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Leander Hake, Stephan Sundermeier and Stefan aus der Wiesche
The results of profile loss measurements, including trailing edge flow details, are presented for the flow of an organic vapor through a linear turbine cascade. The so-called VKI-I blade profile from the open literature was chosen for the cascade, and th...
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Yongning He, Huihong Wu, Yeqiang Zhang, Tingxiang Jin and Ziwen Xing
An organic Rankine cycle (ORC) system is an efficient technology for generating power from low-grade thermal sources. Twin screw expanders are widely used in ORC systems. Pressure loss caused by a suction port influences the suction process and the syste...
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ChunWee Ng, Ivan C. K. Tam and Dawei Wu
Recent regulatory developments in the global maritime industry have signalled an increased emphasis on the improvement of energy efficiency onboard ships. Among the various efficiency enhancement options, recovering waste heat using the organic Rankine c...
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Ratha Z. Mathkor, Brian Agnew, Mohammed A. Al-Weshahi and Fathi Latrsh
This paper reports on a study of the modelling, validation and analysis of an integrated 1 MW (electrical output) tri-generation system energized by solar energy. The impact of local climatic conditions in the Mediterranean region on the system performan...
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Florian Heberle and Dieter Brüggemann
We present a thermo-economic evaluation of binary power plants based on the Organic Rankine Cycle (ORC) for geothermal power generation. The focus of this study is to analyse if an efficiency increase by using zeotropic mixtures as working fluid overcomp...
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Leonardo Pierobon, Tuong-Van Nguyen, Andrea Mazzucco, Ulrik Larsen and Fredrik Haglind
Over the last years, much attention has been paid to the development of efficient and low-cost power systems for biomass-to-electricity conversion. This paper aims at investigating the design- and part-load performance of an innovative plant based on a w...
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Wahiba Yaïci, Evgueniy Entchev, Pouyan Talebizadehsardari and Michela Longo
Globally there are several viable sources of renewable, low-temperature heat (below 130 °C), particularly solar energy, geothermal energy, and energy generated from industrial wastes. Increased exploitation of these low-temperature options has the defini...
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This paper presents the optimization of parallel distribution between electricity and heat production for a geothermal plant. The geothermal fluid is split into two streams, one used for an Organic Rankine Cycle (ORC) system, and the other for a District...
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Danchen Wei, Cheng Liu and Zhongfeng Geng
The organic rankine cycle (ORC) has been widely used to convert low-grade thermal energy to electricity. The selection of the cycle configuration, working fluid, and operating parameters is crucial for the economic profitability of the ORC system. In the...
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Gaosheng Li, Hongguang Zhang, Fubin Yang, Songsong Song, Ying Chang, Fei Yu, Jingfu Wang and Baofeng Yao
A novel free piston expander-linear generator (FPE-LG) integrated unit was proposed to recover waste heat efficiently from vehicle engine. This integrated unit can be used in a small-scale Organic Rankine Cycle (ORC) system and can directly convert the t...
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Alessandro Cappiello and Raffaele Tuccillo
The design of organic Rankine cycle (ORC) turbines often requires dealing with transonic flows due to the cycle efficiency requirements and the matching of the temperature profiles with heat sources and sinks, as well as the nature of organic fluids, oft...
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Evangelos Bellos, Ioannis Sarakatsanis and Christos Tzivanidis
The objective of the present work is the study of different thermal storage systems for a solar-fed organic Rankine cycle (ORC) system that operates with parabolic trough collectors. The conventional design with sensible thermal oil storage is compared w...
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Ali Al Dabbas, Laith Al-Hyari, Ahmad D. M. Al Awana, Mohammad Fawaier
Pág. 180 - 188
This research investigates and evaluates the University Politehnica of Bucharest (UPB) possibilities to become an energy self-supplying by building up its own power plant and becoming an energy distributor. The campus has already been connected to the na...
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Melchiorre Casisi, Piero Pinamonti and Mauro Reini
The study examines the option of adding a bottom Organic Rankine Cycle (ORC) for energy recovery from an internal combustion engine (ICE) for ship propulsion. In fact, energy recovery from the exhaust gas normally rejected to the atmosphere and eventuall...
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This work explores the possibility to adopt in organic Rankine cycle (ORC) plants mixtures of water (acting as solvent) plus an organic compound (acting as solute) as the working fluid. Initially an evaluation of the thermodynamic properties of the mixtu...
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Alessia Arteconi, Luca Del Zotto, Roberto Tascioni, Khamid Mahkamov, Chris Underwood, Luisa F. Cabeza, Jose Miguel Maldonado, Roberto Manca, André C. Mintsa, Carlo M. Bartolini, Toni Gimbernat, Teresa Botargues, Elvedin Halimic and Luca Cioccolanti
In this paper, the smart management of buildings energy use by means of an innovative renewable micro-cogeneration system is investigated. The system consists of a concentrated linear Fresnel reflectors solar field coupled with a phase change material th...
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Alessia Arteconi, Luca Del Zotto, Roberto Tascioni, Khamid Mahkamov, Chris Underwood, Luisa F. Cabeza, Jose Miguel Maldonado, Roberto Manca, André C. Mintsa, Carlo M. Bartolini, Toni Gimbernat, Teresa Botargues, Elvedin Halimic and Luca Cioccolanti
In this paper, the smart management of buildings energy use by means of an innovative renewable micro-cogeneration system is investigated. The system consists of a concentrated linear Fresnel reflectors solar field coupled with a phase change material th...
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Alessia Arteconi, Luca Del Zotto, Roberto Tascioni, Khamid Mahkamov, Chris Underwood, Luisa F. Cabeza, Jose Miguel Maldonado, Roberto Manca, André C. Mintsa, Carlo M. Bartolini, Toni Gimbernat, Teresa Botargues, Elvedin Halimic and Luca Cioccolanti
In this paper, the smart management of buildings energy use by means of an innovative renewable micro-cogeneration system is investigated. The system consists of a concentrated linear Fresnel reflectors solar field coupled with a phase change material th...
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Ibrahim Gad-el-Hak, Ahmed E. Hussin, Ashraf M. Hamed and Nabil A. Mahmoud
The present paper provides a numerical study that leads to the proper selection of a working fluid for use in low-temperature organic Rankine cycle (ORC) applications. This selection is not only based on the provision of best efficiency but also to compl...
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Sung-Wei Hsu, Hsiao-Wei D. Chiang and Chih-Wei Yen
In this study, the authors experimentally investigate the performance of the organic Rankine cycle (ORC) and screw expander under the influence of supply pressure and pressure ratio over the expander. Three tests were performed with expander pressure ra...
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