Academic literature on the topic 'Cambridge Electric Light Company'
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Journal articles on the topic "Cambridge Electric Light Company"
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Bailey, Paul. "Light Work." Electric and Hybrid Vehicle Technology International 2020, no. 1 (July 2020): 24–26. http://dx.doi.org/10.12968/s1467-5560(22)60116-7.
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Cunningham, J. J. "An AC Pioneer: United Electric Light & Power Company [History]." IEEE Power and Energy Magazine 11, no. 3 (May 2013): 84–98. http://dx.doi.org/10.1109/mpe.2013.2245589.
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Heilmann, Oliver, Britta Bocho, Alexander Frieß, Sven Cortès, Ulrich Schrade, André Casal Kulzer, and Michael Schlick. "Driving Profiles of Light Commercial Vehicles of Craftsmen and the Potential of Battery Electric Vehicles When Charging on Company Premises." World Electric Vehicle Journal 15, no. 5 (May 10, 2024): 211. http://dx.doi.org/10.3390/wevj15050211.
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This paper examines the extent to which it is possible to replace conventional light commercial vehicles in the heating, ventilation and air conditioning and plumbing trade with battery electric vehicles with an unchanged usage profile. GPS trackers are used to record the position data of 22 craft vehicles with combustion engines from eleven companies over the duration of one working week. Within this paper, various assumptions (battery capacity and average consumption) are made for battery electric vehicles and the charging power on the company premises. The potential of battery electric vehicles is evaluated based on the assumption that they are charged only on company premises. Using the collected data and the assumptions made, theoretical state of charge curves are calculated for the vehicles. The driving profiles of the individual vehicles differ greatly, and the suitability of battery electric vehicles should be considered individually. Battery capacity, vehicle energy consumption and charging power at the company have a substantial influence on the suitability of battery electric vehicles. Furthermore, there are differences between vehicles that can charge on the company premises at night and those that cannot or can only do so on some days.
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XIA, CHENXIAO. "Electrifying Kyoto: Business and Politics in Light and Power, 1887–1915." Enterprise & Society 18, no. 4 (August 7, 2017): 952–70. http://dx.doi.org/10.1017/eso.2017.6.
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The city of Kyoto witnessed Japan’s first public-owned electric utility and first hydraulic station for general supply, and was the first Japanese city in which every household became electrified. Behind these achievements, the interaction between the privately owned Kyoto Electric Light Company and the government-owned Kyoto Municipal Electric Works were important. By exploring their origin, collusion, competition, and demarcation between them from 1887 to 1915, this article addresses business–government relations in the history of Japanese electrification through the case of Kyoto.
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Shima, Rihito. "The Great Kanto Earthquake and the Tokyo Electric Light Company, Inc.: Moral Hazards Exacerbated by the Great Kanto Earthquake." Journal of Disaster Research 18, no. 6 (September 1, 2023): 632–48. http://dx.doi.org/10.20965/jdr.2023.p0632.
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The Tokyo Electric Light Company, Inc., the largest electric power company in pre-war Japan, took an active merger policy and started accounting manipulations to maintain high dividends in the 1920’s. It, however, suffered extensive damage in 1923 when the Great Kanto Earthquake occurred and covered the damage by devising the appraisal profits of its fixed capital, which, though frequent in those days, constituted arbitrary accounting manipulations with no objective criteria. The Great Kanto Earthquake induced moral hazards to its management resulting in normalization of the accounting manipulations in the best interest of high dividends. Such accounting manipulations triggered the intervention of Mitsui Bank, Ltd. in its management, and partly contributed to the government control of electric power. As disasters are likely to show the inherent problems within companies, any temporary solution would instead result in more severe consequences.
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Reich, Leonard S. "Lighting the Path to Profit: GE's Control of the Electric Lamp Industry, 1892–1941." Business History Review 66, no. 2 (1992): 305–34. http://dx.doi.org/10.2307/3116940.
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Founded in 1892, General Electric set out to dominate the American electrical industry. This article is an explanation of how the company accomplished this goal in the highly profitable electric lamp (“light bulb”) market. GE's techniques included technology leadership through in-house development and the purchase of patent rights, discriminatory agreements with suppliers based on market power, and cartel arrangements of various sorts, both foreign and domestic. The article shows how one company was able to use financial and market power, combined with early control of a rapidly developing technology, to gain and then hold a major American market for half a century.
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Kahle, Trish. "Electric Discipline: Gendering Power and Defining Work in Electric Power Systems." Labor 21, no. 1 (March 1, 2024): 79–97. http://dx.doi.org/10.1215/15476715-10948947.
