Academic literature on the topic 'Associated Electrical Industries Ltd'
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Journal articles on the topic "Associated Electrical Industries Ltd"
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Kogi, Kazutaka. "Linking better shiftwork arrangements with safety and health management systems." Revista de Saúde Pública 38, suppl (December 2004): 72–79. http://dx.doi.org/10.1590/s0034-89102004000700011.
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OBJECTIVE: Various support measures useful for promoting joint change approaches to the improvement of both shiftworking arrangements and safety and health management systems were reviewed. A particular focus was placed on enterprise-level risk reduction measures linking working hours and management systems. METHODS: Voluntary industry-based guidelines on night and shift work for department stores and the chemical, automobile and electrical equipment industries were examined. Survey results that had led to the compilation of practicable measures to be included in these guidelines were also examined. The common support measures were then compared with ergonomic checkpoints for plant maintenance work involving irregular nightshifts. On the basis of this analysis, a new night and shift work checklist was designed. RESULTS: Both the guidelines and the plant maintenance work checkpoints were found to commonly cover multiple issues including work schedules and various job-related risks. This close link between shiftwork arrangements and risk management was important as shiftworkers in these industries considered teamwork and welfare services to be essential for managing risks associated with night and shift work. Four areas found suitable for participatory improvement by managers and workers were work schedules, ergonomic work tasks, work environment and training. The checklist designed to facilitate participatory change processes covered all these areas. CONCLUSIONS: The checklist developed to describe feasible workplace actions was suitable for integration with comprehensive safety and health management systems and offered valuable opportunities for improving working time arrangements and job content together.
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TAGUCHI, Toshio, and Masanori OHSONE. "Compliance Activities of Mitsubishi Heavy Industries, Ltd." Journal of The Institute of Electrical Engineers of Japan 131, no. 6 (2011): 357–58. http://dx.doi.org/10.1541/ieejjournal.131.357.
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Nagaraj, B. V. "Concurrent engineering at Titan Industries Ltd: a case study from the watch industry." International Journal of Manufacturing Technology and Management 6, no. 3/4 (2004): 345. http://dx.doi.org/10.1504/ijmtm.2004.005409.
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Sato, Shuji, and Shizuo Suzuki. "IHI Zone Logic Application to Electrical Outfitting on Highly Sophisticated Ships." Journal of Ship Production 6, no. 02 (May 1, 1990): 93–100. http://dx.doi.org/10.5957/jsp.1990.6.2.93.
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Outfitting electrical cable in highly sophisticated ships, such as research vessels and patrol boats, has a significant impact on every aspect of ship construction, modernization, overhaul, and repair. In other words, cost, schedule adherence, and quality for very sophisticated ships are fully dependent on the performance of the electrical work. Ishikawajima-Harima Heavy Industries, Co., Ltd. (IHI) has been exploiting zone logic, also recognized as group technology, for construction of virtually all ship types. But, the extensive cable footage in sophisticated ships requires special considerations and techniques. This paper presents practical design and production processes for zone outfitting electric cable. Special focus is on:functional and detail design,conversion of system-oriented design data to zone-oriented work packages called "pallets," andwork methods currently employed in IHI shipyards.
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Lloyd, M. R., and M. Mason. "Large Electrical Machines: Powering a Business Renaissance for the Twenty-First Century." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 207, no. 2 (May 1993): 69–81. http://dx.doi.org/10.1243/pime_proc_1993_207_065_02.
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GEC ALSTHOM Large Machines Limited is a traditional heavy engineering company specializing in electrical machines (Fig. 1), and has successfully evolved over 90 years of operation. This historical success, however, led to a very functionalized layout of workshops and facilities totally unsuited to the present dynamic world market. Through a company-wide improvement programme the company has been restructured within the existing buildings and site to take advantage of the latest cellular technology, using numerous innovative concepts in manufacture and adoption of just in time (JIT), total quality management (TQM) and design for manufacture (DFM) concepts in a low volume manufacturing environment. The project involved the complete redesign of the factory layout, introduction of new products and equipment and concepts, resulting in dramatically improved leadtimes, inventories and sales per employee. The case study is probably unique in that the programme was executed while increasing full production and involved the adoption of techniques often only associated with volume manufacture.
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Mazur, Anna M., Tomasz Korniluk, and Roman Domański. "Measuring and Testing the Parameters of a Battery Pack Designed for Powering Unmanned Aircraft Systems at Various Temperatures." Transactions on Aerospace Research 2017, no. 3 (September 1, 2017): 46–62. http://dx.doi.org/10.2478/tar-2017-0021.
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Abstract This paper describes results of tests dedicated to studying – in simulated environmental conditions – operation of a battery pack designed for powering unmanned aircraft systems. In particular, the tests concerned determining the electrical parameters of battery packs, with and without radiators, during their operation in changing environmental conditions and resistance to large temperature fluctuations. Amicell, a high density lithium polymer battery manufactured by the Israeli Amit Industries ltd., was selected for testing. The test results present characteristics of the batteries tested in different temperatures and allow for designing and trying out proper battery protections against environmental conditions, with the intention to attain continuous and correct operation. The tests have been carried out in the accredited Environmental Test Laboratory which is part of the Department of Avionics of the Institute of Aviation in Poland.
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Erhun, Mercy O., and Daniel O. Johnson. "A Legal Framework for Sustainable Electrical Energy Industry in Nigeria." Energy and Environment Research 8, no. 2 (November 26, 2018): 45. http://dx.doi.org/10.5539/eer.v8n2p45.
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Nigeria has fairly adequate endowment of energy resources, yet the country is lagging behind in terms of access to reliable and affordable energy supply. The country faces serious challenges as a result of declining electricity generation from domestic power plants. This steady decline has led to a near failure of the electric power sector. Electricity supply required to place Nigeria on the path of economic growth and sustainable development is in very short supply. The country has just 45 electrification rate, with only 54.7% of her population electrified as at 2016. More than 80 million people are still without access to electricity with frequent power failure. This has contributed to the slow economic growth currently experienced in Nigeria. Regular power supply is the hallmark of a developed economy. Nigeria is blessed with energy resources which could be harnessed to provide various modern energy services and which could have played essential role in the effort to alleviate poverty in the country. There is failure to mobilize the required resources for the development of energy resources in Nigeria. Around 1,500MW of Nigeria’s hydropower potential is currently being used, contributing to about 30% of the total amount of electricity produced. The large amount of gas associated with oil exploration operations is being wasted through flaring instead of being valuably used for power generation and industrial processes. Current patterns of production and consumption of energy are not sustainable. This paper highlights the importance of sustainable electric energy development in attaining sustainable development in Nigeria.
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Masubuchi, Nami, Marito Araki, Kaho Shioiri, Sota Kitazawa, Yoshihiko Kihara, Yuta Ohira, Fumiko Nomura, Tadashi Matsuura, and Norio Komatsu. "Use of Ppmx-T003 As a Potent Inhibitor of Erythrocytosis in Polycythemia Vera." Blood 136, Supplement 1 (November 5, 2020): 31. http://dx.doi.org/10.1182/blood-2020-138387.
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Iron incorporation through transferrin (Tf) and its receptor, TfR1, plays a critical role in erythropoiesis. We hypothesized that blockade of TfR1 may be a promising strategy to suppress erythrocytosis observed in polycythemia vera (PV). To examine this possibility, we developed PPMX-T003, a monoclonal antibody against human TfR1, through phage display screening. PPMX-T003 was observed to bind to TfR1 with a high affinity(Kd= 3.56×10-10)and presented strong ability to suppress the growth of PV model cell lines such as HEL (EC50= 0.07 nM). PPMX-T003 induced TfR1 internalization but blocked the recycling of the receptor presumably because it was strongly bound, even in the endosome, which switched the fate of TfR1 from recycling to degradation. Consequently, the PPMX-T003 treatment greatly reduced the intracellular iron concentration, along withcell cycle arrest in the G2/M phase in HEL cells. In contrast, PPMX-T003 failed to block cell proliferation in human umbilical vein endothelial cells that expressed a subtle level of TfR1. These findings suggest that PPMX-T003 is a potent inhibitor for cells whose growth is dependent on iron incorporation by TfR1. This led us to examine whether PPMX-T003 blocked the endogenous erythroid colony (EEC) formation in erythroid progenitor cells in PV. We observed that PPMX-T003, at a concentration of 40 ng/mL, exhibited complete blockade of EEC formation inJAK2 V617F-positive PV patients' cells. Although hydroxycarbamide (HU) and phlebotomy are well-established treatment strategies for the management of hematocrit in PV patients, there is a risk of secondary leukemia associated with HU treatment and side effects such as fatigue and restless leg syndrome due to phlebotomy-induced iron deficiency. Therefore, we suggest PPMX-T003, which may preferentially suppress erythrocytosis without changing the iron level in peripheral blood, as an alternative treatment for PV patients. Disclosures Ohira: PPMX: Current Employment, Current equity holder in private company. Nomura:PPMX: Current Employment. Matsuura:PPMX: Current Employment. Komatsu:Takeda Pharmaceutical Co., Ltd, Novartis Pharma KK, Shire Japan KK: Speakers Bureau; AbbVie: Other: member of safety assessment committee in M13-834 clinical trial.; PPMX: Consultancy, Research Funding; Meiji Seika Pharma Co., Ltd.: Patents & Royalties: PCT/JP2020/008434, Research Funding; Otsuka Pharmaceutical Co., Ltd., PharmaEssentia Japan KK, AbbVie GK, Celgene KK, Novartis Pharma KK, Shire Japan KK, Japan Tobacco Inc: Consultancy; Otsuka Pharmaceutical Co., Ltd., Shire Japan KK, Novartis Pharma KK, PharmaEssentia Japan KK, Fuso Pharmaceutical Industries, Ltd., Fujifilm Wako Pure Chemical Corporation, Chugai Pharmaceutical Co., Ltd., Kyowa Hakko Kirin Co., Ltd., Takeda Pharmaceutica: Research Funding.
