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When using property tables what determines when to use the temperature or pressure tables? Why a...
I dont understand where are these values are coming from. I cant find them in the...
I dont understand where are these values are
coming from. I cant find them in the tables.
S=8.1519?
S=8.0330?
S=8.1538?
400
440
Idont understand how
the problem was solved.
35 kPa and 8-37 Water vapor enters a compressor at 160°C, and leaves at 300 kPa with the same specific entropy as at the inlet. What is the temperature and the specific enthalpy of water at the compressor exit? cQ Search the web.. C Solved: Stei C Chegg Stuc C How...
ih newcon Assignment 4 (Chapter 3 Property Tables) MHE Reador (Chapter 3 Property Tables) Help 100...
ih newcon Assignment 4 (Chapter 3 Property Tables) MHE Reador (Chapter 3 Property Tables) Help 100 kg of R-134a at 200 kPa are contained in a piston-cylinder device whose volume is 12.766 m3. The piston is now moved until the volume is one-half its original size. This is done such that the pressure of the R-134a does not change. Determine the final temperature and the change in the total internal energy of R-134a. Use data from the steam tables The...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P b...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
Using the tables for water, determine the specified property data at the indicated states. (a) At...
Using the tables for water, determine the specified property data at the indicated states. (a) At p = 3 bar, v = 0.35 m3/kg, find T in °C and u in kJ/kg. (b) At T = 320°C, v = 0.33 m3/kg, find p in MPa and u in kJ/kg. (c) At p = 28 MPa, T = 400°C, find v in m3/kg and h in kJ/kg. (d) At T = 10°C, v = 70 m3/kg, find p in kPa and...
Question 1 Using the tables for water determine the specified property data at the indicated state....
Question 1 Using the tables for water determine the specified property data at the indicated state. For H2O at p = 0.7 MPa and v = 0.51 m3/kg, find u in kJ/kg. Note: Round up the answer to 2 decimal places. Question 2 Using the tables for water determine the specified property data at the indicated state. For H2O at p = 10 MPa and u = 990 kJ/kg, find h in kJ/kg. Note: Round up the answer to 2...
2. (a) Is the pressure of a system an extensive or intensive property? How? (3) (b)...
2. (a) Is the pressure of a system an extensive or intensive property? How? (3) (b) An 80-L vessel contains 4 kg of water at a pressure of 160 kPa. Determine (a) the temperature of the water, (b) the quality, (c) the enthalpy (d) the volume occupied by the vapor phase. (7)
Determine the specific entropy (kJ/kg-K) of superheated water using the table below. The pressure and temperature...
Determine the specific entropy (kJ/kg-K) of superheated water using the table below. The pressure and temperature are given as P = 398.19 kPa and T = 260°C, respectively. Note: Give your answer to four decimal places. Properties of Superheated Water Vapor Tv u hs v u hs °C m/kg kJ/kg kJ/kg kJ/kg-K °C m®/kg kJ/kg kJ/kg kJ/kg-K P= 3.0 bar P= 4.0 bar Tsar= 133.55 °C Tsar= 143.63 °C Sat. 0.6058 2543.1 2724.8 6.9911 Sat. 0.4625 2553.1 2738.1 6.8951 150...
Hydrogen is used as a working fluid in a gas turbine cycle. The pressure and temperature...
Hydrogen is used as a working fluid in a gas turbine cycle. The pressure and temperature of hydrogen at the turbine inlet are 1000 kPa and 400 ◦C, respectively. The outlet pressure is 200 kPa. The expansion in the turbine is isentropic. Kinetic and potential energy changes are negligible. Properties of hydrogen can be found in the NIST–JANAF Thermochemical Tables, http://kinetics.nist.gov/janaf/. Questions: (a) Calculate the hydrogen temperature at the turbine outlet. (b) Calculate the work developed by the turbine, in...
QUESTION 6 At a pressure of 4 Mpa, the temperature at which liquid water boils (using...
QUESTION 6 At a pressure of 4 Mpa, the temperature at which liquid water boils (using tables) is: Saturated warter- Pressure table TA TABLE A-6 Specific volume, m/kg Superheated water (Continued) Sat. Sat. Sat. C m/kg kJ/kg kJkg kJ/kg K Press., temp., liquid, vapor P- 4.0 MPa (250.35 C) Sat. 0.04978 2601.7 2800.8 6.0696 3500 242.56 0.001235 0.057061 275 0.05461 2668.9 2887.3 6.2312 4000 250.35 0.001252 0.049779 300 0.05887 2726.2 2961.7 6.3639 5000 263.94 0.001286 0.039448 350 0.06647 2827.4 3093.3...
I dont understand where are these values are
coming from. I cant find them in the tables.
S=8.1519?
S=8.0330?
S=8.1538?
400
440
Idont understand how
the problem was solved.
35 kPa and 8-37 Water vapor enters a compressor at 160°C, and leaves at 300 kPa with the same specific entropy as at the inlet. What is the temperature and the specific enthalpy of water at the compressor exit? cQ Search the web.. C Solved: Stei C Chegg Stuc C How...
ih newcon Assignment 4 (Chapter 3 Property Tables) MHE Reador (Chapter 3 Property Tables) Help 100 kg of R-134a at 200 kPa are contained in a piston-cylinder device whose volume is 12.766 m3. The piston is now moved until the volume is one-half its original size. This is done such that the pressure of the R-134a does not change. Determine the final temperature and the change in the total internal energy of R-134a. Use data from the steam tables The...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
2. (a) Is the pressure of a system an extensive or intensive property? How? (3) (b) An 80-L vessel contains 4 kg of water at a pressure of 160 kPa. Determine (a) the temperature of the water, (b) the quality, (c) the enthalpy (d) the volume occupied by the vapor phase. (7)
Determine the specific entropy (kJ/kg-K) of superheated water using the table below. The pressure and temperature are given as P = 398.19 kPa and T = 260°C, respectively. Note: Give your answer to four decimal places. Properties of Superheated Water Vapor Tv u hs v u hs °C m/kg kJ/kg kJ/kg kJ/kg-K °C m®/kg kJ/kg kJ/kg kJ/kg-K P= 3.0 bar P= 4.0 bar Tsar= 133.55 °C Tsar= 143.63 °C Sat. 0.6058 2543.1 2724.8 6.9911 Sat. 0.4625 2553.1 2738.1 6.8951 150...
QUESTION 6 At a pressure of 4 Mpa, the temperature at which liquid water boils (using tables) is: Saturated warter- Pressure table TA TABLE A-6 Specific volume, m/kg Superheated water (Continued) Sat. Sat. Sat. C m/kg kJ/kg kJkg kJ/kg K Press., temp., liquid, vapor P- 4.0 MPa (250.35 C) Sat. 0.04978 2601.7 2800.8 6.0696 3500 242.56 0.001235 0.057061 275 0.05461 2668.9 2887.3 6.2312 4000 250.35 0.001252 0.049779 300 0.05887 2726.2 2961.7 6.3639 5000 263.94 0.001286 0.039448 350 0.06647 2827.4 3093.3...
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