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Effect of dry hydrocarbons and critical point temperature on the efficiencies of organic Rankine cycle

Aljundi, Isam H. - In: Renewable Energy 36 (2011) 4, pp. 1196-1202

Higher efficiencies and optimal utilization of geothermal energy require a careful selection of the working fluid in organic Rankine cycles (ORC). The objectives of this study are to analyze and explain the effect of using alternative dry fluids on the efficiencies of the ORC and compare them...

Persistent link: https://www.econbiz.de/10010805260

Wind forecasts for wind power generation using the Eta model

Lazić, Lazar; Pejanović, Goran; Živković, Momčilo - In: Renewable Energy 35 (2010) 6, pp. 1236-1243

The goal of this article is to apply the regional atmospheric numerical weather prediction Eta model and describe its performance in validation of the wind forecasts for wind power plants. Wind power generation depends on wind speed. Wind speed is converted into power through characteristic...

Persistent link: https://www.econbiz.de/10011044808

Sources and mitigation of methane emissions by sectors: A critical review

Karakurt, Izzet; Aydin, Gokhan; Aydiner, Kerim - In: Renewable Energy 39 (2012) 1, pp. 40-48

trends in emissions, the sources and mitigation strategies of the methane. As a result of the study, it is determined that … the agricultural sector is the biggest source of methane emissions among the sectors. The energy, waste and industry …The environmental community rightly recognizes global warming as one of the gravest threats to the planet. Methane (CH4 …

Persistent link: https://www.econbiz.de/10010806895

Estimation of methane and nitrous oxide emissions from paddy fields in Taiwan

Yang, Shang-Shyng; Lai, Chao-Ming; Chang, Hsiu-Lan; … - In: Renewable Energy 34 (2009) 8, pp. 1916-1922

To investigate the greenhouse gases emissions from paddy fields, methane and nitrous oxide emissions were estimated … with the local measurement and the IPCC method during 1990–2006 in Taiwan. Annual methane emission ranged from 9001 to 14 …,710–211,968ha in the second crop season with the local measurement for intermittent irrigation. The value ranged from 31,122 to 55 …

Persistent link: https://www.econbiz.de/10010807206

Renewable methane from anaerobic digestion of biomass

Chynoweth, David P; Owens, John M; Legrand, Robert - In: Renewable Energy 22 (2001) 1, pp. 1-8

Production of methane via anaerobic digestion of energy crops and organic wastes would benefit society by providing a … carbon dioxide and other emissions through emission regulations, carbon taxes, and subsidies of biomass energy would make it … cost competitive. Methane derived from anaerobic digestion is competitive in efficiencies and costs to other biomass energy …

Persistent link: https://www.econbiz.de/10010804071

Accelerated biogas production without leachate recycle

Martin, Duncan J - In: Renewable Energy 24 (2001) 3, pp. 535-538

The economics of biogas production remain marginal, even on ‘free’ substrates such as wastes. However, new insights into the fundamental processes of solid-state digestion promise a much faster and more predictable process. This holds the future prospect of profitable biogas production from...

Persistent link: https://www.econbiz.de/10010804508

Reduction of methane emissions and utilization of municipal waste for energy in Amman

Al-Dabbas, Moh'd A.F. - In: Renewable Energy 14 (1998) 1, pp. 427-434

The goal of the project is to reduce emissions of greenhouse gases in Jordan by substituting fossil fuels with … bioenergy methane gas and electricity produced from anaerobic digestion of industrial and municipal waste in Amman. Additional … greenhouse gas reduction will be achieved by reducing the uncontrolled release of methane from improperly disposed organic waste …

Persistent link: https://www.econbiz.de/10010804878

Comparison of the effectivities of two-phase and single-phase anaerobic sequencing batch reactors during dairy wastewater treatment

Göblös, Sz.; Portörő, P.; Bordás, D.; Kálmán, M.; … - In: Renewable Energy 33 (2008) 5, pp. 960-965

-fermented whey. Under the same high OLR conditions the methane yield was 0.122dm−3CH4g−1 CODdegraded for the anaerobic digesters fed …

Persistent link: https://www.econbiz.de/10011044142

Bio-methanization of energy crops through mono-digestion for continuous production of renewable biogas

Demirel, Burak; Scherer, Paul - In: Renewable Energy 34 (2009) 12, pp. 2940-2945

substrate, an energy crop, for continuous production of methane (CH4) as a source of renewable energy. The sugar beet silage was …

Persistent link: https://www.econbiz.de/10011044240

Enhancing biomethanation of municipal waste sludge with grease trap waste as a co-substrate

Zhu, Zhenwei; Hsueh, Michael K.; He, Qiang - In: Renewable Energy 36 (2011) 6, pp. 1802-1807

the high organic content of GTW at 138 gVS/L, which was 626% higher than that of MWS (19 gVS/L). The methane potential of … added as a co-substrate in addition to MWS, the high methane potential and organic content of GTW resulted in significant … improvement in methane production during the anaerobic co-digestion of MWS, e.g. a 65% increase at the GTW loading of 5.5 gVS …

Persistent link: https://www.econbiz.de/10011044250