Power plant generates steam from coal burning

Assignment Help Mechanical Engineering
Reference no: EM13714378

A power plant generates steam from coal burning which burns at 3,000oF and produces about 13,000 BTU per pound. The steam is put into a poorly insulated turbine which allows 2,000 BTU per pound of coal to escape to the atmosphere at 90oF. Knowing the cooling water used is at 55oF What is the minimum amount of coal, in tons, needed to be used per hour needed to produce 667 MW?

Reference no: EM13714378

Questions Cloud

An irreversible heat pump is designed to remove heat : An irreversible heat pump is designed to remove heat at 7 C from the atmosphere and supply 43,200 kJ/h to an industrial process at 420 K . The COP of the actual heat pump is 60% of that of an internally reversible heat pump operating between the same..
Determine the entropy change of the nitrogen during process : A. 0.75 kg of nitrogen is compressed in a cylinder polytropically (n = 1.3). The initial conditions are 140 kPa & 37 C. The gas is compressed until the volume is reduced by half (50% of original). Assume constant specific heats at 300 K
Find the tension in the rope : If the coefficient of kinetic friction between the sofa and the ramp is 0.530, and the sofa has an acceleration of 0.800 m/s2, find the tension in the rope
Determine how much current is required : A 0.49 m-long solenoid consisting of 1000 turns is used to generate a magnetic field 0.35 T. How much current is required
Power plant generates steam from coal burning : A power plant generates steam from coal burning which burns at 3,000oF and produces about 13,000 BTU per pound. The steam is put into a poorly insulated turbine which allows 2,000 BTU per pound of coal to escape to the atmosphere at 90oF. Knowing the..
Find the maximum shear stress : Find the maximum shear stress in a 5 1/2 in-diameter circular saw blade if it runs idle at 5000 rev/min. The saw is 14 guage(0.0747 in) steel and is used on a 5/8 in-diameter. The thickness is uniform. What is the maximum radial component of stress?
Find the magnitude of the magnetic field inside the solenoid : A long solenoid consists of 1600 turns and has a length of 0.75 m. The current in the wire is 0.45 A. find the magnitude of the magnetic field inside the solenoid
What is the distance : Two parallel wires spaced a distance d apart experience an attractive force per unit length of 1.00e-4 N/m. what is the distance d
What is the distance : Two parallel wires spaced a distance d apart experience an attractive force per unit length of 1.00e-4 N/m. what is the distance d

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Will this specimen experience fracture if the largest

a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000

  The rod is in an air environment with tinfinity25c and h30

a brass rod k 133 wmk 150mm long and 10mm in diameter extends horizontally from a casting at 200 c. the rod is in an

  Determine the thermodynamic efficiency and back work ratio

A regenerative gas turbine is planned to operate with inlet conditions of 100 kPa and 300 K, a pressure ratio of 6, a turbine inlet temperature of 1600 K, and a net power output of 150 kW. The effectiveness of the regenerator is 90% and the adiabatic..

  A cannon-ball of 5 kg acts as a piston in a cylinder of 015

a cannon-ball of 5 kg acts as a piston in a cylinder of 0.15 m diameter. as the gun-powder is burned a pressure of 7

  The extrusion ratio-die geometry and extrusion speed

The extrusion ratio, die geometry, extrusion speed, and billet temperature all affect the extrusion pressure. Explain why.

  Refrigerant 134a is compressed at steady state from 24 bar

refrigerant 134a is compressed at steady state from 2.4 bar 0oc to 12 bar 50oc. refrigerant enters the compressor with

  Explain the velocity of the ball when it reaches the highest

A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?

  The heat exchanger effectiveness is 75 use a heating value

determine the air and kerosene flow rates for a 100-mw regenerative gas turbine with 1800k turbine inlet temperature

  Contains nitrogen gas with an absolute pressure

A rigid tank contains nitrogen gas with an absolute pressure of 113.1 kPa. A vacuum pressure gage connected to the tank reads -14.2 kPa-vacuum. What is the local atmospheric pressure (in kPa)?

  The area of a rectangle with a perimeter of 200 cm is

the area of a rectangle with a perimeter of 200 cm is modeled by a function a 100l - l2 where l is the length of the

  If the cooling water enters at 85f and leaves at 104f what

refrigerant 134a at 140f and 125 psia enters a condenser of a chiller at 800 lbh and exits as a saturated liquid at the

  A boat is traveling along a circular path having a radius

a boat is traveling along a circular path having a radius of 20m . determine the magnitude of the boats acceleration if

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