• Title/Summary/Keyword: Emergy

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The Present-Day State and Outlooks of Using Plasma-Energy Technologies in Heat-and-Power Industry

  • Karpenko, E.I.;Messerle, V.E.
    • Transactions on Electrical and Electronic Materials
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    • v.2 no.2
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    • pp.1-4
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    • 2001
  • Urgency of using plasma-energy technologies in power industry, is outlined, increasing of economical efficiency, decreasing of energy consumption and decreasing of environmental pollution, are shown, scientific and technical bases for plasma-energy technologies of fuel utilisation, are designed, results of theoretical, experimental and rig investigations of processes of plasma ignition, gasification, thermochemical preparation for burning and combined processing of coals, are presented, results of realisation of plasma technologies of residual-oil-free (mazout) pulverised-coal boiler kindling, lighting of torch and stabilisation of luid slagging in furnaces with removal of fluid slag, are described.

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Emergy Evaluation of Typhoon Maemi in Busan (태풍 매미가 부산시에 미치는 영향에 대한 에머지 평가)

  • Park, KyungMin;Kim, Dong-Myung;Lee, Suk Mo
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.20 no.1
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    • pp.18-25
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    • 2017
  • Damage of both life and property has been increased by natural disaster under the influence of climate change, thus many natural disaster vulnerability researches have been carried out to make adaptation policy and impact assessment of climate change recently. Their method for assessing vulnerability usually have used proxy variables for making vulnerability indices. However, because their results were too qualitative and relative it tends to be hard to make absolute comparison and establish standard of prevention or adaptation ability. Accordingly, this study aimed at quantifying natural disaster vulnerability using emergy through recognizing disaster as the relations between order and disorder by system approach. As a result, ordering energy (4.66E+22 sej/yr) and ordered structure (1.98E+22 sej) of Busan in 2003 and disordering energy (7.80E+18 sej), disordered parts (4.55E+20 sej) and rebuilding energy (3.87E+20 sej) by typhoon Maemi were analysed. And then, this was compared with Hurricane Andrew in Dade County. Through this comparison, if the prevention ability of Busan increases, disordered parts can be reduced against the more powerful disordering energy. Also, prevention for additional damages by disaster is needed to practical rebuilding action. In conclusion, it was able to figure out the impact of disaster quantitatively by natural systems and urban systems showing as common measure. Based on this study and further research to make effective prevention for how much prevention ability should be increased will contribute to producing the scientific data for disaster management policy in future.