Maximum theoretical value of the number

Assignment Help Mechanical Engineering
Reference no: EM13949555

1. An inventor claims to have developed a power cycle having a thermal efficiency of 40%, while operating between hot and cold reservoirs at temperature TH and TC 5 300 K, respectively, where TH is (a) 600 K, (b) 500 K, (c) 400 K. Evaluate the claim for each case.

2. Referring to the cycle of Fig. 5.13, if p1 5 2 bar, y1 5 0.31 m3/kg, TH 5 475 K, QH 5 150 kJ, and the gas is air obeying the ideal gas model, determine TC, in K, the net work of the cycle, in kJ, and the thermal efficiency.

3. An inventor claims to have developed a power cycle operating between hot and cold reservoirs at 1000 K and 250 K, respectively, that develops net work equal to a multiple of the amount of energy, QC, rejected to the cold reservoir-that is Wcycle 5 NQC, where all uantities are positive. What is the maximum theoretical value of the number N for any such cycle?

Reference no: EM13949555

Questions Cloud

Explain how data mining be used to imporve customer service. : Please explain how a databses management system (DBMS) and data mining can help a motor vehicle maintenance center improve its services, and what tables would be needed in such a database
How will setting supply chain standards improve scm : Please supplement the paper with other references of your choice. How will setting supply chain standards improve supply chain management?
Do you agree with this tenet : Just War Theory, beginning with Cicero, states that war should be a last resort, only when discussion has failed. Do you agree with this tenet?
Fourth amendment exception as it pertains : Describe the impact of the General Agreement on Tariffs and Trade (GATT) and North American Free Trade Agreement (NAFTA) agreements on cross border trade in North America.
Maximum theoretical value of the number : An inventor claims to have developed a power cycle operating between hot and cold reservoirs at 1000 K and 250 K, respectively, that develops net work equal to a multiple of the amount of energy, QC, rejected to the cold reservoir-that is Wcycle 5 ..
What were the reasons offered for implementing abc : What were the reasons offered for implementing ABC? What implementation procedures were used? How many activities were identified?
Determine the net work developed : 1. A reversible power cycle operating between hot and cold reservoirs at 1000 K and 300 K, respectively, receives 100 kJ by heat transfer from the hot reservoir for each cycle of operation. Determine the net work developed in 10 cycles of operatio..
Descriptions of the cost accounting system : Descriptions of the cost accounting system used in the organization - Pros and cons of this cost accounting system
Identify the foreign key columns in the table structures : The problems below use the Customer, OrderTbl, and Employee tables of a simplified Order Entry database.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  The pressure inside a system varies inversely with the

the pressure inside a system varies inversely with the square of the system volume. determine work required to compress

  Sketch the arrangements draw neat sketches to show how the

a tie bars is to be made in two parts to facilitate adjustment in length during assembly. sketch the arrangements. draw

  Turbofan engine on a test stand in the maintenance

The explanation provided below, provide the solution to the problem in simple and easy to understand steps. A turbofan engine on a test stand in the maintenance shop is being run at a continuous setting of 22,700 lbs of thrust. The TSFC is 0.5 lbs/..

  A rigid tank contains 5lb of a two-phase liquid-vapor

a rigid tank contains 5lb of a two-phase liquid-vapor mixture of h2o initially at 26of with a quality of 0.6. heat

  The diffusivity of copper in a commercial brass alloy

The diffusivity of copper in a commercial brass alloy is 10^-20 m2/s at 500'C. The activation energy for diffusion of copper in this system is 195 kJ/mol. Calculate the diffusivity at 600'C.

  The magnitude and direction of the resultant force

Consider the cylindrical weir of diameter 3 m and lenght 6m.if fluid on the left has specific gravity of 1.6,and on the right has a specific gravity of 0.8,find the magnitude and direction of the resultant force

  Calculate athe mass of the air that has entered the tank

a 1-m3 rigid tank initially contains air at 150 kpa 300 k. the tank is connected through a valve to a supply line at

  What is the heat transfer associated

Air in a piston-cylinder device is compressed from an initial state (temperature = 80 °C, pressure = 100 kPa, volume = 0.3 m3) to a final state (temperature = 250 °C, pressure = 600 kPa), during a polytropic process (n = 1.28094065700868). What is th..

  Concentric cylinder viscometer may be formed by rotating

A concentric cylinder viscometer may be formed by rotating the inner member of a pair of closely fitting cylinders (see Figure 1). For small clearances, a linear velocity profile may be assumed in the liquid filling the annular clearance gap. A visco..

  Determine temperature of a flat piece of the coated aluminum

Determine the equilibrium temperature of a flat piece of the coated aluminum that is exposed to solar irradiation, GS = 1368 W/m2 on its upper surface. The opposite surface is insulated.

  Air is compressed adiabatically from 147 psia 70 to 588

air is compressed adiabatically from 14.7 psia 70 to 58.8 psia and 76 btulbm of work is required. neglecting changes

  The specific heat of the gas follows the relationship given

an ideal gas flows through a device at steady state. the temperature of the gas at the inlet is 20c and its velocity

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