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Masrikhan, Masrikhan, and Dwi Agustina Kurniawati. "FLOW SHOP SCHEDULING BASED ON PALMER-NEH, GUPTA-NEH AND DANNENBRING-NEH ALGORITHMS TO MINIMIZE THE ENERGY COST." SINERGI 25, no. 2 (January 23, 2021): 111. http://dx.doi.org/10.22441/sinergi.2021.2.001.
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In the manufacturing industry, the most widely used equipment is equipment that uses electricity. Electricity cost is one of the highest operational production costs after labor cost. So, it is very important to save and optimize the use of electrical equipment. One of the manufacturing industries is Taru Martani, Ltd. This research aims to minimize the energy cost by proposing three hybrid algorithms, namely Palmer-NEH, Gupta-NEH, and Dannenbring-NEH methods. Some scheduling evaluation is done using the Efficiency Index (EI) and Relative Error (RE) parameters. It is concluded that the Palmer-NEH and Gupta-NEH methods are the best methods with the lowest energy cost compared with company's actual method and the Dannenbring-NEH method. Based on the Palmer-NEH and Gupta-NEH methods, both methods can save the makespan up to 399.13 minutes or 6.65 hours compared with the company's actual method. With these methods, the company is also able to save the production cost by Rp. 818,043.00.
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Preston, I. M. H. "Availability of electrical power." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 92, no. 1-2 (1987): 91–106. http://dx.doi.org/10.1017/s0269727000009556.
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SynopsisThe organisation of the generation and supply of electricity in Scotland by the South of Scotland Electricity Board and the North of Scotland Hydro Electric Board is detailed and differences from the other nationalised energy industries in Scotland and from the arrangements for the supply of electricity in England and Wales noted. The present plant position is described and the flexibility in the fuels used underlined. The experiences of the last thirty years are analysed and an account given of the response of the Boards to the crises of dramatic oil price increases and the 1984/85 dispute in the coal industry. Attention is given to the forward planning problems arising from the long construction time of a new station and the delays that may be involved with public inquiries. The opportunities for exporting power to England after the modest anticipated rises in Scottish demands are met are cited as a factor in the budgetting. The difficulties the Combined Heat and Power projects, being studied for a number of major cities including Edinburgh, present to the Boards are listed. Finally the implications for suppliers and contractors of the necessary replacement before the end of the century of equipment associated with the distribution system are noted.
Books on the topic "Associated Electrical Industries Ltd"
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Ball, Norman R. Ferranti-Packard: Pioneers in Canadian electrical manufacturing. Montreal: McGill-Queen's University Press, 1994.
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Ltd, ICON Group, and ICON Group International Inc. DELTA ELECTRICAL INDUSTRIES LTD.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series). 2nd ed. Icon Group International, 2000.
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Ltd, ICON Group, and ICON Group International Inc. DELTA ELECTRICAL INDUSTRIES LTD.: Labor Productivity Benchmarks and International Gap Analysis (Labor Productivity Series). 2nd ed. Icon Group International, 2000.
Find full textBook chapters on the topic "Associated Electrical Industries Ltd"
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"List of reports available from ERA Technology Ltd, formerly British Electrical and Allied Industries Research association (ERA), relating to transformers and surge phenomena therein." In J & P Transformer Book, 964–67. Elsevier, 2007. http://dx.doi.org/10.1016/b978-075068164-3/50020-x.
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"Historical Changes in Large River Fish Assemblages of the Americas." In Historical Changes in Large River Fish Assemblages of the Americas, edited by Blaine D. Snyder. American Fisheries Society, 2005. http://dx.doi.org/10.47886/9781888569728.ch23.
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<em>Abstract.</em>—The Susquehanna River drains portions of New York, Pennsylvania, and Maryland, and is the 18th largest river (by discharge) in the United States. Although relatively undeveloped (i.e., 63% of the basin is forested, whereas 9% is urban), the river and its fish assemblage have experienced stresses associated with coal mining, logging, electric power generation, population growth, and agricultural and industrial operations. Surveys of Susquehanna River fishes have a rich history, with the qualitative surveys of 19th century naturalists giving way to the quantitative studies of 20th century environmental impact assessment specialists. Ichthyofaunal surveys of the Susquehanna drainage were compiled and summarized herein to examine species composition, losses, and additions. Collection records indicate that the Susquehanna River drainage supports a diverse and relatively stable assemblage of 60 native species (or 51% of all species), 33 (28%) alien species, 22 (19%) euryhaline or diadromous fishes, and 2 (2%) extirpated or extinct species. Stocking efforts, bait-bucket releases, range extensions, and new species descriptions accounted for most contemporary species additions. Overall reduction in species richness has been limited to one cyprinid that has not been collected since 1862, and one darter species that has not been collected since 1987. Construction of four large hydroelectric dams on the lower Susquehanna (in the early 20th century) eliminated 98% of historic anadromous fish habitat, leading to notable reductions in commercial/ recreational clupeid stocks. Recent increases in the occurrence and abundance of anadromous fish in the Susquehanna River are a credit to an extensive restoration program that began with fish trap and transfer operations in 1972, included fish culture programs, and led to the installation of fish passage technologies at each of the four dams.
