What is the maximum work (in Btu/lb) obtainable from an adiabatic expansion of ethylene gas through...
What is the maximum work (in Btu/lb) obtainable from an
adiabatic expansion of ethylene gas through a turbine from 1000
psia and 340 F to a pressure of 100 psia.
Draw the process path on a T-S
diagram.
a) Assume NON-IDEAL behaviour and use the generalized Charts/Tables. Use Tables of Property Departure.
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What is the maximum work (in Btu/lb) obtainable from an
adiabatic expansion of ethylene gas through...
Moist air is at 80F (26.67C) dry-bulb, 0.0150 lb-w/lb-da (0.0150 kg-w/kg-da) humidity ratio, pressure of 14.696...
Moist air is at 80F (26.67C) dry-bulb, 0.0150 lb-w/lb-da (0.0150 kg-w/kg-da) humidity ratio, pressure of 14.696 psia (101.35 kPa). Determine the dew-point temperature, relative humidity, volume in cu ft/lb-da (cu meters/kg-da), and enthalpy in Btu/lb-da (kJ/kg-da) using the moist air property tables and the ideal gas equations. What error is incurred using the ideal gas approach? Compare these results with the psychrometric charts (available in ASHRAE Fundamentals)
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
An ideal gas, initially at P1 = 0.75 bar, undergoes an adiabatic expansion from V1 =...
An ideal gas, initially at P1 = 0.75 bar, undergoes an adiabatic expansion from V1 = 10.0 L to V2 = 30.0 L. What is the final pressure and temperature of this gas? Explain how you got this.
Consider a reversible adiabatic expansion of 1.00 mol of an ideal gas, starting from 1.90 L...
Consider a reversible adiabatic expansion of 1.00 mol of an ideal gas, starting from 1.90 L and 415 K , if 2.0 kJ of work is done by the expansion. The molar heat capacity at constant volume of the gas is 2.5R. R = 8.314 JK−1mol−1. Determine the final temperature of the gas in the process. Determine the final volume of the gas in the process. Determine the final pressure of the gas in the process.
An ideal diatomic gas undergoes an adiabatic expansion during which time its volume changes from VA...
An ideal diatomic gas undergoes an adiabatic expansion during which time its volume changes from VA = 450 cm3 to VB = 1500 cm3. If its initial pressure is PA = 5.60 atm, what is the final pressure PB of the gas? ________ atm
Do 4 and 5: Show full workings and unit conversions Steam enters an adiabatic turbine at...
Do 4 and 5: Show full workings and unit conversions
Steam enters an adiabatic turbine at 20 MPa and 700° C. Steam leaves the turbine at a temperature of 160° C with a quality of 88%. Determine the mass flow rate of steam necessary to produce 18 MW power output. Neglect the effect of elevation and velocity changes (20) 5. An air standard Otto cycle compresses air from 14.7 psia and 80°F at the beginning of the compression process. It...
One mole of an ideal gas undergoes a reversible adiabatic expansion from T_1, to T_2 while...
One mole of an ideal gas undergoes a reversible adiabatic expansion from T_1, to T_2 while tripling the volume of the gas. What is the relation between T_1 and T-2? T-2/3 < T_1<T_2 T_2/3 < T_1 < T-2 T_1= T_2 T_2<T_1 T_1 lessthanorequalto T_2/3 One mole of Ar gas undergoes the reversible transformation shown. Assuming Ar behaves ideally, which statement is true for step 2? Delta U= C_p DeltaT DeltaH < Delta U Delat S= c_p ln(T_c/T_B) W = etaRt...
4.)Write an expression for the relationship between P and V for the adiabatic compression of air....
4.)Write an expression for the relationship between P and V for
the adiabatic compression of air.
5.)do the results above agree with this expression with 5%? what
discrepancies could there be?
6.)Does the syringe return to it's initial volume when the
plunger is released?
7.) provide a Pressure-Volume graph of he compression and
expansion cycle of the gas. label the adiabatic, isothermal and
isovolumetric.
Pressure (kPa) Volume (ml) Temperature (°C Temperature (K) initial 40 26.40 299.55 [102.337 [211-818 Maximum pressure...
A closed system of 2 moles of helium gas ( monatomic) (M=4 g/mol) goes through the...
A closed system of 2 moles of helium gas ( monatomic) (M=4 g/mol) goes through the following reversible process: Process1->2: Isothermic expansion at T=400k form V1=.03 m^3 to V2=.12 m^3 Process 2->3: Adiabatic expansion to T= 325 K and V3 = .2 m^3 Process 3->4: Isothermic compression at T=325K to P4 = 1.1*10^5 Pa Process 4->1: Adiabatic compression (from state 4 back to state 1) A) sketch a PV diagram of tis cycle B) sketch a ST diagram of this...
Please help me about Physics, Thanks. A sample of 1.00 mole of a diatomic ideal gas...
Please help me about Physics, Thanks. A sample of 1.00 mole of a
diatomic ideal gas is intially at temperature 265K...........
Thermodynamic Processes involving Ideal Gases-in-class worksheet-(5 points) PHYS 181 Question B (B.) A sample of 1.00 mole of a diatomic ideal gas is initially at temperature 265 K and volume 0.200 m. The gas first undergoes an isobaric expansion, such that its temperature increases by 120.0 K. It then undergoes an adiabatic expansion so that its final volume is...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
Do 4 and 5: Show full workings and unit conversions
Steam enters an adiabatic turbine at 20 MPa and 700° C. Steam leaves the turbine at a temperature of 160° C with a quality of 88%. Determine the mass flow rate of steam necessary to produce 18 MW power output. Neglect the effect of elevation and velocity changes (20) 5. An air standard Otto cycle compresses air from 14.7 psia and 80°F at the beginning of the compression process. It...
One mole of an ideal gas undergoes a reversible adiabatic expansion from T_1, to T_2 while tripling the volume of the gas. What is the relation between T_1 and T-2? T-2/3 < T_1<T_2 T_2/3 < T_1 < T-2 T_1= T_2 T_2<T_1 T_1 lessthanorequalto T_2/3 One mole of Ar gas undergoes the reversible transformation shown. Assuming Ar behaves ideally, which statement is true for step 2? Delta U= C_p DeltaT DeltaH < Delta U Delat S= c_p ln(T_c/T_B) W = etaRt...
4.)Write an expression for the relationship between P and V for
the adiabatic compression of air.
5.)do the results above agree with this expression with 5%? what
discrepancies could there be?
6.)Does the syringe return to it's initial volume when the
plunger is released?
7.) provide a Pressure-Volume graph of he compression and
expansion cycle of the gas. label the adiabatic, isothermal and
isovolumetric.
Pressure (kPa) Volume (ml) Temperature (°C Temperature (K) initial 40 26.40 299.55 [102.337 [211-818 Maximum pressure...
Please help me about Physics, Thanks. A sample of 1.00 mole of a
diatomic ideal gas is intially at temperature 265K...........
Thermodynamic Processes involving Ideal Gases-in-class worksheet-(5 points) PHYS 181 Question B (B.) A sample of 1.00 mole of a diatomic ideal gas is initially at temperature 265 K and volume 0.200 m. The gas first undergoes an isobaric expansion, such that its temperature increases by 120.0 K. It then undergoes an adiabatic expansion so that its final volume is...
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