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Abstract In the 1970s, energy conservation was a household idea, but it was also a form of labor discipline. This article shows how one utility, the Pennsylvania Power & Light Company (PP&L), used energy conservation to discipline unwaged workers in the home, upending decades of home economics research that sought to substitute electric energy for human energy in housework. To effectively deploy this strategy, PP&L drew on utilities’ well-established understanding of women's unwaged work in the home as central to balancing the rhythms of power demand. By exploring this history, this article also argues that by adopting a more expansive understanding of labor in energy systems—which I term “energy work”—we can better understand the interrelationship of labor, gender, and power in the operation of energy systems and more fully incorporate the history of unwaged workers into the history of energy.
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Wunsch, A. David. "Electric Light: An Architectural History —Sandy Isenstadt (Cambridge, MA, USA: MIT Press, 2018, 292 pp.)." IEEE Technology and Society Magazine 40, no. 2 (June 2021): 17–19. http://dx.doi.org/10.1109/mts.2021.3077039.
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Winters, Jeffrey. "By the Numbers: Will Trucking Go Electric?" Mechanical Engineering 140, no. 01 (January 1, 2018): 28–29. http://dx.doi.org/10.1115/1.2018-jan-1.
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This article presents details of a report on new and future trends in trucking. According to the report, fleet owners may quickly adopt electronic vehicles (EV) for medium-haul routes. In November 2017, Tesla CEO Elon Musk unveiled the design for a battery-powered semi that could travel 500 miles on a single charge. According to Musk, the company would begin producing the trucks in 2019. The report highlighted the regional light-duty delivery market in Europe, where fuel costs are higher than in the United States. Designing vehicles and business models around the capabilities of electric powertrains—capabilities that differ from those of diesel trucks—are expected to enable battery-electric trucks to penetrate the market more quickly.
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Gonçalves, Frederico, Liselene de Abreu Borges, and Rodrigo Batista. "Electric Vehicle Charging Data Analytics of Corporate Fleets." World Electric Vehicle Journal 13, no. 12 (December 7, 2022): 237. http://dx.doi.org/10.3390/wevj13120237.
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The advances in electric mobility, motivated by current sustainability issues, have led public and private organizations to invest in the electrification of their corporate fleets. To succeed in this transition, companies must mitigate the impacts of electrification on their fleet operation, in particular the ones on vehicle recharging. The increase in energy demand caused by electrification may require changes in the company electrical infrastructure, the installation of charging stations, and the proper planning of the recharging schedule, considering the particularities of each fleet and operation. In this context, data analytics is seen as an important tool to help companies to understand their charging fleet profile, supporting decision makers in making data-driven decisions regarding their charging infrastructure. This paper shows how data analytics could be applied to analyze the charging data of corporate electric fleets, adopting a business-oriented analysis method based on the Cross Industry Standard Process for Data Mining (CRISP-DM) methodology. The analyses were performed on data collected from three different companies, with each one of them operating fleets of vehicles of different categories, i.e., ultra-light, light, and heavy vehicles. The results illustrate how data analytics, based on interactive reports and dashboards, can shed light on business questions related to the operation of electric vehicle corporate fleets.
Dissertations / Theses on the topic "Cambridge Electric Light Company"
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Lai, Pak-kin. "A study of the corporate strategy of a large electric utility company in Hong Kong /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17982960.
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Hung, Chu-Ying, and 洪主瑩. "The disturbance of corporate reorganization and transfer in Soochow Tsun Hsing electric light company (1918-1924)." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/685xff.
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碩士國立政治大學
歷史學系
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Soochow Tsun Hsing Electric Light Company was established in 1908. To evade China’s policy on restricting foreign investment, Chu Ta-ch'un, the president of Tsun Hsing Electric Light Company is Chu Ta-ch'un. Chu Ta-ch'un, recognized and transferred the ownership of the company firm to Toa Kogyo from Japan privately, stating the deal as a cooperation between Chinese and Japanese investors in 1918. Combined with the elevating nationalism, this trade aroused the people’s suspicions in 1919. Soochow businessmen and Soochow citizens boycotted Tsun Hsing and they wanted, attempting to establish another electric light company to replace Tsun Hsing Electric Light Company. The new Soochow Electric Light company was launched began operations in 1920. Through a series of severe. The competition for between the two Electric light company was cutthroat. Because Soochow people boycotted Tsun Hsing successfully. Tsun Hsing Electric Light Company was finally be transferred to Soochow Electric Light company in 1924. Based on the completion between two main parties, Soochow citizens and the Tsun Hsing Electric Light Company, this research is therefore going to explore the relationship between foreign investors and local people.
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"The tariff system of a local electric power utility: its contribution to the company's performance in a changing environment." Chinese University of Hong Kong, 1991. http://library.cuhk.edu.hk/record=b5886671.
