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Life Cycle Assessment and Cumulative Energy Demand Analyses of a Photovoltaic/Thermal System with MWCNT/Water and GNP/Water Nanofluids [PDF]
Processes, 2023 The global climate crisis has led society toward cleaner energy sources. Another reason is the limited reserves of fossil energy resources. Efforts to increase the efficiency of photovoltaic modules (PVs) have gained momentum. The high temperature is the
Gülşah Karaca Dolgun +2 more
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Cumulative Energy Demand of Hydrogen Energy Systems
2018Hydrogen energy systems are expected to play a significant role in achieving a sustainable energy sector. This requires that sustainable hydrogen options are actually available and implemented. In order to check the suitability of hydrogen under sustainability aspects, the life cycle assessment methodology is often used.
Antonio Valente +2 more
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Cumulative energy demand for small molecule and polymer photovoltaics
Progress in Photovoltaics: Research and Applications, 2012ABSTRACTOrganic photovoltaics (OPVs) are expected to be a low cost, environmentally friendly energy solution with advantageous properties such as flexibility and light weight that enable their use in new applications. Considerable progress in power conversion efficiencies has brought OPV technology closer to commercialization.
Annick Anctil +3 more
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Cumulative energy demand and cumulative emissions of photovoltaics production in Europe
Energy, 2004Studies of popular renewable energy systems show that cumulative energy demand (CED) can be understood as a kind of simplifying life cycle assessment [1] where the accounting of energy and material inputs is seen as part of an inventory analyses and the calculation of CED as a rough form of impact assessment. Within this research project, three grid-
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Evaluating the Cumulative Energy Demand of Additive Manufacturing Using Direct Energy Deposition
2020Additive manufacturing [AM] is often claimed as an environmentally friendly technology that also offers great potential for the industry. However, material and energy efficiency depend on a large number of influencing factors. Recent studies have focused on the quantitative evaluation of the environmental impact and energy demand of AM processes as ...
S. Ehmsen, L. Yi, J. C. Aurich
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A method to calculate the cumulative energy demand (CED) of lignite extraction
The International Journal of Life Cycle Assessment, 2000For the utilisation of an energy carrier such as lignite, the whole life cycle including necessary energy supply processes have to be considered. Therefore using the ‘Cumulative Energy Demand’ (CED) is especially suited to determine and compare the energy intensity of processes.
Michael Röhrlich +9 more
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Energy yield ratio and cumulative energy demand for wind energy converters
Energy, 2004The cumulative energy demand and the energy yield ratio can be seen as an indicator of environmental impacts to estimate the depletion of energy resources considering a whole lifecycle. For two wind energy converters (1.5 and 0.5 MW) these figures have been calculated. For calculating energy yield ratio, the yearly energy output of three sites has been
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A comparative analysis of the cumulative energy demand of stationary grid-integrated battery systems
2013 International Conference on Clean Electrical Power (ICCEP), 2013Electro-chemical storage systems can be used in the electricity grid to store energy when demand is low and feed it back during demand peaks. The so-called load leveling might reduce the overall fossil fuel demand, but the production efforts for the batteries must be taken into account in a holistic approach.
Zimmermann, B. +4 more
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2021
Analysis of energy consumption provides useful information for planners and policymakers to improve the efficiency of energy consumption. Given the energy crisis which caused by the consumption of non-renewable resources in agriculture sector, a lot of attempts have been made to reduce the energy consumption of inputs as much as possible.
Zalaghi, Ali Hosein +3 more
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Analysis of energy consumption provides useful information for planners and policymakers to improve the efficiency of energy consumption. Given the energy crisis which caused by the consumption of non-renewable resources in agriculture sector, a lot of attempts have been made to reduce the energy consumption of inputs as much as possible.
Zalaghi, Ali Hosein +3 more
openaire +1 more source