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"Historical Changes in Large River Fish Assemblages of the Americas." In Historical Changes in Large River Fish Assemblages of the Americas, edited by Blaine D. Snyder. American Fisheries Society, 2005. http://dx.doi.org/10.47886/9781888569728.ch23.
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<em>Abstract.</em>—The Susquehanna River drains portions of New York, Pennsylvania, and Maryland, and is the 18th largest river (by discharge) in the United States. Although relatively undeveloped (i.e., 63% of the basin is forested, whereas 9% is urban), the river and its fish assemblage have experienced stresses associated with coal mining, logging, electric power generation, population growth, and agricultural and industrial operations. Surveys of Susquehanna River fishes have a rich history, with the qualitative surveys of 19th century naturalists giving way to the quantitative studies of 20th century environmental impact assessment specialists. Ichthyofaunal surveys of the Susquehanna drainage were compiled and summarized herein to examine species composition, losses, and additions. Collection records indicate that the Susquehanna River drainage supports a diverse and relatively stable assemblage of 60 native species (or 51% of all species), 33 (28%) alien species, 22 (19%) euryhaline or diadromous fishes, and 2 (2%) extirpated or extinct species. Stocking efforts, bait-bucket releases, range extensions, and new species descriptions accounted for most contemporary species additions. Overall reduction in species richness has been limited to one cyprinid that has not been collected since 1862, and one darter species that has not been collected since 1987. Construction of four large hydroelectric dams on the lower Susquehanna (in the early 20th century) eliminated 98% of historic anadromous fish habitat, leading to notable reductions in commercial/ recreational clupeid stocks. Recent increases in the occurrence and abundance of anadromous fish in the Susquehanna River are a credit to an extensive restoration program that began with fish trap and transfer operations in 1972, included fish culture programs, and led to the installation of fish passage technologies at each of the four dams.
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Raitz, Karl. "Kentucky Distilling." In Making Bourbon, 23–34. University Press of Kentucky, 2020. http://dx.doi.org/10.5810/kentucky/9780813178752.003.0003.
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In 1810 more than 2,000 distilleries operated in Kentucky. Though widely distributed throughout the state, the largest number of distilleries operated in the Bluegrass region, where some counties had more than 150 works. Frontier distillers used whiskey to barter and as currency in the cash economy. The highest-capacity distilleries operated along the Ohio River between Louisville and Cincinnati. By the 1830s, some distillers were adopting new industrial techniques as they became available, including new construction materials, machinery, and steam, electrical, and internal combustion power sources. From the 1840s through the 1890s, distillers focused their works in the limestone lands of the Bluegrass and Pennyroyal regions. By the eve of Prohibition in 1919, only 182 distilleries remained in operation. The landscape created by distillers was the product of a complex, multidimensional historical ecology. Distillers engaged in locational decision making; they adopted applicable technologies, inventions, and patents and established business links with associated industries while being subjected to increasing state and federal regulation and more stringent revenue policies.
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Emsley, John. "Mad cats and mad hatters: accidental mercury poisoning." In The Elements of Murder. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780192805997.003.0007.
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There are two kinds of mercury poisoning: chronic poisoning in which the body is subjected to regular small doses of mercury which exceed the amount it can excrete every day, and acute poisoning, in which a person is exposed to a life-threatening dose. It is the former type of poisoning that this chapter is about. Large doses deliberately given will be the topic of the next chapter. Chronic mercury poisoning used to be an occupational hazard for many employees. Those affected suffered from the physical symptoms of fatigue, general weakness, and a tremor of the hands, to the extent that their handwriting became spidery, and these symptoms were due to the effects on the central nervous system. More serious were the psychological symptoms such as irritability, depression, and a paranoid belief that other people were persecuting them, all of which came as a result of mercury seeping into the brain. The groups of workers most at risk from chronic mercury poisoning were gilders, hat makers, dentists, those in the electrical industries – and detectives. Most of these occupations no longer use mercury, and in those that do it is strictly controlled so that the risks are now negligible. Monitoring those exposed to mercury in their employment can be done via their urine or blood. Yet it was a long struggle to make people aware of the dangers this metal posed, and along the way there were some major examples of exposure involving hundreds of thousands of individuals, many of whom had their lives made wretched by mercury. Indeed the campaign against mercury really started 300 years ago when an Italian physician was the first to become interested in the link between occupation and illness. That physician was the surgeon Bernardino Ramazzini (1633–1714), who is today regarded as the founder of occupational and industrial medicine. In 1700 he wrote the first book on the subject: De Morbis Artificum Diatriba [The Diseases of Workers]. In it he outlined the health hazards associated with various chemicals, dust, and metals encountered by those working in 52 different occupations, including the miners who worked in the mercury mines.
