摘要:

A general model for decision evaluation is presented which consists of engineering, economic, and decision evaluation submodels. The methodology utilizes interval mathematics, which offers a new approach to modeling parameter uncertainty and transforms results from the engineering and economic models into indices that are used for performing pairwisc comparisons between alternative designs A distribution case study which considers eight alternative designs is presented. Sample results are presented in terms of the proposed decision evaluation vector and display.

ISSN:0013-791X    

DOI:10.1080/00137919408903124

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Non-residential customers of electric utilities often qualify to have their monthly bill amount computed using two different rate structures. Assume Schedule A is the rate structure which applies when a customer's peak power demand is less then an assigned value X, while Schedule B applies when ( he peak power demand is above X. The Schedule A rate structure consists of a fiat( uniform) cost component plus a second cost component proportional to ( he energy consumed. The Schedule B rate structure includes, in addition to these two types of charges, a third cost component which is proportional to the peak power demand. Also, non-residential customers with energy usage below a certain defined level are termed Type I users, while those customers who operate above this threshold are termed Type II users. In this analysis it was found that as the peak power demand is reduced, while holding energy usage constant, that Type I users are rewarded when Schedule B gives way to Schedule A, whereas Type II users suffer a penalty. Both elementary and advanced strategies are given for the reduction of utility bills when the user has the flexibility of moving between the two schedules. A numerical example is provided.

ISSN:0013-791X    

DOI:10.1080/00137919408903125

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

This paper presents a framework for developing a firm's environmental policy. A model is constructed for expected profits which incorporates the effects of both regulatory action and consumer behavior. A manager must allocate resources to both the lobbying and the product modification budgets so that the expected profits are maximized. Adaptive learning process relate the budgeting decisions to the expected profit function. The model is used to analyze both the unconstrained and constrained budgeting problems. In both problems, the product modification budget is significant in the overall environmental strategy for the firm. If this budget is ignored, then the resulting budgeting solution is suboptimal. This budgeting tool is demonstrated by a simple example.

ISSN:0013-791X    

DOI:10.1080/00137919408903126

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Electronic spreadsheets are ideally suited for engineering economic analysis. They increase effectiveness both in the classroom and on the job. Spreadsheet advantages include low investment in learning time, low cost, and minimum total solution/presentation time. Their use is contrasted with closed form analysis, custom written and prepackaged software. A Monte Carlo simulation example is given to demonstrate the ease of modeling complex problems. Suggestions for incorporating spreadsheets into the classroom are also presented.

ISSN:0013-791X    

DOI:10.1080/00137919408903127

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Computerized spreadsheets are quite useful in engineering economy. However, (he leading spreadsheet packages do not include functions for arithmetic gradients, although add-in packages may contain such functions. Spreadsheet functions which do not exist can be adapted to calculations of arithmetic gradients, as shown in this technical note. This technical note also briefly summarizes the financial functions available in three leading packages: Exceltm, Lotustm, and Quattro Protm.

ISSN:0013-791X    

DOI:10.1080/00137919408903128

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

In a previous paper Khan and Fiorino analyzed four energy saving projects. They found that use of the Capital Asset Pricing model to account for risk implied that the projects’ required rates of return were less than the return on riskless assets. Effectively lie projects bad negative risk. These negatively with macro economic activity. The current paper has two objectives: (1) to show that cafes of negative risk are rare and unimportant, and (2) to show that the assumption of negative covariance between energy price and the level of economic activity is incorrect.

ISSN:0013-791X    

DOI:10.1080/00137919408903129

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

ISSN:0013-791X    

DOI:10.1080/00137919408903130

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

ISSN:0013-791X    

DOI:10.1080/00137919408945393

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor