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Exergy and Exergoeconomic Model of a Ground-Based CAES Plant for Peak-Load Energy Production

Buffa, Francesco; Kemble, Simon; Manfrida, Giampaolo; … - In: Energies 6 (2013) 2, pp. 1050-1067

Compressed Air Energy Storage is recognized as a promising technology for applying energy storage to grids which are more and more challenged by the increasing contribution of renewable such as solar or wind energy. The paper proposes a medium-size ground-based CAES system, based on pressurized...

Persistent link: https://www.econbiz.de/10011031418

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

Calise, Francesco; d'Accadia, Massimo Dentice; … - In: Energies 8 (2015) 2, pp. 995-1024

During the last years, special attention has been paid to renewable polygeneration technologies, able of simultaneously producing thermal, cooling, electrical energy and desalinated water from seawater. This paper focuses on an innovative polygeneration system driven by renewable energy sources,...

Persistent link: https://www.econbiz.de/10011147127

Optimization of Steam Pressure Levels in a Total Site Using a Thermoeconomic Method

Shamsi, Shahin; Omidkhah, Mohammad R. - In: Energies 5 (2012) 3, pp. 702-717

The present study aims to develop a thermoeconomic-based approach for optimization of steam levels in a steam … minimize the cost caused by exergy destruction. In the field of total site optimization, incremental cost of the utility system …. The analysis showed that thermoeconomic (exergoeconomic) approach in optimization not only can change the optimum …

Persistent link: https://www.econbiz.de/10010668094

Advanced Energy Harvesting from Macroalgae—Innovative Integration of Drying, Gasification and Combined Cycle

Aziz, Muhammad; Oda, Takuya; Kashiwagi, Takao - In: Energies 7 (2014) 12, pp. 8217-8235

State-of-the-art integrated macroalgae utilization processes, consisting of drying, gasification, and combined cycle, are proposed and their performance with respect to energy efficiency are evaluated. To achieve high exergy efficiency, the integration is performed through two main principles:...

Persistent link: https://www.econbiz.de/10011096853

Numerical Model of a Variable-Combined-Cycle Engine for Dual Subsonic and Supersonic Cruise

Fernandez-Villace, Victor; Paniagua, Guillermo - In: Energies 6 (2013) 2, pp. 839-870

Efficient high speed propulsion requires exploiting the cooling capability of the cryogenic fuel in the propulsion cycle. This paper presents the numerical model of a combined cycle engine while in air turbo-rocket configuration. Specific models of the various heat exchanger modules and the...

Persistent link: https://www.econbiz.de/10010668069

Design, Optimization and Energetic Efficiency of Producing Hydrogen-Rich Gas from Biomass Steam Gasification

Kuo, Po-Chih; Wu, Wei - In: Energies 8 (2014) 1, pp. 94-110

BSG process, the system energetic efficiency (SEE) is significantly improved. Finally, an optimization algorithm with …

Persistent link: https://www.econbiz.de/10011105438

A Novel Hybrid-Flux Magnetic Gear and Its Performance Analysis Using the 3-D Finite Element Method

Chen, Yiduan; Fu, Weinong - In: Energies 8 (2015) 5, pp. 3313-3327

accelerate the optimization process of the proposed machine. …

Persistent link: https://www.econbiz.de/10011265959

Metaheuristic Algorithms Applied to Bioenergy Supply Chain Problems: Theory, Review, Challenges, and Future

Castillo-Villar, Krystel K. - In: Energies 7 (2014) 11, pp. 7640-7672

energy density) to produce bioenergy. To overcome this challenge, large-scale optimization models are needed to be solved to … enable decision makers to plan, design, and manage bioenergy supply chains. Therefore, the use of effective optimization … include: (1) population approaches, such as ant colony optimization (ACO), the genetic algorithm (GA), particle swarm …

Persistent link: https://www.econbiz.de/10011075176

Parametric Investigation of Optimum Thermal Insulation Thickness for External Walls

Kaynakli, Omer - In: Energies 4 (2011) 6, pp. 913-927

Numerous studies have estimated the optimum thickness of thermal insulation materials used in building walls for different climate conditions. The economic parameters (inflation rate, discount rate, lifetime and energy costs), the heating/cooling loads of the building, the wall structure and the...

Persistent link: https://www.econbiz.de/10011030750

A Power Load Distribution Algorithm to Optimize Data Center Electrical Flow

Ferreira, João; Callou, Gustavo; Maciel, Paulo - In: Energies 6 (2013) 7, pp. 3422-3443

Energy consumption is a matter of common concern in the world today. Research demonstrates that as a consequence of the constantly evolving and expanding field of information technology, data centers are now major consumers of electrical energy. Such high electrical energy consumption emphasizes...

Persistent link: https://www.econbiz.de/10011030857