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North American Natural Gas Supply Forecast: The Hubbert Method Including the Effects of Institutions
Reynolds, Douglas B.; Kolodziej, Marek - In: Energies 2 (2009) 2, pp. 269-306
natural gas supply is the Hubbert curve. Not all regions of the world are producing oil or natural gas following a Hubbert …
Persistent link: https://www.econbiz.de/10010676002
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Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback
Arthurson, Veronica - In: Energies 2 (2009) 2, pp. 226-242
Anaerobic digestion is an optimal way to treat organic waste matter, resulting in biogas and residue. Utilization of the residue as a crop fertilizer should enhance crop yield and soil fertility, promoting closure of the global energy and nutrient cycles. Consequently, the requirement for...
Persistent link: https://www.econbiz.de/10010668092
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Biofuel Impacts on World Food Supply: Use of Fossil Fuel, Land and Water Resources
Pimentel, David; Marklein, Alison; Toth, Megan A.; … - In: Energies 1 (2008) 2, pp. 41-78
The rapidly growing world population and rising consumption of biofuels are increasing demand for both food and … nutritional and ethical concerns. Nearly 60% of humans in the world are currently malnourished, so the need for grains and other …
Persistent link: https://www.econbiz.de/10010668130
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Energy Inputs in Food Crop Production in Developing and Developed Nations
Pimentel, David - In: Energies 2 (2009) 1, pp. 1-24
Detailed energy outputs and inputs were assessed for the following crops, cultured in the U.S. and developing countries: corn, wheat, rice, soy, potato, cassava, tomato, citrus and apple. In addition, the labor input for each crop was analyzed.
Persistent link: https://www.econbiz.de/10010668139
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Opportunities for a Bio-based Economy in the Netherlands
Sanders, Johan; Hoeven, Diederik Van der - In: Energies 1 (2008) 3, pp. 105-119
The shift to a bio-based economy for the Netherlands is not only required because of climate change, but also for industrial strategy reasons. Traditional strongholds of the Dutch economy like the Rotterdam harbour, the agricultural sector (including the greenhouse sector, and food and feed...
Persistent link: https://www.econbiz.de/10010675995
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Energy Analysis of the Danish Food Production System: Food-EROI and Fossil Fuel Dependency
Markussen, Mads V.; Østergård, Hanne - In: Energies 6 (2013) 8, pp. 4170-4186
Modern food production depends on limited natural resources for providing energy and fertilisers. We assess the fossil fuel dependency for the Danish food production system by means of Food Energy Returned on fossil Energy Invested (Food-EROI) and by the use of energy intensive nutrients from...
Persistent link: https://www.econbiz.de/10011030730
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Diesel Consumption of Agriculture in China
Li, Nan; Mu, Hailin; Li, Huanan; Gui, Shusen - In: Energies 5 (2012) 12, pp. 5126-5149
As agricultural mechanization accelerates the development of agriculture in China, to control the growth of the … resulting energy consumption of mechanized agriculture without negatively affecting economic development has become a major … total diesel consumption in agriculture in 2010. Technological progress has led to a decrease in the unit diesel consumption …
Persistent link: https://www.econbiz.de/10011031059
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Circuit Simulation for Solar Power Maximum Power Point Tracking with Different Buck-Boost Converter Topologies
Shiau, Jaw-Kuen; Lee, Min-Yi; Wei, Yu-Chen; Chen, Bo-Chih - In: Energies 7 (2014) 8, pp. 5027-5046
The power converter is one of the essential elements for effective use of renewable power sources. This paper focuses on the development of a circuit simulation model for maximum power point tracking (MPPT) evaluation of solar power that involves using different buck-boost power converter...
Persistent link: https://www.econbiz.de/10010884951
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Geophysical Methods for Monitoring Temperature Changes in Shallow Low Enthalpy Geothermal Systems
Hermans, Thomas; Nguyen, Frédéric; Robert, Tanguy; … - In: Energies 7 (2014) 8, pp. 5083-5118
Low enthalpy geothermal systems exploited with ground source heat pumps or groundwater heat pumps present many advantages within the context of sustainable energy use. Designing, monitoring and controlling such systems requires the measurement of spatially distributed temperature fields and the...
Persistent link: https://www.econbiz.de/10010885348
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Shadow Replication: An Energy-Aware, Fault-Tolerant Computational Model for Green Cloud Computing
Cui, Xiaolong; Mills, Bryan; Znati, Taieb; Melhem, Rami - In: Energies 7 (2014) 8, pp. 5151-5176
As the demand for cloud computing continues to increase, cloud service providers face the daunting challenge to meet the negotiated SLA agreement, in terms of reliability and timely performance, while achieving cost-effectiveness. This challenge is increasingly compounded by the increasing...
Persistent link: https://www.econbiz.de/10010886252