SHOW YOUR COMPLETE SOLUTION 3. A 65,000 KW steam power station uses coal of calorific value 15,000 kcal per kg. If the coal consump-tion per kWh is 0-5 kg and the load factor of the station is 40%, calculate (f) the overall efficiency (if)coal consumption per day.(i) 28-7% (ii) 312 tons]4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value of6950 kcal/kg, calculate:(1) the coal consumption per kWh.(in)the coal consumption per day.10) 0-413 kg (ii) 238 tons)

According to our guidelines, we are supposed to answer the first question. Please repost other…

3. A 65,000 kW steam power station uses coal of calorific value 15,000 kcal per kg. If the coal consump- tion per kWh is 0-5 kg and the load factor of the station is 40%, calculate (i) the overall efficiency (if) coal consumption per day. 1(0) 28-7% (ii) 312 tons] 4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value of 6950 kcal/kg, calculate: (1) the coal consumption per kWh, (inthe coal consumption per day. 100-413 kg (i) 238 tons]

3. A 65,000 kW steam power station uses coal of calorific value 15,000 kcal per kg. If the coal consump- tion per kWh is 0-5 kg and the load factor of the station is 40%, calculate (i) the overall efficiency (if) coal consumption per day. 1(0) 28-7% (ii) 312 tons] 4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value of 6950 kcal/kg, calculate: (1) the coal consumption per kWh, (inthe coal consumption per day. 100-413 kg (i) 238 tons]

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

See similar textbooks

Related questions

Q: 144 About industrial piping, answer questions: WHAT IS THE PURPOSE OF THE FORM COEFFICIENT FOR THE…

A: The objective of the question is to understand the role of the form coefficient in the calculation…

Q: Consider a grinding operation which utilises the following process parameters: wheel speed of…

A: Note: Dear Student! As per our guidelines, we are only allowed to answer a single question. Kindly…

Q: Comparing the processes of tube drawing and tube sinking: a tube sinking use a mandrel b…

A: In tube drawing operation thin walled tubes are manufactured by progressively changing the wall…

Q: How can the direction of shear flow be established?

A: In solid mechanics, the shear flow is defined as the flow when the transverse shear force acts on a…

Q: How the forced vibrations can arise?

A: When a body vibrates due to the influence of external periodic force, then this type of vibrations…

Q: 9. The top view shows a bend radius of the thin metal. Would a bend radius of 1/8" meet the…

A: If the bend radius lies with in the given range then it will meet the requirements. 18"=0.125" The…

Q: Investigate and describe the different types of fluidization. Mention at least two examples of…

A: Fluidization : In the Fluidization process, The solids are caused to behave like a fluid in terms of…

Q: For step one, I got the same values but negative

Q: could you plz take a photo of the solution, the solution above isn't clear, the words are all put…

A: Answer is slightly different because in the existing solution, loss coefficient due to 50 % gate…

Q: Calculate the temperature at the end of the heat addition process.

A: Ans Given Now calculate the volume at point 1 using ideal gas law equation asNow calculate the…

Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

SHOW YOUR COMPLETE SOLUTION

3. A 65,000 KW steam power station uses coal of calorific value 15,000 kcal per kg. If the coal consump-
tion per kWh is 0-5 kg and the load factor of the station is 40%, calculate (f) the overall efficiency (if)
coal consumption per day.
(i) 28-7% (ii) 312 tons]
4. A 60 MW steam power station has a thermal efficiency of 30%. If the coal burnt has a calorific value of
6950 kcal/kg, calculate:
(1) the coal consumption per kWh.
(in)the coal consumption per day.
10) 0-413 kg (ii) 238 tons)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Determining the given data

