Design and optimization of automotive thermoelectric generators for maximum fuel efficiency improvement

被引：94

作者：

Kempf, Nicholas ^{[1
]}

Zhang, Yanliang ^{[1
]}

机构：

[1] Boise State Univ, Dept Mech & Biomed Engn, 1910 Univ Dr, Boise, ID 83725 USA

来源：

ENERGY CONVERSION AND MANAGEMENT | 2016年 / 121卷

关键词：

Automotive fuel efficiency; Thermoelectric generator; Waste heat recovery; Heat exchanger optimization; FIGURE-OF-MERIT; HALF-HEUSLER; TEMPERATURE; ENHANCEMENT; PERFORMANCE; PROGRESS; SYSTEM;

D O I：

10.1016/j.enconman.2016.05.035

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Automotive fuel efficiency can be increased by thermoelectric power generation using exhaust waste heat. A high-temperature thermoelectric generator (TEG) that converts engine exhaust waste heat into electricity is simulated based on a light-duty passenger vehicle with a 4-cylinder gasoline engine. Strategies to optimize TEG configuration and heat exchanger design for maximum fuel efficiency improvement are provided. Through comparison of stainless steel and silicon carbide heat exchangers, it is found that both the optimal TEG design and the maximum fuel efficiency increase are highly dependent on the thermal conductivity of the heat exchanger material. Significantly higher fuel efficiency increase can be obtained using silicon carbide heat exchangers at taller fins and a longer TEG along the exhaust flow direction when compared to stainless steel heat exchangers. Accounting for major parasitic losses, a maximum fuel efficiency increase of 2.5% is achievable using newly developed nanostructured bulk half-Heusler thermoelectric modules. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：224 / 231

页数：8

共 29 条

[1]

ANSYS, 2009, ANSYS IC US GUID, V12, P883

[2] Model of Heat Exchangers for Waste Heat Recovery from Diesel Engine Exhaust for Thermoelectric Power Generation [J].

Baker, Chad ;

Vuppuluri, Prem ;

Shi, Li ;

Hall, Matthew .

JOURNAL OF ELECTRONIC MATERIALS, 2012, 41 (06) :1290-1297

[3] MEASUREMENT OF FIGURE OF MERIT OF A THERMOELECTRIC MATERIAL [J].

BOWLEY, AE ;

GOLDSMID, HJ ;

COWLES, LEJ ;

WILLIAMS, GJ .

JOURNAL OF SCIENTIFIC INSTRUMENTS, 1961, 38 (11) :433-&

[4]

Bradfield M., 2008, IMPROVING ALTERNATOR

[5] Recent progress of half-Heusler for moderate temperature thermoelectric applications [J].

Chen, Shuo ;

Ren, Zhifeng .

MATERIALS TODAY, 2013, 16 (10) :387-395

[6] TEG On-Vehicle Performance and Model Validation and What It Means for Further TEG Development [J].

Crane, Doug ;

LaGrandeur, John ;

Jovovic, Vladimir ;

Ranalli, Marco ;

Adldinger, Martin ;

Poliquin, Eric ;

Dean, Joe ;

Kossakovski, Dmitri ;

Mazar, Boris ;

Maranville, Clay .

JOURNAL OF ELECTRONIC MATERIALS, 2013, 42 (07) :1582-1591

[7] Al-Doped Zinc Oxide Nanocomposites with Enhanced Thermoelectric Properties [J].

Jood, Priyanka ;

Mehta, Rutvik J. ;

Zhang, Yanliang ;

Peleckis, Germanas ;

Wang, Xiaolin ;

Siegel, Richard W. ;

Borca-Tasciuc, Theo ;

Dou, Shi Xue ;

Ramanath, Ganpati .

NANO LETTERS, 2011, 11 (10) :4337-4342

[8] NbFeSb-based p-type half-Heuslers for power generation applications [J].

Joshi, Giri ;

He, Ran ;

Engber, Michael ;

Samsonidze, Georgy ;

Pantha, Tej ;

Dahal, Ekraj ;

Dahal, Keshab ;

Yang, Jian ;

Lan, Yucheng ;

Kozinsky, Boris ;

Ren, Zhifeng .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (12) :4070-4076

[9] Enhancement of thermoelectric figure-of-merit at low temperatures by titanium substitution for hafnium in n-type half-Heuslers Hf0.75-xTixZr0.25NiSn0.99Sb0.01 [J].

Joshi, Giri ;

Dahal, Tulashi ;

Chen, Shuo ;

Wang, Hengzhi ;

Shiomi, Junichiro ;

Chen, Gang ;

Ren, Zhifeng .

NANO ENERGY, 2013, 2 (01) :82-87

[10] Enhancement in Thermoelectric Figure-Of-Merit of an N-Type Half-Heusler Compound by the Nanocomposite Approach [J].

Joshi, Giri ;

Yan, Xiao ;

Wang, Hengzhi ;

Liu, Weishu ;

Chen, Gang ;

Ren, Zhifeng .

ADVANCED ENERGY MATERIALS, 2011, 1 (04) :643-647

← 1 2 3 →