Conference papers on the topic "Associated Electrical Industries Ltd"
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Wetherington, Thomas I. "Cogeneration Systems and the Utility Interface." In ASME 1985 Citrus Engineering Conference. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/cec1985-3105.
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Cogeneration is defined as the simultaneous production of electricity and useful thermal energy. This production of electricity and thermal energy from the common source is more efficient than separate production of thermal energy and electrical energy. Because of the need for both thermal and electrical energy, cogeneration systems have been a part of industrial energy systems since early in this century. In fact, until the early 1950s, over half of industrial electrical energy use was produced from cogeneration systems. A favorable balance between thermal energy needs and electrical needs exists in many industries, and this balance serves as the driving force for the use of cogeneration systems. Several things led to the change of balance between the thermal and electrical requirements of industry which led to a general decline in the use of cogeneration over the next thirty years. The increase in the amount of electrical energy in the energy equation and the development of industry without associated thermal requirements were major factors in the development of a market for electricity from central generating plants. These large special-purpose generating plants could approach the efficiency and cost of cogeneration plants because of economies of scale and the variety of fuels acceptable in these plants. The availability of electricity from utilities at a reasonable price, combined with low fuel prices, allowed efficient plant operation independent of a balance between thermal and electrical energy. This reduction in the use of cogeneration systems in industrial plants continued into the early 1970s when the Arab oil embargo caused a precipitous rise in the cost of fuel and reduced growth of electrical use, new environmental restrictions and inflation began to eat into the economies of scale that had been realized with the construction of larger and more efficient electrical plants. Paper published with permission.
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Vyas, Sandeep. "Internal Corrosion Monitoring System Selection for Cross Country Natural Gas Pipeline: A Case Study of SHPPL." In ASME 2015 India International Oil and Gas Pipeline Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/iogpc2015-7945.
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Reliance Gas Pipelines Limited (RGPL) is currently implementing a gas pipeline project from Shahdol, Madhya Pradesh to Phulpur, Uttar Pradesh for evacuation of gas produced from Coal Bed Methane (CBM) blocks owned by Reliance Industries Ltd. This pipeline will be hooked up with GAIL’s HVJ Pipeline at Phulpur. Over all Pipeline system includes 312 km (approx.) long trunk line, and associated facilities such as Compressor Station at Shahdol, Intermediate Pigging facilities, Metering & Regulating facilities at Phulpur and 12 No. Mainline valve stations. Gas produced from CBM blocks will be dehydrated within Gas Gathering Station facilities of CBM Project located upstream of pipeline Compressor station at Shahdol. Gas received at pipeline battery limit is dry and non-corrosive gas in nature, Internal corrosion is not expected in normal course of operation, however internal corrosion of the natural gas pipeline can occur when the pipe wall is exposed to moisture and other contaminants either under process upset conditions or under particular operating conditions. Even though internal corrosion is not expected during normal course of operations, to take care of any eventuality, it is proposed to implement Internal Corrosion Monitoring (ICMS) system in this project. ICMS will provide an efficient and reliable means of continuous monitoring internal corrosion. Internal Corrosion Monitoring (ICMS) system is used as a part of overall integrity management framework; to achieve two objectives viz., verify the corrosive behaviour of gas and to verify the efficacy of applied preventive actions. Philosophy involved in evaluating a suitable CM technique would include : • Applicable corrosion damage mechanisms, anticipated corrosion rates and probable locations. • Suitable CM technique and location based on process condition, system corrosivity, water content, pigging facilities, available corrosion allowance, design life, maintenance etc., • Measurement frequency. Some of the Corrosion Monitoring techniques used for pipeline and of relevance are: • Weight-loss Corrosion Coupons (CC), • Electrical Resistance probes (ER), • Linear Polarization Resistance Probe (LPR) • Ultrasonic Thickness Measurement (UT) • Sampling Points (SP) This paper discusses the merits / demerits of these corrosion monitoring techniques, considerations for selecting a specific technique for the Shahdol – Phulpur Gas Pipeline Project and highlights the implementation of the internal corrosion monitoring system.
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Horiuchi, Takeshi, Tomoki Taniguchi, Ryozo Tanaka, Masanori Ryu, and Masahide Kazari. "Application of Conjugate Heat Transfer Analysis to Improvement of Cooled Turbine Vane and Blade for Industrial Gas Turbine." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75669.
