Consider a rigid tank of 2m³ containing pressurized air at 400kPa and 25°C. The tank slowly deflates through a small hole in the tank wall. Due to the loss of air, the pressure drops to 100kPa and due to heat transfer with the environment, the temperature of the air in the tank remains on 25°C. Calculate the the heat transfer. Solution Assuming the tank releases heat to the environment, the energy balance becomes: mouthout + Qout m₁u1 = m 2 U 2

Consider a rigid tank of 2m³ containing pressurized air at 400kPa and 25°C. The tank slowly deflates through a small hole in the tank wall. Due to the loss of air, the pressure drops to 100kPa and due to heat transfer with the environment, the temperature of the air in the tank remains on 25°C. Calculate the the heat transfer. Solution Assuming the tank releases heat to the environment, the energy balance becomes: mouthout + Qout m₁u1 = m 2 U 2

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.21P

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