Alkanes as working fluids for high-temperature exhaust heat recovery of diesel engine using organic Rankine cycle

被引：204

作者：

Shu, Gequn ^{[1
]}

Li, Xiaoning ^{[1
]}

Tian, Hua ^{[1
]}

Liang, Xingyu ^{[1
]}

Wei, Haiqiao ^{[1
]}

Wang, Xu ^{[2
]}

机构：

[1] Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China

[2] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Melbourne, Vic, Australia

来源：

APPLIED ENERGY | 2014年 / 119卷

基金：

中国国家自然科学基金;

关键词：

Waste heat recovery (WHR); High-temperature exhaust gas; Alkanes; Working fluids; Organic Rankine cycle (ORC); PERFORMANCE ANALYSIS; POWER-GENERATION; SYSTEM; ORC; EXCHANGER; OPTIMIZATION; SELECTION; DESIGN; ENERGY;

D O I：

10.1016/j.apenergy.2013.12.056

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Study on recovering waste heat of engine exhaust gas using organic Rankine cycle (ORC) has continuously increased in recent years. However, it is difficult to find out appropriate working fluids to match with exhaust gas waste heat due to high temperature. In this work, several tentative attempts and explorations are made in selecting Alkanes as working fluid owing to their excellent thermo-physical and environmental characteristics. Parameters optimization of the combined system of diesel engine with bottoming ORC (DE-ORC) is performed on Alkane-based working fluids with six indicators, including thermal efficiency (eta), exergy destruction factor (EDF), turbine size parameter (SP), total exergy destruction rate (I-ORC), turbine volume flow ratio (VFR) and net power output per unit mass flow rate of exhaust (P-net). Afterwards, the impact of molecular complexity on the indicators of VFR and SP is analyzed. Furthermore, the energy distribution of engine exhaust gases and the improvement of fuel economy, after integrating the bottoming ORC with diesel engine, are also discussed. Finally, the performance comparison between Cyclohexane-based ORC and steam cycle with relative pressure is carried out. The results show that optimized working fluids are not always constant subject to different indicators and operation parameters. However, cyclic Alkanes, Cyclohexane and Cyclopentane are considered as the most suitable working fluids when taking into account of all comprehensive indicators. The maximum improvement of 10% in brake specific fuel consumption (BSFC) is obtained for DE-ORC combined systems with Cyclohexane used as working fluid. In addition, although steam has more advantages in thermal efficiency in the current conditions, from a technical and economic point of view, Alkane-based ORCs may be more attractive than conventional steam cycles, specifically for DE waste gas heat recovery. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：204 / 217

页数：14

共 31 条

[1] Comparative energetic analysis of high-temperature subcritical and transcritical Organic Rankine Cycle (ORC). A biomass application in the Sibari district [J].

Algieri, Angelo ;

Morrone, Pietropaolo .

APPLIED THERMAL ENGINEERING, 2012, 36 :236-244

[2] Analysis of a carbon dioxide transcritical power cycle using a low temperature source [J].

Cayer, Emmanuel ;

Galanis, Nicolas ;

Desilets, Martin ;

Nesreddine, Hakim ;

Roy, Philippe .

APPLIED ENERGY, 2009, 86 (7-8) :1055-1063

[3] Process integration of organic Rankine cycle [J].

Desai, Nishith B. ;

Bandyopadhyay, Santanu .

ENERGY, 2009, 34 (10) :1674-1686

[4] Fluid selection for the Organic Rankine Cycle (ORC) in biomass power and heat plants [J].

Drescher, Ulli ;

Brueggemann, Dieter .

APPLIED THERMAL ENGINEERING, 2007, 27 (01) :223-228

[5] Thermodynamic analysis of high-temperature regenerative organic Rankine cycles using siloxanes as working fluids [J].

Fernandez, F. J. ;

Prieto, M. M. ;

Suarez, I. .

ENERGY, 2011, 36 (08) :5239-5249

[6] Energy and exergy analysis on gasoline engine based on mapping characteristics experiment [J].

Fu, Jianqin ;

Liu, Jingping ;

Feng, Renhua ;

Yang, Yanping ;

Wang, Linjun ;

Wang, Yong .

APPLIED ENERGY, 2013, 102 :622-630

[7] The influence of molecular complexity on expanding flows of ideal and dense gases [J].

Harinck, J. ;

Guardone, A. ;

Colonna, P. .

PHYSICS OF FLUIDS, 2009, 21 (08)

[8] Exergy based fluid selection for a geothermal Organic Rankine Cycle for combined heat and power generation [J].

Heberle, Florian ;

Brueggemann, Dieter .

APPLIED THERMAL ENGINEERING, 2010, 30 (11-12) :1326-1332

[9] Dynamic heat exchanger model for performance prediction and control system design of automotive waste heat recovery systems [J].

Horst, Tilmann Abbe ;

Rottengruber, Hermann-Sebastian ;

Seifert, Marco ;

Ringler, Juergen .

APPLIED ENERGY, 2013, 105 :293-303

[10] Bottoming micro-Rankine cycles for micro-gas turbines [J].

Invernizzi, Costante ;

Iora, Paolo ;

Silva, Paolo .

APPLIED THERMAL ENGINEERING, 2007, 27 (01) :100-110

← 1 2 3 4 →