Total Cost Assessment methodology

Economic and panel approaches are arguably the most common methodologies in aggregating metrics. In the economic approach, metrics are weighted in terms of their associated monetary costs and benefits, both internal and external to the company. AIChE s Total Cost Assessment methodology (TCA, see Section 6.2) and the Environmental Priority Strategy in product development (EPS) (Steen, 1999) are tools that may be used to assess environmental and sustainability costs and benefits. 

AIChE, Total Cost Assessment Methodology, American Institute of Chemical Engineers Center for Waste Reduction Technologies, New York, NY, July 1999. 

Constable, D. Total Cost Assessment Methodology, Internal Managerial Decision Making Tool AIChE/CWRT New York, 1999. 

Little AD (2000) Total cost assessment methodology internal managerial decision making tool. Center for waste reduction technologies, American Institute of Chemical Engineers (AIQiE), New York, http // www.aiche.org/sites/default/files/docs/embedded-pdf/ AIChE-IFS-TCAM-Manual web.pdf... 

Section 6.2.3 is called Total Cost Assessment Looking at All the Costs Involved with a Decision. Traditional decision-making typically focuses on direct and indirect costs that appear on the balance sheet. The TCA model defines three additional cost types, contingent liabilities and internal and external intangibles. A methodology for developing total costs related to environmental impacts is discussed. 

D. Koch, Dow Chemical Pilot of Total Business Cost Assessment Methodology A Tool to Translate EHS Right Things To Do into Economic Terms, Environmental Progress, 21 (1), 20-28 (2002). 

The concept of COI was first developed by Rice (Rice 1966, 1967 Rice and Cooper 1967 Rice et al. 1985). It assumes that resources could be used for another purpose if a disease did not exist. Figure 1 demonstrates the basic concept of COI. Most health economic studies assessing the total costs of a disease use this methodology (e.g., Keith and Shackleton 2006 Welte et al. 2000 Leidl et al. 1999 Henke et al. 1997 Xie et al. 1996 Harwood et al. 1983 Hodgson and Meiners 1979). 

Recently, a conceptual design-based simulation methodology has been developed for the comparative economic assessment of membrane reactors with conventional catalytic reactors [388]. A basic assumption to the simulation smdy is that the chosen membranes do possess durability and performance characteristics as desired for industrial-scale processing. For the two illustrative dehydrogenation reaction schemes, the cost contribution of membranes and other auxiliary equipment is estimated not to exceed 20% of the total costs. Besides variable and fixed costs in processes, environmental impacts (energy and material inputs, efficiency and environmental releases) associated with manufacturing. 

ABSTRACT The focus of this paper is to provide decision support for the selection of a Crew Transfer Vessel (CTV) fleet for the offshore wind farm maintenance operations. This is achieved through analyses of environmental conditions, investigation of failures, and assessment of vessel operations. The developed methodology and analysis enable operators to decide the specification of CTVs which will bring the optimum financial benefit, considering both the enhancement of the offshore wind farm power generation as well as the minimisation of the total O M cost. 

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