VIEW

Step 2: Finding coal consumption per day

VIEW

Step 3: Finding overall efficiency

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Example 1.3 160 MW. Its annual load factor is 0.6. The coal consumption is 1 kg per kWh of energy A thermal power plant of 210 MW capacity has the maximum load of generated and the cost of coal is Rs 450.00 per tonne. Calculate (a) the annual revenue earned if energy is sold at Re 1 per kWh and (b) the capacity factor of the plant.
A gasoline truck engine takes in 10,000 J of heat and delivers 2,000 J of mechanical work per cycle. What is the thermal efficiency of this engine?
A cycle has a qin=350Btu/lbm, and a thermal efficiency of 74%. In this case, the network produced by the cycle is most likely: 320 Btu/lbm 90 Btu/lbm 260 Btu/lbm 350 Btu/lbm
This is Problem 13 of Chapter 3 in Sustainable Energy by Richard Dunlap, 2nd Edition. I need help solving it: A coal-fired generating station has an efficiency of 38% and produces an average electrical output of 1000 MWe.(a) How much coal does it burn per second (kg/s)? Assume the coal is bituminous.(b) How much heat (in joules) is released to the environment per second?(c) How many liters of water at 20°C could the heat in part (b) boil (at STP) per second? For c, here is my idea: use Q = mc(change in T). Here change in T is (100 C - 20 C) or 80 C and c = 4200 J/(kg C) so I can solve for m. Question: I need the density of water to find liters, but density changes with temperature. So, do I use the regular 1000 kg/m^3 or something else?
Suppose you have two kettles – a plug-in electric kettle and a stovetop kettle. The electric kettle uses electricity from a natural gas fired powerplant, while you boil water in your stovetop kettle on a natural gas burner. a) Based on the following information, which of these kettles demonstrates a higher energy efficiency (i.e., which is more efficient at using energy from fuel to heat water)? Please calculate the efficiencies of each kettle and express answers as percentages. -The natural gas power plant converts chemical energy of the natural gas to electricalenergy with 58% efficiency. -High-voltage power lines from the power plant to your house convey electricity with92% efficiency. -The electric kettle converts electrical energy to thermal energy in the water with 85%efficiency (the other 15% heats up the kettle itself). -The stove burner converts chemical energy of natural gas to thermal energy with 98%efficiency (the other 2% is light). -The stovetop kettle transfers 35% of…
A group is considering installing a solar power station and has asked you for your recommendation if it should be a photovoltaic system or a solar thermal system. At this stage you are asked not to include cost factors. The single point design condition they have given you is for an incident solar radiation on the collector of 550 W/m2, a surrounding temperature of 18 C. The dead state for this problem should be taken as To = 291 K, Po = 1 bar. You can perform your analysis at steady state conditions. In addition to determining the power output and first law efficiency of the options, you have been requested to determine the exergy destroyed for each of them. The photovoltaic system has an efficiency of 0.15 defined as the power output/incident solar radiation. The basic photovoltaic collector is 1.1 m2 and losses heat from both the front and back surface. The edge area can be neglected. The convective heat transfer coefficient is 10 W/m2 K. The inverter and signal…
A group is considering installing a solar power station and has asked you for your recommendation if it should be a photovoltaic system or a solar thermal system. At this stage you are asked not to include cost factors. The single point design condition they have given you is for an incident solar radiation on the collector of 550 W/m2, a surrounding temperature of 18 C. The dead state for this problem should be taken as To = 291 K, Po = 1 bar. You can perform your analysis at steady state conditions. In addition to determining the power output and first law efficiency of the options, you have been requested to determine the exergy destroyed for each of them. The photovoltaic system has an efficiency of 0.15 defined as the power output/incident solar radiation. The basic photovoltaic collector is 1.1 m2 and losses heat from both the front and back surface. The edge area can be neglected. The convective heat transfer coefficient is 10 W/m2 K. The inverter and signal conditioning…
A gasoline truck engine takes in 10,000 J of heat and delivers 2,000 J of mechanical work per cycle. . What other machines utilize the concept of heat engine in its operation? Give at least 3 examples.
I need help with the steps of this thermodynamics review sheet! Thank you A heat engine with a thermal efficiency of 45% rejects 1000 kJ/kg of heat to a low temperature sink. How much heat does it receive(kJ/kg)? How much work does it produce (kJ/kg)? If the cycle operates between temperatures of 400°C and 50°C, what is the maximum amount of work that this cycle can produce (kJ/kg)? A Carnot heat pump operates between 273 K and 313 K, determine its Coefficient of Performance.
A student buys a 5000 Btu window air conditioner for his apartment bedroom. He monitors it for one hour on a hot day and determines that it operates approximately 60 percent of the time (duty cycle = 60 percent) to keep the room at nearly constant temperature. (a) Showing all your work and using unity conversion ratios, calculate the rate of heat transfer into the bedroom through the walls, windows, etc. in units of Btu/h and in units of kW. (b) If the energy efficiency ratio (EER) of the air conditioner is 9.0 and electricity costs 7.5 cents per kilowatt-hr, calculate how much it costs (in cents) for him to run the air conditioner for one hour.
Problem 2 . (II) An ideal heat pump is used to maintain the inside temperature of a house at Tin = 22°C when the outside temperature is Tout Assume the heat pump does work at a rate of 1700 W. Also assume that the house loses heat via conduction through its walls and other surfaces at a rate given by (650 W/C°) (Tin - Tout). (a) For what outside temperature would the heat pump have to operate at all times in order to maintain the house at an inside temperature of 22°C? (b) If the outside temperature is less than you just calculated, what happens? (c) If the outside temperature is 8°C, what percentage of the time does the heat pump have to operate in order to maintain the house at an inside temperature of 22°C? (TT)
In one cycle, a heat engine absorbs 1.71 kJ from a hot reservoir at 277°C and expels 1.18 kJ to a cold reservoir at 27°C. (a) What is the engine's thermal efficiency (in percent)? % (b) How much work is done by the engine (in J) in each cycle? (c) What is the engine's power output (in kW) if each cycle lasts 0.302 s? kW Need Help? Read It