Maintenance Cost-Effectiveness of Expressways in the Anhui Province Based on Life Cycle Cost Analysis

CICTP 2015 ◽  
2015 ◽  
Author(s):  
Niya Dong ◽  
Fujian Ni
Author(s):  
Laxman Y. Waghmode ◽  
Ravindra S. Birajdar ◽  
Shridhar G. Joshi

It is well known that the pumps are the largest consumers of industrial motor energy and account for more than 25% of electricity consumption. The life cycle cost of a pump is the total lifetime cost associated with procurement, installation, operation, maintenance and its disposal. For majority of heavy usage pumps, the lifetime energy and/or maintenance cost will dominate the life cycle costs. Hence a greater understanding of all the cost components making up the total life cycle costs should provide an opportunity to achieve a substantial savings in energy and maintenance costs. This will further enable optimizing pumping system efficiency and improving pump and system reliability. Therefore in this context, the life cycle cost analysis of heavy usage pumps is quite important. This paper focuses on an application of a methodology of determining the life cycle cost of a typical heavy usage multistage centrifugal pump. In this case, all the cost components associated with the pump-set have been determined and classified under different categories. The data with regard to initial investment costs, operation costs, maintenance and repair costs and disposal costs for the pump considered for this case study was collected from the concerned pump manufacturer along with the unit cost of each component, quantity used and their weights. By applying the principles of reliability and maintainability engineering and using the data obtained from the design, manufacturing and maintenance departments, the component-wise values of MTBF (Mean Time Between Failures) and MTTR (Mean Time To Repair) were estimated. The results of the life cycle cost analysis of the specimen pump were compared with the life cycle costs of similar pumps reported in the literature. From this comparison of results, it can be concluded that, the initial cost of the pump is the only a fraction of the total life cycle cost. The operating cost of the pump dominates the life cycle costs especially in case of heavy usage pumps. The maintenance cost varies approximately from 0.6 to 2.5 times the initial cost of the pump. The life cycle cost of the pump varies approximately from 12 to 33 times the initial cost of the pump. The operation and maintenance cost is almost 92 to 97 per cent of the life cycle cost. The detailed analysis carried out in this paper is expected to provide guidelines to the pump manufactures/practicing engineers in selecting a heavy usage multistage centrifugal pump based on the total lifetime cost rather than only on initial price.


2010 ◽  
Vol 8 (3) ◽  
pp. 162-178 ◽  
Author(s):  
Anurag Shankar Kshirsagar ◽  
Mohamed A. El‐Gafy ◽  
Tariq Sami Abdelhamid

PurposeThe purpose of this paper is to evaluate the accuracy of life cycle cost analysis (LCCA) for institutional (higher education) buildings as a predictor of actual realised facility costs.Design/methodology/approachResearch methodology includes a comprehensive literature review to identify issues, best practices and implementation of LCCA in the construction industry. A case study was conducted to evaluate the accuracy of LCCA in predicting facility costs.FindingsNotwithstanding the benefits of LCCA, its adoption has been relatively slow for institutional buildings. The case study revealed that the average difference between estimated and actual construction cost is 37 per cent, whereas the average difference between the actual and estimated maintenance cost is 48 per cent. There is an average difference of 85 per cent in the actual and estimated administration cost.Research limitations/implicationsWhile limited to a few buildings, the case study underscores that LCCA methods should not be used for cost predictions of facility performance but rather for comparing total costs of alternative building features and systems, as well as building types. Sensitivity analysis also revealed that the selection of a discount rate would have less impact on recurring costs estimates compared to non‐recurring cost estimates. Facilities managers' involvement in LCCA technique developments and implementations will likely improve its performance during programming phases.Practical implicationsThe value of LCCA procedures is limited as a predictor of actual realised facility costs. Educational institutions can use the methods described in this paper to replicate the study and arrive at their own conclusions regarding the LCCA techniques and their potential use in programming stages.Originality/valueThe paper evaluated the accuracy of LCCA for institutional buildings and the potential of LCCA as an asset management tool for institutional buildings and provided suggestions to improve its adoption in facilities management.