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In this paper, the Conjugate Heat Transfer (CHT) analysis, which utilizes commercial software STAR-CCM+ with detailed models and practical mesh size, was performed to the first stage cooled turbine airfoils for an industrial gas turbine produced by Kawasaki Heavy Industries, Ltd. (KHI). First its estimation accuracy was evaluated by comparing with the measurement results obtained with thermal index paint (TIP) and a pyrometer. After the validation of the CHT analysis, the metal temperature distribution was understood with the flow phenomena associated with it from the analysis results. To the parts where the metal temperature is locally high, then, the improvements of the cooling performance were considered with the CHT analysis and their effects were finally confirmed by measuring the metal temperature in the actual engine. The investigation reveals that the CHT analysis, which is validated with measurement results, makes it possible for cooling designers to efficiently improve the cooling performance of turbine airfoils with the adequate estimation accuracy, thus enhancing their durability for the reliability of gas turbines.
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Khalil, M. Shahid, and Sajjad Akbar. "Assessment of Life of Pressure Vessels and Pipes in Crude Oil and Gas Industries." In ASME 2013 Power Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/power2013-98024.
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Fitness-for-service (FFS) assessments are quantitative engineering evaluations which are required to be preformed periodically in accordance with the published codes and standards to demonstrate the structural integrity of in-service components. This report summarizes the results of nondestructive in-service-inspection (ISI) of pressurized components conducted for condition assessment of the Dakhani Gas Processing Plant of Oil and Gas Development Corporation Ltd. (OGDCL) for the first time since its commissioning in December,1989. The non-destructive evaluation of the plant was required because of concerns for occurrence of sulphide-stress-cracking. Hydrogen embrittlement, hydrogen-including-cracking, weight-loss-corrosion, sulphur-stress-corrosion due to determental service conditions at Dakhani having low PH, High H2S, high chlorides and pressure of CO2. The results have shown that microstructural changes associated with first and second stage of hydrogen attack have occurred in almost all of the pipe joints and pressure vessels. Hardness of some vessels has even exceeded the NACE limit of 220 HB. Effect of second stage of hydrogen attack are dominant in pipe joints, resulting in loss of hardness and strength because of decarburization. The results based on ultrasonic attenuation monitoring also indicate degradation of components. Random rounded indications have also been observed in some pipe joints during X-Ray radiographic testing that could serve as sites for failure initiation. The corrosion-under-insulation is observed for joints of piping spreading over a significant length. Localized corrosion and pitting is also observed in some locations of pressure vessels and piping. Ultrasonic thickness gauging has shown a significant variation in thickness for dish end and shell of some pressure vessels as well as for various joints of piping. In absence of periodic ISI data for the plant and keeping in view the results of non-destructive evaluation summarized above, the end-of-life (EOL) assessment of pressure vessels and piping is not possible and operation of the plant should be continued with a degree of caution. Any estimate of safe life assessment of the plant made at this stage would require revision on the basis of observed level of degradation through essential periodic in-service monitoring. In order to cope with the situation, it is recommended that monitoring of further degradation of microstructure and hardness along with flaw growth should be carried out after a period of 8x103 hours. Necessary remedial measures for rectification of flaws are requested. Non-destructive strain gauging is recommended to estimate data for safe life assessment of pressure vessels. Thermographic scanning of on-line in-service insulated pipelines is proposed for monitoring corrosion-under-insulation during plant operation.
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Chorney, Terris, and Denise Hamsher. "The Evolution of Risk Management at Enbridge Pipelines." In 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-100.
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1999 marks an important anniversary for Enbridge Pipelines Inc. of Canada and its U.S.-based affiliate, the Lakehead Pipe Line Company Ltd.: for 50 years we have been the primary link between the large oil production areas of western Canada and major market hubs in the U.S. midwest and eastern Canada. In retrospect, this strong history of success is chiefly due to thorough and logical planning and choice selection in all aspects of company endeavors. At Enbridge, as in countless other firms in a wide-range of industries, decision making was often the product of expert consensus and years of solid experience in dealing with similar situations. This approach has worked well for Enbridge and our stakeholders for five decades, as evidenced by the reliability, efficiency, and safety record of our pipeline system. However, as the millenium nears, we are increasingly finding formalized processes that integrate quantitative models and qualitative analysis helpful in planning and execution for both the short- and long-term. Several broad trends at the root of this movement include the heightened pace of change; the increasingly complex web of relevant factors; the growing magnitude of the consequences associated with sub-optimal decisions; the need for thorough documentation; and the apparent benefits of a framework that enables objectivity and consistency. In short, an approach that completely and systematically evaluates the multitude of dynamic factors that affect the ultimate outcome of the matter at issue is necessary. Although the term “risk management” is now often used to describe this process, Enbridge — along with many other responsible firms in the pipeline operating and other industries — has always practiced the underlying principles. This paper addresses the background of “risk management” in both the Canadian and U.S. pipeline industry, as well as accepted theory. It also encompasses the progression of risk management at Enbridge Pipelines, up to and including current initiatives. The usefulness of risk analysis, risk assessment, and risk management tools will be discussed, along with the overriding necessity of a well thought-out process, firm corporate commitment, and qualified expertise. Much of the focus will address the ongoing evolution and maturity of a comprehensive and well-integrated risk management program within the Enbridge North American business units. The criticality of maintaining focus on the core business function — in this case, pipeline operations — will also be addressed. In addition, past learning’s as well as future opportunities and challenges will be reviewed.
