The Experts below are selected from a list of 90 Experts worldwide ranked by ideXlab platform
Angel G Fernandez - One of the best experts on this subject based on the ideXlab platform.
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corrosion properties of a ternary nitrate nitrite molten salt in concentrated solar Technology
Renewable Energy, 2015Co-Authors: Angel G Fernandez, M Cortes, Edward Fuentealba, F J PerezAbstract:The enhancements in the storage systems developed by solar thermal power plants have provided to renewable energy a considerable increase in efficiency. Thermal Energy Storage (TES) using HITEC mixture could be used as Heat Transfer Fluid (HTF) in concentrated solar Linear Technology. In this research, the corrosive effects of HITEC mixture composed by 40 wt% NaNO2 þ 7w t % NaNO3 þ 53 wt% KNO3 were assessed at 390 � C on a carbon steel (A516) and on low-Cr alloy steels (T11 and T22). The corrosion rates were determined by gravimetric tests, measuring the weight gain during 2000 h, identifying the corrosion products via scanning electron microscopy and X-ray diffraction. T22 steel shows a corrosion layer of 6.05 microns, with a protective layer formed in the inner zone to the material, identified through DRX as the K2CrO4 protective spinel. Fe2O3 and MgO were the others important products found on the tests performed at 390 � C, being observed also the formation of some stable compounds with the impurities of the salt, as carbonates. The use of the HITEC mixture in solar Technology would provide a less aggressive behaviour for materials in contact with it, providing an increase in operational life cycles in current solar Technology.
Malcolm Gilbert - One of the best experts on this subject based on the ideXlab platform.
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benefits of collaborative learning for environmental management applying the integrated systems for knowledge management approach to support animal pest control
Environmental Management, 2001Co-Authors: Will Allen, Ockie J H Bosch, Margaret Kilvington, John Oliver, Malcolm GilbertAbstract:Resource management issues continually change over time in response to coevolving social, economic, and ecological systems. Under these conditions adaptive management, or "learning by doing," offers an opportunity for more proactive and collaborative approaches to resolving environmental problems. In turn, this will require the implementation of learning-based extension approaches alongside more traditional Linear Technology transfer approaches within the area of environmental extension. In this paper the Integrated Systems for Knowledge Management (ISKM) approach is presented to illustrate how such learning-based approaches can be used to help communities develop, apply, and refine technical information within a larger context of shared understanding. To outline how this works in practice, we use a case study involving pest management. Particular attention is paid to the issues that emerge as a result of multiple stakeholder involvement within environmental problem situations. Finally, the potential role of the Internet in supporting and disseminating the experience gained through ongoing adaptive management processes is examined.
F J Perez - One of the best experts on this subject based on the ideXlab platform.
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corrosion properties of a ternary nitrate nitrite molten salt in concentrated solar Technology
Renewable Energy, 2015Co-Authors: Angel G Fernandez, M Cortes, Edward Fuentealba, F J PerezAbstract:The enhancements in the storage systems developed by solar thermal power plants have provided to renewable energy a considerable increase in efficiency. Thermal Energy Storage (TES) using HITEC mixture could be used as Heat Transfer Fluid (HTF) in concentrated solar Linear Technology. In this research, the corrosive effects of HITEC mixture composed by 40 wt% NaNO2 þ 7w t % NaNO3 þ 53 wt% KNO3 were assessed at 390 � C on a carbon steel (A516) and on low-Cr alloy steels (T11 and T22). The corrosion rates were determined by gravimetric tests, measuring the weight gain during 2000 h, identifying the corrosion products via scanning electron microscopy and X-ray diffraction. T22 steel shows a corrosion layer of 6.05 microns, with a protective layer formed in the inner zone to the material, identified through DRX as the K2CrO4 protective spinel. Fe2O3 and MgO were the others important products found on the tests performed at 390 � C, being observed also the formation of some stable compounds with the impurities of the salt, as carbonates. The use of the HITEC mixture in solar Technology would provide a less aggressive behaviour for materials in contact with it, providing an increase in operational life cycles in current solar Technology.
Edward Fuentealba - One of the best experts on this subject based on the ideXlab platform.
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corrosion properties of a ternary nitrate nitrite molten salt in concentrated solar Technology
Renewable Energy, 2015Co-Authors: Angel G Fernandez, M Cortes, Edward Fuentealba, F J PerezAbstract:The enhancements in the storage systems developed by solar thermal power plants have provided to renewable energy a considerable increase in efficiency. Thermal Energy Storage (TES) using HITEC mixture could be used as Heat Transfer Fluid (HTF) in concentrated solar Linear Technology. In this research, the corrosive effects of HITEC mixture composed by 40 wt% NaNO2 þ 7w t % NaNO3 þ 53 wt% KNO3 were assessed at 390 � C on a carbon steel (A516) and on low-Cr alloy steels (T11 and T22). The corrosion rates were determined by gravimetric tests, measuring the weight gain during 2000 h, identifying the corrosion products via scanning electron microscopy and X-ray diffraction. T22 steel shows a corrosion layer of 6.05 microns, with a protective layer formed in the inner zone to the material, identified through DRX as the K2CrO4 protective spinel. Fe2O3 and MgO were the others important products found on the tests performed at 390 � C, being observed also the formation of some stable compounds with the impurities of the salt, as carbonates. The use of the HITEC mixture in solar Technology would provide a less aggressive behaviour for materials in contact with it, providing an increase in operational life cycles in current solar Technology.
M Cortes - One of the best experts on this subject based on the ideXlab platform.
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corrosion properties of a ternary nitrate nitrite molten salt in concentrated solar Technology
Renewable Energy, 2015Co-Authors: Angel G Fernandez, M Cortes, Edward Fuentealba, F J PerezAbstract:The enhancements in the storage systems developed by solar thermal power plants have provided to renewable energy a considerable increase in efficiency. Thermal Energy Storage (TES) using HITEC mixture could be used as Heat Transfer Fluid (HTF) in concentrated solar Linear Technology. In this research, the corrosive effects of HITEC mixture composed by 40 wt% NaNO2 þ 7w t % NaNO3 þ 53 wt% KNO3 were assessed at 390 � C on a carbon steel (A516) and on low-Cr alloy steels (T11 and T22). The corrosion rates were determined by gravimetric tests, measuring the weight gain during 2000 h, identifying the corrosion products via scanning electron microscopy and X-ray diffraction. T22 steel shows a corrosion layer of 6.05 microns, with a protective layer formed in the inner zone to the material, identified through DRX as the K2CrO4 protective spinel. Fe2O3 and MgO were the others important products found on the tests performed at 390 � C, being observed also the formation of some stable compounds with the impurities of the salt, as carbonates. The use of the HITEC mixture in solar Technology would provide a less aggressive behaviour for materials in contact with it, providing an increase in operational life cycles in current solar Technology.