An adiabatic steady-flow pumping device shown in the sketch below employs a high pressure, high temperature stream of gas at port 1 to pump a lower temperature stream of gas from a low pressure at port 2 to a higher pressure at port 3. All of the gas leaves the device at port 3 at the temperature T3. If the gas can be modeled as an ideal gas with R = 2077 J/kg K and cP = 5234 J/kg K, determine the maximum value of the ratio ṁ2/ṁ1. Prove that this result is indeed a maximum.
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An adiabatic steady-flow pumping device shown in the sketch below employs a high pressure, high t...
4) The work produced by a piston-cylinder device depends on the pressure inside the cylinder and ...
visual studio 2017 c++
4) The work produced by a piston-cylinder device depends on the pressure inside the cylinder and the amount the piston moves, resulting in a change in volume inside the cylinder. Mathematically In order to integrate this equation, we need to understand how the pressure changes with the volume. We can model most combustion gases as air and assume that they follow the ideal gas law PV- nRT where P- pressure, kPa, volume, m n- number of...
/6 pts) A quasi-1-D steady adiabatic flow of NEON GAS (R 412 Jkg-K, Cp 1030 J/kg-K & k 53) flows through a gradually contoured channel as shown. Friction is insignificant except for the shock...
/6 pts) A quasi-1-D steady adiabatic flow of NEON GAS (R 412 Jkg-K, Cp 1030 J/kg-K & k 53) flows through a gradually contoured channel as shown. Friction is insignificant except for the shock. The mass flowrate is 70.2 kg/s State properties are only partially known. The flow velocity just after the normal shock is A12mis at section "Y. A) Find the stagnation temperature. T。= K and the critical temperature. T., K B) Find the flow Mach number just before...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as shown on the P-V...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as
shown on the P-V diagram below.
In the transition A⟶B the gas expands adiabatically and the
temperature drops from 600K to 400K. What is △U for this
transition? What is the work done on the gas? (This is the answer
to (a) in the table below)
During the transition B⟶C, the volume decreases from
2x10-3 m3 to 1x10-3 m3
at constant atmospheric pressure (isobaric). What is the work...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as shown on the P-V...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as
shown on the P-V diagram below.
In the transition A⟶B the gas expands adiabatically and the
temperature drops from 600K to 400K. What is △U for this
transition? What is the work done on the gas? (This is the answer
to (a) in the table below)
During the transition B⟶C, the volume decreases from
2x10-3 m3 to 1x10-3 m3
at constant atmospheric pressure (isobaric). What is the work...
visual studio 2017 c++ 4) The work produced by a piston-cylinder device depends on the pressure...
visual studio 2017 c++
4) The work produced by a piston-cylinder device depends on the pressure inside the cylinder and the amount the piston moves, resulting in a change in volume inside the cylinder. Mathematically In order to integrate this equation, we need to understand how the pressure changes with the volume. We can model most combustion gases as air and assume that they follow the ideal gas law PV- nRT where P- pressure, kPa, volume, m n- number of...
1 kg air is contained in an INSULATED piston-cylinder device. Initially, the temperature and pressure of the gas are T =...
1 kg air is contained in an INSULATED piston-cylinder device. Initially, the temperature and pressure of the gas are T = 300 K and P = 200 kPa respectively. Work is extracted from the gas until the pressure of the gas reaches to Pfinal. Calculate Pfinal according to the last digit of your student number. Students with “00” as the last digit should take Pfinal = 100 kPa and Students with “99” as the last digit should take Pfinal =...
1.) Consider the gas turbine with air-standard Brayton cycle shown below Temperature, T and Pressure, P...
1.) Consider the gas turbine with air-standard Brayton cycle shown below Temperature, T and Pressure, P are measured at the following points in the cycle: Turbine: input: TH = 1200 K, PH = 800 kPa output: TL = 662.4 K, PL = 100 kPa Compressor: input Tc = 300 K, Pc = 100 kPa output: Th = 543.4 K, Ph = 800 kPa Note: the working fluid is air which has Cp = 1.005 kJ/kg.K, k = 1.4, R =...
Heat is transferred to a gas in a piston cylinder device so that the volume changes...
