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Power enhancement potential of a mixture transcritical cycle for a low-temperature geothermal power generation

Baik, Young-Jin; Kim, Minsung; Chang, Ki-Chang; Lee, … - In: Energy 47 (2012) 1, pp. 70-76

The power enhancement potential of a mixture transcritical cycle was investigated by comparison between the power of an R134a subcritical cycle and that of binary HFC (hydrofluorocarbon) mixture transcritical cycles for a low-temperature geothermal heat source of about 100°C. To fairly compare...

Persistent link: https://www.econbiz.de/10011052978

Experimental study on Organic Rankine Cycle for waste heat recovery from low-temperature flue gas

Zhou, Naijun; Wang, Xiaoyuan; Chen, Zhuo; Wang, Zhiqi - In: Energy 55 (2013) C, pp. 216-225

An experimental system for heat recovery from low-temperature flue gas based on Organic Rankine Cycle (ORC) was …

Persistent link: https://www.econbiz.de/10011053050

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

Analysis and assessment of a new organic Rankine based heat engine system with/without cogeneration

Hogerwaard, Janette; Dincer, Ibrahim; Zamfirescu, Calin - In: Energy 62 (2013) C, pp. 300-310

conditioning), refrigeration, and automotive industries for use in an ORC (organic Rankine cycle). A theoretical analysis and an … experimental study are carried out for an ORC with R134a as the working fluid, utilizing a low-temperature heat source (Tsource … < 150 °C), with focus on the expansion and boiling processes. The complete ORC model is comprised of models for the expander …

Persistent link: https://www.econbiz.de/10011053420

Energetic and exergetic analysis of waste heat recovery systems in the cement industry

Karellas, S.; Leontaritis, A.-D.; Panousis, G.; Bellos, E. - In: Energy 58 (2013) C, pp. 147-156

-steam Rankine cycle, and an Organic Rankine Cycle (ORC). A parametric study proved that the water steam technology is more efficient … than ORC in exhaust gases temperature higher than 310 °C. Finally a brief economic assessment of the most efficient …

Persistent link: https://www.econbiz.de/10011053648

Exergy Assessment of Recovery Solutions from Dry and Moist Gas Available at Medium Temperature

Ayachi, Fadhel; Ksayer, Elias Boulawz; Neveu, Pierre - In: Energies 5 (2012) 3, pp. 718-730

The Agence Nationale de la Recherche (ANR-EESI) ENERGY ReCOvery from Low Temperature heat sources (ENERCO_LT) project is a waste heat recovery project that aims to reduce energy consumption in industrial gas production sites, by producing electrical power from exothermic processes discharges at...

Persistent link: https://www.econbiz.de/10011030792

Organic Rankine Cycle recovering stage heat from MSF desalination distillate water

Al-Weshahi, Mohammed A.; Anderson, Alexander; Tian, Guohong - In: Applied Energy 130 (2014) C, pp. 738-747

distillate water to power an Organic Rankine Cycle (ORC), comparing R134a and R245fa refrigerants as the working fluid. Using … design characteristics of an existing ORC unit, the model was first validated against its measured output. The distillate hot … water from MSF stages is utilised to provide heat to the ORC and performance is investigated for both working fluids and for …

Persistent link: https://www.econbiz.de/10010906259

Comparative analysis of natural and synthetic refrigerants in application to low temperature Clausius–Rankine cycle

Borsukiewicz-Gozdur, Aleksandra; Nowak, Władysław - In: Energy 32 (2007) 4, pp. 344-352

In the paper conducted has been a concise survey of up to date investigations and simulations of the low-temperature Clausius–Rankine (C–R) cycle as well as presented have been authors own results of calculations regarding effectiveness of operation of the power station following such cycle....

Persistent link: https://www.econbiz.de/10011054790