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The energy efficiency of oil sands extraction: Energy return ratios from 1970 to 2010
Energy, 2013Abstract It has been argued that the oil sands industry is not energy efficient: comparatively large energy inputs are required per unit of energy output from oil sands operations. Unfortunately, quantitative work to date in this area has suffered from poor data availability and uncertain methods. We apply a new methodology and new dataset to compute
Adam R. Brandt +2 more
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Model for optimizing energy efficiency through controlling speed and gear ratio
Energy Efficiency, 2008Specific fuel consumption of vehicles has been improved through technical changes in the last three decades. There has been little study of the impact of behavioral aspects on the specific fuel consumption of vehicles. Analytical tools developed recently have included options for quantifying the specific fuel consumption in certain predefined driving ...
Y. Saboohi, H. Farzaneh
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An Analysis of Energy Efficient Cluster Ratio for Hierarchical Wireless Sensor Networks
The Journal of Korean Institute of Communications and Information Sciences, 2013Clustering schemes have been adopted as an efficient solution to prolong network lifetime and improve network scalability. In such clustering schemes cluster ratio is represented by the rate of the number of cluster heads and the number of total nodes, and affects the performance of clustering schemes.
Zilong Jin, Dae-Young Kim, Jinsung Cho
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Improving seasonal energy efficiency ratio for biogas air conditioner
2011 International Conference on New Technology of Agricultural, 2011The biogas air conditioner is a new style air condition system which is composed of the biogas heat pump (BHP), the second heat exchanger and some auxiliary equipments such as fans, water pumps, etc. The mathematic model including the primary heat exchanger model, the second heat exchanger model, the water spraying chamber model, the mixed air model ...
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2009
In this paper, non parametric Data Envelopment Analysis (DEA) was subjected to the energy data of wheat producers in Punjab state, India, and technical, pure technical and scale efficiencies were calculated for farms both category wise and zone wise. The main objective was to determine the strength of the correlation between non-parametric efficiencies
NASSIRI, S. M., SINGH, S.
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In this paper, non parametric Data Envelopment Analysis (DEA) was subjected to the energy data of wheat producers in Punjab state, India, and technical, pure technical and scale efficiencies were calculated for farms both category wise and zone wise. The main objective was to determine the strength of the correlation between non-parametric efficiencies
NASSIRI, S. M., SINGH, S.
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Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021
The present research is about increasing the energy efficiency ratio (EER) in current direct evaporative coolers (DEC) in Iran. Increasing the cooling load and reducing the electrical energy consumption simultaneously (increasing the energy efficiency ratio (EER)) in DEC are the main goals of manufacturers and consumers of this device.
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The present research is about increasing the energy efficiency ratio (EER) in current direct evaporative coolers (DEC) in Iran. Increasing the cooling load and reducing the electrical energy consumption simultaneously (increasing the energy efficiency ratio (EER)) in DEC are the main goals of manufacturers and consumers of this device.
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The Energy Journal, 2004
Many forecasts for energy use and carbon emissions assume that energy intensity will decline over time for reasons unrelated to energy prices, which are termed autonomous energy efficiency increases (AEEI). A cointegration analysis of a vector error correction model indicates that the types of fuels consumed, personal consumption expenditures spent on ...
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Many forecasts for energy use and carbon emissions assume that energy intensity will decline over time for reasons unrelated to energy prices, which are termed autonomous energy efficiency increases (AEEI). A cointegration analysis of a vector error correction model indicates that the types of fuels consumed, personal consumption expenditures spent on ...
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Signal to noise ratio based clustering approach for energy efficient WSN
2017 2nd International Conference on Computing and Communications Technologies (ICCCT), 2017Wireless sensor network consists of independent device spatially distributed in the wireless network with sensor that observes the environment conditions. The cluster based transaction is the gateway of wireless medium and distributed nodes has limitations in power supply.
null Susila Sakthy S +3 more
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An Efficient Real-time Voice Activity Detection Algorithm using Teager Energy to Energy Ratio
2019 27th Iranian Conference on Electrical Engineering (ICEE), 2019We define a new feature called Teager Energy to Energy and mathematically show that it provides distinguished values for pure tone and white noise signals. We then employ the Teager Energy to Energy feature to propose an efficient procedure for voice activity detection and use simulation results to evaluate its performance in different noisy ...
Mohammad Hadi +2 more
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Bioresource Technology, 2012
The effect of ratio between autoflocculating and target microalgae in bio-flocculation was studied with emphasis on the recovery, sedimentation rate and energy demand for harvesting the target microalgae. When the autoflocculating microalgae Ettlia texensis, Ankistrodesmus falcatus and Scenedesmus obliquus were added to Chlorella vulgaris at a ratio of
Salim, S., Vermuë, M.H., Wijffels, R.H.
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The effect of ratio between autoflocculating and target microalgae in bio-flocculation was studied with emphasis on the recovery, sedimentation rate and energy demand for harvesting the target microalgae. When the autoflocculating microalgae Ettlia texensis, Ankistrodesmus falcatus and Scenedesmus obliquus were added to Chlorella vulgaris at a ratio of
Salim, S., Vermuë, M.H., Wijffels, R.H.
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