2019 ◽  
Vol 145 (2) ◽  
pp. 04019006 ◽  
Author(s):  
Linyi Yao ◽  
Qiao Dong ◽  
Fujian Ni ◽  
Jiwang Jiang ◽  
Xianrong Lu ◽  
...  

Author(s):  
Arghya Dhabal

Abstract: A Life Cycle Cost Analysis (LCCA) is need to performed at the design period of the projects in order to be proficient to performed more profitable, to help take decision for type of pavement selection either flexible or rigid and also, to decide the comparative expense of different type of pavement. Specially for developing countries like India, due to insufficient funds for the project. However, now-a-days in India many infrastructure development projects like highways are being executed through loan from different external funding agencies like Asian Development Bank (ADB), World Bank, New Development Bank (NDB) etc. in case of a highway construction project, the major expenditure involves in construction of pavements. Therefore, before constructing a new road it is essential to check the life cycle cost analysis of different pavement options to select a most economical pavement option form techno-economic consideration. It is obvious that in our country most of the existing pavements are flexible pavement which has lower design life and higher maintenance requirements due to unpredictable traffic growth with heavy axel load as compared to the rigid pavements. Nowadays rainfall rate also generally found uncertain so at rainy seasons. So lots of case found that the highways are submersed during flood. These is the most common issue found in our developing country. For that bituminous pavements found damaged and cracked mostly. For that Rigid pavements are a good substitute on Flexible pavements, Rigid pavement have long life cycle (30 years as per IRC) with less maintenance cost, But the cost of construction of rigid pavement is higher than that of flexible pavement, but the Life Cycle Cost (LCC) including all maintenance are much less than of flexible pavements and its equally effective at submersible condition even in case of rehabilitation of existing bituminous pavements, concrete overlays or white topping can be good and beneficial alternative when compared to bituminous overlays. In the present study, an attempt is made to evaluate and compare the LCC of flexible and rigid pavements to be used for rehabilitation of an existing bituminous road. It provides results about the best suitable, economical and cost effective pavements. Net present value method of LCC is used for evaluating the pavements, this method takes into consideration initial construction cost and maintenance cost for design life period of both the pavements. With the help of this analysis a comparison of total life cycle cost of concrete pavements and bituminous pavements can be found out and best pavement alternative can be considered. Life cycle cost analysis: It is an important economic analysis used in the selection of alternatives that impact both initial and future cost. It evaluates the cost efficiency of alternatives based on the net present value (NPV) method which provides the total cost required during life cycle of the project. Keywords: Life Cycle Cost, Preamsar – Hirnikheda - Mundla Road, Rigid Pavement, Flexible Pavement, Traffic, Cost Estimates, MPRDC, Major District Roads.


2019 ◽  
pp. 61-70 ◽  
Author(s):  
Ramazan Ayaz ◽  
Asiye Kaymaz Ozcanli ◽  
Ismail Nakir ◽  
Pramod Bhusal ◽  
Adem Unal

This paper investigates and compares the photometric performance and lifetime cost effectiveness of LED and existing conventional luminaires (high pressure sodium (HPS) and metal halide (MH)). Photometric measurements of the lamps and the luminaires were performed at Yıldız Technical University Lighting Laboratory in Turkey. The performance requirements of the luminaires were analysed according to CIE (International Commission on Illumination) standards. In the simulations, HPS, MH and LED luminaires that provide good lighting criteria for designing M1 and M2 road models were compared in terms of a cost analysis. The life cycle cost analysis (LCCA) method, which comprises installation, energy and maintenance costs, was used in this study. The results of the LCCA showed that LED luminaires have almost the same cost effectiveness as HPS luminaires for the M2 road lighting class, and the total cost of LED luminaires is approximately 11.5 % less than that of HPS luminaires for the M1 lighting class.


2011 ◽  
Vol 4 (5) ◽  
pp. 158-161 ◽  
Author(s):  
A. Morfonios A. Morfonios ◽  
◽  
D. Kaitelidou D. Kaitelidou ◽  
G. Filntisis G. Filntisis ◽  
G. Baltopoulos G. Baltopoulos ◽  
...  

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