Engineering, 19.05.2020 20:00 newjersey4015

In a single pass heat exchanger of an air conditioning system, warm air flows over a pipe carrying refrigerant R134a. The air, with a mass flow rate of 56.2 kg/min and at 100 kPa, needs to be cooled down from 37 °C to 27 °C. The refrigerant enters the tubes at 500 kPa with a quality of 20% and exits at 500 kPa, 20 °C. If there is no heat transfer between the heat exchanger and the surroundings, determine the amount of the refrigerant necessary to cool down the air, in kg/min.

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, margaret1758

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Answers: 1

continue

Engineering, 04.07.2019 08:10, doggo242

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

Answers: 1

continue

Engineering, 04.07.2019 18:10, dval1146

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

Answers: 1

continue

Engineering, 04.07.2019 18:10, 0436500

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

Answers: 1

continue

You know the right answer?

In a single pass heat exchanger of an air conditioning system, warm air flows over a pipe carrying r...