Determine the thermal efficiency and energy discharged

Assignment Help Mechanical Engineering
Reference no: EM13714241

A power cycle receives 1120 Btu by heat transfer from a reservoir at 1080o F and discharges energy by heat transfer to a reservoir at 280 o F. The thermal efficiency of the cycle is 68% of that for a reversible power cycle operating between the same reservoirs. For the actual cycle, determine the thermal efficiency and energy discharged to the cold reservoir, in Btu(with sketch)

Reference no: EM13714241

Questions Cloud

Refrigeration cycle maintains a clean room : A refrigeration cycle maintains a clean room at 68o F by removing energy entering the room by heat transfer at the rate of 0.21 Btu/s. The cycle rejects energy by heat transfer to the outdoors where the temperature is 80o F. Assume steady state opera..
How far does the puck land from the base of the table : A rocket-powered hockey puck has a thrust of 1.5 N and a total mass of 1.0 kg. How far does the puck land from the base of the table
At what horizontal distance left of the loop : A 320 g model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. At what horizontal distance left of the loop should you launch
Thermal efficiency of reversible power cycle operating : The thermal efficiency of reversible power cycle operating between hot and cold reservoirs is 38%. Evaluate the COP of: (a) a reversible refrigeration cycle operating between the same two reservoirs. (b) a reversible heat pump cycle operating between..
Determine the thermal efficiency and energy discharged : A power cycle receives 1120 Btu by heat transfer from a reservoir at 1080o F and discharges energy by heat transfer to a reservoir at 280 o F. The thermal efficiency of the cycle is 68% of that for a reversible power cycle operating between the same ..
Estimate what is the speed of the block : A 2.70kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0300m. The spring has force constant 835N/m. What is the speed of the block when it has moved a distance of 0.0160m from its initial position
The microstructure of a copper-silver alloy : The microstructure of a copper-silver alloy at 775°C (1425°F) consists of primary and eutectic structures. If the mass fractions of these two micro constituents are 0.75 and 0.25, respectively, determine the composition of the alloy (expressed in wt...
What is their velocity when they meet : A car travelling at 15 m/s passes a runner and immediately starts breaking at a constant acceleration of -2 m/s2, What is their velocity when they meet
Determine the fraction of the liquid phase : A 74 wt% Ni-26 wt% Cu alloy is heated to a temperature within the ? + liquid phase region. If the composition of the phase is 80 wt% Ni, using figure 10.3

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Give two applications of manufactured plastics

The main advantages of ceramic math composites over polymer matrix composites is. The phenomenon of sudden failure of ceramics when subjected to a static tensile load over time is called. Give two applications of manufactured plastics

  What was the mass of freon-12 added to the tank what is the

an 0.5 m3 rigid tank contains equal volumes of freon-12 vapor and freon-12 liquid at 312k. additional freon-12 is added

  Hot water is pumped through a plate heat exchanger the hot

hot water is pumped through a plate heat exchanger. the hot water side of the heat exchanger consists of 16 plates of

  Calculate the entropy change in btulbmr b calculate the

steam is contained in a rigid container at an initial pressure of 100 psia and 600 f. the pressure is reduced to 10

  Steam at 1 bar enters an adiabatic heat exchanger with a

steam at 1 bar enters an adiabatic heat exchanger with a quality of 0.896 and exits as a saturated liquid. the steam is

  Calculate the number of vacancies per cubic meter in some

calculate the number of vacancies per cubic meter in some metal at 689degc. the energy for vacancy formation is 0.75

  What is the mole fraction of water in the exhaust stream

A mixture of propane and butane is fed into a furnace where it is mixed with air. The furnace exhaust leaves the furnace at 343°C, 780.0 mmHg and contains only N2, O2, CO2, and H2O. The partial pressure of O2 in the exhaust is 51.40 mmHg and the part..

  How much throttling is necessary for this scheme to work

the throttling calorimeter is a device for measuring the state of a liquid-vapor mixture. the procedure is to bleed off

  A projectile is fired at an angle of 62deg from the

a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds

  Determine the velocity of the air at the duct inlet

Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.

  Calculate the mass concentration of the aerosol the number

a poly-dispersed aerosol consists of spherical particles within the size range 1.0-10.0 micrometers. the particles are

  Estimate the convective heat-transfer coefficient for

estimate the convective heat-transfer coefficient for natural convection from a horizontal steam pipe. the outside

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