Automotive Engineering Commons^™

Designing A Heat Sink For Lithium-Ion Battery Packs In Electric Vehicles, Evan Foreman, Dylan Irvine, Aaron Jackson, Christopher Brandon Remington, Sam Endrizzi

Williams Honors College, Honors Research Projects

This report addresses the concepts and implementation of fluid cooled heat sink designs for an electric or hybrid vehicle battery. To determine the battery’s temperature and heat flux profile, testing was performed by measuring these values at multiple locations on a lithium-ion pouch battery using heat flux sensors and thermocouples during the charge and discharge cycles of the battery. Once the data was collected and analyzed, trendlines were fit to the heat flux data then used to create equations for the heat flux profile during the discharging stage. Each equation represented a specific region on the battery geometry. Four heat …

Design Of The University Of Akron's 2015 Fsae Electric Vehicle Braking System, Nicholas D. Galbincea

Williams Honors College, Honors Research Projects

The following report encompasses the design of the 2015 University of Akron’s FSAE formula electric braking system. The system is one based on hydraulic braking and designed for a one man performance racing vehicle. The objective of the system is to convert the kinetic energy of the vehicle into thermal energy, allowing the vehicle to decelerate optimally and safely. The design includes three major categories: calculation and evaluation of the hydraulic system in order to select calipers and master cylinders, the design of the pedal box, and the design of the rotors.

The results and findings of the proceeding report …

Designing A Heat Sink For Lithium-Ion Battery Packs In Electric Vehicles, Dylan Irvine, Evan Foreman, Christopher B. Remington, Aaron Jackson, Sam Endrizzi

Williams Honors College, Honors Research Projects

This report addresses the concepts and implementation of fluid cooled heat sink designs for an electric or hybrid vehicle battery. To determine the battery’s temperature and heat flux profile, testing was performed by measuring these values at multiple locations on a lithium-ion pouch battery using heat flux sensors and thermocouples during the charge and discharge cycles of the battery. Once the data was collected and analyzed, trendlines were fit to the heat flux data then used to create equations for the heat flux profile during the discharging stage. Each equation represented a specific region on the battery geometry. Four heat …

Effect Of Air-Fuel Ratio On The Combustion Characteristics Of Syngas (H2:Co) In Direct-Injection Spark-Ignition Engine, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

This paper presents experimental results of the effect of air-fuel ratio on the combustion characteristics of a direct-injection spark-ignition engine fuelled with a syngas of H2/CO composition of equal molar ratio. The engine was operated at fully open throttle and the start of fuel injection (SOI) was set at 180obefore top dead center (BTDC). The spark advance was set to the minimum advance for a maximum brake torque. The experiment was conducted at lean mixture conditions with engine speed ranging from 1500 to 2400 rev/min. The results show that syngas operated under wider operation excess air ratio (λ) as compared …

Trends Of Syngas As A Fuel In Internal Combustion Engines, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

Syngas from biomass and solid waste is a carbon-neutral fuel believed to be a promising fuel for future engines. It was widely used for spark-ignition engines in the WWII era before being replaced with gasoline. In this paper, the technological development, success, and challenges for application of syngas in power generating plants, the trends of engine technologies, and the potential of this fuel in the current engine technology are highlighted. Products of gasification vary with the variation of input parameters. Therefore, three different syngases selected from the two major gasification product categories are used as case studies. Their fuel properties …

Current Trends In Water-In-Diesel Emulsion As A Fuel, Mohammed Yahaya Khan, Zainal Ambri Abdul Karim, Ftwi Yohaness Hagos, Isa Mohd Tan, A. Rashid Abd Aziz

Ftwi Yohaness Hagos

Water-in-diesel emulsion (WiDE) is an alternative fuel for CI engines that can be employed with the existing engine setup with no additional engine retrofitting. It has benefits of simultaneous reduction of both NO x and particulate matters in addition to its impact in the combustion efficiency improvement, although this needs further investigation. This review paper addresses the type of emulsion, the microexplosion phenomenon, emulsion stability and physiochemical improvement, and effect of water content on the combustion and emissions of WiDE fuel. The review also covers the recent experimental methodologies used in the investigation of WiDE for both transport and stationary …

Early Flame Development Image Comparison Of Low Calorific Value Syngas And Cng In Di Si Gas Engine, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

The early flame development stage of syngas and CNG are analysed and compared from the flame images taken over 20o CA from the start of ignition. An imitated syngas with a composition of 19.2% H2, 29.6% CO, 5.3% CH4 and balance with nitrogen and carbon dioxide, which resembles the typical product of wood biomass gasification, was used in the study. A CCD camera triggered externally through the signals from the camshaft and crank angle sensors was used in capturing of the images. The engine was accessed through an endoscope access and a self-illumination inside the chamber. The results of the …

Study Of Syngas Combustion Parameters Effect On Internal Combustion Engine, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

Syngas is considered to be a viable alternative fuel to fossil derived fuels in both gas turbines and reciprocating gas engines. Detail studies of syngas as a dual fuel in compression ignited engine, diesel as a pilot fuel and as a single fuel in a naturally aspirated spark ignited engines are found in the literature. Even though the prospect of fuelling naturally aspirated spark ignition engine with syngas is very promising and even cost competitive with that of natural gas, it is associated with power de-rating that is mainly provoked by the decrease in volumetric efficiency. With the advancement in …

Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

Lean combustion strategy is used as a tool in the reduction of greenhouse gas emission in a natural gas fuelled engines. It also increases the thermal efficiency of the combustion. In this study, late injection and stratification effect of lean charge CNG combustion in a four stroke direct injection spark ignited engine was experimentally investigated. The fuel injection is kept at 90° Crank Angle (CA) Before Top Dead Center (BTDC) and the ignition timing at 28° CA BTDC at wide open throttle. Results from this study demonstrate that Indicated Mean Effective Pressure (IMEP), it's Coefficient Of Variation (COV), in cylinder …

Building A Comprehensive Energy Model For Off-Highway Vehicles With Emphasis On Vehicle Thermal Control Systems, Ayhan Zora

Dissertations and Theses @ UNI

Utilizing machine and thermal system simulations (vehicle energy models) can be very helpful for vehicle manufacturing companies to develop a machine with acceptable component temperatures, less heat loads to the vehicle cooling systems, and reduced emissions that will also reduce overall product development cycle.

Energy models of vehicles were developed mostly in the automotive industry, and most of these studies were based on partial energy models.

The aim of this research study was to create a comprehensive energy model for agricultural machinery, which will be a basis for future work on similar products. A tractor model from a Midwest off-road …