Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation

Hasan Üstün Başaran

Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation

Abstract

Modern on-road automotive vehicles mostly utilize exhaust after-treatment (EAT) systems to meet the stringent emission regulations. Although those systems are generally effective to reduce emission rates, they are ineffectual at low loads due to low exhaust temperatures (below 250^oC). This study demonstrates on a diesel engine model that exhaust temperatures can be increased above 250^oC at light loads through internal exhaust gas recirculation (IEGR). Engine system operates at 1700 RPM engine speed and within 2.5-4.5 bar brake mean effective pressure (BMEP) engine load. IEGR increases the amount of in-cylinder hot residual exhaust gases and thus causes a considerable exhaust temperature rise (up to 70^oC). Warmer exhaust system keeps EAT emission conversion efficiency mostly above 90 % and accelerates EAT catalyst bed warm-up through increased (up to 142 %) heat transfer rates. IEGR is not as fuel-consuming as conventional EAT warming techniques and can keep the fuel consumption rise below 5 %.

Keywords

Diesel engines,Exhaust Gas Temperature,Exhaust After-treatment Management,Internal Exhaust Gas Recirculation

References

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Hasan Üstün Başaran ^*
0000-0002-1491-0465
Türkiye

Publication Date

January 15, 2019

Submission Date

July 11, 2018

Acceptance Date

November 15, 2018

Published in Issue

Year 2019 Volume: 21 Number: 61

IZ

https://izlik.org/JA78NJ83RZ

Cite

RIS / Bibtex

APA

Başaran, H. Ü. (2019). Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi, 21(61), 125-135. https://izlik.org/JA78NJ83RZ

AMA

1.Başaran HÜ. Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation. DEUFMD. 2019;21(61):125-135. https://izlik.org/JA78NJ83RZ

Chicago

Başaran, Hasan Üstün. 2019. “Improving Exhaust Temperature Management At Low-Loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi 21 (61): 125-35. https://izlik.org/JA78NJ83RZ.

EndNote

Başaran HÜ (January 1, 2019) Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi 21 61 125–135.

IEEE

[1]H. Ü. Başaran, “Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation”, DEUFMD, vol. 21, no. 61, pp. 125–135, Jan. 2019, [Online]. Available: https://izlik.org/JA78NJ83RZ

ISNAD

Başaran, Hasan Üstün. “Improving Exhaust Temperature Management At Low-Loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi 21/61 (January 1, 2019): 125-135. https://izlik.org/JA78NJ83RZ.

JAMA

1.Başaran HÜ. Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation. DEUFMD. 2019;21:125–135.

MLA

Başaran, Hasan Üstün. “Improving Exhaust Temperature Management At Low-Loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation”. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen Ve Mühendislik Dergisi, vol. 21, no. 61, Jan. 2019, pp. 125-3, https://izlik.org/JA78NJ83RZ.

Vancouver

1.Hasan Üstün Başaran. Improving Exhaust Temperature Management At Low-loaded Diesel Engine Operations Via Internal Exhaust Gas Recirculation. DEUFMD [Internet]. 2019 Jan. 1;21(61):125-3. Available from: https://izlik.org/JA78NJ83RZ