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Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 1 MPa and 300°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure reaches 1 MPa, at which point the valve is closed. Determine the final temperature of the steam in the tank. Assumptions 1 This process can be analyzed as a uniform-flow process since the properties of the steam entering the control volume remain constant during the entire process. 2 The kinetic and potential energies of the streams are negligible, KE=PE= 0. 3 The tank is stationary and thus its kinetic and potential energy changes are zero; that is, AKE = APE = 0 and AEsystem =AUsystem. 4 There are no boundary, electrical, or shaft work interactions involved (W=0). 5 The tank is well insulated and thus there is no heat transfer (Q=0).

Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 1 MPa and 300°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure reaches 1 MPa, at which point the valve is closed. Determine the final temperature of the steam in the tank. Assumptions 1 This process can be analyzed as a uniform-flow process since the properties of the steam entering the control volume remain constant during the entire process. 2 The kinetic and potential energies of the streams are negligible, KE=PE= 0. 3 The tank is stationary and thus its kinetic and potential energy changes are zero; that is, AKE = APE = 0 and AEsystem =AUsystem. 4 There are no boundary, electrical, or shaft work interactions involved (W=0). 5 The tank is well insulated and thus there is no heat transfer (Q=0).

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Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 1 MPa and 300°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure reaches 1 MPa, at which point the valve is closed. Determine the final temperature of the steam in the tank. Assumptions 1 This process can be analyzed as a uniform-flow process since the properties of the steam entering the control volume remain constant during the entire process. 2 The kinetic and potential energies of the streams are negligible, KE=PE= 0. 3 The tank is stationary and thus its kinetic and potential energy changes are zero; that is, AKE = APE = 0 and AEsystem =AUsystem. 4 There are no boundary, electrical, or shaft work interactions involved (W=0). 5 The tank is well insulated and thus there is no heat transfer (Q=0).
Transcribed Image Text:Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries steam at 1 MPa and 300°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure reaches 1 MPa, at which point the valve is closed. Determine the final temperature of the steam in the tank. Assumptions 1 This process can be analyzed as a uniform-flow process since the properties of the steam entering the control volume remain constant during the entire process. 2 The kinetic and potential energies of the streams are negligible, KE=PE= 0. 3 The tank is stationary and thus its kinetic and potential energy changes are zero; that is, AKE = APE = 0 and AEsystem =AUsystem. 4 There are no boundary, electrical, or shaft work interactions involved (W=0). 5 The tank is well insulated and thus there is no heat transfer (Q=0).
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