Homework Help is Here – Start Your Trial Now!
Business
Economics
3. You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steam electric plant. In this regard, cooling ponds and once through cooling systems have been eliminated from consideration because of their adverse ecological effects. It has been decided to use cooling towers to dissipate waste heat to the atmosphere. 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 of natural draft. Consequently, there are four basic cooling tower designs that o considered. Assuming that the cost of capital to the utility company is 12% per y job is to recommend the best alternative (i.e., the least expensive during the se in view of the data in the table below. Further, assume that each alternative is satisfactorily removing waste heat from the condensers of a 200-MW power pla noneconomic factors can you identify that might also play a role in the decision-man process?

3. You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steam electric plant. In this regard, cooling ponds and once through cooling systems have been eliminated from consideration because of their adverse ecological effects. It has been decided to use cooling towers to dissipate waste heat to the atmosphere. 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 of natural draft. Consequently, there are four basic cooling tower designs that o considered. Assuming that the cost of capital to the utility company is 12% per y job is to recommend the best alternative (i.e., the least expensive during the se in view of the data in the table below. Further, assume that each alternative is satisfactorily removing waste heat from the condensers of a 200-MW power pla noneconomic factors can you identify that might also play a role in the decision-man process?

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
See similar textbooks
icon
Related questions
Question
3. You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steam electric plant. In this regard, cooling ponds and once through cooling systems have been eliminated from consideration because of their adverse ecological effects. It has been decided to use cooling towers to dissipate waste heat to the atmosphere. 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 of natural draft. Consequently, there are four basic cooling tower designs that o considered. Assuming that the cost of capital to the utility company is 12% per y job is to recommend the best alternative (i.e., the least expensive during the se in view of the data in the table below. Further, assume that each alternative is d satisfactorily removing waste heat from the condensers of a 200-MW power pla noneconomic factors can you identify that might also play a role in the decision-man process? 79 Alternative Types of Cooling Towers for a 200-Megawatt Fossil-Fired Power Plant Operating at Full Capacity a Alternative Wet Tower Wet Tower Dry Tower Mech. Draft Dry Tower Natural Draft Mech. Draft $3 million 40 200-hp induced-draft fans 20 150-hp pumps $0.15 million Natural Draft Initial cost Power for I.D. $8.7 million $5.1 million $9.0 million None 20 200-hp I.D. fans None fans Power for pumps Mechanical maintenance/year Service life 20 150-hp pumps 40 100-hp pumps 40 100-hp pumps $0.17 million $0.10 million $0.12 million 30 years 30 years 30 years 30 years Market value a 100 hp = 74.6 kw; cost of power to plant is 2.2 cents per kWh or kilowatt-hour; induced-draft fans and pumps operate around the clock for 365 days/year (continuously). Assume that electric motors for pumps and fans are 90% efficient.
Transcribed Image Text:3. You have been asked to evaluate the economic implications of various methods for cooling condenser effluents from a 200-MW steam electric plant. In this regard, cooling ponds and once through cooling systems have been eliminated from consideration because of their adverse ecological effects. It has been decided to use cooling towers to dissipate waste heat to the atmosphere. 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 of natural draft. Consequently, there are four basic cooling tower designs that o considered. Assuming that the cost of capital to the utility company is 12% per y job is to recommend the best alternative (i.e., the least expensive during the se in view of the data in the table below. Further, assume that each alternative is d satisfactorily removing waste heat from the condensers of a 200-MW power pla noneconomic factors can you identify that might also play a role in the decision-man process? 79 Alternative Types of Cooling Towers for a 200-Megawatt Fossil-Fired Power Plant Operating at Full Capacity a Alternative Wet Tower Wet Tower Dry Tower Mech. Draft Dry Tower Natural Draft Mech. Draft $3 million 40 200-hp induced-draft fans 20 150-hp pumps $0.15 million Natural Draft Initial cost Power for I.D. $8.7 million $5.1 million $9.0 million None 20 200-hp I.D. fans None fans Power for pumps Mechanical maintenance/year Service life 20 150-hp pumps 40 100-hp pumps 40 100-hp pumps $0.17 million $0.10 million $0.12 million 30 years 30 years 30 years 30 years Market value a 100 hp = 74.6 kw; cost of power to plant is 2.2 cents per kWh or kilowatt-hour; induced-draft fans and pumps operate around the clock for 365 days/year (continuously). Assume that electric motors for pumps and fans are 90% efficient.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Carbon Tax
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, economics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
Economics
ISBN:
9780190931919
Author:
NEWNAN
Publisher:
Oxford University Press
Principles of Economics (12th Edition)
Principles of Economics (12th Edition)
Economics
ISBN:
9780134078779
Author:
Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher:
PEARSON
Engineering Economy (17th Edition)
Engineering Economy (17th Edition)
Economics
ISBN:
9780134870069
Author:
William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher:
PEARSON
Principles of Economics (MindTap Course List)
Principles of Economics (MindTap Course List)
Economics
ISBN:
9781305585126
Author:
N. Gregory Mankiw
Publisher:
Cengage Learning
Managerial Economics: A Problem Solving Approach
Managerial Economics: A Problem Solving Approach
Economics
ISBN:
9781337106665
Author:
Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:
Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-…
Managerial Economics & Business Strategy (Mcgraw-…
Economics
ISBN:
9781259290619
Author:
Michael Baye, Jeff Prince
Publisher:
McGraw-Hill Education
SEE MORE TEXTBOOKS