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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

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

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

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

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

Multi-Period Optimization Model for Electricity Generation Planning Considering Plug-in Hybrid Electric Vehicle Penetration

Ahmadi, Lena; Elkamel, Ali; Abdul-Wahab, Sabah A.; Pan, … - In: Energies 8 (2015) 5, pp. 3978-4002

, optimization results indicate that by not utilizing coal power stations the CO<sub>2</sub> emissions are the lowest: ~500 tonnes …

Persistent link: https://www.econbiz.de/10011274570

Multi-Objective Thermo-Economic Optimization Strategy for ORCs Applied to Subcritical and Transcritical Cycles for Waste Heat Recovery

Lecompte, Steven; Lemmens, Sanne; Huisseune, Henk; … - In: Energies 8 (2015) 4, pp. 2714-2741

commercial implementations exist, there is still considerable potential for thermo-economic optimization. As such, a novel … framework for designing optimized ORC systems is proposed based on a multi-objective optimization scheme in combination with … compared using the suggested optimization strategy. …

Persistent link: https://www.econbiz.de/10011249489

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

Expanding Horizons with Chameleon: Team Missouri’s Innovative Home Automation System

Glass, Bryan; Brannon, Ben; Grantham, Katie; Baur, Stuart - In: Energies 3 (2010) 6, pp. 1142-1153

Team Missouri’s 2009 Solar Decathlon entry featured a revolutionary home automation system, Chameleon, promoting both convenience and energy savings. This was accomplished using the typical controls of a convenience based automation system, while maintaining user set points, such as a home’s...

Persistent link: https://www.econbiz.de/10010675992

Performance Analysis and Optimization of a Solar Powered Stirling Engine with Heat Transfer Considerations

Chen, Chieh-Li; Ho, Chia-En; Yau, Her-Terng - In: Energies 5 (2012) 9, pp. 3573-3585

This paper investigates the optimization of the performance of a solar powered Stirling engine based on finite … collector temperature and the engine thermal efficiency as the optimization parameters. The maximum output power of engine and …

Persistent link: https://www.econbiz.de/10010676030