Simultaneous experimental comparison of low-GWP refrigerants as drop-in replacements to R245fa for Organic Rankine cycle application: R1234ze(Z), R1233zd(E), and R1336mzz(E)

Yang, Jenny; Ye, Zhenhong; Yu, Binbin; Ouyang, Hongsheng; Chen, Jiangping

doi:10.1016/j.energy.2019.02.054

Cited by 87 publications

(25 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Navaro-Esbri et al [49] studied HFO-1336mzz-Z, and the experimental results obtained with this fluid in comparison to those obtained with the R-245fa for the same ORC show a similar range of net electrical efficiency. Yang et al [50] studied the other isomer HFO-1336mzz-E, and obtained similar performances trends as those obtained with R-245fa. Another HFO replacement fluid for the R-245fa is the HFO-1234 [50,51]; for this HFO fluid, the two isomers (ze) and (yf) present comparable performances with R-245fa.…”

Section: Introductionsupporting

confidence: 56%

“…Yang et al [50] studied the other isomer HFO-1336mzz-E, and obtained similar performances trends as those obtained with R-245fa. Another HFO replacement fluid for the R-245fa is the HFO-1234 [50,51]; for this HFO fluid, the two isomers (ze) and (yf) present comparable performances with R-245fa. However, the operating conditions and parameters, and the experimental facility of an ORC system, are important, as illustrated with the performances of HFO-1234.…”

Section: Introductionsupporting

confidence: 56%

“…However, the operating conditions and parameters, and the experimental facility of an ORC system, are important, as illustrated with the performances of HFO-1234. Although similar performances for these two HFO fluids ((ze) and (yf)) to R-245fa were obtained in studies [50] and [51], slightly higher performance than R-245fa was obtained in the study of Yang et al [50] and slightly lower performance in the study of Cambi et al [51]. Cambi et al [51] also demonstrated the good performances of HFO-1234ze and HFO-1234yf in comparison with the HFC fluid R-134a.…”

Section: Introductionmentioning

confidence: 56%

See 2 more Smart Citations

Experimental Study and Optimization of the Organic Rankine Cycle with Pure NovecTM649 and Zeotropic Mixture NovecTM649/HFE7000 as Working Fluid

et al. 2019

View full text Add to dashboard Cite

The Organic Rankine Cycle (ORC) is widely used in industry to recover low-grade heat. Recently, some research on the ORC has focused on micro power production with new low global warming potential (GWP) replacement working fluids. However, few experimental tests have investigated the real performance level of this system in comparison with the ORC using classical fluids. This study concerns the experimental analysis and comparison of a compact (0.25 m3) Organic Rankine Cycle installation using as working fluids the NovecTM649 pure fluid and a zeotropic mixture composed of 80% NovecTM649 and 20% HFE7000 (mass composition) for low-grade waste heat conversion to produce low power. The purpose of this experimental test bench is to study replacement fluids and characterize them as possible replacement fluid candidates for an existing ORC system. The ORC performance with the pure fluid, which is the media specifically designed for this conversion system, shows good results as a replacement fluid in comparison with the ORC literature. The use of the mixture leads to a 10% increase in the global performance of the installation. Concerning the expansion component, an axial micro-turbine, its performance is only slightly affected by the use of the mixture. These results show that zeotropic mixtures can be used as an adjustment parameter for a given ORC installation and thus allow for the best use of the heat source available to produce electricity.

show abstract

Section: Introductionsupporting

confidence: 56%

Section: Introductionsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 56%

See 1 more Smart Citation

Experimental Study and Optimization of the Organic Rankine Cycle with Pure NovecTM649 and Zeotropic Mixture NovecTM649/HFE7000 as Working Fluid

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The best established large‐scale technology for the conversion of waste or renewable heat to power (besides steam turbines) is based on the Organic Rankine Cycle (ORC) . However, because devices that operate on this cycle use refrigerants, they also have adverse environmental implications . Other relevant technologies that have been developed include the Kalina or air‐bottoming cycle and carbon dioxide‐based power cycles .…”

Section: Introductionmentioning

confidence: 99%

“…[51][52][53] However, because devices that operate on this cycle use refrigerants, they also have adverse environmental implications. [54][55][56] Other relevant technologies that have been developed include the Kalina [57] or air-bottoming cycle and carbon dioxide-based power cycles. [58,59] For smallscale kilowatt-range power requirements, Stirling engines [60][61][62] and small ORC [63] systems are currently under development and approaching the application phase.…”

Section: Introductionmentioning

confidence: 99%

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

355

156

View full text Add to dashboard Cite

The need for energy‐efficient and environmentally friendly refrigeration, heat pumping, air conditioning, and thermal energy harvesting systems is currently more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives for achieving these technological goals and has been the subject of substantial basic and applied research over the last two decades. The subject is strongly interdisciplinary, requiring proper understanding and efficient integration of knowledge in different specialized fields. This review article presents a historical and up‐to‐date account of the energy‐related applications of magnetocaloric materials and information about their processing and magnetic fields, thermodynamics, heat transfer, and other relevant characteristics. The article also discusses the conceptual design of magnetocaloric refrigeration and power generation systems and some guidelines for future research in the field.

show abstract

Design and Optimization of a Waste Heat Recovery Organic Rankine Cycle System with a Steam–Water Dual Heat Source

Wang

Yuan

2023

Energy Tech

View full text Add to dashboard Cite

The organic Rankine cycle (ORC) system in plants, powered by dual steam–water heat sources, has significant power generation potential and practical research value. Herein, the conditions of 700 kPa saturated steam and 650 kPa, 90 °C water heat source are considered. Four configurations of steam–water dual heat source waste heat recovery ORC systems are proposed. The independent parameters affecting the net output power of the system are obtained by developing a mathematical model and optimizing it using the particle swarm optimization method. The results show that the location of the pinch‐point temperature difference in various ORC loops and the allowable working pressure of the heat exchanger are determinants of independent parameters. The net output powers of the conventional dual‐loop ORC (CD‐ORC), single‐loop ORC (S‐ORC), split‐flow dual‐loop ORC (SFD‐ORC), and split‐flow triple‐loop ORC SFT‐ORC systems under the optimal design parameters are 2415.73, 2168.6, 2599.62, and 2716.75 kW, respectively. In addition, S‐ORC has the highest exergy efficiency of 55.17%. SFD‐ORC and SFT‐ORC have ≈48% exergy efficiency, and CD‐ORC has the lowest exergy efficiency of 45.33%.

show abstract

Simultaneous experimental comparison of low-GWP refrigerants as drop-in replacements to R245fa for Organic Rankine cycle application: R1234ze(Z), R1233zd(E), and R1336mzz(E)

Cited by 87 publications

References 15 publications

Experimental Study and Optimization of the Organic Rankine Cycle with Pure NovecTM649 and Zeotropic Mixture NovecTM649/HFE7000 as Working Fluid

Experimental Study and Optimization of the Organic Rankine Cycle with Pure NovecTM649 and Zeotropic Mixture NovecTM649/HFE7000 as Working Fluid

Energy Applications of Magnetocaloric Materials

Design and Optimization of a Waste Heat Recovery Organic Rankine Cycle System with a Steam–Water Dual Heat Source

Contact Info

Product

Resources

About