Question: Refrigerant-12 enters a compressor operating at steady state as saturated vapor at -7oC and exits at 1000 kPa. The compressor has an isentropic efficiency of

Refrigerant-12 enters a compressor operating at steady state as saturated vapor at -7oC and exits at 1000 kPa. The compressor has an isentropic efficiency of 75%. Ignoring the heat transfer between the compressor and its surrounding as well as ke and pe, determine
(a) The exit temperature.
(b) Work input in kJ per kg of refrigerant flow.

Step by Step Solution

★★★★★

3.56 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

State1 given T 1 x 1 State2 given p 2 s ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

861-ME-T (7184).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

Saturated vapor of R-134a enters a compressor, operating at steady state at 160 kPa with a volume flow rate of 10 L/min. The specific entropy remains constant along the flow. Determine (a) The exit...

Repeat the above problem (3-3-68 [DJ]) with refrigerant-12 as the working fluid. Problem (3-3-68) Saturated vapor of R-134a enters a compressor, operating at steady state at 160 kPa with a volume...

An equimolar mixture of oxygen and nitrogen enters a compressor operating at steady state at 10 bar, 220 K with a mass flow rate (m) of 1 kg/s. The mixture exits the compressor at 60 bar, 400 K with...

1 1 . Refrigerant 1 3 4 a enters a compressor operating at steady state a saturated vapor at - 4 C and exits at a pressure of 8 bar. There is significant heat transfer with the surroundings. and...

Refrigerant 1 3 4 a at a rate of 0 . 9 lb / s enters a compressor operating at steady state as saturated vapor at 4 0 psia and exits at a pressure of 1 8 0 psia. There is no significant heat transfer...

Refrigerant 134a enters a compressor operating at steady state as saturated vapor at 0.12 MPa and exits at 1.2 MPa and 76.96C at a mass flow rate of 0.168 kg/s. As the refrigerant passes through the...

The refrigerants saturation temperature is the temperature at which it transforms from a liquid to a vapor state. Its boiling point is the same as its saturation temperature. Saturated...

Refrigerant 134a at p1 = 30 lbf/in2, T1 = 40oF enters a compressor operating at steady state with a mass flow rate of 175 lb/h and exits as saturated vapor at p2 = 160 lbf/in2. Heat transfer occurs...

2.7 Air at 40F, 1 atm enters a compressor operating at steady state and exits at 620F, 8.6 atm. Ignoring heat transfer with the surroundings and kinetic and potential energy effects, determine (a)...

Given: Assume: Find: R-134a enters a well-insulated compressor operating at steady state at a rate of 15 lb/min as a saturated vapor at 20 psi and exits at a pressure of 120 psi. Changes in kinetic...

In the Otto cycle all the heat transfer qH occurs at constant volume. It is more realistic to assume that part of qH occurs after the piston has started its downwards motion in the expansion stroke....

East Cost Trucking provides specialized shipping services in major cities along the east cost of the United States. The company currently has facilities in Boston, New York, Philadelphia, Baltimore,...

Question 1 6 options: Use the following information to answer the two questions below. State of Prob. of the Rate of return if state occurs the economy state of economy Stock A Stock B Boom 0 . 4 0 0...

Researchers use (20.31) to anticipate the direction of bias or inconsistency in OLS. (a) What would Campbell and Mankiw (1989) expect the bias to be in the OLS estimator of $$\beta_{02}$$ in (21.2),...

An average person produces 0.25 kg of moisture while taking a shower and 0.05 kg while bathing in a tub. Consider a family of four who each shower once a day in a bathroom that is not ventilated....

An average (1.82 kg or 4.0 lbm) chicken has a basal metabolic rate of 5.47 W and an average metabolic rate of 10.2 W (3.78 W sensible and 6.42 W latent) during normal activity. If there are 100...

Air enters a heating section at 95 kPa, 12oC, and 30 percent relative humidity at a rate of 6m3/min, and it leaves at 25oC. Determine (a) The rate of heat transfer in the heating section. (b) The...

Marston Manufacturing Company is considering a project that requires an investment in new equipment of $3, 400,000, with an additional $170,000 in shipping and installation costs. Marston estimates...

1 1 1 point Calculate the required rate of return for Forrester Inc., assuming that ( 1 ) investors expect a 4 . 0 % rate of inflation in the future, ( 2 ) the real risk - free rate is 3 . 0 % , ( 3...

You own 5 0 0 shares of common stock in a firm that has two million shares outstanding. The firm announces a plan to sell an additional 5 0 0 , 0 0 0 shares through a rights offering. a . How many...