Reducing the Cost of Ship Maintenance and Repair

2014 ◽  
Author(s):  
Victoria Dlugokecki ◽  
Dennis Fanguy ◽  
Lisa Hepinstall ◽  
Matthew Tedesco
Keyword(s):  
Cost Reduction ◽  
Cost Benefit Analysis ◽  
Good Practice ◽  
Cost Benefit ◽  
Maintenance Cost ◽  
Potential Cost ◽  
Design Rules ◽  
Deck Plate ◽  
General Dynamics ◽  
The Cost

In July 2011, the National Shipbuilding Research Program (NSRP)awarded the project entitled “Reduction of Total Ownership Costs Through Application of Design For Maintenance (DFM) and Repair Methodologies Project” a collaborative shipyard-led research project, supported by Bollinger Shipyards(Prime), BAE Systems Southeast Shipyards, Vigor Shipyards, the Trident Refit Facility in Kingsbay, GA, General Dynamics Electric Boat, General Dynamics NASSCO, and the Naval Center for Cost Analysis at NSWC-Carderock. Through this customer-centric project, nearly 40 DFM workshops were held with the deck-plate repairers at public and private shipyards across the US to identify major maintenance cost drivers, maintenance cost reduction opportunities, and deliver design rules to reduce total ownership costs to ship owners based on Design for Maintainability (DFM) principles. This paper will provide an understanding of the process used to develop the DFM information and will discuss the DFM principles applied and highlight the “good practice” design rules that resulted from this effort. The paper will also describe the Cost Benefit Analysis process and templates developed through the project, along with provide an appreciation of the potential cost benefits associated with the implementation of DFM principles. The DFM database, also developed through the project, with over 1000+ repair-based cost reduction strategies will also be highlighted.

Economic Viability of On-Line Compressor Washing for Different Rated Capacity

2017 ◽  
Author(s):  
Gali Musa ◽  
Uyioghosa Igie ◽  
Pericles Pilidis ◽  
Sule Gowon
Keyword(s):  
Power Output ◽  
Return On Investment ◽  
Cost Benefit Analysis ◽  
Engine Performance ◽  
Cost Benefit ◽  
Total Power ◽  
Maintenance Cost ◽  
On Line ◽  
Key Aspects ◽  
The Cost

On-line compressor washing has shown to relatively improve engine performance by decelerating the rate of engine degradation due to fouling during operation. There is a number of influencing parameters that determine the economic benefit, some of which includes the frequency of washing, the effectiveness of washing liquid and the size of the engine or power output produced. This study, unlike others, explores the cost-benefit analysis, focusing on the viability of compressor washing for various gas turbine engines or rated capacities, ranging from a 5MW single machine to a 300MW unit. Fouling degradation trend obtained from actual machine operation have been implemented and the application of different washing frequencies and recoveries of lost power shows the significantly higher return on investment for the larger engines in comparison to the smaller engines. This is partly due to the fact that the washing equipment cost, though increases with engine size, does not increase proportionally. Another contributing factor is the cost penalty per MW when the same level of degradation is implemented for all the engines. Some of the key aspects captured in this study are the capital and maintenance cost used, that relates to the different engine sizes, therefore ensuring a more indicative basis for comparing the viability of the different engines. This also includes the estimation of washing liquid utilised based on their respective typical mass flows. When the number of engines increases to 4 for a given operations, the return on investment increases by a factor of 3.5. This is possible as one wash unit can be applied to more than one engine within proximity. Higher return on investment is achieved when more than one relatively small engine is used to obtain a higher total power output. This is about 1.7 times higher for four 63MW engines versus one 255MW, as relatively cheaper washing equipment is implemented for the same total operational capacity. The study also shows that on-line washing is not always viable for electric power generation. This is observed for smaller light-duty engines, especially in situations when the level of fouling is relatively low.

A Cost-Benefit Analysis of Reducing Surgical Site Infections

2018 ◽  
Vol 84 (2) ◽  
pp. 254-261
Author(s):  
Alexander Rosemurgy ◽  
Jacqueline Whitaker ◽  
Kenneth Luberice ◽  
Christian Rodriguez ◽  
Darrell Downs ◽  
...  
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Savings ◽  
Cost Benefit ◽  
Surgical Site Infections ◽  
Potential Cost ◽  
Pancreatic Resections ◽  
Before And After ◽  
Abdominal Operations ◽  
The Cost ◽  
The Impact

Surgical Site Infections (SSI) represent an onerous burden on our health-care system. This study was undertaken to determine the impact of a protocol aimed at reducing SSIs on the frequency and cost of SSIs after abdominal surgery. Beginning in 2013, 811 patients undergoing gastrointestinal operations were prospectively followed. In 2014, we initiated a protocol to reduce SSIs. SSIs were monitored before and after protocol implementation, and differences in SSI incidence and associated costs were determined. Before protocol initiation, standardized operative preparation cost was $40.85 to $126.94 per patient depending on the results of methicillin-resistant Staphylococcus aureus screen; after protocol initiation, the cost was $43.85 per patient, saving up to $83.09 per patient. With the protocol in place, SSI rate was reduced from 4.9 to 3.4 per cent (13 of 379) representing a potential prevention of eight infections that would have cost payers $166,280 ($20,785 per infection). Notably, the SSI rate after pancreatectomy was reduced by 63 per cent ( P = 0.04). With preparation and diligence, SSI rate can be meaningfully reduced and potential cost savings can be achieved. In particular, SSI rate reduction for major abdominal operations and especially pancreatic resections can be achieved. A protocol to reduce SSI is a “win-win” for all stakeholders and should be encouraged with thoughtful and active participation from all hospital disciplines.

Hostile Takeovers and Anti-takeover Defenses in the Russian Corporate Market

2007 ◽  
pp. 70-84 ◽  
Author(s):  
E. Demidova
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Costs And Benefits ◽  
Hostile Takeovers ◽  
Russian Market ◽  
Takeover Defenses ◽  
The Cost ◽  
European Markets

This article analyzes definitions and the role of hostile takeovers at the Russian and European markets for corporate control. It develops the methodology of assessing the efficiency of anti-takeover defenses adapted to the conditions of the Russian market. The paper uses the cost-benefit analysis, where the costs and benefits of the pre-bid and post-bid defenses are compared.

What's it Worth? Improving Surface Water Quality

1999 ◽  
Vol 40 (10) ◽  
pp. 153-159 ◽  
Author(s):  
D. H. Newsome ◽  
C. D. Stephen
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Surface Water Quality ◽  
Control Measures ◽  
Benefit Analysis ◽  
The Cost

Many countries are investing in measures to improve surface water quality, but the investment programmes for so doing are increasingly becoming subject to cost-benefit analysis. Whilst the cost of control measures can usually be determined for individual improvement schemes, there are currently no established procedures for valuing the benefits attributable to improved surface water quality. The paper describes a methodology that has been derived that now makes this possible.

scholarly journals Economic Analysis of the Use of VCS2000 for Pork Carcass Meat Yield Grading in Korea

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1297
Author(s):  
Juntae Kim ◽  
Hyo-Dong Han ◽  
Wang Yeol Lee ◽  
Collins Wakholi ◽  
Jayoung Lee ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Feed Consumption ◽  
Cost Ratio ◽  
Benefit Analysis ◽  
Labor Costs ◽  
Meat Yield ◽  
The Cost

Currently, the pork industry is incorporating in-line automation with the aim of increasing the slaughtered pork carcass throughput while monitoring quality and safety. In Korea, 21 parameters (such as back-fat thickness and carcass weight) are used for quality grading of pork carcasses. Recently, the VCS2000 system—an automatic meat yield grading machine system—was introduced to enhance grading efficiency and therefore increase pork carcass production. The VCS2000 system is able to predict pork carcass yield based on image analysis. This study also conducted an economic analysis of the system using a cost—benefit analysis. The subsection items of the cost-benefit analysis considered were net present value (NPV), internal rate of return (IRR), and benefit/cost ratio (BC ratio), and each method was verified through sensitivity analysis. For our analysis, the benefits were grouped into three categories: the benefits of reducing labor costs, the benefits of improving meat yield production, and the benefits of reducing pig feed consumption through optimization. The cost-benefit analysis of the system resulted in an NPV of approximately 615.6 million Korean won, an IRR of 13.52%, and a B/C ratio of 1.65.

scholarly journals Beyond the Stern Review: Lessons from a risky venture at the limits of the cost–benefit analysis

2009 ◽  
Vol 68 (10) ◽  
pp. 2479-2484 ◽  
Author(s):  
Jean-Charles Hourcade ◽  
Philippe Ambrosi ◽  
Patrice Dumas
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Stern Review ◽  
The Cost

Inferring age from otolith measurements: a review and a new approach

2004 ◽  
Vol 61 (7) ◽  
pp. 1269-1284 ◽  
Author(s):  
RIC Chris Francis ◽  
Steven E Campana
Keyword(s):  
Simulation Experiment ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
New Method ◽  
Population Parameters ◽  
Benefit Analysis ◽  
Mixture Analysis ◽  
New Approach ◽  
Individual Fish ◽  
The Cost

In 1985, Boehlert (Fish. Bull. 83: 103–117) suggested that fish age could be estimated from otolith measurements. Since that time, a number of inferential techniques have been proposed and tested in a range of species. A review of these techniques shows that all are subject to at least one of four types of bias. In addition, they all focus on assigning ages to individual fish, whereas the estimation of population parameters (particularly proportions at age) is usually the goal. We propose a new flexible method of inference based on mixture analysis, which avoids these biases and makes better use of the data. We argue that the most appropriate technique for evaluating the performance of these methods is a cost–benefit analysis that compares the cost of the estimated ages with that of the traditional annulus count method. A simulation experiment is used to illustrate both the new method and the cost–benefit analysis.

Drug costs and treatment choices: a DTB symposium

1993 ◽  
Vol 31 (11) ◽  
pp. 41-44
Keyword(s):  
Cost Benefit Analysis ◽  
Health Benefit ◽  
Cost Benefit ◽  
Drug Costs ◽  
Benefit Analysis ◽  
Treatment Choices ◽  
The Subject ◽  
The Cost ◽  
The Relationship ◽  
Service Managers

The relationship between drug costs and treatment choices was the subject of the first annual Drug and Therapeutics Bulletin symposium held in March 1993.* In a time of severe financial constraints for the NHS it is important that the money available is well spent. In the case of treatment that means the benefits must be worth the cost. There is, however, no agreed way of deciding when a particular health benefit to an individual is worth the cost to the NHS. Drug prices are easier to measure and more consistent than the prices of other treatments, and may be more amenable to cost-benefit analysis. Treatment choices are made primarily by doctors but with critical input from patients, pharmacists, nurses and health service managers. In this article we give an overview of the symposium at which speakers described ways in which drug costs and treatment choices were tackled in general practice (Ann McPherson, John Howie), in hospital (Dorothy Anderson), in clinical research and audit (Iain Chalmers, Alison Frater), by consumers (Anna Bradley), by health economists (Mike Drummond) and by government (Joe Collier). We also take into account points raised in discussion by the participants.

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