Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines

Liu, Peng; Shu, Gequn; Tian, Hua; Feng, Wei; Shi, Lingfeng; Xu, Zhiqiang

doi:10.1016/j.enconman.2019.111776

Title: Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines

Abstract

This paper presents results of a preliminary experimental study of the Organic Rankine Cycle (ORC) using CO2/R134a mixture based on an expansion valve. The goal of the research was to examine the feasibility and effectiveness of using CO₂ mixtures to improve system performance and expand the range of condensation temperature for ORC system. The mixture of CO₂/R134a (0.6/0.4) on a mass basis was selected for comparison with pure CO₂ in both the preheating ORC (P-ORC) and the preheating regenerative ORC (PR-ORC). Then, the feasibility and application potential of CO₂/R134a (0.6/0.4) mixture for waste heat recovery from engines was tested under ambient cooling conditions. Preliminary experimental results using an expansion valve indicate that CO₂/R134a (0.6/0.4) mixture exhibits better system performance than pure CO₂. For PR-ORC using CO₂/R134a (0.6/0.4) mixture, assuming a turbine isentropic efficiency of 0.7, the net power output estimation, thermal efficiency and exergy efficiency reached up to 5.30 kW, 10.14% and 24.34%, respectively. For the fitting value at an expansion inlet pressure of 10 MPa, the net power output estimation, thermal efficiency and exergy efficiency using CO2/R134a (0.6/0.4) mixture achieved increases of 23.3%, 16.4% and 23.7%, respectively, versus results using pure CO2 as the working fluid. Finally, experiments showedmore »« less

Authors:

Liu, Peng ^[1]; Shu, Gequn ^[2]; Tian, Hua ^[2];

^[3]; Shi, Lingfeng ^[2]; Xu, Zhiqiang ^[2]

Tianjin Univ. (China); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Tianjin Univ. (China)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Publication Date:: Wed Jul 17 00:00:00 EDT 2019

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1737582

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Energy Conversion and Management

Additional Journal Information:: Journal Volume: 198; Journal ID: ISSN 0196-8904

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; CO₂/R134a mixture; Experimental comparison; Feasibility analysis; Organic Rankine Cycle; Engine waste heat recovery

Citation Formats


                    Liu, Peng, Shu, Gequn, Tian, Hua, Feng, Wei, Shi, Lingfeng, and Xu, Zhiqiang. Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines.  United States: N. p., 2019. 
Web.  doi:10.1016/j.enconman.2019.111776.

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                    Liu, Peng, Shu, Gequn, Tian, Hua, Feng, Wei, Shi, Lingfeng, & Xu, Zhiqiang. Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines.  United States.  https://doi.org/10.1016/j.enconman.2019.111776

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                    Liu, Peng, Shu, Gequn, Tian, Hua, Feng, Wei, Shi, Lingfeng, and Xu, Zhiqiang. Wed .  
"Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines".  United States.  https://doi.org/10.1016/j.enconman.2019.111776.  https://www.osti.gov/servlets/purl/1737582.

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@article{osti_1737582,

  title        = {Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines},

  author       = {Liu, Peng and Shu, Gequn and Tian, Hua and Feng, Wei and Shi, Lingfeng and Xu, Zhiqiang},

  abstractNote = {This paper presents results of a preliminary experimental study of the Organic Rankine Cycle (ORC) using CO2/R134a mixture based on an expansion valve. The goal of the research was to examine the feasibility and effectiveness of using CO2 mixtures to improve system performance and expand the range of condensation temperature for ORC system. The mixture of CO2/R134a (0.6/0.4) on a mass basis was selected for comparison with pure CO2 in both the preheating ORC (P-ORC) and the preheating regenerative ORC (PR-ORC). Then, the feasibility and application potential of CO2/R134a (0.6/0.4) mixture for waste heat recovery from engines was tested under ambient cooling conditions. Preliminary experimental results using an expansion valve indicate that CO2/R134a (0.6/0.4) mixture exhibits better system performance than pure CO2. For PR-ORC using CO2/R134a (0.6/0.4) mixture, assuming a turbine isentropic efficiency of 0.7, the net power output estimation, thermal efficiency and exergy efficiency reached up to 5.30 kW, 10.14% and 24.34%, respectively. For the fitting value at an expansion inlet pressure of 10 MPa, the net power output estimation, thermal efficiency and exergy efficiency using CO2/R134a (0.6/0.4) mixture achieved increases of 23.3%, 16.4% and 23.7%, respectively, versus results using pure CO2 as the working fluid. Finally, experiments showed that the ORC system using CO2/R134a (0.6/0.4) mixture is capable of operating stably under ambient cooling conditions (25.2-31.5 °C), demonstrating that CO2/R134a mixture can expand the range of condensation temperature and alleviate the low-temperature condensation issue encountered with CO2. Under the ambient cooling source, it is expected that ORC using CO2/R134a (0.6/0.4) mixture will improve the thermal efficiency of a diesel engine by 1.9%.},

  doi          = {10.1016/j.enconman.2019.111776},

  journal      = {Energy Conversion and Management},

  number       = ,

  volume       = 198,

  place        = {United States},

  year         = {Wed Jul 17 00:00:00 EDT 2019},

  month        = {Wed Jul 17 00:00:00 EDT 2019}

}

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Works referenced in this record:

