R&D report Research Paper Example | Topics and Well Written Essays - 3500 words

R&D report - Research Paper Example Internal combustion engines have also been designed to operate on natural gas since it is cheaper than crude oil derivatives. Although natural gas engines provide for cheaper operating costs, there is a constant need for maintenance on the valve assemblies. The relatively earlier failure of valves, especially exhaust valves, leads to increased maintenance costs as well as lowered machine reliability and availability. This is truer still for smaller gas engines that are employed in domestic backup power applications. This research employs a lubricator in order to improve the lubricity of natural gas so as to improve valve life and hence engine availability and reliability. Keywords: natural gas engine, lubricity, valve failure, exhaust valve, head assembly Table of Contents Statement of the Problem 11 Rationale 11 Assumptions 12 Limitations 12 Nomenclature 13 Terms. 13 Abbreviations. 13 Intellectual Property Issues 14 Patent. 14 Copyright. 14 Fair use. 14 Budget Overview 14 Analysis 1 6 Problem Analysis 16 Existing scenario. 16 Ideal scenario. 16 Gap analysis. 16 Performance Criteria 16 Focusing of the Task Objective 17 Limitations and delimitations of the project. 17 Governing propositions. 17 Assumptions. 17 Statement of the R&D objective. 18 Hypothesis 19 Solution Proposal Method 19 Mechanisms of the Task 19 RCA. 19 Observations and expert opinions. 19 Development Procedures 19 Computer aided engineering (CAE) techniques. 20 Machining. 20 Fabrication. 20 Fitting. 21 Governing Propositions 21 Performance Measures 21 Synthesis 21 Implementation 21 Testing 22 Equipment. 22 Methods. 23 Measurement. 24 Instrumentation. 24 Experimental Results and Data Analysis 25 Validation 26 Status of Task Objective 26 Sustainability 26 Transferability 26 Implications 27 Recommendations 27 References 28 Appendix A – Lubricator Design 29 3D CAD Models 29 Appendix B – Proposed Air Plenum 32 3D CAD Models 32 Index 34 List of Figures Figure 1 - Exhaust valve burn with t he burned area visible on the right side. Continued operation of this valve could have led to catastrophic failure of the engine. 10 Figure 2 - Arrangement of inlet valve and exhaust valve in a single cylinder engine configuration 22 Figure 3 - The gas genset used for the current research sourced from (Green Power, 2013) 23 Figure 4 - MTBF against lubrication feed rate 25 Figure 5 - Lubricator body with bracket welded on 29 Figure 6 - Lubricator graduation cylinder 30 Figure 7 - Lubricator end tail for insertion into air plenum 30 Figure 8 - Complete lubricator assembly including lubrication adjustment screw (shown on the left bottom corner) 31 Figure 9 - Proposed air plenum base 32 Figure 10 - Proposed air plenum top cover 33 List of Tables Table 1 - Budget for the current research. 14 Table 2 - Lubrication feed rate used for experimentation 23 Table 3 - Lubrication feed rates and the corresponding MTBF 25 Proposal to Research and Develop Lubricator for Gas Generators Natural gas s erves as a cheap fuel alternative to the more expensive diesel, gasoline, kerosene, light fuel oil (LFO) and heavy fuel oil (HFO). There has been a growing trend to utilise natural gas in power generation applications in the form of both turbines and internal combustion engines. The lubrication process in a turbine relies on an externally supplied lubricating agent only. However, internal combusti

Motivation and Teams Case Study Essay Example | Topics and Well Written Essays - 500 words

Motivation and Teams Case Study - Essay Example Abraham Maslow argued that unsatisfied needs motivate employees to meet their needs in order to feel satisfied. The various needs include physiological needs (bonuses), security needs (job security), belongingness needs (group cohesiveness), esteem needs (promotion to senior positions), and self-actualization needs (responsibility for profitability (Fargus, 2000). After satisfaction of the physiological needs, the employee’s demand moves to security until the next higher level. For example, an employee satisfies his physiological needs such as water, food, and clothing. After the satisfaction is met, the employee feels motivated and proceeds to satisfy the next needs. Expectancy theory explains that work motivation is a function of an employee’s belief. The managers encourage employees to believe that if they sacrifice and work hard, they will succeed. For example, an office messenger believes that he will receive reward if he performs, which is fuelled by the belief th at working hard leads to high job performance (Fargus, 2000). Goal setting theory illustrates that managers should establish goals for their employee’s, which will find use in assessing their performance. For instance, a manager who tells his staff that they have two weeks to finish processing some work motivates the employees to work harder before the expiry of that date in order to attain their objectives. Equity theory argues that employees are motivated to achieve goals after believing that they will remain rewarded fairly for their efforts. For example, two personnel working together perform effectively when their salary output is similar. Job enrichment theory illustrates that the best way to motivate employees is to raise their responsibility over the way they function (Fargus, 2000). For instance, a subordinate staff having several responsibilities has great autonomy; hence, feeling satisfied. Finally, management