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Consider a stirred-tank containing water (p-103kgmS, C-Ical ge C) at constant volume, V, of 20 m3...
2. In the constant volume, stirred-tank heater shown in the figure below, the flow rates and...
2. In the constant volume, stirred-tank heater shown in the figure below, the flow rates and material properties are held constant. The tank contains a heating element, which is initially off and the tank is the same temperature as the inlet stream. When t=0, the heater is turned on to a constant heating rate Q. For this material, assume C = C = Cp = Cy. m,Ti P,V,C, T(t) ń, r(t) o a. Write a transient thermal energy balance to...
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cy...
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cylindrical vešsel is jacketed and heated with saturated steam (T) at 212 °F.The steam jacket does not cover either the top or bottom of the tank. The heat capacity of liquid (Cp liquid is near to that of water. The vessel is well stirred and the heat resistance of the jacket is negligible as are the heat...
QUESTION 2 The system shown below is a fermentation tank. In this, water (with dissolved glucose) enters the tank with...
QUESTION 2 The system shown below is a fermentation tank. In this, water (with dissolved glucose) enters the tank with a flow rate of q: [L/min) and a glucose concentration of c [mol/L). During reaction, glucose is converted at a rate of n = -VKc (where n is the moles of glucose converted per minute [mol/min), V is the volume of fluid in the tank (L'), and K is the reaction rate). The tank has a cross-sectional area of A....
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m...
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m I Wc Tomo = -10°C m=0.1 kg/s for t = 10 min Pcout = 18 bar Problem sketch A tank with volume V = 0.2 m2 contains refrigerant R22 at Ttank = -20°C, as shown in the problem sketch. Initially the tank contains V1,1 = 0.05 m2 of liquid R22 and the rest of the tank contains vapor R22. A reversible, adiabatic compressor operating...
Urgent An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure...
Urgent
An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure below shows a proposed system for utilizing the combustion products and its steady state conditions. Heat transfer from the outer surface of the steam generator (heat exchanger) and turbine can be ignored, as can the changes in kinetic and potential energies of the streams. There is no pressure drop through the heat exchanger. The combustion product can be modeled as air as an ideal...
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1)....
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1). The system is heated, causing the piston to rise and encounter a linear spring, as shown in figure. At this point (state 2) the volume is 15 L, the piston diameter is 230 mm, and the spring constant is 115 N/mm. The heating continues, so the piston compresses the spring until all the water becomes saturated vapor (state 3). Neglect the weight of the...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature T. a) Consider entropy S = S(T, V) and derive the equation TdS. Tas = Cvat +T (1) dV. V Show that this equation can be written as follows BT TdS = CydT + PDV where Cv is the thermal capacity at constant volume, B is the isobaric expansiveness and K is isothermal compressibility: b) Consider a gas described by the equation of state...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of 4.2 m3, is heated to a final pressure of 9.4 bar. Assuming the ideal gas model with k = 1.6 for the argon, determine the heat transfer, in kJ. 2.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 223°C from a pressure of 5.4 bar to a pressure of 1.9 bar. Evaluate the work, in kJ/kg. 3.A mass of 4 kilograms...
2. A piston-cylinder device maintain a constant pressure of 800 kPa while containing 20 kg of...
2. A piston-cylinder device maintain a constant pressure of 800 kPa while containing 20 kg of saturated water vapor. The system is heated with a resistance heater for 10 min at a current of 8 A at the standard wall voltage of 120 V. In that time, 3.2 kJ of heat is lost through the walls. What is the temperature at the heated state? 3 5-18E Hydrogen is contained in a piston-cylinder device at 14.7 psia and 15 ft. At...
a. Calculate the dry air and water vapor mass flow rates (lb/min) if the volume flow...
a. Calculate the dry air and water vapor mass flow rates (lb/min) if the volume flow rate is 1,000 cfm, the humidity ratio is 0.025 lbv/lba, and the dry air density is 0.072 Iba/ft3. b. Assume the above air enters an evaporator coil at 90°F where it is cooled in a constant humidity ratio process until reaching the 100 % RH curve ( the temperature at that point is the dew point. The air then keeps dropping in temperature, following...
2. In the constant volume, stirred-tank heater shown in the figure below, the flow rates and material properties are held constant. The tank contains a heating element, which is initially off and the tank is the same temperature as the inlet stream. When t=0, the heater is turned on to a constant heating rate Q. For this material, assume C = C = Cp = Cy. m,Ti P,V,C, T(t) ń, r(t) o a. Write a transient thermal energy balance to...
QUESTION 2 The system shown below is a fermentation tank. In this, water (with dissolved glucose) enters the tank with a flow rate of q: [L/min) and a glucose concentration of c [mol/L). During reaction, glucose is converted at a rate of n = -VKc (where n is the moles of glucose converted per minute [mol/min), V is the volume of fluid in the tank (L'), and K is the reaction rate). The tank has a cross-sectional area of A....
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m I Wc Tomo = -10°C m=0.1 kg/s for t = 10 min Pcout = 18 bar Problem sketch A tank with volume V = 0.2 m2 contains refrigerant R22 at Ttank = -20°C, as shown in the problem sketch. Initially the tank contains V1,1 = 0.05 m2 of liquid R22 and the rest of the tank contains vapor R22. A reversible, adiabatic compressor operating...
Urgent
An industrial process discharges 5,700 m3/min of gaseous products at 200°C, 100 kPa. The figure below shows a proposed system for utilizing the combustion products and its steady state conditions. Heat transfer from the outer surface of the steam generator (heat exchanger) and turbine can be ignored, as can the changes in kinetic and potential energies of the streams. There is no pressure drop through the heat exchanger. The combustion product can be modeled as air as an ideal...
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1). The system is heated, causing the piston to rise and encounter a linear spring, as shown in figure. At this point (state 2) the volume is 15 L, the piston diameter is 230 mm, and the spring constant is 115 N/mm. The heating continues, so the piston compresses the spring until all the water becomes saturated vapor (state 3). Neglect the weight of the...
02) Consider a hydrostatic system represented by the thermodynamic variables volume V, pressure P and temperature T. a) Consider entropy S = S(T, V) and derive the equation TdS. Tas = Cvat +T (1) dV. V Show that this equation can be written as follows BT TdS = CydT + PDV where Cv is the thermal capacity at constant volume, B is the isobaric expansiveness and K is isothermal compressibility: b) Consider a gas described by the equation of state...
2. A piston-cylinder device maintain a constant pressure of 800 kPa while containing 20 kg of saturated water vapor. The system is heated with a resistance heater for 10 min at a current of 8 A at the standard wall voltage of 120 V. In that time, 3.2 kJ of heat is lost through the walls. What is the temperature at the heated state? 3 5-18E Hydrogen is contained in a piston-cylinder device at 14.7 psia and 15 ft. At...
a. Calculate the dry air and water vapor mass flow rates (lb/min) if the volume flow rate is 1,000 cfm, the humidity ratio is 0.025 lbv/lba, and the dry air density is 0.072 Iba/ft3. b. Assume the above air enters an evaporator coil at 90°F where it is cooled in a constant humidity ratio process until reaching the 100 % RH curve ( the temperature at that point is the dew point. The air then keeps dropping in temperature, following...
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