Multi-approach evaluations of a cascade-Organic Rankine Cycle (C-ORC) system driven by diesel engine waste heat: Part A – Thermodynamic evaluations
journal, January 2016

Shu, Gequn; Yu, Guopeng; Tian, Hua
Energy Conversion and Management, Vol. 108
DOI: 10.1016/j.enconman.2015.10.084

Comparison of different layouts for the integration of an organic Rankine cycle unit in electrified powertrains of heavy duty Diesel trucks
journal, May 2019

Villani, M.; Tribioli, L.
Energy Conversion and Management, Vol. 187
DOI: 10.1016/j.enconman.2019.02.078

Payback period investigation of the organic Rankine cycle with mixed working fluids to recover waste heat from the exhaust gas of a large marine diesel engine
journal, April 2018

Yang, Min-Hsiung
Energy Conversion and Management, Vol. 162
DOI: 10.1016/j.enconman.2018.02.032

Design optimization of ORC systems for waste heat recovery on board a LNG carrier
journal, March 2015

Soffiato, Marco; Frangopoulos, Christos A.; Manente, Giovanni
Energy Conversion and Management, Vol. 92
DOI: 10.1016/j.enconman.2014.12.085

Effect factors of part-load performance for various Organic Rankine cycles using in engine waste heat recovery
journal, October 2018

Wang, Xuan; Shu, Gequn; Tian, Hua
Energy Conversion and Management, Vol. 174
DOI: 10.1016/j.enconman.2018.08.024

Hydrocarbons and their mixtures as alternatives to environmental unfriendly halogenated refrigerants: An updated overview
journal, June 2017

Harby, K.
Renewable and Sustainable Energy Reviews, Vol. 73
DOI: 10.1016/j.rser.2017.02.039

An improved CO2-based transcritical Rankine cycle (CTRC) used for engine waste heat recovery
journal, August 2016

Shu, Gequn; Shi, Lingfeng; Tian, Hua
Applied Energy, Vol. 176
DOI: 10.1016/j.apenergy.2016.05.053

Experimental comparison between four CO 2 -based transcritical Rankine cycle (CTRC) systems for engine waste heat recovery
journal, October 2017

Shi, Lingfeng; Shu, Gequn; Tian, Hua
Energy Conversion and Management, Vol. 150
DOI: 10.1016/j.enconman.2017.08.009

Performance improvement of a preheating supercritical CO2 (S-CO2) cycle based system for engine waste heat recovery
journal, April 2018

Song, Jian; Li, Xue-song; Ren, Xiao-dong
Energy Conversion and Management, Vol. 161
DOI: 10.1016/j.enconman.2018.02.009

Turbines can use CO ₂ to cut CO ₂
journal, May 2017

Irwin, Levi; Le Moullec, Yann
Science, Vol. 356, Issue 6340
DOI: 10.1126/science.aam8281

Thermodynamic analysis of a transcritical CO2 heat recovery system with 2-stage reheat applied to cooling water of internal combustion engine for propulsion of the 6800 TEU container ship
journal, July 2016

Choi, Byung Chul
Energy, Vol. 107
DOI: 10.1016/j.energy.2016.03.116

Exergoeconomic analysis and optimization of single-pressure single-stage and multi-stage CO2 transcritical power cycles for engine waste heat recovery: A comparative study
journal, January 2018

Wang, Shun-sen; Wu, Chuang; Li, Jun
Energy, Vol. 142
DOI: 10.1016/j.energy.2017.10.055

Preliminary tests on dynamic characteristics of a CO2 transcritical power cycle using an expansion valve in engine waste heat recovery
journal, December 2017

Li, Xiaoya; Shu, Gequn; Tian, Hua
Energy, Vol. 140
DOI: 10.1016/j.energy.2017.09.022

Dynamic tests of CO2-Based waste heat recovery system with preheating process
journal, March 2019

Shi, Lingfeng; Shu, Gequn; Tian, Hua
Energy, Vol. 171
DOI: 10.1016/j.energy.2018.12.123

