![datboyjulio21](/avatars/13936.jpg)
datboyjulio21
02.11.2020 •
Physics
] A new coal-fired 750 MWe power plant with a thermal efficiency of 42% burns 9000 Btu/lb coal, which contains 1.1% sulfur. a. If a scrubber with 75% removal efficiency is utilized, what is the net emissions rate of sulfur? Express answer in lbs/hr.
Solved
Show answers
More tips
- F Food and Cooking How to salt lard?...
- W Work and Career Can Skill Alone Make You a Professional?...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
Answers on questions: Physics
- P Physics Astring wound around a cylinder of 10.0 cm...
- P Physics A uniform solid cylindrical log begins rolling without slipping down a ramp that rises 28.0° above the horizontal. After it has rolled 4.20 m along the ramp, what is the...
- P Physics A 4.00-kg mass and a 9.00-kg mass are being held at rest against a compressed spring on a frictionless surface. When the masses are released, the 4.00-kg mass moves to the...
- P Physics How will increasing the frequency of this wave affect the wavelength?...
- P Physics 100 cm = 1 m, 9750 cm ?__m 11...
- P Physics A pot of water is heated on an electric stove top and begins to boil. Which two transfers of thermal energy involved in this system are examples of conduction? A. From the...
- P Physics A horizontal line on a distance-time graph indicates Α. no location B. no movement...
- P Physics What is the mass of a car that can slow down at 3.2 m/s? when a 1426 N breaking force is applied to bring it to a stop? (Round to one decimal place.) please help...
- M Mathematics Asavings account gas 3% interest rate (a) complete the ratio table shown. show your work. (b) how much more interest would you have if you deposited $200 than if you deposited...
- P Physics Lymph contains hemocytes, a type of white blood cell. true or false...
Ответ:
The net emissions rate of sulfur is 1861 lb/hr
Explanation:
Given that:
The power or the power plant = 750 MWe
Since the power plant with a thermal efficiency of 42% (i.e. 0.42) burns 9000 Btu/lb coal, Then the energy released per one lb of the coal can be computed as:
= 3988126.8 J
= 3.99 MJ
Also, The mass of the burned coal per sec can be calculated by dividing the molecular weight of the power plant by the energy released per one lb.
i.e.
The mass of the coal that is burned per sec![=\dfrac{750}{3.99}](/tpl/images/0860/2719/ebe1f.png)
The mass of the coal that is burned per sec = 187.97 lb/s
The mass of sulfur burned![= \dfrac{1.1}{100} \times 187.97 \ lb/s](/tpl/images/0860/2719/9f51b.png)
= 2.067 lb/s
To hour; we have:
= 7444 lb/hr
However, If a scrubber with 75% removal efficiency is utilized,
Then; the net emissions rate of sulfur is (1 - 0.75) × 7444 lb/hr
= 0.25 × 7444 lb/hr
= 1861 lb/hr
Hence, the net emissions rate of sulfur is 1861 lb/hr
Ответ:
Evidence to puncture the Big Bang Theory