You have been asked to evaluate the economic implications of various methods for cooling condenser effluents froma 200-MW steamelectric plant. There are two basic types of cooling towers: wet and dry. Furthermore, heat may beremoved from condenser water by (1) forcing (mechanically) air through the tower or (2) allowing heat transfer to occurby making use of natural draft. Consequently, there are four basic cooling tower designs that could be considered.Assuming that the cost of capital to the utility company is 10% per year, your job is to recommend the bestalternative (i.e., the least expensive during the service life). Further, assume that each alternative is capable ofsatisfactorily removing waste heat from the condensers of a 200-MW power plant. What noneconomic factors can youidentify that might also play a role in the decision-making process?Click the icon to view the alternatives description.Click the icon to view the interest and annuity table for discrete compounding when i = 10% per year.The AW of Wet Tower, Mechanical Draft is $The AW of Wet Tower, Natural Draft is $The AW of Dry Tower, Mechanical Draft is $The AW of Dry Tower, Natural Draft is $(Round to the nearest dollar.)(Round to the nearest dollar.). (Round to the nearest dollar.). (Round to the nearest dollar.) Initial costPower for I.D. fansPower for pumpsMechanical maintenance/yearService lifeMarket valueWet TowerMech. Draft$2.8 million40 200-hp I.D. fans20 150-hp pumps$0.12 million30 years0AlternativeWet TowerNatural Draft$9.5 millionNone20 150-hp pumps$0.11 million30 years0Dry TowerMech. Draft$4.7 million20 200-hp I.D. fans40 100-hp pumps$0.13 million30 years0Dry TowerNatural Draft$9.1 millionNone40 100-hp pumps$0.10 million30 years0100 hp = 74.6 kW; cost of power to plant is 2.2 cents per kWh or kilowatt-hour; induced-draft fans and pumps operatearound the clock for 365 days/year (continuously). Assume that electric motors for pumps and fans are 90% efficient.

Answered: Image /qna-images/answer/bf53b5a9-bf12-4b3a-8cb0-1994606b4b20.jpg

You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steamelectric plant. There are two basic types of cooling towers: wet and dry. Furthermore, heat may be removed from condenser water by (1) forcing (mechanically) air through the tower or (2) allowing heat transfer to occur by making use of natural draft. Consequently, there are four basic cooling tower designs that could be considered. Assuming that the cost of capital to the utility company is 10% per year, your job is to recommend the best alternative (i.e., the least expensive during the service life). Further, assume that each alternative is capable of satisfactorily removing waste heat from the condensers of a 200-MW power plant. What noneconomic factors can you identify that might also play a role in the decision-making process?

You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steamelectric plant. There are two basic types of cooling towers: wet and dry. Furthermore, heat may be removed from condenser water by (1) forcing (mechanically) air through the tower or (2) allowing heat transfer to occur by making use of natural draft. Consequently, there are four basic cooling tower designs that could be considered. Assuming that the cost of capital to the utility company is 10% per year, your job is to recommend the best alternative (i.e., the least expensive during the service life). Further, assume that each alternative is capable of satisfactorily removing waste heat from the condensers of a 200-MW power plant. What noneconomic factors can you identify that might also play a role in the decision-making process?

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

Chapter48: Cooling Towers And Pumps

Section: Chapter Questions

Problem 19RQ: What is meant by encapsulation and explain how it applies to cooling towers.

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