed air supplied at a pressure of 7 bar. Select and size a suitable type of machine with regard to output FAD (free air delivered) and quality of air supply.

3. Air is drawn into a compressor at normal temperature and pressure (N.TP.) and compressed to a pressure of 6 bar gauge. After compression the air is delivered at 1.2 m3 min-t and cooled to a temperature of 30°C, at which point condensate is collected at the rate of 2 litres per hour. Estimate the FAD (N.TP.) of the compressor, and the relative humidity of the air entering the compressor.

Reference no: EM13191602

Questions Cloud

Administrative agencies must be open to public observations : With some exceptions, every portion of every meeting of the environmental Protection Agency and other federal administrative agencies must be open to public observations under:
What was the error in the directors recommendation : The director of a nonprofit foundation that sponsors 8-week summer institutes for graduate students analyzed the costs and expected revenues for the next summer institute and recommended that the session be canceled. In her analysis she included a..
Consumer products : Consumer products, Inc. distributes it merchandise on an interstate basis to local stores. Under the commerce clause, COngress has the power to regulate;
By how much can the money supply be expanded : First bank has total deposits of $2,000,000 legal reserves of $220,000. a. If the reserve requirement is 10 percent, what is the maximum loan that First bank can make, and what is the maximum increase in the money supply based on First bank's rese..
Positive displacement and dynamic air compressors : With reference to basic constructional features, contrast the methods of compression employed by positive displacement and dynamic air compressors.
What is the maximum loan that the bank a can make : Yesterday bank A had no excess reserves. Today it received a new deposit of $5000. a) If the bank maintains a reserve requirement of 2 percent, what is the maximum loan that the bank A can make
Narrowly defined chemical composition : Why does the definition of the term mineral include “a narrowly defined chemical composition” rather than a statement such as “a specific chemical composition?
Do the opportunity costs of borrowing and using differ : Lenders perceive that you are risky, so you must pay 12 percent annual interest to borrow from one of them. You only receive 6 percent on funds you have deposited in the bank. Do the opportunity costs of borrowing and using your own funds differ i..
Find the demand curve for a perfectly competitive firm : Which of the following factors would most likely explain why a U.S. company would choose to operate in the U.S. despite much lower wages in Mexico.If a monopolist is earning profits, then price is greater than average total cost.

Reviews

Write a Review

 

Mechanical Engineering Questions & Answers

  Explain thin walled box beam with end load at an angle

Thin walled box beam with end load at an angle. A box beam made from an extruded aluminium ally having 5 414 mm wall thickness is loaded by an inclined force P=100 N

  Determine the failure envelope and the non-failure region

Determine the failure envelope and the non-failure region in the sigma_y - tau_xy plane using Tsai-Hill theory for the following cases

  Determine the average luminous exitance

Determine the average luminous exitance of the opaque interior surfaces of the room - what is the reflected component at this point?

  Ways to ensure relevant base and safety loads

All calculations and assumptions must be provided together with a full explanation of all the terms

  Determine heat flow heat flow through a uniform wall

Determine heat flow, Heat flow through a uniform wall will: a) increase as the thermal resistance increases b) increase as the thickness of the wall increases

  Explain force exerted on the body by the fluid motion

In flows past solid bodies, the force exerted on the body by the fluid motion depends upon the fluid velocity u, the density p, the viscosity

  Newtons law to find the tension in the string

draw a free body diagram for each of the two situations. use the "radial" Newton's law to find the tension in the string at each of these situations.

  Calculate shaking force and shaking torque

find Torque at O2, and forces at O2, A and B, also calculate shaking force and shaking torque. MEE40003- Machine Dynamics

  Explain a particular grade of nitinol sma is capable

A particular grade of Nitinol SMA is capable of upto 6% strain recovery and develops an internal restoration stress of upto 300 MN m-2. Estimate the amount of force and distance of travel that could be triggered by warming a rod

  Pumps and heat recovery

Energy in the home, personal energy use and home energy efficiency. Efficient use of ‘waste' heat and renewable heat sources.

  A heat pump with a coefficient of performance

A heat pump with a COP (coefficient of performance) of 2.8 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power

  Determine the crack growth for cycle

Determine the crack growth for cycle #3 using Wheeler's retardation model (m=2)-finite width correction factor for SIF

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