A Life Cycle Cost Analysis Approach for Selection of a Typical Heavy Usage Multistage Centrifugal Pump

2006 ◽  
Author(s):  
Laxman Y. Waghmode ◽  
Ravindra S. Birajdar ◽  
Shridhar G. Joshi
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Centrifugal Pump ◽  
Life Cycle Cost ◽  
Lifetime Cost ◽  
Maintenance Cost ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Initial Cost ◽  
Multistage Centrifugal Pump

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.

Life Cycle Cost Analysis of a Novel Cooling and Power Gas Turbine Engine

2010 ◽  
Vol 132 (4) ◽  
Author(s):  
Vaibhav Malhotra ◽  
W. E. Lear ◽  
J. R. Khan ◽  
S. A. Sherif
Keyword(s):  
High Pressure ◽  
Life Cycle ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Cost Savings ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Absorption Refrigeration ◽  
Power Capacity ◽  
Turbine Engine

A life cycle cost analysis was performed to compare life cycle costs of a novel gas turbine engine to those of a conventional microturbine with similar power capacity. This engine, called the high-pressure regenerative turbine engine (HPRTE), operates on a pressurized semiclosed cycle and is integrated with a vapor absorption refrigeration system. The HPRTE uses heat from its exhaust gases to power the absorption refrigeration unit, which cools the high-pressure compressor inlet of the HPRTE to below ambient temperatures and also produces some external refrigeration. The life cycle cost analysis procedure is based on principles laid out in the Federal Energy Management Program. The influence of different design and economic parameters on the life cycle costs of both technologies is analyzed. The results of this analysis are expressed in terms of the cost ratios of the two technologies. The pressurized nature of the HPRTE leads to compact components resulting in significant savings in equipment cost versus those of a microturbine. Revenue obtained from external refrigeration offsets some of the fuel costs for the HPRTE, thus proving to be a major contributor in cost savings for the HPRTE. For the base case of a high-pressure turbine (HPT) inlet temperature of 1373 K and an exit temperature of 1073 K, the HPRTE showed life cycle cost savings of 7% over a microturbine with a similar power capacity.

Life Cycle Cost Analysis of a Novel Cooling and Power Gas Turbine Engine

2005 ◽  
Author(s):  
Vaibhav Malhotra ◽  
W. E. Lear ◽  
J. R. Khan ◽  
S. A. Sherif
Keyword(s):  
High Pressure ◽  
Life Cycle ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Cost Savings ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Absorption Refrigeration ◽  
Power Capacity ◽  
Turbine Engine

A Life cycle cost analysis (LCCA) was performed to compare life cycle costs of a novel gas turbine engine to that of a conventional microturbine with similar power capacity. This engine, called the High Pressure Regenerative Turbine Engine (HPRTE) operates on a pressurized semiclosed cycle and is integrated with a Vapor Absorption Refrigeration System (VARS). The HPRTE uses heat from its exhaust gases to power the absorption refrigeration unit which cools the high-pressure compressor inlet of the HPRTE to below ambient temperatures and also produces some external refrigeration. The life cycle cost analysis procedure is based on principles laid out in the Federal Energy Management Program (FEMP). The influence of different design and economic parameters on the life cycle costs of both technologies is analyzed. The results of this analysis are expressed in terms of the cost ratios of the two technologies. The pressurized nature of the HPRTE leads to compact components resulting in significant savings in equipment cost versus those of a microturbine. Revenue obtained from external refrigeration offsets some of the fuel costs for the HPRTE, thus proving to be a major contributor in cost savings for the HPRTE. For the base case of a high-pressure turbine (HPT) inlet temperature of 1373 K and an exit temperature of 1073 K, the HPRTE showed life cycle cost savings of 7% over a microturbine with a similar power capacity.

scholarly journals LIFE CYCLE COST PADA GEDUNG BOARDING HOUSE DAERAH GLAGAHSARI, YOGYAKARTA

2021 ◽  
Vol 9 (1) ◽  
pp. 18-28
Author(s):  
Ia Nadira Puhessti
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Life Cycle Cost Analysis ◽  
Operational Cost ◽  
Initial Cost ◽  
Boarding House

Life cycle cost merupakan alat untuk mengontrol biaya dengan estimasi dasar dari awal perencanaan gedung, tidak sampai di perencanaan saja tetapi pemeliharaan setelah paskah pembangunan juga dihitung sesuai umur gedung, maka sangat penting untuk melakukan Life Cycle Cost Analysis pada awal perencanaan desain infrastruktur, terutama bangunan gedung. Berdasarkan konsep dari Life Cycle Cost ada enam tahapan dalam melakukan proyek konstruksi yaitu, tahap perencanaan, tahap perancangan, tahap pengadaan, tahap pelaksanaan, tahap pemeliharaan dan analisis nilai akhir. Untuk dapat menghitung Life Cycle Cost terdapat komponen yang terdiri dari biaya awal, biaya perawatan, biaya operasional,biaya penggantian dan perubahan fungsi, dan salvage value. Dengan adanya komponen tersebut dapat diketahui biaya yang akan dikeluarkan untuk tiap komponen atau elemen bangunan. Tujuan dari studi ini adalah untuk mengetahui apa itu Life Cycle Cost dan untuk menghitung biaya bangunan dengan jangka waktu 25 tahun dengan menggunakan metode Life Cycle Cost Analysiss. Studi dilakukan pada bangunan kost yang berada di Glagahsari, Yogyakarta. Estimasi biaya keseluruhan gedung dengan metode Life Cycle Cost yang dilakukan pada bangunan kos yang berlokasi di Glagahsari terbagi menjadi tiga kelompok estimasi biaya yaitu initial cost sebesar Rp. 1.261.887.141 dengan persentase 54,97%, maintanance cost sebesar Rp. 427.879.959 dengan persentase 18,64%, dan operational cost sebesar Rp. 605.914.200 dengan persentase 26,39%.

