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Title: Life-cycle costing for cleanroom construction
Authors: YANG LIU
Keywords: cleanroom, life cycle cost, regression model, estimation, cost-efficiency, decision-making
Issue Date: 16-Jan-2004
Citation: YANG LIU (2004-01-16). Life-cycle costing for cleanroom construction. ScholarBank@NUS Repository.
Abstract: Cleanrooms are needed in many manufacturing processes that range from semiconductor manufacturing to life sciences. As mechanically intensive facilities, cleanroom consumes large amounts of energy to maintain its defined environment, which in turn requires high capital and operation cost. This has made cost-efficiency an important consideration in cleanroom design. Thus, it is more logical to consider the life cycle cost rather than only the initial capital cost when evaluating a cleanroom project. It is hypothesized that the life cycle cost of a cleanroom depends on certain design parameters. Based on a regression model, 12 sample cleanroom projects are selected for study. Preliminary investigations reveal that six parameters contribute most to the life cycle cost, namely, floor area, corresponding cleanliness class, make-up air volume, exhaust air volume, type of air ventilation and type of air return. The internal relationship between these parameters and cleanroom life cycle cost are presented.The research findings contribute to cleanroom investment budgeting and design in two ways. First, the major cost factors are identified for greater cost control. Second, a cleanroom database is available for comparative cost analysis.
Appears in Collections:Master's Theses (Open)

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