The Energy-saving Benefit Evaluation Methods of the Grid Construction Project Based on Life Cycle Cost Theory

Li, Wei; Jin-zhong, Zhu; Zhu, Z. A.

doi:10.1016/j.egypro.2012.02.088

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…Integrating life cycle optimization options and opportunities in DC and OM supply chains: life cycle optimizations largely revolve around selection of materials (Mroueh et al, 2001), costs (Li et al, 2012) and energy efficiency (Aye et al, 2012). While life cycle optimization strategies have been studied, the gap is the optimization opportunities between the two supply chains.…”

Section: Integration Of DC and Om Supply Chainsmentioning

confidence: 99%

Strategies for integrating design and construction and operations and maintenance supply chains in Singapore

Ling

Toh

Kumaraswamy³

et al. 2014

Structural Survey

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Purpose -The purpose of this paper is to investigates strategies for achieving better integration between the design and construction (DC) and operation and maintenance (OM) supply chains in Singapore. The specific objectives are to: discover the goals that stakeholders want to achieve in integrating the supply chains; identify the stakeholders that play important integration role in each supply chain; and investigate the effective strategies that may yield better integration of the supply chains. Design/methodology/approach -Data were collected using a structured questionnaire. The sampling frame was Singapore-based clients, consultants and construction firms involved in developing and managing built facilities. Findings -The most important strategies for integrating the supply chains are: sharing relevant information and addressing sustainability issues jointly with DC and OM teams; and integrating life cycle optimization options in DC and OM supply chains.Research limitations/implications -The limitations include low response rate, and the subjective nature of a Likert scale which was used to rate importance levels. The research implication is that activities in DC and OM supply chains can indeed be integrated, and this leads to higher value for all stakeholders. Practical implications -The practical implication is that stakeholders could adopt the effective strategies identified by this study to foster closer integration of the two supply chains in Singapore. Teams from both supply chains need to work jointly instead of consecutively. Sharing information through an online platform by setting up a web-based database may help in their collaboration. It is also important that common goals need be set out at the onset, preferably by clients of built facilities, with strong buy-in by main contractors and consultants, so as to achieve better value. Originality/value -The study revealed effective strategies for integrating DC and OM supply chains.

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Section: Integration Of DC and Om Supply Chainsmentioning

confidence: 99%

Strategies for integrating design and construction and operations and maintenance supply chains in Singapore

Ling

Toh

Kumaraswamy³

et al. 2014

Structural Survey

View full text Add to dashboard Cite

show abstract

“…The life cycle costing method reflects the expenses in each phase of the building (Li, J. Zhu, & Z. Zhu, 2012). To simplify the economic considerations the current model focuses on the costs of initial construction and the repair costs at the time when the degradation factors show visible degradation signs.…”

Section: Cost Component Of the Model: Economic Assessment Valuementioning

confidence: 99%

The Economic Relevance of on-Site Construction Activities With the External Thermal Insulation Composite System (Etics)

Sulakatko

Lill

2019

International Journal of Strategic Property Management

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The systematic inadequacies of the External Thermal Insulation Composite System (ETICS), which occur during the construction phase, increase the financial risk for stakeholders, while reducing the long-term durability of the facade. The economic effect of on-site shortcomings can be reduced if the most significant on-site activities are recognised. The current paper develops an economic relevance assessment model for on-site construction activities of ETICS to increase economic rationality of resource allocation and emphasise the high-risk systematic shortcomings. The economic assessment model quantifies the financial risk of the on-site degradation factors with the method of modified Failure Mode Effects Analysis (FMEA). The data collection is followed by experts’ judgments and is validated with the Delphi technique. The study reveals that degradation factors in the early phases of construction have the highest relevance due to high costs of repair as well as high occurrence possibility and higher detection difficulty due to rapid coverage. Ninety percent of the shortcomings appear during the first five years of completion of the construction. The on-site failures occurring during the application of mechanical anchors and finishing layer cause the lowest financial risk. The model enables the economic effect of the on-site activities to be prioritised for better resource allocation.

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“…An economic assessment value is developed to quantify future repair costs of specific degradation factors. In regard to the life cycle costing method, which reflects the expenses in each phase of the building [74], the current model focuses only on the future repair costs of the shortcoming of a construction process activity. The discounted repair costs are leveraged with the construction cost index for new residential buildings provided by Eurostat to maintain comparability during economic fluctuations.…”

Section: Economic Risk Priority Numbermentioning

confidence: 99%

Modelling the Technical–Economic Relevance of the ETICS Construction Process

Sulakatko

2018

Buildings

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The increased number of energy efficiency requirements of the European Union has increased the renovation rate of apartment buildings. The external thermal insulation composite system (ETICS) is often used to upgrade the façade. However, the construction process shortcomings very often cause defects shortly after completion. This paper develops a technical-economic relevance assessment model of the onsite degradation factors for better quality assurance in an SME. The model quantifies the technical significance of the degradation factors along with the future repair costs. The technical severity of 103 factors is evaluated by 12 experts, and the data is validated with the Friedman's test. The occurrence ratio, detectability, and latency period are foreseen by five experts and validated with the Delphi technique. The results of the three sample simulations emphasize the activities during substrate preparation and application of adhesive as well as a base coat with reinforcement mesh. The application of a finishing coat and installation of insulation plates have less relevance. It is recommended to upskill the craftsmen in regard to working with mixtures as the shortcomings are covered simultaneously and the failure detection period is short. The measures to protect against external weather effects are recommended due to their relatively high impact. Half of the shortcomings appear during the first two years.

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The Energy-saving Benefit Evaluation Methods of the Grid Construction Project Based on Life Cycle Cost Theory

Cited by 12 publications

References 1 publication

Strategies for integrating design and construction and operations and maintenance supply chains in Singapore

Strategies for integrating design and construction and operations and maintenance supply chains in Singapore

The Economic Relevance of on-Site Construction Activities With the External Thermal Insulation Composite System (Etics)

Modelling the Technical–Economic Relevance of the ETICS Construction Process

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