Ask Question, Ask an Expert


Ask Mechanical Engineering Expert

1) prepare down the name of four significant properties of a good refrigerant.

2) prepare down the difference between air conditioning and refrigeration.

3) Describe the function of throttling valve in vapour compression refrigeration system.

4) In vapour compression refrigeration system, where the highest temperature will take place?

5) Vapour absorption system can use low-grade heat energy in a generator. Is true of false?

6) prepare down the name of any four commonly used refrigerants.

7) Describe unit of Refrigeration in detail.

8) Single stage single acting air compressor is used to compress air from 1.013 bar and 25° C to 7 bar according to law PV1.3= C. Bore and stroke of the cylinder are 120mm and 150mm respectively. Compressor runs at 250 rpm. If clearance volume of cylinder is 5% of stroke volume and mechanical efficiency of compressor is 85%, find out volumetric efficiency, power, and mass of air delivered per minute.

9) Two stage singe acting air compressor compresses 2m3 airs from 1 bar and 20° C to 15 bar. Air from low pressure compressor is cooled to 25°C in an intercooler. Compute the minimum power required to run compressor if compression follows PV1.25=C and compressor runs at 400rpm.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M911855

Have any Question? 

Related Questions in Mechanical Engineering

Calculate the maximum steady-state torque that the steam

Calculate the maximum steady-state torque that the steam turbine generator can deliver to an infinite bus with the excitation adjusted to produce rated open-circuit terminal voltage. Sketch the torque versus rotor angle ...

Assuming that the drive discussed in example 14a is

Assuming that the drive discussed in Example 14A is operating at an electrical rotor speed of 200 rad/s, compute the pole locations if the linearizing feedback terms are not used in making up the command voltages.

Sometimes either a pwm ac signal or a dc signal with a

Sometimes either a PWM ac signal or a dc signal with a superimposed constant-frequency ac signal (or dither) is used to drive the valve actuator (torque motor) of a hydraulic actuator. What is the main reason for this? D ...

Application detection of faults in buried lines a buried

Application: Detection of faults in buried lines. A buried cable has water leaking into it, causing a change in its impedance. The impedance of the cable with water is not known. If the same results as in Problem 14.24 a ...

Consider a prospective investment in a project having a

Consider a prospective investment in a project having a first cost of $300,000, operating and maintenance costs of $35,000 per year, and an estimated net disposal value of $50,000 at the end of thirty years. Assume an in ...

Swr on line the transmission line in figure 1531 is given a

SWR on line. The transmission line in Figure 15.31 is given. A general load (Z L = Z 0 + jX L ) is connected as shown in Figure 15.31. The shorted section is made of a different line with a different characteristic imped ...

Members ab and bc are made of steel e 29 x 106 psi with

Members AB and BC are made of steel (E = 29 X 106 psi) with cross-sectional areas of 0.80 in2 and 0.64 in2, respectively. For the loading shown, determine the elongation of (a) member AB, (b) member BC.

Multiaxial statesthe computing project multiaxial states

Multiaxial States The computing project Multiaxial States concerns the analysis of strain and stress at a point in a solid body. The goal is to write a MATLAB program that will allow the computation of the strain associa ...

Write the small-displacement equations for an induction

Write the small-displacement equations for an induction machine with currents as state variables and with a small displacement in ω e where Δ ωe is an input variable. It is clear that the resulting equations are valid fo ...

The use of agent orange defoliants in vietnam has only

The use of Agent Orange defoliants in Vietnam has only recently been officially recognized by the United States as a health hazard as former U.S. soldiers began to show symptoms of ill effects, long after scientists warn ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate