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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Running Costs for Motor Vehicles

Iskander, Odette January 1978 (has links)
<p> A review ·of the basic purposes for, and research work conducted on, estimates of running costs of motor vehicles is presented. An attempt at using available running cost data at the Ministry of Transportation and Communications (Ontario) to obtain acceptable estimates of running costs is also presented. The purpose of this report was to study, in detail, the purpose and research methods advocated for obtaining running cost estimates with inherent advantages and disadvantages, and includes an attempt at using available data in obtaining such estimates and the problems associated with it. </p> <p> Several of the principal purposes and uses of running cost estimates are addressed. Each purpose is presented and discussed in detail and examples of data obtained to satisfy that purpose are given. In addition, the deficiencies of each data type are identified. Examples of use and application of different data types in obtaining economic assessment for individual organizational and governmental uses are included. </p> <p> A review of literature on running costs for motor vehicles is given. The different data collection and research methods adopted by researchers all over the world are discussed. A discussion of the advantages and disadvantages of each method with respect to variables included, data collection method, level of data aggregation, impact of time-dependence, techniques and results is presented. </p> <p> An investigation of running cost records available at the Ontario Ministry of Transportation and Communications was conducted. An effort at using such records to obtain reliable estimates of running costs was attempted but no conclusive results were obtained. The limitations of using these records to obtain running costs estimates are indicated. </p> <p> The concluding chapter includes recommendations for future research efforts for both short term and long term consideration. </p> / Thesis / Master of Engineering (MEngr)
2

Life Cycle Cost Analysis and Optimization of Wastewater Pumping System

Chen, Chao, Bhamare, Yogesh Vishwas January 2019 (has links)
Different attempts have been made to facilitate successful operation of Wastewater Pumping (WWP) system. The WWP units which are already existed in different parts of the world have been studied to identify its success, failure and different parameters associated with its suboptimal performance. The performance of WWP depends on three parameters namely pump, hydraulics, control system and pump station. These parameters are interdependent and must be carefully matched to achieve efficient WWP system. Nowadays the scenario has changed where organizations has started looking increasingly at the total cost of ownership, another way of saying Life Cycle Cost Analysis (LCCA) and recognizing the need to get most out of their equipment purchase. The master thesis includes theory part which describes the different parameters associated with WWP unit especially focusing on Xylems WWP system. This thesis is an attempt to help companies to know how LCCA could be productive management tool in order to minimize maintenance cost and maximize energy efficiency The study reported in this thesis work has been conducted to shed light over the use of Life Cycle Cost Analysis in WWP system. The current study tries to suggest and assess an adopted approach to ensure successful and efficient operation of WWP system with lowering energy demand and decrease in maintenance cost. Initial cost, Maintenance cost and Energy costs are important issues in the operation of WWP system since they are responsible for total cost over time. Therefore, description of each cost, formulas necessary for LCC calculations, data and survey structure, material and energy flow has been described. This work also aims to provide an extensive literature review, different survey and data collection techniques, analysis of collected data, statistical modelling, customer interaction by questionnaires and an interview with experts were used. LCC calculations were used to support the design and selection of most cost-efficient WWP system. Therefore, the given thesis work is an attempt to achieve better functional performance, improve existing design principles associated with WWP System, contribution to asses economic viability, support decision making to enhance operational quality to achieve efficient and successful WWP system.

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