Engineering, 04.12.2019 23:31 maddie02294

Flue gas is cooled from 1373.15 k to 400 k and the heat is used to generate saturated steam at 100 °c in a boiler. the flue gas heat capacity is given by: cp /r = 3.83 + 0.000551t. water enters the boiler at 100 °c and is vaporized at this temperature, 100 °c. (its latent heat of vaporization is 2256.9 kj/kg).

a. with reference to the surrounding temperature of 15 °c, what is the lost work in units of kj/mol flue gas?

b. with reference to the surrounding temperature of 15 °c, what is the maximum work in kj/mol flue gas that can be accomplished by the saturated steam at 100 °c if it condenses only and does not subcool?

c. what is the maximum work theoretically obtainable from the flue gas itself as it cools from 1373.15 k to 4000 k? (the surrounding temperature at 15 °c)

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, heidiburgos1own6c0

Fluids at rest possess no flow energy. a)- true b)- false

Answers: 3

continue

Engineering, 04.07.2019 18:10, niyawilliams23

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Answers: 1

continue

Engineering, 04.07.2019 18:10, bckyanne3

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

Answers: 1

continue

Engineering, 04.07.2019 18:10, johnthienann58

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Answers: 2

continue

You know the right answer?

Flue gas is cooled from 1373.15 k to 400 k and the heat is used to generate saturated steam at 100 °...