Thermal efficiency of the ideal rankine cycle

Assignment Help Mechanical Engineering
Reference no: EM13946578

Consider a Rankine cycle with saturated steam leaving the boiler at a pressure of 2 MPa and a condenser pres- sure of 10 kPa.

(a) Calculate the thermal efficiency of the ideal Rankine cycle for these operating conditions.

(b) If the net reversible work for the cycle is 0.5 MW, calculate the required flow rate of cooling water supplied to the condenser at 15°C with an allow- able temperature rise of 10°C.

(c) Design a shell-and-tube heat exchanger (one-shell, multiple-tube passes) that will meet the heat rate and temperature conditions required of the con- denser. Your design should specify the number of tubes and their diameter and length.

Reference no: EM13946578

Questions Cloud

Confidence interval for the population mean salary : Using our sample data, we can construct a 95% confidence interval for the population's mean salary for each gender. Interpret the results. Based on our sample data, can we conclude that males and females are distributed across grades in a similar p..
What your conclusions about gender equal pay for equal work : Pick any other variable you are interested in and do a simple 2-way ANOVA without replication. Why did you pick this variable and what do the results show? Using the results for this week, What are your conclusions about gender equal pay for equal ..
What is the heat exchanger effectiveness : What is the maximum possible heat transfer rate? What is the heat exchanger effectiveness? Should the heat exchanger be operated in parallel flow or in coun- terflow? What is the ratio of the required areas for these two flow conditions?
Determine the rate of heat transfer from the plate : The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this pressure and at 30°C flows with a velocity of 6 m/s over a 2.5-m 8-m flat plate whose temperature is 120°C.
Thermal efficiency of the ideal rankine cycle : Calculate the thermal efficiency of the ideal Rankine cycle for these operating conditions. If the net reversible work for the cycle is 0.5 MW, calculate the required flow rate of cooling water supplied to the condenser at 15°C with an allow- able ..
How do you interpret the results : Based on our sample, how do you interpret the results and what do these results suggest about the population means for male and female salaries
Correct chronological development of these tunnels : The correct chronological development of these tunnels - Emperor Claudius built the first Roman tunnel
Calculate the power required by the motor : The inlet and outlet mean temper- atures of the water with respect to the radiator are and the air in the evaporator and condenser sections are the same, 3 X 10-3  K/W, determine the temp- erature required by the refrigerant in each section. Calcu..
Identify the communication needs and how you satisfy them : For each phase, identify the communication needs and briefly describe how you will satisfy them.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Maintain the heated space at a constant temperature

A heat pump is used to heat a building. The outside air temperature is -10 C and the desired inside temperature is 20.3 C. The heat loss through the walls, ceiling, etc, is 30 kW. Determine the ideal coefficient of performance and the minimum power r..

  Using this form for the diagonal nodes and appropriate

the diagonal of a long triangular bar 45-45-90 triangle section is well insulated. while sides of equivalent length are

  Calculate change in free-energy associated with formation

Calculate the change in free-energy associated with the formation of a critical spherical nucleus in pure liquid nickel that is 200 ºC under cooled. Properties of Nickel: Heat of Fusion 2660 J/cm3; Surface Energy 255x10-7 J/cm2 ; Freezing Temperatur..

  An ideal gas with molecular weight of 65 kgkgmol is

an ideal gas with molecular weight of 6.5 kgkgmol is compressed in a reversible manner from 690 kpa and 277 k to a

  What is the mass of air in the cylinder

The cylinder of a turbocharged diesel engine is filled with air at 30.0 psia and 250°F. When the intake valve closes, cylinder volume is 60.0 in3. The piston moves upward un-til cylinder volume is 4.00 in3, at which time pressure is 1100 psia. What ..

  Determine the rates of heat and moisture removal from air

Air enters a window air conditioner at 1 atm, 32C, 70% relative humidity at a rate of 2 m^3/min, and it leaves as saturated air at 15C. Part of the moisture in the air that condenses during the process is also removed at 15C. Determine the rates of h..

  Assuming that the maximum power output is proportional to

the maximum power output capability of an engine decreases with altitude because the air density and hence the mass

  Estimate the fad of the compressor

Estimate the FAD (N.T.P.) of the compressor, and the relative humidity of the air entering the compressor - Select and size a suitable type of machine with regard to output FAD (free air delivered) and quality of air supply.

  The evaporator operates at 200 kpa determine the systems

a heat pump uses r-134a as the working fluid and operates on an ideal vapor-compression cycle. the condenser pressure

  Consider nitrogen gas contained in a piston-cylinder

consider nitrogen gas contained in a piston-cylinder arrangement. the cylinder diameter is 150 mm. at the initial state

  Contact surface effects produce a semi-spherical droplet

a water drop of radius r1mm at ambient conditions 27c and 1atm is used to cool a computer chips hot spot. the chip is

  Refrigeration cycle operating

A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir at TC = 280 K and rejects energy QH to a hot reservoir TH = 330 K. For each of the following cases determine whether the cycle operates reversibly, irreve..

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