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Naturally-Forced Slug Flow Expander for Application in a Waste-Heat Recovery Cycle
Witt, Ben de; Hugo, Ron - In: Energies 7 (2014) 11, pp. 7223-7244
This paper investigates a slug-flow expander (SFE) for conversion of high-pressure gas/vapor into kinetic energy of … flow rate. A total of 13 expander configurations are investigated and geometries with the shortest cavity length and the … multiphase nature of the slug-flow expander, application to systems involving expansion of wetting fluids (water as part of a …
Persistent link: https://www.econbiz.de/10010960242
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Modeling and Control of a Parallel Waste Heat Recovery System for Euro-VI Heavy-Duty Diesel Engines
Feru, Emanuel; Willems, Frank; Jager, Bram de; … - In: Energies 7 (2014) 10, pp. 6571-6592
considered waste heat recovery system consists of two parallel evaporators with expander and pumps mechanically coupled to the … to be maintained before the expander under highly dynamic engine disturbances. To achieve this, a switching model …
Persistent link: https://www.econbiz.de/10010945709
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Reciprocating Expander for an Exhaust Heat Recovery Rankine Cycle for a Passenger Car Application
Glavatskaya, Yulia; Podevin, Pierre; Lemort, Vincent; … - In: Energies 5 (2012) 6, pp. 1751-1765
integrate a heat recovery system based on a steam Rankine cycle. The key component in such a system is the expander, which has a … strong impact on the system’s performance. A survey of different expander technologies leads us to select the reciprocating … expander as the most promising one for an automotive application. This paper therefore proposes a steady-state semi …
Persistent link: https://www.econbiz.de/10011031014
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Comparison and Impact of Waste Heat Recovery Technologies on Passenger Car Fuel Consumption in a Normalized Driving Cycle
Legros, Arnaud; Guillaume, Ludovic; Diny, Mouad; … - In: Energies 7 (2014) 8, pp. 5273-5290
The purpose of this article was to compare different waste heat recovery system technologies designed for automotive applications. A complete literature review is done and results in two comparative graphs. In the second part, simulation models are built and calibrated in order to assess the...
Persistent link: https://www.econbiz.de/10011031135
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Thermodynamic Analysis of a Ship Power Plant Operating with Waste Heat Recovery through Combined Heat and Power Production
Grljušić, Mirko; Medica, Vladimir; Račić, Nikola - In: Energies 7 (2014) 11, pp. 7368-7394
The goal of this research is to study a cogeneration plant for combined heat & power (CHP) production that utilises the low-temperature waste energy in the power plant of a Suezmax-size oil tanker for all heating and electricity requirements during navigation. After considering various...
Persistent link: https://www.econbiz.de/10011031138
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A Co-Powered Biomass and Concentrated Solar Power Rankine Cycle Concept for Small Size Combined Heat and Power Generation
Borello, Domenico; Corsini, Alessandro; Rispoli, Franco; … - In: Energies 6 (2013) 3, pp. 1478-1496
The present work investigates the matching of an advanced small scale Combined Heat and Power (CHP) Rankine cycle plant with end-user thermal and electric load. The power plant consists of a concentrated solar power field co-powered by a biomass furnace to produce steam in a Rankine cycle, with...
Persistent link: https://www.econbiz.de/10011031439
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Circuit Simulation for Solar Power Maximum Power Point Tracking with Different Buck-Boost Converter Topologies
Shiau, Jaw-Kuen; Lee, Min-Yi; Wei, Yu-Chen; Chen, Bo-Chih - In: Energies 7 (2014) 8, pp. 5027-5046
The power converter is one of the essential elements for effective use of renewable power sources. This paper focuses on the development of a circuit simulation model for maximum power point tracking (MPPT) evaluation of solar power that involves using different buck-boost power converter...
Persistent link: https://www.econbiz.de/10010884951
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Geophysical Methods for Monitoring Temperature Changes in Shallow Low Enthalpy Geothermal Systems
Hermans, Thomas; Nguyen, Frédéric; Robert, Tanguy; … - In: Energies 7 (2014) 8, pp. 5083-5118
Low enthalpy geothermal systems exploited with ground source heat pumps or groundwater heat pumps present many advantages within the context of sustainable energy use. Designing, monitoring and controlling such systems requires the measurement of spatially distributed temperature fields and the...
Persistent link: https://www.econbiz.de/10010885348
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Shadow Replication: An Energy-Aware, Fault-Tolerant Computational Model for Green Cloud Computing
Cui, Xiaolong; Mills, Bryan; Znati, Taieb; Melhem, Rami - In: Energies 7 (2014) 8, pp. 5151-5176
As the demand for cloud computing continues to increase, cloud service providers face the daunting challenge to meet the negotiated SLA agreement, in terms of reliability and timely performance, while achieving cost-effectiveness. This challenge is increasingly compounded by the increasing...
Persistent link: https://www.econbiz.de/10010886252
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Comparison Between Wind Power Prediction Models Based on Wavelet Decomposition with Least-Squares Support Vector Machine (LS-SVM) and Artificial Neural Network (ANN)
Giorgi, Maria Grazia De; Campilongo, Stefano; … - In: Energies 7 (2014) 8, pp. 5251-5272
A high penetration of wind energy into the electricity market requires a parallel development of efficient wind power forecasting models. Different hybrid forecasting methods were applied to wind power prediction, using historical data and numerical weather predictions (NWP). A comparative study...
Persistent link: https://www.econbiz.de/10010886253