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Horikawa, Atsushi, Kunio Okada, Masato Yamaguchi, Shigeki Aoki, Manfred Wirsum, Harald H. W. Funke, and Karsten Kusterer. "Combustor Development and Engine Demonstration of Micro-Mix Hydrogen Combustion Applied to M1A-17 Gas Turbine." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-59666.
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Abstract Kawasaki Heavy Industries, LTD. (KHI) has research and development projects for a future hydrogen society. These projects comprise the complete hydrogen cycle, including the production of hydrogen gas, the refinement and liquefaction for transportation and storage, and finally the utilization in a gas turbine for electricity and heat supply. Within the development of the hydrogen gas turbine, the key technology is stable and low NOx hydrogen combustion, namely the Dry Low NOx (DLN) hydrogen combustion. KHI, Aachen University of Applied Science, and B&B-AGEMA have investigated the possibility of low NOx micro-mix hydrogen combustion and its application to an industrial gas turbine combustor. From 2014 to 2018, KHI developed a DLN hydrogen combustor for a 2MW class industrial gas turbine with the micro-mix technology. Thereby, the ignition performance, the flame stability for equivalent rotational speed, and higher load conditions were investigated. NOx emission values were kept about half of the Air Pollution Control Law in Japan: 84ppm (O2-15%). Hereby, the elementary combustor development was completed. From May 2020, KHI started the engine demonstration operation by using an M1A-17 gas turbine with a co-generation system located in the hydrogen-fueled power generation plant in Kobe City, Japan. During the first engine demonstration tests, adjustments of engine starting and load control with fuel staging were investigated. On 21st May, the electrical power output reached 1,635 kW, which corresponds to 100% load (ambient temperature 20 °C), and thereby NOx emissions of 65 ppm (O2-15, 60 RH%) were verified. Here, for the first time, a DLN hydrogen-fueled gas turbine successfully generated power and heat.
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Luo, Sha, Yunkai Qian, Mingjun Ren, Liang Qin, and Xu Wang. "Hydrogen Concentration Measuring System Designed for Severe Accidents in Containment." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66375.
Full textAbstract:
Extensively released hydrogen due to zirconium-water reaction during severe accidents in containment of pressurized water reactor raises explosion crisis. Since the containment is the last barrier for fatal irradiation species, efficient measures should be implemented to restrain the hydrogen. Hence, hydrogen elimination and monitor devices are wildly applied to address this issue. Detection of hydrogen once has been conducted by a traditional hydrogen concentration measuring system with sampling devices and hydrogen sensors that located outside the containment. This arrangement, however, is a compromise between actual requirements for hydrogen measuring device and absence of favorable hydrogen sensors which could be applied in the harsh environment under severe accidents. Most recently, R&D of hydrogen concentration measuring system with in-situ hydrogen sensor has attracted increasing attention. Mitsubishi Heavy Industries, Ltd is focusing their job on an electrochemical hydrogen sensor based on solid state electrolyte. Besides, AREVA has developed a system depending on thermal conductivity detector associated with catalytic combustion sensor which requires external power supply to heat the assembly. In PERIC, we have developed a hydrogen concentration measuring system with in-situ hydrogen sensor which can be set in accident confident area. The hydrogen sensor is originally based on catalytic recombination of hydrogen and oxygen. Generally, catalyst prepared using noble metals such as platinum and palladium is scientifically loaded in the hydrogen sensor to serve as hydrogen sensitive material. On the event of severe accidents, mixture of hydrogen and air can spontaneously diffuse into the hydrogen sensor, where, part of the mixture is involved in a chemical exothermic reaction on the catalyst to generate water and heat. Generally, an increased concentration of hydrogen will raise relatively higher reaction temperature of the hydrogen sensor. The hydrogen concentration related temperature of the hydrogen sensor is detected using steel armored thermocouple. Besides, environmental temperature and pressure in the containment are also acquired to assist calculation. All the data are transferred to a signal processing cabinet, which, performs the calculation and indication functions using programmable logic controller and digital display device, respectively. There is no organic material, mechanical moving and power consumption part in the hydrogen sensor and thermocouple. The system indicated reliable performance in simulated containment under condition of high temperature, pressure, steam, and etc. The hydrogen concentration measuring system illustrated excellent endurance to poisoning species such as iodine and aerosol. Furthermore, the hydrogen sensor also suggested high resistance to irradiation. The system can survive a severe earthquake, and its seismic certification toward to safety shutdown earthquake is class I. Over 80 systems so far have be applied in pressurized water reactor in China and or Pakistan. The latest model is designed according to requirements of CAP1400.