Heat is transferred to a gas in a piston cylinder device so that the volume changes from 3 mºto 6 m2. The initial pressure and temperature of the gas are 400 kPa and 25°C. If the process is irreversible determine the following: 1- The final temperature of the gas. 2- The work done during the process (kJ). 3- The total change in internal energy (kJ). 4- The heat transfer for the process (kJ). 5- The total entropy change (kJ/K). Comment...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x (314 s1)t] (a.) What is the speed of the wave, and which direction does it travel? (b.) What is the wavelength? (c.) What is the frequency? (d.) What is the period? (e.) Suppose a piece of the string is clamped (held fixed) at two points 1.4 m apart. What are the longest three wavelengths of standing waves that can exist between the two points?...
**3. A rectangular bar as shown in Fig below is connected between two walls. The bar...
**3. A rectangular bar as shown in Fig below is connected between two walls. The bar generates heat at 3500 W/m 3 and is exposed to gas at 18 C with convection coeff. 34 W/m2.K. The wall surface temperatures are kept at 120 C. The bar is divided into 7 divisions with node numbered from 0,1,2.. to 7. The initial temperatures are TO-120 T1-91.11 T2-72.02 T3-62.72 T4-63.22 T5-73.52 T6-93.61 T7-120 C. For t>0 TO and T7 is kept at 120...
visual studio 2017 c++
4) The work produced by a piston-cylinder device depends on the pressure inside the cylinder and the amount the piston moves, resulting in a change in volume inside the cylinder. Mathematically In order to integrate this equation, we need to understand how the pressure changes with the volume. We can model most combustion gases as air and assume that they follow the ideal gas law PV- nRT where P- pressure, kPa, volume, m n- number of...
/6 pts) A quasi-1-D steady adiabatic flow of NEON GAS (R 412 Jkg-K, Cp 1030 J/kg-K & k 53) flows through a gradually contoured channel as shown. Friction is insignificant except for the shock. The mass flowrate is 70.2 kg/s State properties are only partially known. The flow velocity just after the normal shock is A12mis at section "Y. A) Find the stagnation temperature. T。= K and the critical temperature. T., K B) Find the flow Mach number just before...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as
shown on the P-V diagram below.
In the transition A⟶B the gas expands adiabatically and the
temperature drops from 600K to 400K. What is △U for this
transition? What is the work done on the gas? (This is the answer
to (a) in the table below)
During the transition B⟶C, the volume decreases from
2x10-3 m3 to 1x10-3 m3
at constant atmospheric pressure (isobaric). What is the work...
0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as
shown on the P-V diagram below.
In the transition A⟶B the gas expands adiabatically and the
temperature drops from 600K to 400K. What is △U for this
transition? What is the work done on the gas? (This is the answer
to (a) in the table below)
During the transition B⟶C, the volume decreases from
2x10-3 m3 to 1x10-3 m3
at constant atmospheric pressure (isobaric). What is the work...
visual studio 2017 c++
4) The work produced by a piston-cylinder device depends on the pressure inside the cylinder and the amount the piston moves, resulting in a change in volume inside the cylinder. Mathematically In order to integrate this equation, we need to understand how the pressure changes with the volume. We can model most combustion gases as air and assume that they follow the ideal gas law PV- nRT where P- pressure, kPa, volume, m n- number of...
Heat is transferred to a gas in a piston cylinder device so that the volume changes from 3 mºto 6 m2. The initial pressure and temperature of the gas are 400 kPa and 25°C. If the process is irreversible determine the following: 1- The final temperature of the gas. 2- The work done during the process (kJ). 3- The total change in internal energy (kJ). 4- The heat transfer for the process (kJ). 5- The total entropy change (kJ/K). Comment...
3.) The wave function for a harmonic wave on a string is y(x,t) (0.001 m)sin[(62.8 m1)x (314 s1)t] (a.) What is the speed of the wave, and which direction does it travel? (b.) What is the wavelength? (c.) What is the frequency? (d.) What is the period? (e.) Suppose a piece of the string is clamped (held fixed) at two points 1.4 m apart. What are the longest three wavelengths of standing waves that can exist between the two points?...
**3. A rectangular bar as shown in Fig below is connected between two walls. The bar generates heat at 3500 W/m 3 and is exposed to gas at 18 C with convection coeff. 34 W/m2.K. The wall surface temperatures are kept at 120 C. The bar is divided into 7 divisions with node numbered from 0,1,2.. to 7. The initial temperatures are TO-120 T1-91.11 T2-72.02 T3-62.72 T4-63.22 T5-73.52 T6-93.61 T7-120 C. For t>0 TO and T7 is kept at 120...
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