Compressible aerodynamics. Derive an expression for Cp that is a function of gamma and R only....
Compressible aerodynamics. Derive an expression for Cp that is a function of gamma and R only. Where gamma is the specific heat ratio, R is the gas constant, and Cp is the pressure coefficient.
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Compressible aerodynamics. Derive an expression for Cp that is a
function of gamma and R only....
ow Help 101.2019,0-C.pdf UESTION 2 hat is a compressible flow? When do you say that the flow is compressible and what is the lach number beyond which the flow is said to be compressible? For an in...
ow Help 101.2019,0-C.pdf UESTION 2 hat is a compressible flow? When do you say that the flow is compressible and what is the lach number beyond which the flow is said to be compressible? For an incompressible flow machine define the flow coefficient. At what speed the blade must run to get a flow coefficient equal to 0.5. if the average meridional speed is 100 m/s QUESTION 3 Define reheat factor. What is the range of reheat factor? What is...
4. [25 pts] The pressure coefficient is defined as Cp = 1 Con = P —...
4. [25 pts] The pressure coefficient is defined as Cp = 1 Con = P — Poo POU Assuming incompressible flow, use the incompressible form of Bernoulli's equation to show that the value of Cp at a stagnation point is given by Cjosp = 1. Now assume isentropic compressible flow of a gas with constant specific heats and derive the following relation for the value of the pressure coefficient at a stagnation point: 2 sp /M% poo M. ! 2...
a. Given that the energy of an ideal gas is a function of temperature only, show...
a. Given that the energy of an ideal gas is a function of temperature only, show how the conclusion can be reached that the enthalpy of an ideal gas is also only a function of temperature. b. Show that for an ideal gas Cp-Cv=R Hint: How much more heat is required to raise the temperature of the gas by 1K if the process is carried out at constant pressure rather than constant volume? Explain.
Derive a linear expression for Cp(T) of liquid ethanol if Cp(0oC) = 103.1 J/mol oC and...
Derive a linear expression for Cp(T) of liquid ethanol if Cp(0oC) = 103.1 J/mol oC and Cp(100oC) = 158.8 J/mol oC. Use the derived expression and data in Table B.1 to calculate the heat transfer rate (kW) required to bring a stream of liquid ethanol flowing at 75.0 L/s from 25 oC to the boiling point at 1 atm
Q6 (a) Explain briefly the different between incompressible and compressible fluid flow (5 marks) (6) Air...
Q6 (a) Explain briefly the different between incompressible and compressible fluid flow (5 marks) (6) Air at pressure and temperature of 200 kPa, 373.2 K flows through a duct at Mach Number of 0.8. The gas constant and specific heat ratio of air are 0.287 kJ/kg k, 1.4 respectively. Determine, (1) air velocity: (11) stagnation pressure: (111) stagnation temperature and (iv) stagnation density (8 marks) Nitrogen enters a converging diverging nozzle from a reservoir at a pressure of 700 kPa...
3. Consider the entropy as a function of temperature and pressure. Derive an expression for the change in entropy in te...
3. Consider the entropy as a function of temperature and pressure. Derive an expression for the change in entropy in terms of parameters such as Cp, a, K, T, and V.
c. Derive the following expression Using the expression in part c, derive an expression for terms...
c. Derive the following expression Using the expression in part c, derive an expression for terms of only Rand P. d. ASof an ideal gas in How does the molar entropy change with increasing pressure for an ideal gas? Justify you answer using the result in part d e.
Calculate without constant specific heat (Cp). An air-standard dual cycle has a compression ratio of 14...
Calculate without constant specific heat (Cp). An air-standard dual cycle has a compression ratio of 14 and cut-off ratio of 1.2. The pressure ratio during constant volume heat addition is 1.5. Determine the: (A) Thermal efficiency (B) Amount of heat added (C) Maximum gas pressure and temperature when the cycle is operated at 80kPA and 20°C at the beginning of the compression.
1 - Solve the items of applied chemical thermodynamics Determine a relationship between Cp and the...
1 - Solve the items of applied chemical thermodynamics Determine a relationship between Cp and the PVT properties of any substance. Tip: Start from the definition of Cp and fundamental relationships. If the previous substance behaves as the ideal gas, show that Cp and Cv are independent of the pressure. What is the relationship between Cp and pressure for a compressed liquid if the isobaric expansion coefficient is independent of pressure. If a gas can be described by the Clausius...
The molar heat capacity at constant pressure Cp,m of certain ideal gas was found to vary...
The molar heat capacity at constant pressure Cp,m of
certain ideal gas was found to vary according to the
expression
Cp,m = co + ciT, where co = 6.723 J K-1 mol-1 and cı = 0.1222 J K-2 mol-1 are constants peculiar to the gas. Calculate q, w, AU, and AH for a system comprising 3.0 mol of the gas undergoing the following reversible transformations: (a) the temperature of the gas is raised from 25.00°C to 100°C at constant pressure....
ow Help 101.2019,0-C.pdf UESTION 2 hat is a compressible flow? When do you say that the flow is compressible and what is the lach number beyond which the flow is said to be compressible? For an incompressible flow machine define the flow coefficient. At what speed the blade must run to get a flow coefficient equal to 0.5. if the average meridional speed is 100 m/s QUESTION 3 Define reheat factor. What is the range of reheat factor? What is...
4. [25 pts] The pressure coefficient is defined as Cp = 1 Con = P — Poo POU Assuming incompressible flow, use the incompressible form of Bernoulli's equation to show that the value of Cp at a stagnation point is given by Cjosp = 1. Now assume isentropic compressible flow of a gas with constant specific heats and derive the following relation for the value of the pressure coefficient at a stagnation point: 2 sp /M% poo M. ! 2...
Q6 (a) Explain briefly the different between incompressible and compressible fluid flow (5 marks) (6) Air at pressure and temperature of 200 kPa, 373.2 K flows through a duct at Mach Number of 0.8. The gas constant and specific heat ratio of air are 0.287 kJ/kg k, 1.4 respectively. Determine, (1) air velocity: (11) stagnation pressure: (111) stagnation temperature and (iv) stagnation density (8 marks) Nitrogen enters a converging diverging nozzle from a reservoir at a pressure of 700 kPa...
3. Consider the entropy as a function of temperature and pressure. Derive an expression for the change in entropy in terms of parameters such as Cp, a, K, T, and V.
c. Derive the following expression Using the expression in part c, derive an expression for terms of only Rand P. d. ASof an ideal gas in How does the molar entropy change with increasing pressure for an ideal gas? Justify you answer using the result in part d e.
The molar heat capacity at constant pressure Cp,m of
certain ideal gas was found to vary according to the
expression
Cp,m = co + ciT, where co = 6.723 J K-1 mol-1 and cı = 0.1222 J K-2 mol-1 are constants peculiar to the gas. Calculate q, w, AU, and AH for a system comprising 3.0 mol of the gas undergoing the following reversible transformations: (a) the temperature of the gas is raised from 25.00°C to 100°C at constant pressure....
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