Conjugate Heat Transfer and Thermo-Mechanical Heat Cycle Analysis of an Automotive Exhaust Muffler System

Patterson, Elizabeth M.; Goldasteh, Iman; Maaita, Salamah

doi:10.4271/2015-01-0327

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…8 describes the simulation of heat absorption and dissipation in Exhaust TEG working correctly. [17][18][19] The simulation is taken a few minutes after the diesel engine stationary condition takes place. The heat generated under steady conditions is 573 K. The cooling air remains constant at 289 K. In this condition, the heat dissipation in the cooling system works well.…”

Section: Resultsmentioning

confidence: 99%

Add-On Energy Harvesting of Diesel Exhaust Muffler Using Thermoelectric Generator

Atmajaya

Suwandono

2023

j. of sci. and appl.eng.

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Trends Light fossil fuel vehicles are now turning to electricity. The electric vehicle transition begins with a hybrid car. The Hybrid vehicle uses an internal combustion engine as a generator. Controller systems, driving safety and entertain light vehicles are growing so that they consume a lot of electricity, Safe devices and driving lifestyle support. An additional battery charging system for a hybrid car now is being developed by the automotive manufacturer at least the system can increase the fulfilment of electricity consumption needs.The charging system can utilize waste energy vehicle itself or even from outside the vehicle system. In this research, the author wants to explore the thermal energy harvesting system in the remaining exhaust gases. The concept of this research is to develop a Thermoelectric Generator (TEG) as a power producer. The heat source uses a 140kW diesel engine with a heat potential of 523K at stationary conditions, and an exhaust velocity of 1407.05 m / s. This study demonstrates the potential prototype TEG then compared Ansys simulation and manual calculations as the first step for further research. The results obtained, the Exhaust TEG can produce a voltage of 2.1 Volt at 30 seconds of data collection. The cooling system on the TEG exhaust from the HVAC cooler with a temperature of 289K and a Velocity of 0.8 can produce a significant temperature difference.Keywords: Diesel Engine, Thermoelectric, Exhaust TEG system, Electricity.

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Section: Resultsmentioning

confidence: 99%

Add-On Energy Harvesting of Diesel Exhaust Muffler Using Thermoelectric Generator

Atmajaya

Suwandono

2023

j. of sci. and appl.eng.

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Integrated Exhaust Manifold Design & amp; Optimization of it through HCF and LCF Simulations for a BS6 Compliant Diesel Engine

murthy¹,

Namani²,

Vellandi³

et al. 2021

SAE Technical Paper Series

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Design Evolution of an Exhaust After Treatment System Development for a High-Power Diesel Engine Adhering Global Emission Norms

Kulkarni,

Dharan R,

Ramkumar

2024

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">With the advent of stricter emission norms such as Bharat Stage VI - Phase I and II, the design of the exhaust after treatment system becomes crucial for the internal combustion engine. Inadvertently, the size of the after-treatment system also becomes bigger to cater to the latest emission norms, which leads to increased resistance to the flow of exhaust gases through them. However, the resultant back pressure generated in these devices deteriorates the engine performance. Hence, the onus is on the engine designer to design the after-treatment system and the bracketing concept for mounting in such a way that the engine performance remains intact, and the entire system is packaged within the vehicle boundary conditions. The after-treatment system experiences severe vibrational loads as well as thermal loads. Hence, the designer faces the challenge of carefully designing the system and its brackets to survive the desired engine life and to package the entire system within the vehicle boundaries considering the thermal expansion of the system. Current work depicts the design evolution of the after-treatment system for 2.2-liter, 4-cylinder, high power diesel engine. Initially, commercially available AVL Boost software predicted the exhaust gas state along with the engine performance. With the one-dimensional simulation results and preliminary exhaust system design, a 3D CFD analysis was carried out. This predicted the temperatures at different locations of the computational domain of the after-treatment system. Subsequently, CAE analysis were carried out for modal analysis which predicted the first mode of 189Hz which was 9Hz above the target of 180Hz considering a factor of safety of 1.2. FRF analysis and fatigue analysis (TMF and HCF) were carried out to further predict the stresses on each part of the after-treatment system and to ensure that there were no stress peaks due to resonances. Thus, the exhaust after treatment design evolved in steps to ensure the durability of the exhaust system.</div></div>

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Conjugate Heat Transfer and Thermo-Mechanical Heat Cycle Analysis of an Automotive Exhaust Muffler System

Cited by 3 publications

References 5 publications

Add-On Energy Harvesting of Diesel Exhaust Muffler Using Thermoelectric Generator

Add-On Energy Harvesting of Diesel Exhaust Muffler Using Thermoelectric Generator

Integrated Exhaust Manifold Design & amp; Optimization of it through HCF and LCF Simulations for a BS6 Compliant Diesel Engine

Design Evolution of an Exhaust After Treatment System Development for a High-Power Diesel Engine Adhering Global Emission Norms

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