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by Mak Chai-ming.Thesis (M.B.A.)--Chinese University of Hong Kong, 1991.
Bibliography: leaves 58-59.
ABSTRACT --- p.ii
TABLE OF CONTENTS --- p.iii
LIST OF ILLUSTRATIONS --- p.v
ACKNOWLEDGEMENT --- p.vi
Chapter
Chapter I --- INTRODUCTION --- p.1
Chapter II. --- THE POWER INDUSTRY AND ITS PRODUCT --- p.3
The Characteristics of Electricity --- p.3
Power Industry of Hong Kong --- p.4
The Product Profile of Electricity --- p.5
Load Factor --- p.6
Load Factor and Cost --- p.7
Chapter III. --- BUSINESS CHALLENGES IN THE POST WAR DECADES --- p.12
The Critical Problems - The First Challenge --- p.13
The Scheme of Control Agreement --- p.14
Goals and Objectives of CLP --- p.15
Coal as Input - The Second Challenge --- p.16
Chapter IV. --- COST OF ELECTRICITY AND ITS PRICING --- p.18
The Tariff Structures --- p.18
The Tariff of the Past --- p.19
The Present Tariff --- p.19
Cost of Service Study Model --- p.20
Cost Identification --- p.21
Cost Functionalisation --- p.21
Costing Period Determination --- p.22
Cost Allocation --- p.27
Results and Interpretation --- p.28
Rate of Return Determination --- p.28
Unit Cost Analysis --- p.31
Chapter V. --- REVIEW OF THE PRESENT TARIFF STRUCTURE --- p.35
Objectives of the Present Tariff --- p.35
Performance of the Tariff --- p.36
Performance of the Company --- p.37
Load Factor Improvement --- p.40
Chapter VI --- THE NEW CHALLENGES AND THE STRATEGIES --- p.42
The New Challenges --- p.42
Changes in The External Market --- p.42
The 1997 Issue of Hong Kong --- p.43
Fuel Advantages Exhausted --- p.44
The Company's Strategies Facing the New Challenges --- p.44
Deferring Capital Investment --- p.45
Supply Side Management --- p.45
Diversification --- p.46
Chapter VII. --- PROJECTED PERFORMANCE OF THE TARIFF --- p.49
Maximum Demand Forecast and Generating Capacity Requirement --- p.49
Projected Expenditure and Revenue Requirement --- p.50
The New Objectives of the Tariff --- p.50
Least Cost Planning --- p.50
Energy Conservation --- p.50
Factors to Consider for the Detailed Design of the Tariff --- p.50
Price Elasticity --- p.52
Scheme of Control --- p.52
Load Factor Improvement --- p.52
Chapter VIII. --- CONCLUSION --- p.53
APPENDIX --- p.54
BIBLIOGRAPHY --- p.58
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Orlowski, Ryszard. "Fault detection and location on 22kV and 11kV distribution feeders." Thesis, 2006. https://vuir.vu.edu.au/15660/.
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AGL Electricity (AGLE) is one of the four privately owned electricity distribution companies in the Australian State of Victoria. Due to its operations in a regulated
environment, AGLE's objective is to meet the distribution network performance standards set by the Victorian government's Essential Services Commission (ESC). Two performance measures are of major importance: average minutes off supply per customer and average number of intermptions per customer. These performance measures are adversely impacted by unplanned outages caused by faults occurring mainly on overhead distribution feeders. To improve these two performance measures, there has been a need to implement a scheme on AGLE's overhead distribution network that would contain long term effects of a fault within the feeder section that directly experienced the fault, leaving the remaining feeder sections and
their customers on supply. To achieve this goal a means of fault detection and location, augmented by automatic isolation of the faulty feeder section, is required.
To that extent, AGLE was faced with a dilemma presented by typical fault detection and location scheme applications on complex distribution networks, i.e. reliable fault location resolution versus affordable implementation and maintenance costs. This dilemma was resolved through the extensive feasibility study carried out by the author of this thesis.
Books on the topic "Cambridge Electric Light Company"
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Bentham, Frederick. Sixty years of light work. Isleworth: Strand Lighting, 1992.
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Irwin, Clark T. The light from the river. Augusta, ME: Central Maine Power Company, 1999.
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Company, Royal Electric, ed. Light, power, heat: The Royal Electric Company, Montreal, Que., Toronto, Ont. [S.l: s.n., 1986.
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West, Raymond. A history of Southwestern Electric Service Company: Light for the pines and prairies. Dallas, Tex: The Company, 1995.
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Estomin, Steven. Forecasted electric power demands for the Delmarva Power and Light Company. [Annapolis, Md.]: The Program, 1990.
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McDowall, Duncan. The Light: Brazilian Traction, Light, and Power Company Limited, 1899-1945. Toronto: University of Toronto Press, 1988.
