Maximum and minimum temperatures for the cycle

Assignment Help Mechanical Engineering
Reference no: EM13718040

One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency of 60%. The heat transfer to the air during the isothermal expansion is 40 kJ. At the beginning of the isothermal expansion, the pressure is 700 kPa and the volume is 0.24 m3. Determine

a) the maximum and minimum temperatures for the cycle, in K.

b) the heat and work for each process, in kJ.

Reference no: EM13718040

Questions Cloud

Properties enthalpy and entropy are deriven from heat : In thermodynamics, path functions such as heat or work are dependent on path process, point functions are not. Properties enthalpy and entropy are deriven from heat and work relationships. However, when we calculate these properties just like point f..
Evaluate the thermal efficiency-carnot power cycle : One-half kilogram of water executes a Carnot power cycle. During the isothermal expansion, the water is heated until it is a saturated vapor from an initial state where the pressure is 1.5 MPa and the quality is 25%.
Determine the minimum theoretical value for TH in K : A power cycle operates between a reservoir at temperature TH and a lower-temperature reservoir at 280 K. At steady state, the cycle develops 40 kW of power while rejecting 1000 kJ/min of energy by heat transfer to the cold reservoir. Determine the mi..
Developed a device that executes a power cycle : An inventor claims to have developed a device that executes a power cycle while operating between reservoirs at 500 and 300 K that has a thermal efficiency of (a) 45%, (b) 40%, (c) 35%. Evaluate the claim for each case.
Maximum and minimum temperatures for the cycle : One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency of 60%. The heat transfer to the air during the isothermal expansion is 40 kJ. At the beginning of the isothermal expansion, the pressure is 700 kPa and the..
Component in the shape of a large rectangular sheet : A component in the shape of a large rectangular sheet is made from AL-7075-T651. It carries uniform axial stress that may reach up to 50% of its yield strength. Assuming worst case scenario, what is the largest edge crack that can be allowed?
Design a single pass shell and tube type heat exchanger : Design a single pass shell and tube type heat exchanger which requires mh = 25 kg/s with Th,i = 30 C and mc = 75 kg/s with Tc,i = 20 C. What heat transfer rate is obtained using 150 2 m tubes (ID = 16 mm and OD = 19 mm with kw = 400 W/mK).
Coil for controlling the fermentation temperature : A helical cooling coil of 150 m in length and 12 cm in diameter inside a fermenter was used to maintain the temperature of a fermentation broth at 37 degrees C. When the coil was totally clean, only 15 kg/s cooling water at 12 degrees C were required..
Find the total friction losses and piping system : Water is pumped from a lake at ambient pressure and temperature to an elevation of 15 m through a pipe of 2-cm diameter galvanized iron at a flow rate of 0.00366 m3 /s. Assume the discharge is to open atmosphere. The pipe is 70 m long and has 2- 90o ..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  What are minimum yield strength-ultimate tensile strength

A torsion bar is used as a suspension element for a vehicle. The bar has a diameter of 20 mm. It is subjected to a torsional moment of 450 N # m and an axial tensile force of 36.0 kN.

  Calculate the time rate of change hb of angular momentum

a small 4 oz particle is prokected with a horizontal velocity of 6ftsec into the top of smooth circular guide fixed in

  Determine the time dependent temperature distribution in

an infinity long flat plate is initially at rest immersed in a liquid pool with properties n alpha tinfin. the plate is

  Determine the centerline temperature of the beam after an

a cylindrical stone mix concrete beam of diameter d 0.45 initially at ti 20c is exposed to hot gases at tinfinity

  If the compression ratio is 15 and during the process 1800

consider an air standard diesel cycle engine. at the beginning of compression the temperature is 300 k and the pressure

  Investigating a dynamic movement in polar coordinates

Investigating A Dynamic Movement in Polar Coordinates

  Heat is added at constant pressure until a temperature of

a cold-air standard diesel cycle has a compression ratio of 16 and begins compressing air isentropically from an

  Show that this function satisfies the requirements of a

consider the following probability distribution function for a continuous random variablefx 3x6235 -2ltxlt-3

  How much does it save in gasoline if compared to a 30

the hybrid vehicle engine produces an average of 25 kw of power output and has an efficiency of 65. assume it runs 200

  Strength and ductility of a crystalline material

Explain how you would expect the strength and ductility of a crystalline material to change as the ASTM Grain size number change from 14 to 3.

  The limestone scrubber operates with an efficiency of 90

a 1000 mw coal fired power plant operates with an annual plant capacity factor equal to 75. the plant burns coal which

  Compare the thermal efficiency of a two-stage gas turbine

compare the thermal efficiency of a two-stage gas turbine with regeneration reheating and intercooling to that of a

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd