Download or read book A Cost Estimation Analysis of U S Navy Ship Fuel Savings Techniques and Technologies written by and published by . This book was released on 2009 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Defense and Navy are placing a greater emphasis in energy efficiency. Though the surface fleet comprises only a small percentage of petroleum usage, seemingly small efficiencies gained could yield substantial fuel savings. This thesis follows a process of researching and collecting fuel-saving ideas, developing a method to estimate savings, subjecting calculations to sensitivity analyses by discount factor and cost of fuel, and creating prioritization listings of ideas based on predicted savings. Six techniques and twelve technology-based initiatives are examined. Calculations are estimated for each idea using inputs from various sources. Sensitivity analysis is performed on the independent variables of fuel price and discount factor and rankings are computed. The prioritized listing of techniques and technologies are stable when subjected to these sensitivity analyses. And as expected, greater savings are realized when the cost of fuel is higher and/or when the discount factor is lower. For several of the practices in this study, fuel savings are shown to be substantial and worthy for consideration despite any involved risk. These findings may be used by decision makers to pursue further testing and evaluation of practices and subsequently confidently implement throughout the surface fleet, knowing that savings will remain robust despite fluctuations in fuel prices.
Download or read book A Cost Estimation Analysis of U S Navy Fuel saving Techniques and Technologies written by and published by . This book was released on 2009 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Defense and Navy are placing a greater emphasis in energy efficiency. Though the surface fleet comprises only a small percentage of petroleum usage, seemingly small efficiencies gained could yield substantial fuel savings. This thesis follows a process of researching and collecting fuel-saving ideas, developing a method to estimate savings, subjecting calculations to sensitivity analyses by discount factor and cost of fuel, and creating prioritization listings of ideas based on predicted savings. Six technique and twelve technology-based initiatives are examined. Calculations are estimated for each idea using inputs from various sources. Sensitivity analysis is performed on the independent variables of fuel price and discount factor and rankings are computed. The prioritized listing of techniques and technologies are stable when subjected to these sensitivity analyses. And as expected, greater savings are realized when the cost of fuel is higher and/or when the discount factor is lower. For several of the practices in this study, fuel savings are shown to be substantial and worthy for consideration despite any involved risk. These findings may be used by decision makers to pursue further testing and evaluation of practices and subsequently confidently implement throughout the surface fleet, knowing that savings will remain robust despite fluctuations in fuel prices.
Download or read book A Parametric Cost Model for Estimating Operating and Support Costs of U S Navy Non Nuclear Surface Ships written by James M. Brandt and published by . This book was released on 1999-06-01 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: With few effective decision-making tools to assess the affordability of major weapon systems, management of total ownership costs is continually misunderstood. Cost analysis provides a quick and reliable assessment of affordability. Because there is no standardized method for calculating reliable estimates of operating and support (O&S) costs (the principal component of total ownership cost), this thesis formulates a parametric cost model which can be used to determine the annual O&S costs of U.S. Navy (non-nuclear) surface ships based on known (or assumed) physical characteristics and manpower expectations. Source data for the cost model is obtained from the Navy Visibility and Management of O&S Costs (VAMOSC) database, a historical cost database maintained by the Naval Center for Cost Analysis (NCCA). Through standard regression and data analysis techniques, cost estimating relationships are developed for three major cost drivers: ship light displacement, ship overall length, and ship manpower. The formulated parametric cost model is a top-level and fairly reliable representation of average annual O&S cost, and it can be used by the DOD cost community to perform component cost analyses or independent cost estimates.
Download or read book Cost Prediction Via Quantitative Analysis of Complexity in U S Navy Shipbuilding written by Aaron Travis Dobson and published by . This book was released on 2014 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the sophistication and technology of ships increases, U.S. Navy shipbuilding must be an effective and cost-efficient acquirer of technology-dense one-of-a-kind ships all while meeting significant cost and schedule constraints in a fluctuating demand environment. A drive to provide world-class technology to the U.S. Navy's warfighters necessitates increasingly complex ships, which further augments the non-trivial problem of providing cost effective, on-schedule ships for the American taxpayer. The primary objective of this study was to quantify, assess, and analyze cost-predictive complexity-oriented benchmarks in the pre-construction phase of the U.S. Navy's ship acquisition process. This study used commercially-available software such as Mathwork's MATLAB software to analyze the numerical cost data and assess the fidelity of the predictive benchmarks to the datasets. The end result was that a consideration of complexity via the methods and algorithms established in this study supported an exponential cost versus complexity relationship to refine the current cost estimation methods and software currently in use in U.S. Navy shipbuilding. Specifically, it was found that for the subsystems under analysis, acquisition/contract cost per unit was highly correlated with unit complexity according to the relationship, cost/unit ($M,USD) = 23.100 + e^0.015C.
Download or read book Estimating the Fully Burdened Cost of Fuel for a Naval Aviation Fixed Wing Platform written by Daniel R. Truckenbrod and published by . This book was released on 2010 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides the background and motivation for furthering the Fully Burdened Cost of Fuel (FBCF) cost estimating methodology and calculations in the context of a naval aviation fixed wing platform. The FBCF contribution to Total Ownership Cost in the Analysis of Alternatives for Major Defense Acquisition Programs requires steady advancement to meet an October 2011 implementation deadline. Applying OSD guidance and calculator mathematical process facilitates comparison of the additional costs to deliver and protect fuel demanded by the F/A-18E/F aircraft with those added costs for a ship platform. Total costs throughout a realistic operation and support life cycle and applying a notional scenario to the newest calculator demonstrate a range of cost estimating methods. Our conclusions support previous analysis that air refueling contributes significantly to logistics support costs and that investment in fuel conservation technologies and platform endurance can be a strategic opportunity for the Department of Defense and the Department of the Navy. The aircraft FBCF is multiple times higher than the fuel commodity price as compared to the FBCF for ships, which is only fractionally higher than the fuel commodity price. Assured Delivery Price of supplied fuel calculations are complicated for platforms that require multiple refueling support assets.
Download or read book Why Has the Cost of Navy Ships Risen written by Mark V. Arena and published by Rand Corporation. This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several decades, increases in acquisition costs for U.S. Navy combatants have outpaced the rate of inflation. To understand why, the authors of this book examined two principal source categories of ship cost escalation (economy-driven factors and customer-driven factors) and interviewed various shipbuilders. Based on their analysis, the authors propose some ways the Navy might reduce ship costs in the future.
Download or read book Cost Benefit Analysis of Adjustable Speed Drives Aboard Arleigh Burke Class Destroyers written by Godfrey D. Weekes and published by . This book was released on 2003-09 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the U.S. Navy seeks new and innovative ways to maximize its return from a finite budget, an evaluation of its operational practices must be done, Electrical power consumption and fuel efficiency are major factors in the Total Operating Cost (TOC) of naval ships and systems. An evaluation of an alternative mean for delivering electrical power to motors and pumps was conducted with the understanding that principles of the findings could be applied to fans as well. Adjustable Speed Drives (ASD), AC induction motors, AC synchronous motors, centrifugal pumps, and positive displacement pumps were examined. The technical challenges associated with ASDs were explored. MATLAB was used to calculate the potential power savings to be gained by introducing ASD technology to the Firemain and Chilled Water Systems. MATLAB was also used to calculate fuel cost savings from reduced consumption of Shipboard power.
Download or read book U S Navy Surface Ship Fleet Propulsion Energy Evaluation and Identification of Cost Effective Energy Enhancement Devices written by and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report identifies U.S. Navy surface ships that would benefit most from the retrofit of hydrodynamic energy enhancement devices. These devices reduce be required power, and consequently, the fuel needed for propulsion. A large number of potential energy enhancement devices are assessed with regard to their suitability and cost effectiveness for retrofit to U.S. Navy surface ships. A powering evaluation of the U.S. Navy surface ship fleet was prepared. This information was used to identify eleven U.S. Navy surface ship classes as candidates for consideration with regard to retrofit of energy enhancement devices. These classes possess worthwhile energy savings potential with the installation of such devices. Potential yearly energy device fuel cost savings, and long and short term potential fuel savings, were then estimate for these identified candidate ship classes. A large number of energy enhancing concepts and devices with potential for reducing delivered power requirements or improving ship energy efficiency, are identified and described. A chart of compatibility between all identified energy savings devices was prepared. Over a dozen propulsion energy enhancement devices are identified as having potential for retrofit to U.S. Navy candidate surface ship classes. Recommendations are prepared with regard to which energy enhancement devices are to be considered as cost beneficial for retrofit to each of the eleven identified candidate U.S. Navy surface ship classes.
Download or read book The Impact of Collaborative and Three Dimensional Imaging Technology on SHIPMAIN Cost Estimates written by and published by . This book was released on 2008 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Navy owns 277 ships, 57 submarines and more than 4,000 aircraft that requires an inventory that includes: 551 different engines; 7,325 different motors; 36,979 types of valves; 268 air-conditioning unit models and ; 443 categories of generators. Research was conducted into the efficiencies and added value that could be realized by incorporating 3D laser scanning and Product Lifecycle Management (PLM) tools into the cost estimation portion of the ship maintenance and modernization (SHIPMAIN) program. Knowledge Value Added (KVA) + Real Options (RO) framework was used in a proof-of-concept case study to quantify process improvements and subsequent benefits of the addition of 3D laser scanning and PLM technologies on cost estimation in the SHIPMAIN program. The Entitled Process for Surface Ship and Carrier Modernization (SHIPMAIN EP) is a five-phased program that leverages best practice techniques to provide a common planning process for fleet maintenance. The goal of this program is the "right" work at the "right" time for the "right" cost.
Download or read book The Use of Collaborative and Three Dimensional Imaging Technology to Achieve Increased Value and Efficiency in the Cost Estimation Portion of the SHIPMAIN Environment written by and published by . This book was released on 2007 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintenance and modernization efforts of the U.S. Navy s fleet are essential to the U.S. s ability to project power and deter adversaries from around the world. This maintenance and modernization requires substantial allocation of funds from the already stretched thin budget. In order to facilitate the most cost-effective way of allocating funds the Navy has invested substantial fiscal and human resources to standardize the processes used to accomplish maintenance, modernization and repair for its fleet of ships. In order to realize the full benefit to the available technology, reliable and quantitative measures which capture and measure the full range of benefits provided by technology resources are essential. The Knowledge Value Added (KVA) methodology will be used in this thesis to identify and quantify the benefits that can be realized within the cost estimation portion of the ship maintenance and modernization (SHIPMAIN) program. A proof of concept case was developed to analyze the current cost estimation process with SHIPMAIN. After the completion of the baseline as-is process, the KVA methodology is applied to a notional scenario which uses 3D laser scanning and Product Lifecycle Management to reengineer the current cost estimation process. The notional scenario demonstrates positive returns from the reengineered cost estimation process and the KVA methodology establishes evidence which suggests that operating costs will be reduced by over $176 million and cost estimation efficiency will increase.
Download or read book A Statistical Analysis of Surface Escort Cost Estimation written by Cecil D. Bradley and published by . This book was released on 1988 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates the relationship of the component weights of US Navy Surface Escort Ships and their corresponding costs of construction. The procedures of various US Navy agencies who conduct Surface Ship Costing are described, with emphasis upon the method followed by COMNAVSEASYSCOM, Washington D.C. A statistical analysis is provided which focuses upon multiple linear regression techniques applied to the weight/cost relationship. Additionally, the research includes the investigation of non-weight explanatory variable contribution to the various regression models. The analysis concludes that linear relationships do exist between the variables. The statistical evidence provided suggests that linear regression provides equivalent results to non-linear logarithmic transformation of the dependent cost variable. Further, the analysis indicates that the inclusion of non-weight dummy variables, such as contract type for vessel construction, enhance models with strictly weight explanatory variables. The models developed herein lack the precision demanded of budgetary cost estimating. However, the equations will generate point estimates that may add credence to existing methods, especially within concept formulation or tradeoff studies. Keywords: Cost estimation, Surface ship cost estimation, Statistical analysis of ship costing, Theses. (SDW).
Download or read book Energy Abstracts for Policy Analysis written by and published by . This book was released on 1989 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A System Dynamics Model for Manpower and Technology Implementation Trade off and Cost Estimation written by Hong Jiang and published by . This book was released on 2013 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Navy has been confronted with budget cuts and constraints during recent years. This reduction in budget compels the U.S. Navy to limit the number of manpower and personnel to control costs. Reducing the total ownership cost (TOC) has become a major topic of interest for the Navy as plans are made for current and future fleets. According to the U.S. Government Accountability Office (GAO, 2003), manpower is the most influential component of determining the life cycle cost of a ship. The vast majority of the TOC is comprised of operating and support (O & S) costs which account for approximately 65 percent of the TOC. Manpower and personnel costs account for approximately 50 percent of O & S costs. This research focused on tradeoff analysis and cost estimation between manpower and new technology implementation. Utilizing concepts from System Dynamics Modeling (SDM), System Dynamics Causal Loop diagrams (CLD) were built to identify major factors when implementing new technology, and then stocks and flows diagrams were developed to estimate manpower cost associated with new technology implementation. The SDM base model reflected an 18 months period for technology implementation, and then compared different technology implementation for different scenarios. This model had been tested by the public data from Department of the Navy (DoN) Budget estimates. The objective of this research was to develop a SDM to estimate manpower cost and technology tradeoff analysis associated with different technology implementations. This research will assist Navy decision makers and program managers when objectively considering the impacts of technology selection on manpower and associated TOC, and will provide managers with a better understanding of hidden costs associated with new technology adoption. Recommendations were made for future study in manpower cost estimation of ship systems. In future studies, one particular type of data should be located to test the model for a specific manpower configuration.
Download or read book Cost Estimating Relationship for U S Navy Ships written by William J. E. Shafer and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating Operating and Support Cost Models for U S Naval Ships written by Chung-wu Ting and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the end of the Cold War, the winds of military downsizing are blowing all over the world. Downsizing means fewer personnel, less facilities and smaller military budget. Therefore, understanding the relationships among factors responsible for force operating costs is extremely important when facing downsizing budgetary decisions. This study analyzes the U.S. Navy main combatant vessels' Operating and support costs. It seeks to reveal basic relationships of O and S costs through accounting and structural methods. The accounting oriented analysis found the VAMOSC-SHIPS and Jane's combined database to be relatively accurate with the exception of nuclear submarines and nuclear aircraft carriers. The structural analysis found that the overhaul cost should be analyzed separately due to essential differences used to calculate overhaul costs and a 1985 policy revision to ship overhaul. O and S cost relationships between factors other than overhauls were strong. Manpower was found to have the most dramatic effect on determining O and S costs.
Download or read book A Cost Benefit Analysis of Two Products of the Fleet Numerical Oceanography Center written by and published by . This book was released on 1993 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cost benefit analysis of the Fleet Numerical Oceanography Center (FNOC) is conducted with specific attention to the Optimum Path Aircraft Routing System and the Optimum Track Ship Routing System. These two products out of the many produced by FNOC comprise the bulk of the savings realized by the U.S. Navy through FNOC's work. The Optimum Path Aircraft Routing System (OPARS) is evaluated using modified flight plans received by the system. These plans were resubmitted to OPARS to determine the range of fuel usage around the optimum provided to OPARS. The optimum Track Ship Routing System (OTSR) is evaluated using an adaptation of Dijkstra's algorithm to determine the optimum routing if perfect wave height information were available compared to a purely greedy strategy capturing the shortest arc available enroute to the destination. The damage sustained is compared to actual damage reported to the Naval Safety Center to determine the savings to the U.S. Navy from the OTSR system.
Download or read book NASA SP 7500 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1982 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