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Chen, Bo, Wei Luo, Pushkar Agashe, Lei Feng, Zicheng Ge, and Yang Li. "Development of Model-Based Embedded Control Course Curriculum for Next Generation of Automotive Engineers." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13240.
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Hybrid Electric Vehicle (HEV) and pure Electric Vehicle (EV) are potential technologies to reduce fuel consumption and emissions in transportation sector. To educate next generation of automotive engineers with strong background in hybrid/electric drive vehicles, Michigan Technological University and partnering institutions General Motors, AVL, Argonne National Laboratory, Woodward, and MathWorks, have built an HEV/EV interdisciplinary program to develop curriculum for the education and outreach in transportation electrification. Model-based design is emerging as an effective method to solve complicated control problems in automotive and aerospace industries. This paper presents the development of model-based embedded control course curriculum, one of the courses of Michigan Tech HEV/EV interdisciplinary program, to prepare students for their future career in automotive controls. The course goals, the development of teaching materials and associated laboratories, and the design of final project, are discussed. The developed course has been offered in Spring semesters since 2011 and received very positive feedback from students both in Mechanical Engineering – Engineering Mechanics (MEEM) and Electrical and Computer Engineering (ECE) Departments at Michigan Tech.
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Prassinos, Peter G., John W. Lyver, and Chinh T. Bui. "Risk Assessment Overview." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63490.
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Risk assessment is used in many industries to identify and manage risks. Initially developed for use on aeronautical and nuclear systems, risk assessment has been applied to transportation, chemical, computer, financial, and security systems among others. It is used to gain an understanding of the weaknesses or vulnerabilities in a system so modification can be made to increase operability, efficiency, and safety and to reduce failure and down-time. Risk assessment results are primary inputs to risk-informed decision making; where risk information including uncertainty is used along with other pertinent information to assist management in the decision-making process. Therefore, to be useful, a risk assessment must be directed at specific objectives. As the world embraces the globalization of trade and manufacturing, understanding the associated risk become important to decision making. Applying risk assessment techniques to a global system of development, manufacturing, and transportation can provide insight into how the system can fail, the likelihood of system failure and the consequences of system failure. The risk assessment can identify those elements that contribute most to risk and identify measures to prevent and mitigate failures, disruptions, and damaging outcomes. In addition, risk associated with public and environment impact can be identified. The risk insights gained can be applied to making decisions concerning suitable development and manufacturing locations, supply chains, and transportation strategies. While risk assessment has been mostly applied to mechanical and electrical systems, the concepts and techniques can be applied across other systems and activities. This paper provides a basic overview of the development of a risk assessment.
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Wren, D. J., N. Popov, and V. G. Snell. "Validation of Physics and Thermalhydraulics Computer Codes for Advanced CANDU Reactor Applications." In 12th International Conference on Nuclear Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/icone12-49102.
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Atomic Energy of Canada Ltd. (AECL) is developing an Advanced CANDU Reactor (ACR) that is an evolutionary advancement of the currently operating CANDU 6 reactors. The ACR is being designed to produce electrical power for a capital cost and at a unit-energy cost significantly less than that of the current reactor designs. The ACR retains the modular CANDU concept of horizontal fuel channels surrounded by a heavy water moderator. However, ACR uses slightly enriched uranium fuel compared to the natural uranium used in CANDU 6. This achieves the twin goals of improved economics (via large reductions in the heavy water moderator volume and replacement of the heavy water coolant with light water coolant) and improved safety. AECL has developed and implemented a software quality assurance program to ensure that its analytical, scientific and design computer codes meet the required standards for software used in safety analyses. Since the basic design of the ACR is equivalent to that of the CANDU 6, most of the key phenomena associated with the safety analyses of ACR are common, and the CANDU industry standard toolset of safety analysis codes can be applied to the analysis of the ACR. A systematic assessment of computer code applicability addressing the unique features of the ACR design was performed covering the important aspects of the computer code structure, models, constitutive correlations, and validation database. Arising from this assessment, limited additional requirements for code modifications and extensions to the validation databases have been identified. This paper provides an outline of the AECL software quality assurance program process for the validation of computer codes used to perform physics and thermal-hydraulics safety analyses of the ACR. It describes the additional validation work that has been identified for these codes and the planned, and ongoing, experimental programs to extend the code validation as required to address specific ACR design features that have impact on the physics and thermalhydraulics codes.