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Corbitt, William W. And there was light: The story of American Electric Power, its first 85 years, 1906-91. Columbus, Ohio (1 Riverside Plaza, Columbus 43215): American Electric Power Service Corp., 1992.
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Beck, Bill. Transforming the Heartland: The history of Wisconsin Power & Light Company. Madison, Wis: Wisconsin Power & Light Co., 1990.
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historian, Stewart Robert industrial, Bridgeport (Conn.). Office of Planning and Economic Development., Connecticut. Dept. of Economic and Community Development., and Historical Perspectives (Firm), eds. From light switches to torpedo controls: The story of the Bryant Electric Company, Bridgeport, Connecticut. Westport, CT: Historical Perspectives, inc., 1996.
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Beck, Bill. Light across the prairies: An illustrated history of Northwestern Public Service Company. Huron, S.D: Northwestern Public Service Co., 1989.
Find full textBook chapters on the topic "Cambridge Electric Light Company"
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Hettesheimer, Tim, Cornelius Moll, Kerstin Jeßberger, and Saskia Franz. "Small Electric Vehicles in Commercial Transportation: Empirical Study on Acceptance, Adoption Criteria and Economic and Ecological Impact on a Company Level." In Small Electric Vehicles, 69–83. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65843-4_6.
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AbstractSmall electric vehicles (SEVs) in commercial transportation have the potential to reduce traffic and its impacts, especially in urban areas. Companies, however, are still reluctant to implement SEVs. Therefore, the aim of this contribution is to shed light on the acceptance of motives for and obstacles to the use of SEVs in commercial transportation. Since the use of SEVs is often discussed in the context of innovative city logistics concepts, such as micro-hubs, our aim is also, to explore the acceptance, economic, and ecological potentials of SEVs in combination with micro-hubs. We use a multi-method approach and combine an online survey with in-depth interviews as well as a total cost of ownership (TCO) and CO2 calculation. Analyzing 350 responses to an online survey revealed that around half the companies surveyed have no knowledge of SEVs. This implies high unexploited potential, since 25% of these companies can imagine using them. In-depth interviews with logistics service providers (LSPs) or logistics departments from different sectors revealed that six of the 13 interviewed LSPs would be willing to implement this concept.
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LeBlanc, Louis A. "Armadillo Power & Light." In Advances in Computer and Electrical Engineering, 44–54. IGI Global, 2001. http://dx.doi.org/10.4018/978-1-930708-04-4.ch005.
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Armadillo Power & Light Company (AP&L), headquartered in Hondo (TX), provides electric service to the lower half of the Lone Star State. AP&L is a wholly owned subsidiary of Texas Power Corporation, an electric utility holding company. The General Accounting (GA) Department of AP&L is primarily responsible for closing the company books on a monthly basis. After the books are closed, GA is responsible for providing senior management with data relating to key operating results. This data includes a comparative income statement, analysis of rate of return on common equity, analysis of operating revenues and megawatt hours (MWH) sales (as shown in Figure 1), analysis of sources and disposition of energy, and analysis of operation and maintenance expenses by function.
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"Notes on Cambridge, 1629-1632." In Milton, edited by Gordon Campbell, 71–104. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198129004.003.0003.
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Abstract In n my introduction to the notes on the period 1625-9, I said just about everything that there is to say about the contributions of the earliest biographers to our knowledge of Milton at Cambridge in the years 1629-32. They knew almost nothing. Apart from official records, the poems, and the prolusions, we still know almost nothing. Biographical research has had to be devoted to his friends and relatives, to the subjects of some of his poems, and to his father ‘s business affairs. On these some interesting facts have been brought to light, but the success has been frustrating, for what we most want to know, we are as far as ever from finding out. For example, we do not know Milton ‘s whereabouts during his three postgraduate years at Christ ‘s College. He was almost certainly not in Cambridge during most of 1630, a plague year, but we do not know where he was. He may or may not have spent much time at Cambridge in the other years. There is the faintest of hints that he was in Exeter in April of 1630, when his father deposed in a chancery suit there. He almost certainly saw something of Charles Diodati in the period before Charles ‘s departure for Geneva in April 1630 (the same month). The Italian sonnets more than hint at a vacation spent in the company of young men and women of his own age. The regions and specific localities mentioned in the Epitaphium Damonis constitute other tantalizing hints. But no biographer has yet been able to take advantage of these clues, if clues they are.
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Moyano, David Baeza, and Roberto Alonso González Lezcano. "Indoor Lighting Workplaces." In Advances in Civil and Industrial Engineering, 243–58. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7279-5.ch012.
