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Tutorial 1: Working Fluids and Vapour Tables Question 1: Calculate the specific volume, specific enthalpy and...
2. For this problem use the steam tables in the American Engineering System (on vula). A...
2. For this problem use the steam tables in the American Engineering System (on vula). A vessel contains 0.15 lb of saturated water at a pressure of 4.970 lb/in. If the total volume of the container is 2.8 ft", determine the following properties of the system: a. Specific volume b. Quality c. Specific internal energy d. Specific enthalpy e. Mass of water in the liquid phase and mass of water in the vapour phase.
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100 kPa pressure. The gas is now compressed to a final temperature of 95oC at 250 kPa. This compression is polytropic and follows PVn=constant. a. Determine how much boundary work was added to the gas [in kJ] b. How much heat was added or removed from this system during this process? [in kJ]
Calculate the change in internal energy, change in enthalpy, work done, and the heat supplied in...
Calculate the change in internal energy, change in enthalpy, work done, and the heat supplied in the following processes: (a) An ideal gas is expanded from 5 bar to 4 bar isothermally at 600 K (b) An ideal gas contained in a vessel of 0.1 m3 capacity is initially at 1 bar and 298 K. It is heated at constant volume to 400 K. (Assume that Cp = 30 J.mol-1.K-1)
A piston–cylinder device contains steam initially at 1 MPa, 450°C. Steam is allowed to cool at...
A piston–cylinder device contains steam initially at 1 MPa, 450°C. Steam is allowed to cool at constant pressure until it becomes saturated vapor. Find the internal energy (u) on the initial and final states. Find the specific volume (v) on the initial and final states. Find the boundary work associated with the transformation. Write the conservation of energy equation, and simplify it. Deduce the amount of heat transferred per unit mass. Represent the process on P-v diagram, showing the saturation...
If we wish to use the steam tables to ascertain internal energy, which of the following...
If we wish to use the steam tables to ascertain internal energy, which of the following pieces of information would be sufficient for the task if the system is a rigid vessel containing water in equilibrium in one of the three saturated phases? 1.) Temperature and specific volume at the given state. 2.) Temperature and pressure at the given state. 3.) Pressure and quality at the given state. 4.) Pressure and enthalpy at the given state.
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water...
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water vapor at 400.0 kPa. Heat is now slowly transferred to the steam until the volume doubles. Consider the expansion a two step process. First, constant volume heating occurs until the pressure reaches 500.0 kPa (State 2). Finally, a constant pressure expansion occurs resulting in the doubling of the initial volume (State 3) Note: The IUPAC sign convention for work is used. Work into the...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of nitrogen gas at 130 kPa and 180 C. The nitrogen is now expanded to a pressure of 80 kPa polytropically with a polytropic exponent whose value is equal to the specific heat ratio (called isentropic expansion). Determine the final temperature and the boundary work done during this process.
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
Problem 1 A piston-cylinder system contains a paddle stirrer (a paddle with blades that can stir...
Problem 1 A piston-cylinder system contains a paddle stirrer (a paddle with blades that can stir the contents of the cylinder). The cylinder contains a gas that is initially at 150 kPa and occupies a volume of 0.196 m3 . The piston is unrestrained and has a cross-sectional area of 0.196 m2 . 20 kJ of electrical energy is supplied to the paddle stirrer, resulting in the piston moving up by 0.2 m. During this process, 5.27 kJ of heat...
BEng 3M - 2019/20:SEMI THERMODYNAMICS II (ENG3002) Tutorial: Topic #2 - Gibbs Eqns and Maxwell Relations...
BEng 3M - 2019/20:SEMI THERMODYNAMICS II (ENG3002) Tutorial: Topic #2 - Gibbs Eqns and Maxwell Relations QUESTION 1. Pressure (bar) Temperature 60 80 100 5 6 7 8 Cylinder Cylinder Cylinder Cylinder Volume Volume Volume Volume (m (m) m ( m ) 0.2695 0.22150 1872 0.1614 0.2923 0.2412 0.20470 1772 031410 259002210 1919 0 33540277002367 0 2059 03562 0.2955 02521 0 2105 037680.31290 2671 0 2328 0.3973 0 33 0.282 02452 0.4176 03470 2967 0 2589 0.4377036390.31130 2717 140 160...
2. For this problem use the steam tables in the American Engineering System (on vula). A vessel contains 0.15 lb of saturated water at a pressure of 4.970 lb/in. If the total volume of the container is 2.8 ft", determine the following properties of the system: a. Specific volume b. Quality c. Specific internal energy d. Specific enthalpy e. Mass of water in the liquid phase and mass of water in the vapour phase.
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water vapor at 400.0 kPa. Heat is now slowly transferred to the steam until the volume doubles. Consider the expansion a two step process. First, constant volume heating occurs until the pressure reaches 500.0 kPa (State 2). Finally, a constant pressure expansion occurs resulting in the doubling of the initial volume (State 3) Note: The IUPAC sign convention for work is used. Work into the...
1. Question 4-7 from Thermodynamics ed. 7: A piston- cylinder device initially contains 0.07 m' of nitrogen gas at 130 kPa and 180 C. The nitrogen is now expanded to a pressure of 80 kPa polytropically with a polytropic exponent whose value is equal to the specific heat ratio (called isentropic expansion). Determine the final temperature and the boundary work done during this process.
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
BEng 3M - 2019/20:SEMI THERMODYNAMICS II (ENG3002) Tutorial: Topic #2 - Gibbs Eqns and Maxwell Relations QUESTION 1. Pressure (bar) Temperature 60 80 100 5 6 7 8 Cylinder Cylinder Cylinder Cylinder Volume Volume Volume Volume (m (m) m ( m ) 0.2695 0.22150 1872 0.1614 0.2923 0.2412 0.20470 1772 031410 259002210 1919 0 33540277002367 0 2059 03562 0.2955 02521 0 2105 037680.31290 2671 0 2328 0.3973 0 33 0.282 02452 0.4176 03470 2967 0 2589 0.4377036390.31130 2717 140 160...
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