Results 201 to 210 of about 422,118 (270)
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Description of aquatic ecosystem's development by eco-exergy and exergy destruction
Ecological Modelling, 2007Abstract The respiration rate (energy used for maintenance as g detritus equivalents/m2 y, and the stored eco-exergy as g detritus equivalents/m2 have been found for 26 different aquatic ecosystems. It was shown that the respiration rate has a maximum value for a given type of aquatic ecosystem: 30 g detritus equivalents/m2 y for coral reef, about 12
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Exergy destruction minimization of an irreversible Carnot refrigeration cycle
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2007In this paper, exergy destruction minimization has been carried out for an irreversible Carnot refrigeration cycle. The rates of destroyed exergy in various portion of this physical model are derived. The goal of exergy destruction minimization is to minimize the rate of total destroyed exergy of the system.
Y-F Su, C-K Chen
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Energy Conversion and Management, 2015
Abstract When complex energy systems are analyzed and when a large number of their components is observed, the destruction of exergy related to a single component is dependent on its own properties, but also on the characteristics of other components.
Goran D. Vučković +2 more
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Abstract When complex energy systems are analyzed and when a large number of their components is observed, the destruction of exergy related to a single component is dependent on its own properties, but also on the characteristics of other components.
Goran D. Vučković +2 more
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International Journal of Turbo & Jet-Engines, 2017
AbstractA conventional and advanced exergy analysis of a turbofan engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the engine components are split into endogenous/exogenous and avoidable/unavoidable parts. Also, the mutual interdependencies
Ozgur Balli
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AbstractA conventional and advanced exergy analysis of a turbofan engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the engine components are split into endogenous/exogenous and avoidable/unavoidable parts. Also, the mutual interdependencies
Ozgur Balli
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Mini two-shaft gas turbine exergy analysis with a proposal to decrease exergy destruction
2018In this case study, exergy analysis is applied to a mini two-shaft gas turbine which is located in Islamic Azad University Khomeini Shahr Branch`s Thermodynamics laboratory and a proposal presented to make exergy destruction less using a Heat Recovery Water Heater (HRWH).
Babadi Soultanzadeh, Milad +2 more
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Exergy destruction investigation of complex gas turbine components
i-manager’s Journal on Future Engineering and TechnologyIn Libya, simple gas turbine power plants are widely used for electrical power generation. However, this study examines complex configurations of the Brayton cycle, including the simple Brayton cycle, with intercooling, regeneration, and reheating, focusing on physical exergy destruction and its impact on specific fuel consumption and net power.
El-Sagier Faraj +1 more
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Entropy production and exergy destruction: Part II—illustrative technologies
International Journal of Hydrogen Energy, 2003Abstract In a previous companion article, we pointed out that inter-technology synergies will become a generic feature of coming hydrogen age systems. These synergies will develop between sources, currencies and technologies. Unfortunately, today's optimization methodologies, based on energy rather than exergy optics, are often a misleading basis for
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A conceptual view of exergy destruction in mergers and acquisitions
Technological Forecasting and Social Change, 2019Abstract Company mergers are complex where several firm-specific and contextual factors interact with each other impacting the outcome of the process. Although many firms merge with or acquire others to increase the value of their firms, have more market power and gain more ability to negotiate with suppliers or customers, most of mergers and ...
Gökçen Arkalı Olcay +2 more
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Environmental Impact Index Using Exergy Destruction Within an Ecosystem: Methodology
Volume 6: Emerging Technologies: Alternative Energy Systems; Energy Systems: Analysis, Thermodynamics and Sustainability, 2009Theoretical bases of the use of the irreversibilities concept in an ecosystem as an environment impact index are presented in this paper. Because an ecosystem is composed by different biotics and abiotics parts, each part has a specific function in the processes to transport energy inside the ecosystem, all these processes having a large dependence ...
Sosimo E. Diaz-Mendez +3 more
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