Question

A flow of moist air in a pipe enters at 20 C, 2 bar, and 60 % relatively humidity with a mass flow rate of 40 kg/s and is cooled at a constant pressure to 15 C. Determine the rate of heat transfer from the moist air stream. Kinetic and potential energy effects are negligible

Name: a flow of moist air in a pipe enters at 20 c 2 bar and 60 relatively humidity with a mass flow rate of 40 kgs and is cooled at a constant pressure to 15 c determine the rate of heat transfer 94637
Uploaded: 2023-02-22T09:47:10-08:00
Duration: 2 min 24 s
Channel: Adi S
Description: a flow of moist air in a pipe enters at 20 c 2 bar and 60 relatively humidity with a mass flow rate of 40 kgs and is cooled at a constant pressure to 15 c determine the rate of heat transfer 94637

          A flow of moist air in a pipe enters at 20 C, 2 bar, and 60 % relatively humidity with a mass flow rate of 40 kg/s and is cooled at a constant pressure to 15 C. Determine the rate of heat transfer from the moist air stream. Kinetic and potential energy effects are negligible

Added by Michael R.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

02/22/2023

Step 1

- Saturation pressure at 20°C, P_ws(20) ≈ 2.339 kPa. - Partial pressure of vapor: Pw1 = RH1 × P_ws(20) = 0.60 × 2.339 ≈ 1.403 kPa. - Humidity ratio: w1 = 0.622 × Pw1 / (P − Pw1) = 0.622 × 1.403 / (200 − 1.403) ≈ 0.00439 kg_v/kg_da. Show more…

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A flow of moist air in a pipe enters at 20 C, 2 bar, and 60 % relatively humidity with a mass flow rate of 40 kg/s and is cooled at a constant pressure to 15 C. Determine the rate of heat transfer from the moist air stream. Kinetic and potential energy effects are negligible