You are designing a freezer that requires the production of R-134a with T = -30°C and a quality of 40%. The feed temperature, to the throttle, is 30°C. If the diameter of the tube exiting the throttle is 1 cm, calculate the following: a. Upstream diameter [for A(v2) = 0] b. Required upstream condition of the R-134a (pressure and state). c. Pressure drop, AP, across the throttle.

You are designing a freezer that requires the production of R-134a with T = -30°C and a quality of 40%. The feed temperature, to the throttle, is 30°C. If the diameter of the tube exiting the throttle is 1 cm, calculate the following: a. Upstream diameter [for A(v2) = 0] b. Required upstream condition of the R-134a (pressure and state). c. Pressure drop, AP, across the throttle.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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