Suitability of life cycle cost analysis (LCCA) as asset management tools for institutional buildings

2010 ◽  
Vol 8 (3) ◽  
pp. 162-178 ◽  
Author(s):  
Anurag Shankar Kshirsagar ◽  
Mohamed A. El‐Gafy ◽  
Tariq Sami Abdelhamid
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Asset Management ◽  
Life Cycle Cost ◽  
Management Tool ◽  
Maintenance Cost ◽  
Life Cycle Cost Analysis ◽  
Average Difference ◽  
Content Type

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.

Gas Turbine Inlet Filtration System Life Cycle Cost Analysis

2011 ◽  
Author(s):  
Melissa Wilcox ◽  
Klaus Brun
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Life Cycle Cost ◽  
Lifetime Cost ◽  
Life Cycle Cost Analysis ◽  
Turbine Inlet ◽  
Filtration System ◽  
System Life

Gas turbine inlet filtration systems play an important role in the operation and life of gas turbines. There are many factors that must be considered when selecting and installing a new filtration system or upgrading an existing system. The filter engineer must consider the efficiency of the filtration system, particles sizes to be filtered, the maintenance necessary over the life of the filtration system, acceptable pressure losses across the filtration system, required availability and reliability of the gas turbine, and how the filtration system affects this, washing schemes for the turbine, and the initial cost of any new filtration systems or upgrades. A life cycle cost analysis provides a fairly straightforward method to analyze the lifetime costs of inlet filtration systems, and it provides a method to directly compare different filter system options. This paper reviews the components of a gas turbine inlet filtration system life cycle cost analysis and discusses how each factor can be quantified as a lifetime cost. In addition, an example analysis, which is used to select a filtration system for a new gas turbine installation, is presented.

scholarly journals A Comprehensive Study on Life Cycle Cost Examination for a Road (Preamser Hirnikheda Mundla) Project in Madhya Pradesh

2021 ◽  
Vol 9 (9) ◽  
pp. 554-572
Author(s):  
Arghya Dhabal
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Net Present Value ◽  
Flexible Pavement ◽  
Maintenance Cost ◽  
Life Cycle Cost Analysis ◽  
Rigid Pavement ◽  
Rigid Pavements ◽  
Bituminous Pavements

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.

Life Cycle Cost Analysis on M1 and M2 Road Class Luminaires Installed In Turkey

2019 ◽  
pp. 61-70 ◽  
Author(s):  
Ramazan Ayaz ◽  
Asiye Kaymaz Ozcanli ◽  
Ismail Nakir ◽  
Pramod Bhusal ◽  
Adem Unal
Keyword(s):  
Life Cycle ◽  
Cost Effectiveness ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Lifetime Cost ◽  
Life Cycle Cost Analysis ◽  
Total Cost ◽  
Road Lighting ◽  
Performance Requirements ◽  
Photometric Measurements

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.

scholarly journals Life-cycle cost analysis of bridges subjected to fatigue damage

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Stefano Sacconi ◽  
Laura Ierimonti ◽  
Ilaria Venanzi ◽  
Filippo Ubertini
Keyword(s):  
Life Cycle ◽  
Cost Analysis ◽  
Fatigue Damage ◽  
Life Cycle Cost ◽  
Traffic Monitoring ◽  
Traffic Load ◽  
Life Cycle Costs ◽  
Life Cycle Cost Analysis ◽  
Damage Estimation ◽  
Engineering Demand Parameter

AbstractLife-cycle cost analysis (LCCA) is a decision-making tool particularly useful for the design of bridges as it predicts lifetime expenses and supports the inspections management and the maintenance activities. LCCA allows to consider uncertainties on loads, resistances, degradation and on the numerical modelling and structural response analysis. It also permits to consider different limit states and different types of damage in a unified framework. Among the types of damages that can occur to steel and steel-concrete composite bridges, fatigue is one of the most dangerous ones, as it may lead to sudden and fragile rupture, even at operational traffic levels. In this context, the present paper proposes a framework for LCCA based on the use of the Pacific Earthquake Engineering Research (PEER) equation which is for the first time utilized for fragility and cost analysis of bridges subjected to fatigue, highlighting the possibility of treating the problem of fatigue damage estimation with an approach similar to the one currently adopted for damage induced by other hazards, like earthquake and wind. To this aim, a damage index computed through the Palmgren-Miner’s rule is adopted as engineering demand parameter. The framework is applied to a composite steel-reinforced concrete multi-span roadway bridge by evaluating the fatigue limit state from different traffic load models, i.e. a Technical Code-based model and a model based on results of Weigh in Motion monitoring system. The evolution over time of the probability of failure and the life-cycle costs due to fatigue damage induced by heavy traffic loads are investigated for different probability distributions of the engineering demand parameter and for different fragility models. The comparison between the fatigue failure probabilities and the life-cycle costs obtained with the two traffic models, encourages the adoption of traffic monitoring systems for a correct damage estimation.

Economic Evaluation of Multislice Computed Tomography Scanners Through a Life Cycle Cost Analysis

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 ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Life Cycle ◽  
Economic Evaluation ◽  
Cost Analysis ◽  
Life Cycle Cost ◽  
Multislice Computed Tomography ◽  
Life Cycle Cost Analysis ◽  
Tomography Scanners
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