Question

In: Physics

A Stirling Engine uses 8.1 x 10^-3 mol of an ideal gas, operates between hot and...

A Stirling Engine uses 8.1 x 10^-3 mol of an ideal gas, operates between hot and cold heat reservoirs of temperatures 95 degree celsius and 24 degree celsius, and runs at a rate of 0.7 cps. Q) What is the net transfer into the gas during in cycle?

Solutions

Expert Solution



Related Solutions

An engine that operates by means of an ideal diatomic ideal gas in a piston with...
An engine that operates by means of an ideal diatomic ideal gas in a piston with 2.70 moles of gas. The gas starts at point A with 3x103 Pa of pressure and 2.5x10-2 m3. To get from B from A, it is expanded by an isobaric process to double the initial volume. From B to C it expands adiabatically until it reaches three times the volume in A. From C to D the pressure decreases without changing the volume and...
Consider an engine in which the working substance is 1.23 mol of an ideal gas for...
Consider an engine in which the working substance is 1.23 mol of an ideal gas for which γ = 1.41. The engine runs reversibly in the cycle shown on the PVdiagram (see figure below). The cycle consists of an isobaric (constant pressure) expansion a at a pressure of 15.0 atm, during which the temperature of the gas increases from 300 K to 600 K, followed by an isothermal expansion b until its pressure becomes 3.00 atm. Next is an isobaric...
An ideal diesel engine uses air as the working fluid and operates with a thermal efficiency...
An ideal diesel engine uses air as the working fluid and operates with a thermal efficiency ?th =0.5 with a rate of heat addition Qin=120 kW. The temperature at the beginning and the end of the addition heat (combustion) are respectively: T2=900 K and T3=2100 K. Assume constant specific heats (Cp and Cv). The air properties at a room temperature T1=293.0 K are: Cp=1.005 kJ/kg.K, Cv=0.718KJ/kg.K, the gas constant of air is R=0.287 kJ/kg.K and the ratio of specific heats...
A reversible engine contains 0.350 mol of ideal monatomic gas, initially at 586 K and confined...
A reversible engine contains 0.350 mol of ideal monatomic gas, initially at 586 K and confined to a volume of 2.42 L . The gas undergoes the following cycle: ⋅ Isothermal expansion to 4.74 L ⋅ Constant-volume cooling to 252 K ⋅ Isothermal compression to 2.42 L ⋅ Constant-volume heating back to 586 K Determine the engine's efficiency in percents, defined as the ratio of the work done to the heat absorbed during the cycle.
An ideal Otto engine has a compression ratio of 10 and uses air as the working...
An ideal Otto engine has a compression ratio of 10 and uses air as the working fluid. The state of air at the beginning of the compression process is 100 kPa and 27 0C. The maximum temperature in the cycle is 2100K. (R=0.287 for air) (using variable specific heat) Draw the P-v diagram of the Otto cycle Determine the specific internal energies at the beginning and the end of the compression, Determine the specific internal energies before and after the...
Consider an automobile engine which operates on the ideal Otto cycle. In this engine, air is...
Consider an automobile engine which operates on the ideal Otto cycle. In this engine, air is compressed with a compression ratio of 10. At the beginning of the compression process, air is at 105 kPa and 17oC, and in the combustion process 640 kJ/kg of heat is added to air. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat-addition (combustion) process, (b) the net work output, (c)...
Determine what is the temperature of the hot combustion gas that is produced in the engine...
Determine what is the temperature of the hot combustion gas that is produced in the engine of a butanol (C4H9OH)-burning bus that uses ambient air for the combustion. Tip: write the balanced stoichiometric equation for the combustion of butanol assuming air is composed of 80% N2 and 20% O2 by volume, and derive the energy balance of the combustion. Atomic weights: C-12, H-1, O-16, N-14. For butanol: cp = 2 kJ/kg/°C; cv = 1.75 kJ/kg/°C; heat released by combustion, or...
An engine operates in a Carnot cycle. At point A in the cycle, 2.34 mol of...
An engine operates in a Carnot cycle. At point A in the cycle, 2.34 mol of a monatomic ideal gas has a pressure of 1,400 kPa, a volume of 10.0 L, and a temperature of 720 K. The gas expands isothermally to point B and then expands adiabatically to point C, where its volume is 24.0 L. An isothermal compression brings it to point D, where its volume is 15.0 L. An adiabatic process returns the gas to point A....
A gas turbine engine is considered in a race car design. The engine operates on two...
A gas turbine engine is considered in a race car design. The engine operates on two stages of compression with intercooling and two stages of expansion. The pressure ratio across each stage of the compressor and the turbine is 7. The air enters each stage of the compressor at 300K and each stage of the turbine at 1300K. Using air standard assumptions determine: Thermal efficiency and back work ratio if no regenerator is used; Thermal efficiency and back work ratio...
According to the ideal gas law, a 1.041 mol sample of carbon dioxide gas in a...
According to the ideal gas law, a 1.041 mol sample of carbon dioxide gas in a 1.016 L container at 270.0 K should exert a pressure of 22.70 atm. By what percent does the pressure calculated using the van der Waals' equation differ from the ideal pressure? For CO2 gas, a = 3.592 L2atm/mol2 and b = 4.267×10-2 L/mol. % Hint: % difference = 100×(P ideal - Pvan der Waals) / P ideal
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT