Investment Economics of Industrial Gas Turbines

1977 ◽  
Author(s):  
M. C. Doherty
Keyword(s):  
Economic Evaluation ◽  
Cash Flow ◽  
Gas Turbines ◽  
Energy System ◽  
Operating Costs ◽  
Base Case ◽  
Engineering System ◽  
Discounted Cash Flow ◽  
Advantages And Disadvantages ◽  
Industrial Gas Turbines

The application of industrial gas turbines generally requires more than a detailed energy system analysis. Usually the engineer must “prove-in” his project design to assure that it meets management’s criteria for profitability Several different economic evaluation methods have evolved and there is no one universally accepted practice. This paper illustrates a method of reducing a detailed engineering system design, such as an industrial energy system, to an economic evaluation. This includes developing the minimum investment base case and one or more alternatives which trade off higher first costs for lower operating costs, and then reducing all cases to cold cash — investment and operating costs. Next, three economic evaluation yardsticks are discussed: payout, discounted cash flow, and total owning and operating costs using fixed charges on investment. Advantages and disadvantages of each are pointed out. This includes a discussion of taxes, depreciation, investment tax credit, cash flow, and the time value of money. Finally, computer methods of discounted cash flow are illustrated including a problem with variable annual operating costs. This sets the stage for a “hands on” workshop session using a computer terminal following the presentation.

scholarly journals The research of the schemes of regional distributed energy system

2018 ◽  
Vol 175 ◽  
pp. 04007
Author(s):  
LU Jin ◽  
YAN Tao ◽  
CAI Wen ◽  
Yang Hong-yan ◽  
WAN Zhong-hai
Keyword(s):  
Gas Turbines ◽  
Energy Supply ◽  
Energy System ◽  
Small Region ◽  
Supply System ◽  
Pollutant Emissions ◽  
Distributed Energy ◽  
Energy Supply System ◽  
Advantages And Disadvantages ◽  
Distributed Energy System

The distributed energy generation system is one of the main forms of the second-generation energy system currently. Three kinds of viable schemas of distributed energy supply system for nine users of the small region heat of Yangpu area combining with urban heating were proposed in this thesis, in which the gas turbines were selected. By analyzing the heat economy and pollutant emissions, the advantages and disadvantages of each schema were found out and the relatively better one was selected ultimately. Finally, some possible development trends and the prospects of the distributing energy supply system were also related and some complementary proposals were to table for some aspects of the system.

Inspection, Maintenance and Field Repair of Heavy Duty Industrial Gas Turbines

1974 ◽  
Author(s):  
M. Hartmann ◽  
R. Robben ◽  
P. Hoppe
Keyword(s):  
Gas Turbines ◽  
Operating Costs ◽  
Overhead Crane ◽  
Heavy Duty ◽  
Special Equipment ◽  
Critical Areas ◽  
Industrial Gas Turbines ◽  
Proper Design ◽  
Inspection And Maintenance ◽  
Inner Parts

The expenditures for inspection and maintenance of gas turbines are an important part of the total owning and operating costs. Maintenance outage time should be kept to a minimum. A proper design with adequate ports facilitates visual and boroscope inspection of critical areas. Maintenance outage time can be considerably reduced by special equipment which allows inspection and replacement of bearings and combustor inner parts and balancing of rotors without major disassembly of the unit. The advantages of an indoor installation with overhead crane with respect to maintenance are also discussed in this paper.

Methodologies and Techniques for Determining the Value of an Aircraft

2020 ◽  
pp. 036119812095841
Author(s):  
Bijan Vasigh ◽  
Farshid Azadian ◽  
Kamran Moghaddam
Keyword(s):  
Cash Flow ◽  
Flow Analysis ◽  
Operating Costs ◽  
Asset Valuation ◽  
Discounted Cash Flow ◽  
Valuation Model ◽  
Exogenous Factors ◽  
New Generation ◽  
Operating Revenue

Aircraft valuation and the estimation of an accurate aircraft price is undoubtedly a challenging task that has significant consequences for airlines. This paper presents an asset valuation model to show how a series of endogenous as well as exogenous factors can influence the value of an aircraft. Specifically, a discounted cash flow methodology is used to forecast the valuation of an old or new generation aircraft. Both total operating revenue and aircraft operating costs are taken into account to devise a reliable pre-tax profit measurement that is used as the basis of the discounted cash flow analysis. A sensitivity analysis based on Monte Carlo simulation is utilized to identify which factors have a more significant influence on the suggested aircraft value. Therefore, it addresses how value fluctuates in response to economic fluctuations. Indeed, the calculated value of an aircraft highly depends on the underlying assumptions used. The calculated value is compared with available data in a case study for verification.

Evaluation and Application of Data Sources for Assessing Operating Costs for Mechanical Drive Gas Turbines in Pipeline Service

2000 ◽  
Vol 122 (3) ◽  
pp. 462-465 ◽  
Author(s):  
Anthony J. Smalley ◽  
David A. Mauney ◽  
Daniel I. Ash ◽  
Sam L. Clowney ◽  
George P. Pappas
Keyword(s):  
Gas Turbines ◽  
Motor Drives ◽  
Operating Costs ◽  
Fuel Gas ◽  
Electric Motor Drives ◽  
The Public ◽  
Reciprocating Engine ◽  
Operations And Maintenance ◽  
Industrial Gas Turbines ◽  
Prime Movers

This paper evaluates and demonstrates how the public domain data provided by individual interstate pipeline companies to FERC, when combined with individual company equipment lists, can be used to regress industry information on cost of operations and maintenance, fuel gas used, and cost of fuel and power. The paper describes the methods of analysis and identifies their limitations. The paper presents results of such regression analysis as average and variance of cost and fuel usage for industrial gas turbines and aeroderivative gas turbines. It provides further comparisons between gas turbine prime movers, reciprocating engine prime movers, and electric motor drives, and presents annual costs per installed horsepower as a function of turbine size. The paper is based on work performed for PRC International and the Gas Research Institute. [S0742-4795(00)01003-6]

scholarly journals Problems and Operating Experiences With Gas Turbines Burning Residual and Crude Oils

1978 ◽  
Author(s):  
P. C. Felix
Keyword(s):  
Crude Oil ◽  
Gas Turbines ◽  
Operating Costs ◽  
Crude Oils ◽  
Turbine Inlet ◽  
Industrial Gas Turbines

This paper presents the most important problems which have to be expected when burning residuals and crudes in industrial gas turbines. Solutions for these problems are always influencing the operating costs of the powerplant. Careful economical studies should, therefore, be conducted before one or another fuel is selected. Finally, operating experiences with 14 BBC gas turbines located in Riyadh (Kingdom of Saudiarabia) burning local Khurais crude oil with turbine inlet temperatures of 650 to 850 C are presented.

scholarly journals Evaluation and Application of Data Sources for Assessing Operating Costs for Mechanical Drive Gas Turbines in Pipeline Service

1999 ◽  
Author(s):  
Anthony J. Smalley ◽  
David A. Mauney ◽  
Daniel I. Ash ◽  
Sam L. Clowney ◽  
George P. Pappas
Keyword(s):  
Gas Turbines ◽  
Motor Drives ◽  
Operating Costs ◽  
Fuel Gas ◽  
Electric Motor Drives ◽  
The Public ◽  
Reciprocating Engine ◽  
Operations And Maintenance ◽  
Industrial Gas Turbines ◽  
Prime Movers

This paper evaluates and demonstrates how the public domain data provided by individual interstate pipeline companies to FERC, when combined with individual company equipment lists, can be used to regress industry information on cost of operations and maintenance, fuel gas used, and cost of fuel and power. The paper describes the methods of analysts and identifies their limitations. The paper presents results of such regression analysis as average and variance of cost and fuel usage for industrial gas turbines and aeroderivative gas turbines. It provides further comparisons between gas turbine prime movers, reciprocating engine prime movers, and electric motor drives, and presents annual costs per installed horsepower as a function of turbine size. The paper is based on work performed for PRC International and the Gas Research Institute.

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