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2. For this problem use the steam tables in the American Engineering System (on vula). A...
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.
Tutorial 1: Working Fluids and Vapour Tables Question 1: Calculate the specific volume, specific enthalpy and...
Tutorial 1: Working Fluids and Vapour Tables Question 1: Calculate the specific volume, specific enthalpy and specific internal energy of wet steam at 18 bar and a dryness fraction of 0.9 Question 2: Calculate the dryness fraction, specific volume and specific internal energy of steam at 7 bar and with a specific enthalpy of 2600kJ/kg Question 3: Steam at 110 bar was found to have a specific volume of 0.0196 m²/kg. Calculate the temperature, specific enthalpy and specific internal energy...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses hea...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
1)1000 W of power is supplied to an electric motor, which has an efficiency of 95%. The motor's s...
1)1000 W of power is supplied to an electric motor, which has an efficiency of 95%. The motor's shaft drives a water pump, which is 70% efficient. The system is steady. Determine the rate at which the mechanical energy of the fluid increases between the inlet and outlet of the pump, and where the difference in energy went. 2)The quality of a saturated liquid-vapour mixture is 100% when the fluid is comprised entirely of Select one: a. Compressed liquid b....
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water....
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water. A steady flow of saturated liquid water enters at 1 at a pressure of P, = 200 kPa and passes through a valve which reduces the pressure to P, = 100 kPa. The resulting mixture enters a separation tank, from which saturated vapour at 4 flows out to a compressor which compresses it to Ps = 300 kPa, while saturated liquid at 3 is...
When water changes from the liquid phase to the gaseous (vapor) phase, energy is required for the H2O molecules to escape their mutual molecular attraction (the internal energy change ufg in the steam...
When water changes from the liquid phase to the gaseous (vapor) phase, energy is required for the H2O molecules to escape their mutual molecular attraction (the internal energy change ufg in the steam tables) and for the volume expansion (P·vfg). The total heat of vaporization for the phase change is represented by the enthalpy change hfg in the steam tables. Use the steam tables to calculate the fractions of energy for the volume expansion and for the molecules to escape...
PLEASE ANSWER #6 PLEASE ANSWER #6 Figure 1 presents a seawater cooled steam ejector refrigeration/Heat Pump...
PLEASE ANSWER #6
PLEASE ANSWER #6
Figure 1 presents a seawater cooled steam ejector refrigeration/Heat Pump System for Naval Surface Ship Applications. A Steam Ejector Refrigeration System is thermally driven heating and cooling technology by changing the pressure to control the boiling temperature which will enhance evaporation of fluid to realize cooling purpose. A heat pump system is to utilize the phase change of fluids to realize heating and cooling purpose. Please answer following questions: exhaust gas boiler nozzle section...
90 Chapter 2 PROPERTIES OF SUBSTANCES for all Pages Due 03/19/2020 start b. x=0.2, P =...
90 Chapter 2 PROPERTIES OF SUBSTANCES for all Pages Due 03/19/2020 start b. x=0.2, P = 100 kPa C C c. P-2 MPa, T = 400°C 2-41) Calculate the mass of water contained in a 0.6-mº vessel under the following conditions: a. 100 kPa, 150°C b. 300 kPa, 600°C c. 50 kPa, 81°C d. 400 kPa, saturated vapor e. 400 kPa, saturated liquid f. At the critical state 2-42. Determine the internal energy of H.O at 10 MPa and 450°C....
Figure 5.3: A typical enthalpy- entropy phase diagranm nt Exercise 5 nt mixtu uai1. At 450'F...
Figure 5.3: A typical enthalpy- entropy phase diagranm nt Exercise 5 nt mixtu uai1. At 450'F a mixture of saturated steam and liquid water exists in equilibrium. If the specific volume of the mixture is 0.6673 ft/Ibm, calculate from data in the stream tables a. percent mixture or quality b. enthalpy of the mixture in Btu/lbm, and c. entropy of the mixture, in Btu/Ibm R gram 2. nCHio is stored as a compressed fluid at 310F and 56 atm pressure....
Question completion Status QUESTION 1 A piston cylinder device contain: 0.8 kg of steam at 250°C...
Question completion Status QUESTION 1 A piston cylinder device contain: 0.8 kg of steam at 250°C and 1 MPa (1 Mpa 1000 kPa). Steam is cooled at constant pssure until one half of the mass conden: a. What is the mass of vapour in the mixture and the value of quality x of the mixture b. Use the tables to find the initial specific volume vi and initial volume V1 cFind the value of the final volume V2 after condensation...
Tutorial 1: Working Fluids and Vapour Tables Question 1: Calculate the specific volume, specific enthalpy and specific internal energy of wet steam at 18 bar and a dryness fraction of 0.9 Question 2: Calculate the dryness fraction, specific volume and specific internal energy of steam at 7 bar and with a specific enthalpy of 2600kJ/kg Question 3: Steam at 110 bar was found to have a specific volume of 0.0196 m²/kg. Calculate the temperature, specific enthalpy and specific internal energy...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
5.(14 marks total) The sketch shows a system for producing superheated steam from hot liquid water. A steady flow of saturated liquid water enters at 1 at a pressure of P, = 200 kPa and passes through a valve which reduces the pressure to P, = 100 kPa. The resulting mixture enters a separation tank, from which saturated vapour at 4 flows out to a compressor which compresses it to Ps = 300 kPa, while saturated liquid at 3 is...
PLEASE ANSWER #6
PLEASE ANSWER #6
Figure 1 presents a seawater cooled steam ejector refrigeration/Heat Pump System for Naval Surface Ship Applications. A Steam Ejector Refrigeration System is thermally driven heating and cooling technology by changing the pressure to control the boiling temperature which will enhance evaporation of fluid to realize cooling purpose. A heat pump system is to utilize the phase change of fluids to realize heating and cooling purpose. Please answer following questions: exhaust gas boiler nozzle section...
90 Chapter 2 PROPERTIES OF SUBSTANCES for all Pages Due 03/19/2020 start b. x=0.2, P = 100 kPa C C c. P-2 MPa, T = 400°C 2-41) Calculate the mass of water contained in a 0.6-mº vessel under the following conditions: a. 100 kPa, 150°C b. 300 kPa, 600°C c. 50 kPa, 81°C d. 400 kPa, saturated vapor e. 400 kPa, saturated liquid f. At the critical state 2-42. Determine the internal energy of H.O at 10 MPa and 450°C....
Figure 5.3: A typical enthalpy- entropy phase diagranm nt Exercise 5 nt mixtu uai1. At 450'F a mixture of saturated steam and liquid water exists in equilibrium. If the specific volume of the mixture is 0.6673 ft/Ibm, calculate from data in the stream tables a. percent mixture or quality b. enthalpy of the mixture in Btu/lbm, and c. entropy of the mixture, in Btu/Ibm R gram 2. nCHio is stored as a compressed fluid at 310F and 56 atm pressure....
Question completion Status QUESTION 1 A piston cylinder device contain: 0.8 kg of steam at 250°C and 1 MPa (1 Mpa 1000 kPa). Steam is cooled at constant pssure until one half of the mass conden: a. What is the mass of vapour in the mixture and the value of quality x of the mixture b. Use the tables to find the initial specific volume vi and initial volume V1 cFind the value of the final volume V2 after condensation...
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