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Office work has so far been carried out in company buildings and was largely based on the use of paper on a horizontal surface. Due to multiple reasons, more workers are working in their homes with electronic devices. As a result, both the working environment and personal tools are changing. Since the discovery about 20 years ago of the non-visual ways of light absorption, it was known that apart from the image forming effects (IF) of light from which the criteria for correct lighting have been developed, non-image forming effects (NIF) of light exist. The discovery of NIF has enhanced researcher belief in the importance of daylighting and has raised new criteria to be taken into account for proper interior lighting. Due to all the factors mentioned above, the parameters to be met by a luminaire and its environment for proper lighting of the workstation have been modified and expanded. The rapid advance in the development of new light-emitting diode (LED) luminaires with which the spectral power distribution (SPD) can be practically created opens the door to a genuine technological revolution comparable to the invention of electric lighting around 150 years ago. The authors of this study will review the latest published studies on the importance of light in our lives, IF and NIF effects of light, the parameters which from these effects are suggested to be taken into account for a correct indoor lighting, the regulations in force on indoor lighting workplaces, and proposals to improve indoor lighting and therefore the quality of life of workers.
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Ray, Robert B. "Ice." In The ABCs of Classic Hollywood, 245. Oxford University PressNew York, NY, 2008. http://dx.doi.org/10.1093/oso/9780195322910.003.0087.
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Abstract Mr. Neeley’s ice wagon represents precisely the kind of syndecdochic detail regularly deployed by Hollywood cinema: like Esther’s corset, it is short- hand for an entire era. Nevertheless, the movie’s nostalgic image of the horse-drawn cart is ruthlessly ironic. With its electric light shows, 140 automobiles (driven from as far away as Boston), dishwashers, wireless telegraphy, and mechanized refrigeration (“mechanical refrigeration offers much that is spectacular,” proclaimed one ad), the 1904 World’s Fair would signal the death throes of Mr. Neeley’s world. The year before had already seen the founding of the Ford Motor Company and the publication of Frederick Taylor’s Shop Management, which proposed a method for scientifically organizing labor. As Tootie sits blithely singing in the back of the wagon, and the last few blocks of ice lie melting under their tarpaulins, this once-familiar routine of everyday life is on the verge of obsolescence. Designed to evoke the gentle quaintness of turn-of-the-century life, Mr. Neeley’s wagon and the dissolving ice only suggest its difficulties: the deadly provincialism, the nonexistent sanitation, the claustrophobic, endless summer heat.
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Bailey, Lt Col F. M. "In Troitskoe." In Mission to Tashkent, 113–24. Oxford University PressNew York, NY, 2002. http://dx.doi.org/10.1093/oso/9780192803870.003.0011.
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Abstract I Stayed a few days in the meteorological station, trying to make arrangements to go to Tashkent. One day Garibaldi passed through. It is an instance of the care we took to keep our business concealed from others that although we all had our midday meal together neither Edwards nor Merz knew who he was, nor that he had been in the mountains with me. We were very comfortable and well fed here, though the bread was not as good as Garibaldi’s baking. The Soviet bread was a mixture of maize and other flour and was suspected to contain a proportion of sawdust. We had the luxury of paraffin oil to burn. In our hut up the hill our only light had been pieces of cotton wool laid in a saucer of cotton oil. Later this was all anyone had in Tashkent when, as frequently happened, the electric light was cut off. One day some hunters arrived with four camels. They were part of a kind of commercial company which had been formed to kill pigs and other game for sale in the town. One of these was Colonel Yusupov with whom I had stopped on November 7th and who, of course, knew me. I was not to see him again till we met in Bokhara ten months later. We had a lot of snow here and it was very cold and windy. The temperature sank below zero, Fahrenheit. In fact it was much colder than at the bee-farm in our sheltered valley three thousand feet higher. While staying here we heard rumours of disturbances in Tashkent. The news was that the Bolsheviks had been over-thrown. I did not believe this, but my companions were on the top of the wave and already looking forward to the joys of a free normal life with its many pleasures.
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Pool, Robert. "The Power of Ideas." In Beyond Engineering. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195107722.003.0007.
