Essay On Life Cycle Assessment

1962 Words4 Pages

Introduction

Life cycle assessment (LCA) is a method of evaluation used to assess the environmental impacts of technologies from ‘cradle to grave’ and may be performed on both products and processes (Huntzinger & Eatmon, 2008). The purpose of this report is to critical assess selected published studies on a product life cycle assessment. The selected product for this report is Cement and the following is the selected published studies which are to be critically assessed:
A life-cycle assessment of Portland cement manufacturing: comparing the traditional process with alternative technologies (2008)
Deborah N. Hintzinger, Thomas D. Eatmon
Implementation of best available techniques in cement manufacturing: a life cycle assessment study (2012)
Cesar Valderrama, Ricard Granados, Jose Luis Cortina, Carles M Gasol, Manel Guillem

Assessment of the studies

In order to assess the studies, the most obvious primary objective to be ensured is that the life cycle assessment is consistent with the standard in which it adheres and refers to. Both studies refer to the same standard (ISO 14044) which aid in comparing and assessing each study lending to the critical assessment of each. Each effective LCA shall entail the following:
1. Phases goal and scope definition
2. Inventory analysis
3. Impact assessment
4. And interpenetration of results
Product and process LCAs should use the same functional unit and equivalent methodological considerations such as performance, system boundaries, data quality, allocation procedures, decisions rules and impact assessment. It must also be noted that any differences between systems/products or processes regarding any of the above shall be identified and reported. The following critically analyses both studie...

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...sociated with the use of BAT for the clinker manufacturing process. Evaluating the environmental performance and that considering LCA methodology proves a suitable process. The LCA provides a vast range of improvement through the installation of BAT techniques and that is highlighted in the damage assessment and the comparison to that of older production lines.
Concluding the critical review of such studies, each report abides by the accordance of the relevant ISO standards. With the acceptance of a few minor details and the limitations of the studies, the report proves adequate, in the sense they are fit for purpose and quite transparent and consistent is terms of reporting. Each of the facts presented and evaluateions made are of a factual basis which in effect holds great scientific and technical stature.
References
(Weidema, 1997)
(Huntzinger & Eatmon, 2008)

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