Search Results - subject:"ORC"

Thermodynamic analysis and performance optimization of an ORC (Organic Rankine Cycle) system for multi-strand waste heat sources in petroleum refining industry

Song, Jian; Li, Yan; Gu, Chun-wei; Zhang, Li - In: Energy 71 (2014) C, pp. 673-680

recovered. The ORC (Organic Rankine Cycle) system has been proved to be a promising solution for the utilization of low … utilized one by one through several independent ORC subsystems. This paper aims to design and optimize a comprehensive ORC …

Persistent link: https://www.econbiz.de/10010808980

ESCO business models for biomass heating and CHP: Profitability of ESCO operations in Italy and key factors assessment

Pantaleo, Antonio; Candelise, Chiara; Bauen, Ausilio; … - In: Renewable and Sustainable Energy Reviews 30 (2014) C, pp. 237-253

coupling an organic Rankine cycle (ORC) for CHP is explored. The relevance of the research relies on the assessment of the main …

Persistent link: https://www.econbiz.de/10010729900

Systematic optimization of subcritical and transcritical organic Rankine cycles (ORCs) constrained by technical parameters in multiple applications

Maraver, Daniel; Royo, Javier; Lemort, Vincent; … - In: Applied Energy 117 (2014) C, pp. 11-29

feed pump) was also carried out. An optimization model of the ORC (available as an electronic annex) is proposed to predict … fluids. The working fluids considered are those most commonly used in commercial ORC units (R134a, R245fa, Solkatherm, n … both approaches is more adequate to obtain some preliminary design guidelines for ORC units. …

Persistent link: https://www.econbiz.de/10010737726

Analysis of optimization in an OTEC plant using organic Rankine cycle

Yang, Min-Hsiung; Yeh, Rong-Hua - In: Renewable Energy 68 (2014) C, pp. 25-34

organic Rankine cycle (ORC), and also investigated the optimal operations required for the performance. A finite …

Persistent link: https://www.econbiz.de/10010803727

Operating maps of a rotary engine used as an expander for micro-generation with various working fluids

Antonelli, M.; Baccioli, A.; Francesconi, M.; Desideri, U. - In: Applied Energy 113 (2014) C, pp. 742-750

The determination of the most suitable operative fluid for the various types of Organic Rankine Cycle expansion machines has been the object of an abundant literature. In this study an analysis was carried out in a rotary volumetric expander based on the Wankel concept, which was never studied...

Persistent link: https://www.econbiz.de/10010718928

Techno-economic feasibility assessment of a biomass cogeneration plant based on an Organic Rankine Cycle

Uris, María; Linares, José Ignacio; Arenas, Eva - In: Renewable Energy 66 (2014) C, pp. 707-713

Biomass-fueled Organic Rankine Cycle power plants in a cogeneration topping layout have been operated in Central Europe since 2000. These plants are usually integrated into a district heating system and located near to the villages whose thermal and electric energy demands are to be covered. In...

Persistent link: https://www.econbiz.de/10011046218

The comparision of a basic and a dual-pressure ORC (Organic Rankine Cycle): Geothermal Power Plant Velika Ciglena case study

Guzović, Zvonimir; Rašković, Predrag; Blatarić, Zoran - In: Energy 76 (2014) C, pp. 175-186

proposed: ORC (Organic Rankine Cycle) and Kalina cycle. Also for the most prospective geothermal fields, energy and exergy … analysis for the proposed cycles are performed, on the basis of which the most suitable cycle is proposed. It is ORC which in … efficiency). With aim to further improving of geothermal energy utilization in this paper the replacement of a basic ORC with a …

Persistent link: https://www.econbiz.de/10011053145

Fluid selection of Organic Rankine Cycle for low-temperature waste heat recovery based on thermal optimization

Cataldo, Filippo; Mastrullo, Rita; Mauro, Alfonso William; … - In: Energy 72 (2014) C, pp. 159-167

The purpose of the present paper is to propose a methodology for the fluid selection of an Organic Rankine Cycle for low-temperature waste heat recovery. The selection of an optimal working fluid is carried out by an optimization process, using the Genetic Algorithm. Three decision variables are...

Persistent link: https://www.econbiz.de/10011053198

Critical temperature criterion for selection of working fluids for subcritical pressure Organic Rankine cycles

Xu, Jinliang; Yu, Chao - In: Energy 74 (2014) C, pp. 719-733

the optimal temperature difference, at which the thermal efficiency is maximum. The ORC performance with fluids of Tc … ORC thermal efficiencies are randomly distributed against other fluid physical properties except Tc. Thus, the critical …

Persistent link: https://www.econbiz.de/10011053241

ORC optimization for medium grade heat recovery

Ayachi, Fadhel; Boulawz Ksayer, Elias; Zoughaib, Assaad; … - In: Energy 68 (2014) C, pp. 47-56

The ENERCO_LT (ENErgy ReCOvery from Low Temperature heat sources) project is a waste heat recovery project that aims to reduce energy consumption in industrial gas production sites by producing electricity through Organic Rankine Cycles supplied by exothermic process discharges at low and medium...

Persistent link: https://www.econbiz.de/10011053256