5.0 A 140 x 140-mm, twin-cylinder, single acting refrigerant- 12 compressor running at 600 rpm carries a refrigeration capacity of 40 kW while operating at 350 kPa suction and 1300 kPa discharge pressures. Assuming the same load to be carried with the same volumetric efficiency and if the discharge pressure shall be raised to 1400 kPa, a) what is the percent increase in mass of R-12 (b)What will be the new volumetric displacement of the compressor in m/sec ?;(c)At what speed should the compressor be run?

5.0 A 140 x 140-mm, twin-cylinder, single acting refrigerant- 12 compressor running at 600 rpm carries a refrigeration capacity of 40 kW while operating at 350 kPa suction and 1300 kPa discharge pressures. Assuming the same load to be carried with the same volumetric efficiency and if the discharge pressure shall be raised to 1400 kPa, a) what is the percent increase in mass of R-12 (b)What will be the new volumetric displacement of the compressor in m/sec ?;(c)At what speed should the compressor be run?

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

Related questions

Q: 7. A pressure reducing valve receives 5 kg/s of steam at 2MPa with a specific volume of 0.1255 m³/kg…

A: Given: Mass flow rate of the steam→m=5 Kg/s Initial pressure →P1=2 MPa=2000 KPa Initial specific…

Q: a. Water flowing at 2.6 KL/s is taken from a river and delivered to a turbine 100m lower than the…

A: Given data:flow rate, Q = 2.6 kL/s = 2.6 m3/sHeight of the turbine, h = 100 mEfficiency = 40 % =…

Q: 2. A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the…

Q: a alll Asiacell The unit of temperature in S.I.-17 * units The unit of temperature in S.I. units is…

A: Note: - As per the guidelines of Bartleby, only one question is allowed to answer so please submit…

Q: Air with a pressure of 0.1 MPa and a temperature of 25oC with a flow rate of 5.29 kg/minute enters a…

Q: A refrigeration system with a capacity of 15 tons of refrigeration, operates at 150 kPa in the…

Q: The air entering the turbine with 1200 K and 1200 kPa expands to 100 kPa pressure in two stages.…

A: Given Data Turbine Inlet:1200 K Two stage expansion process P1=1200 kPa, P2=350 kPa, P4=100 kPa

Q: A refrigerant 12 refrigeration system requires a load of 54 kW at an evaporator pressure of 270 kPa…

Q: A refrigeration cycle operates at a flowrate of 2 lbm/hr, the enthalpy change is h = 4000 BTU/lbm,…

Q: Problem 5: The compressor used in a refrigeration cycle takes in saturated R-134a vapor at a…

A: The mass flow rate m˙=0.048 kgs The power requirement W=1450 W The entry pressure of the R-134a in…

Q: Air with a pressure of 0.1 MPa and a temperature of 25oC with a flow rate of 5.29 kg/minute enters a…

A: NOTE:- As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Question

5.0 A 140 x 140-mm, twin-cylinder, single acting refrigerant- 12 compressor running at 600 rpm carries
a refrigeration capacity of 40 kW while operating at 350 kPa suction and 1300 kPa discharge pressures.
, Assuming the same load to be carried with the same volumetric efficiency and if the discharge
pressure shall be raised to 1400 kPa, a) what is the percent increase in mass of R-12 (b)What
will be the new volumetric displacement of the compressor
the compressor be run?
in m/sec ?;(c)At what speed should

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Cn yu do question 6
What is different in between Turbines and Compressors.
Q4: a four cylinder 75 mm bore and 75 mm stroke compressor run at 25 rps and has a volumetric efficiency of 75%. If the volume of the suction gas is 0.248 m3/kg and the machine has operating efficiency of 75%, what power will required on simple saturation cycle when difference between enthalpies of the suction and discharge gases is 150kJ/kg. If the refrigeration effect is 1087 kJ/kg what is the output in kW of refrigeration. State the COP?
7. In a refrigeration plant ammonia enters the expansion valve as a liquid at 32°C and leaves the evaporator as a dry saturated vapour. The pressure limits are 158.8kPa and 1389kPa. The compression may be assumed to be isentropic. The single acting compressor of 130mm bore, 150mm stroke, and 90% mechanical efficiency runs at a rotational speed of 240rpm. Calculate: (a). refrigerant volumetric flowrate (b). cooling load (c). power input to the compressor
A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the evaporator, while in the condenser it is 850 kPa. If R-134a refrigerant is in a saturated state, calculate the theoretical power required to operate the compressor. Compressor power = ... W.
A refrigeration system with a capacity of 10 tons of refrigeration, operates at 210 kPa in the evaporator, while in the condenser it is 800 kPa. If R-134a refrigerant is in a saturated state, calculate the theoretical power required to operate the compressor. Compressor power = .... kW
A refrigeration system with a capacity of 15 tons of refrigeration, operates at 150 kPa in the evaporator, while in the condenser it is 1590 kPa. If refrigerant R-717 is saturated, calculate the theoretical power required to operate the compressor. Compressor Power = kW.
Can yu do question 2
8. A turbine passes 67.5 kg/h of steam at 200 km/h at 8 MPa and leaves at 0.5 MPa as wet steam with a speed of 90 km/h and a specific volume of 0.189 m3/kg. d. What must be the steam input conditions (T,H) to turn on a device that consumes 30 kW? and. What is the mass and volumetric flow rate of the water at the outlet? F. What is the input and output area?
A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure& temperature is found to be 14.7psi & 546R. The axial flow compressor provides apressure ratio of 14 to 1. Temperature at the turbine inlet is 2000R. The mass flowrate of airinside the engine is 133 lbm/s. Determine the following:a. T-S diagramb. Pressure & temperature at each statec. Thrust force (lbf)d. Propulsive power developed (BTU/min)e. Propulsive Efficiency
Hello, Please solve this problem, and explain a little bit for me to review. Thank you very much
A refrigeration cycle using air is shown in fig. E. Air enters the compressor at atmospheric pressure (?3 =14.7 psia) and its pressure is raised at ?4 = 210 psia. The temperatures at points 2, 3, 5, 6 are ?2 = −50 ℉, ?3 = 55 ℉, ?5 = 65 ℉ , ?6 = −45 ℉ . Consider the expander as a turbine. Take into account that the expander is connected to the compressor. Consider air to be an ideal gas throughout the cycle with a heat capacity at constant pressure independent of the temperature. Determine a mean heat capacity based on the temperatures of the cycle and the data in table 2.2.2 The expander and the compressor operate ideally. (a) Is this a one or a two stage refrigeration cycle? Please, explain! [one sentence is fine] (b) Take into consideration no pressure drop in the evaporator, heat exchanger and condenser. Then, estimate the pressure at points 1, 2, 5, 6. (c) Calculate the temperature at the exit of the expander/compressor (?1/?4 ). (d) Calculate the coefficient of performance of the…