2. Refrigerant-134a is to be cooled by water in a condenser. The refrigerant enters the condenser with a mass flow rate of 7 kg/min at 1 MPa and 70 °C and leaves at 35 °C. The cooling water enters at 300 kPa and 15 °C and leaves at 25 °C. Neglecting any pressure drops, determine

2. Refrigerant-134a is to be cooled by water in a condenser. The refrigerant enters the condenser with a mass flow rate of 7 kg/min at 1 MPa and 70 °C and leaves at 35 °C. The cooling water enters at 300 kPa and 15 °C and leaves at 25 °C. Neglecting any pressure drops, determine

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

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

mechanical engineering dynamics mmmm

2.
Refrigerant-134a is to be cooled by water in a condenser. The refrigerant
enters the condenser with a mass flow rate of 7 kg/min at 1 MPa and 70 °C and
leaves at 35 °C. The cooling water enters at 300 kPa and 15 °C and leaves at 25
°C. Neglecting any pressure drops, determine
(a) the mass flow rate of the cooling water required
(b) the heat transfer rate from the refrigerant to water.
Water
15°C
300 kPa
R-134a
70°C
1 MPa
35°C
25°C

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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