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When Edison introduced his new-fangled electric-lighting system, he found a receptive audience. The public, the press, and even his competitors— with the possible exception of the gaslight industry—recognized that here was a technology of the future. Alexander Graham Bell, on the other hand, had a tougher time. In 1876, just three years before Edison would create a practical light bulb, Bell’s invention of the telephone fell flat. “A toy,” his detractors huffed. What good was it? The telegraph already handled communications quite nicely, thank you, and sensible inventors should be trying to lower the cost and improve the quality of telegraphy. Indeed, that’s just what one of Bell’s rivals, Elisha Gray, did—to his everlasting regret. Gray had come up with a nearly identical telephone some months before Bell, but he had not patented it. Instead, he had turned his attention back to the telegraph, searching for a way to carry multiple signals over one line. When Gray eventually did make it to the patent office with his telephone application, he was two hours behind Bell. Those two hours would cost him a place in the history books and one of the most lucrative patents of all time. Some months later, Bell offered his patent to the telegraph giant Western Union for a pittance—$100,000—but company officials turned him down. The telephone, they thought, had no future. It wasn’t until the next year, when Bell had gotten financing to develop his creation on his own, that Western Union began to have second thoughts. Then the company approached Thomas Edison to come up with a similar machine that worked on a different principle so that it could sidestep the Bell patent and create its own telephone. Eventually, the competitors combined their patents to create the first truly adequate telephones, and the phone industry took off. By 1880 there were 48,000 phones in use, and a decade later nearly five times that. More recently, when high-temperature superconductors were first created in 1986, the experts seemed to be competing among themselves to forecast the brightest future for the superconductor industry.
Conference papers on the topic "Cambridge Electric Light Company"
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Brown, Roberta S. "Evolution of a Modern Energy Company." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33133.
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The mergers and acquisitions currently taking place in the energy industry are often thought to be new to our times but are actually part of an on-going process common in the energy industry since its inception. The paper traces the evolution of Conectiv, a current mid-Atlantic supplier of energy and energy delivery company, from its foundations over 100 years ago as Wilmington Coal Gas Company and Electric Light Company of Atlantic City through dozens of mergers, acquisitions and divestitures, with products as diverse as electricity, gas, ice, trolleys, trains, steam, cooling, appliances, telephone service, and even the Internet. The impact of technological advances, both within the power industry and in society, as well as major historical events such as the Great Depression or World War II, will be highlighted.
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Pyle, Terry, and Dan Aldrich. "Garrett’s Turboshaft Engines and Technologies for the 1990s." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-204.
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Garrett Engine Division of Allied-Signal Aerospace, Inc., which supplies small-to-medium size gas turbine propulsion engines to the fixed-wing aviation market, is expanding its product line to include the small-to-medium turboshaft engine for the rotary wing (helicopter) aviation market. The recent win of the T800-LHT-800 down-select formed a firm foundation for this expansion. Garrett is developing the T800 in a partnership with the Allison Gas Turbine Division of General Motors Corporation, under the company name of Light Helicopter Turbine Engine Company (LHTEC). The T800 turboshaft engine (1300-shp, 1000-kW class), which has superior performance in this power class (10 to 30 percent better specific fuel consumption and power-to-weight than current production turboshaft engines), is designed to power the U.S. Army’s LHX light attack helicopter. Garrett is pursuing complementary technologies focused on serving a full spectrum of turboshaft engine requirements for the 1990s and beyond. Garrett is also teamed with General Electric Aircraft Engines (GEAE), for the Joint Turbine Advanced Gas Generator (JTAGG) demonstrator program. JTAGG supports the Integrated High Performance Turbine Engine Technology (IHPTET) initiative of doubling propulsion system capabilities by the year 2003. New technologies incorporated in the T800, and emerging technologies and concepts applicable to future turboshafts, are discussed.
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Scheibert, Klaus, Artemis Kostarigka, Udo Dannebaum, Abhijit Ambekar, Wenlin Cai, and Laurent Heidt. "Challenges with the Introduction of X-By-Wire Technologies to Passenger Vehicles and Light Trucks in regards to Functional Safety, Cybersecurity and Availability." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-01-0581.
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<div class="section abstract"><div class="htmlview paragraph">Classic vehicle production had limitations in bringing the driving commands to the actuators for vehicle motion (engine, steering and braking). Steering columns, hydraulic tubes or steel cables needed to be placed between the driver and actuator.</div><div class="htmlview paragraph">Change began with the introduction of e-gas systems. Mechanical cables were replaced by thin, electric signal wires. The technical solutions and legal standardizations for addressing the steering and braking systems, were not defined at this time.</div><div class="htmlview paragraph">Today, OEMs are starting E/E-Architecture transformations for manifold reasons and now have the chance to remove the long hydraulic tubes for braking and the solid metal columns used for steering.</div><div class="htmlview paragraph">X-by-wire is the way forward and allows for higher Autonomous Driving (AD) levels for automated driving vehicles. This offers new opportunities to design the vehicle in-cabin space.</div><div class="htmlview paragraph">This paper will start with the introduction of x-by-wire technologies. It will cover the three aspects of the transformation from line to wire; functional safety (fail operational), security, and availability.</div><div class="htmlview paragraph">It will also provide examples of two different implementation approaches, one from a classic OEM with a basic platform vehicle architecture and concept, and the other from the start-up company, REE Automotive, with their skateboard architecture and brand-new concept of REEcorner™ Vehicle Motion.</div></div>
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Ohata, Hitoshi, Toshikazu Nishibata, and Tetsuya Onose. "The Outline of the Five-Percent Power Uprate Project in Tokai-2." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29845.