Experimental comparison of dynamic responses of CO2 transcritical power cycle systems used for engine waste heat recovery
journal, April 2018

Li, Xiaoya; Shu, Gequn; Tian, Hua
Energy Conversion and Management, Vol. 161
DOI: 10.1016/j.enconman.2018.02.010

Evaluation of carbon dioxide blends with isopentane and propane as working fluids for organic Rankine cycles
journal, April 2013

Garg, Pardeep; Kumar, Pramod; Srinivasan, Kandadai
Applied Thermal Engineering, Vol. 52, Issue 2
DOI: 10.1016/j.applthermaleng.2012.11.032

Potential of the transcritical Rankine cycle using CO2-based binary zeotropic mixtures for engine’s waste heat recovery
journal, October 2018

Shu, Gequn; Yu, Zhigang; Tian, Hua
Energy Conversion and Management, Vol. 174
DOI: 10.1016/j.enconman.2018.08.069

Thermodynamic analysis of carbon dioxide blends with low GWP (global warming potential) working fluids-based transcritical Rankine cycles for low-grade heat energy recovery
journal, January 2014

Dai, Baomin; Li, Minxia; Ma, Yitai
Energy, Vol. 64
DOI: 10.1016/j.energy.2013.11.019

Thermodynamic analysis and performance optimization of transcritical power cycles using CO2-based binary zeotropic mixtures as working fluids for geothermal power plants
journal, March 2017

Wu, Chuang; Wang, Shun-sen; Jiang, Xihang
Applied Thermal Engineering, Vol. 115
DOI: 10.1016/j.applthermaleng.2016.12.077

Performance analysis of a zeotropic mixture (R290/CO2) for trans-critical power cycle
journal, March 2015

Pan, Lisheng; Wei, Xiaolin; Shi, Weixiu
Chinese Journal of Chemical Engineering, Vol. 23, Issue 3
DOI: 10.1016/j.cjche.2014.04.003

Mixtures of SF6–CO2 as working fluids for geothermal power plants
journal, June 2013

Yin, Hebi; Sabau, Adrian S.; Conklin, James C.
Applied Energy, Vol. 106
DOI: 10.1016/j.apenergy.2013.01.060

Investigation of organic Rankine cycles with zeotropic mixtures as a working fluid: Advantages and issues
journal, June 2017

Bamorovat Abadi, Gholamreza; Kim, Kyung Chun
Renewable and Sustainable Energy Reviews, Vol. 73
DOI: 10.1016/j.rser.2017.02.020

A comparative study of pure and zeotropic mixtures in low-temperature solar Rankine cycle
journal, November 2010

Wang, J. L.; Zhao, L.; Wang, X. D.
Applied Energy, Vol. 87, Issue 11
DOI: 10.1016/j.apenergy.2010.05.016

Experimental study of a 1 kw organic Rankine cycle with a zeotropic mixture of R245fa/R134a
journal, December 2015

Bamorovat Abadi, Gholamreza; Yun, Eunkoo; Kim, Kyung Chun
Energy, Vol. 93
DOI: 10.1016/j.energy.2015.10.092

An experimental and modelling study of a 1 kW organic Rankine cycle unit with mixture working fluid
journal, March 2015

Jung, Hyung-Chul; Taylor, Leighton; Krumdieck, Susan
Energy, Vol. 81
DOI: 10.1016/j.energy.2015.01.003

Experimental comparison of R245fa and R245fa/R601a for organic Rankine cycle using scroll expander: Organic Rankine cycle using scroll expander
journal, July 2014

Li, Tailu; Zhu, Jialing; Fu, Wencheng
International Journal of Energy Research, Vol. 39, Issue 2
DOI: 10.1002/er.3228

Experimental study on organic Rankine cycle utilizing R245fa, R123 and their mixtures to investigate the maximum power generation from low-grade heat
journal, August 2017

Pang, Kuo-Cheng; Chen, Shih-Chi; Hung, Tzu-Chen
Energy, Vol. 133
DOI: 10.1016/j.energy.2017.05.128

Performance of low GWP R1234yf/R134a mixture as a replacement for R134a in automotive air conditioning systems
journal, January 2018

Meng, Zhaofeng; Zhang, Hua; Lei, Mingjing
International Journal of Heat and Mass Transfer, Vol. 116
DOI: 10.1016/j.ijheatmasstransfer.2017.09.049

Evaluation of a small-scale waste heat recovery organic Rankine cycle
journal, April 2017

Uusitalo, Antti; Honkatukia, Juha; Turunen-Saaresti, Teemu
Applied Energy, Vol. 192
DOI: 10.1016/j.apenergy.2017.01.088

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Title: Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines

Abstract

Citation Formats

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