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Reactor thermal power uprate (Power uprate) of operating light water reactors has long successful experiences in many nuclear power plants in the United States of America and European countries since late 1970’s. And it will be also introduced in Japan soon. This paper mainly describes the outline of the attempt of five-percent reactor thermal power uprate of Tokai No.2 Nuclear Power Station (Tokai-2) operated by the Japan Atomic Power Company (JAPC). It will be the leading case in Japan. Tokai-2 is GE type Boiling Water Reactor (BWR) of 1100 MW licensed electric power output and it commenced commercial operation in November 28, 1978. Power uprate is an effective approach for increasing electric power output. And it is recognized as one of the measures for effective and efficient use of existing Japanese operating nuclear power plants. It can contribute to inexpensive and stable electric power supply increase. Especially “Stretch Power Uprate (SPU)” requires only minor equipment modification or component replacement. It is also a countermeasure against global warming. Therefore it is a common theme to be accomplished in the near future for both Japanese electric power companies and government. JAPC started feasibility studies on power uprate in 2003. And in 2007, JAPC established a plan to achieve five-percent power uprate in Tokai-2 and announced this project to the public. This is a leading attempt in the Japanese electric power companies and it is the first case under the current Japanese regulatory requirements. In this plan, JAPC reflected lessons learned from preceding nuclear power plants in the United States and European countries, and tried to make most use of the performance of existing systems and components in Tokai-2 which have been periodically or timely renewed by utilizing more reliable and efficient design. JAPC plans to submit application documents to amend current License for Reactor Establishment Permit shortly. It will contain a complete set of revised safety analysis results based on the uprated reactor thermal power condition. Successful introduction of Tokai-2 power uprate will contribute to the establishment of regulatory process for power uprate in Japan and following attempts by other Japanese electric power companies.
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Paramonov, D. V., S. J. King, M. Y. Young, and R. Y. Lu. "Flow Induced Vibration and Fretting Wear: An Integrated Approach." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32828.
Full textAbstract:
Fuel assemblies are exposed to severe thermal, mechanical and radiation loads during operation. Global core and local fuel assembly flow fields typically result in fuel rod vibration. Under certain conditions, this vibration, when coupled with other factors, might result in excessive cladding fretting wear. This phenomenon is of the concern for nuclear fuel designers, especially in light of the need for higher burnup, longer cycle lengths, and operational safety margins in fuel designs. Understanding of (1) the fretting wear margins for a particular nuclear fuel design, (2) the probability of a fuel assembly exposed to a particular set of thermal, mechanical, flow and radiation conditions being at risk of excessive wear, and (3) the factors affecting fretting wear resistance, are important in order to better guide design, testing, and operational flexibility. In this paper, an integrated method to estimate fretting margin of nuclear fuel is presented, including its formulation, benchmark against experimental data and example application to in-core conditions. The major features of the method are as follows: • flow and rod vibration response are coupled through a linear structural analysis model, • flow field is determined using a sub-channel thermal-hydraulic code, • wear progression is treated as a time-dependent process, through taking into account impact of resulting rod-to-support clearance, • a possibility of a fluid-elastic instability is accounted for. Supporting data on basic wear mechanisms, flow field and fuel assembly fretting wear behavior obtained at a number of experimental facilities at Westinghouse Electric Company and Atomic Energy of Canada Limited are also presented. These facility include: • VIPER hydraulic test loop data where vibration response and wear are measured under prototypical flow conditions, and • autoclave fretting-wear machine steam employed to determine fretting-wear coefficients of fuel rod and grid-support designs.
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Obeid, Ahmad Fayyad, Eugene Bespalov, Dharam Sanghavi, Ahmad Almasri, Jose Magri, Majid Ismail Al Hammadi, A. M. Al Marzooqi, Kazuhito Kazumi Yoshimoto, Hajime Yamashita, and Ali Yousef Al Zaabi. "Offshore Installation of Rigless Shuttle ESP." In SPE/IADC Middle East Drilling Technology Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/202109-ms.
Full textAbstract:
Abstract Electric submersible pumps (ESPs) used as an artificial lift method have a relatively short life span despite the industry's efforts to improve reliability. The resulting economic impact realized in workover costs and production loss is substantial. This has driven efforts toward design change by introducing retrievable ESP independent of the completion string and hence extending ESP wells’ life cycle. This paper covers the company's first installation of a rigless shuttle ESP system, including a customized completion design and special deployment procedures. A comprehensive approach was taken to deploy this technology, from procurement to installation, in a detailed process. It started with acquiring reservoir data and setting up matching specifications for the required equipment in order to issue a competitive tender. Following technical evaluation of tender submissions, the most suitable technology was selected for the field trial. The completion design was then customized to accommodate the new technology without jeopardizing well integrity. Fit-for-purpose well barriers were incorporated in the completion design because conventional barriers were not applicable. Detailed running procedures were produced from dedicated workshops and risk assessment reviews. Project execution was closely monitored and firmly controlled. The company has accomplished the first successful offshore deployment of the shuttle ESP system in the MENA region. The system was deployed using tailored procedures for installation and comprehensive testing while ensuring compliance with well barrier requirements. Following successful deployment, the ESP performance was positively tested. Part of the project validation requirement was a rigless retrieval and redeployment the ESP system. The ESP retrieval process was challenging due to unexpected tar or asphaltene material encountered above the ESP. However, contingency retrieval procedures were promptly amended with detailed steps to overcome this challenge, which led to successful retrieval and redeployment of the ESP without NPT. This success is paving the way for a major change in the company's field development strategies by considering rigless, replaceable ESP systems instead of the conventional ESPs. This paper sheds the light on a new advancement in completion technology that has a strong potential to prevail for ESP-lifted wells in the future. The focus of the paper is on the design and execution parts, as well as installation and post-completion operations while maintaining sufficient well barriers―the challenging aspect that appears to be slowing down the wider use of this technology as a replacement of conventional ESP completions.
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Gupta, Alka, and Mojtaba Rajaee. "Integration of CFD-CHT Analyses to Develop Harley-Davidson Motorcycles." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-95108.
Full textAbstract:
Abstract With the ever-increasing demand to reduce the product development cycle, Harley-Davidson Motor Company (HDMC) utilizes diverse CAE (Computer-Aided Engineering) tools to develop its motorcycles. These CAE tools assist resolving fluid, thermal and/or structural design refinements and challenges while minimizing the need to use physical models or prototypes, to achieve our goal of a complete virtual product development cycle and decreased time-to-market. The growing computational power and resource availability enables the option to simulate more complex physics with higher resolution and accuracy. The compatibility of the various CAE tools available provide options to choose the best tool based on the physics required and integrate with other applications. This paper demonstrates an automated integration of a compact and complex vehicle CFD (Computational Fluids Dynamics) – CHT (Computational Heat Transfer) analysis, which provides a predictive solution for flow-thermal state of the vehicle, exhaust system, rider ambient, and electronic component internals. The focus of this paper is the methodology that encompasses physics of these models, the associated meshes, and the automated integration of the two. The paper discusses the utilization of aforementioned software tools to support a highly advanced and complex vehicle CAE flow-thermal predictive solution. Furthermore, the paper talks about how to arrive at a robust and detailed prediction of thermal state of vehicle with its electronic component internals such as LED (light-emitting diode), PCB (printed circuit board), and IC (integrated circuit) semiconductors, all driven by a combined external and internal thermo-fluidic flow and electronic operation waste heat. The paper exhibits the versatility of a single CAE model which combines a full vehicle external aerodynamics CFD model and a stripped down CHT model consisting of powertrain, exhaust, cooling system, rider, and partial bodywork which are significant to meet the analysis objectives. The early intervention of these CAE techniques in the motorcycle development process accelerates the component design evaluation by eliminating/modifying initial designs based on the analyses results and assists in making educated and well-informed decisions. The visual representation of the analysis findings provides extremely valuable information which are sometimes not possible to obtain in a physical test environment and can save re-testing time and avoid delays as the test community strives to get data from those systems and components. Our integrated CFD-CHT analysis method is comprised of full vehicle external aerodynamics CFD module with the export of local air conjugate heat transfer coefficients and reference temperatures, following the import of solid surface boundary temperatures computed via the computational heat transfer (CHT) module, and the automated integration and boundary data exchange iterations between the two modules. CHT module computes solid surface temperature of all heat emitting, and / or absorbing, vehicle components such as exhaust / powertrain, starter motor, and all electronic heat producing components, as well as manikin riders and vehicle components that may be impacted by heat emitting components. All three modes of heat transfer, including vehicle ambient radiation boundary conditions, are being considered in the model. Internal details of electronic components including, and not limited to, MOSFET (metal-oxide semiconductor field-effect transistor) semiconductors, LEDs, Thermal Interface Material (TIM), heat sink, etc., are included in the CHT module. The automated integration of CFD-CHT modules results in a converged full vehicle thermo-fluidic state of the vehicle in a steady-state or pseudo-transient duty. Similar approach is undertaken for EVs (electric vehicles) with details to the electronic PCB, and its components, and the battery pack Li-Ion cell internal levels.