Technical Paper collections have been re-named for better clarity and alignment.x

Your Selections

Fuel tanks
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Onboard Ethanol-Gasoline Separation System for Octane-on-Demand Vehicle

Honda R&D Co., Ltd.-Hiroshi Chishima, Daiko Tsutsumi, Toru Kitamura
  • Technical Paper
  • 2020-01-0350
To be published on 2020-04-14 by SAE International in United States
Bio-ethanol is being used worldwide as an alternative fuel because of CO2 emission reduction and energy sustainability. It is common knowledge that ethanol has an advantage of high anti-knock quality. It is also well known that enhancement of both fuel economy and high load performance for general gasoline engines are limited by knocking. In order to increase anti-knock performance, a fuel system was developed to separate ethanol blended gasoline fuel into high-octane number fuel (high-concentration ethanol fuel) and low-octane number fuel (low-concentration ethanol fuel) on a vehicle. The onboard fuel separation system, installed in the fuel tank, mainly consists of a pervaporation membrane module, a fuel supply pump for the membrane, heat exchangers for fuel heating, a condenser for the permeated fuel vapor and a vacuum pump to control the pressure on the permeation side. Vapor that was not condensed at the condenser is supplied to the engine through a canister purge line. In this study, it was revealed that the onboard fuel separation system has controllability sufficient for use in automobiles by evaluating the…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Two prototype engines with colliding and compression of pulsed supermulti-jets through a focusing process, leading to nearly complete air insulation and relatively silent high compression for automobiles, motorcycles, aircrafts, and rockets

Waseda University-Remi Konagaya, Ken Naitoh, Tomotaka Kobayashi, Aya Hosoi, Yoshiki Kobayashi, Hiroki Makimoto, Yuuki Isshiki, Hajime Ito, Yusuke Tada, Nozomu Kikuchi
  • Technical Paper
  • 2020-01-0837
To be published on 2020-04-14 by SAE International in United States
We have proposed a new compressive combustion principle based on pulsed supermulti-jets colliding through focusing process, by injection from chamber wall to chamber center. This principle has potential of relatively-silent high compression around chamber center because of auto-ignition far from chamber wall and nearly-complete air insulation due to encasing of burned high temperature gas. The present principle leading to higher thermal efficiency and higher power will be applicable for automobiles, aircrafts, rockets, and also flying cars to be realized in the future. Then, water cooling system made smaller or even eliminated will result in lower price, while auto-ignition in an area larger than that created by traditional spark-ignition will lead to less NOx emission at very lean burning. Thus, we here show four new evidences based on experimental data and computational and theoretical considerations. (1) Quantitative clarification of compression level at condition without combustion (2) Atomization effect due to high-speed jets reducing fuel tank pressure (3) Combustion experiments in piston-less engine having pulsed 14-focusing jets colliding (1st prototype engine for checking this compressive combustion principle),…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

A Vehicle Level Transient Thermal Analysis of Automotive Fuel Tanks

FCA US LLC-Alaa El-Sharkawy, Dipan Arora
Optumatics LLC-Yehia Mazen, Amr Sami
  • Technical Paper
  • 2020-01-1342
To be published on 2020-04-14 by SAE International in United States
Maintaining the fuel temperature and fuel system components below certain values is an important design objective. Predicting these temperature is therefore one of the key parts of the vehicles thermal management process. One of the physical processes affecting fuel tank temperature is fuel vaporization, which is controlled by the vapor pressure in the tank, fuel composition and fuel temperature. Models are developed to enable the computation of the fuel temperature, fuel vaporization rate in the tank, fuel temperatures along the fuel supply lines, and follows its path to the charcoal canister and into the engine intake. For Diesel fuel systems where a fuel return line is used to return excess fluid back to the fuel tank, an energy balance will be considered to calculate the heat added from the high-pressure pump and vehicle under-hood and underbody. In this work, a transient heat transfer model is developed to compute the heat transfer between the in-tank fuel and the vehicle under-hood or underbody where the effect of exhaust and convection are considered. A fuel vaporization model is…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Fuel tank dynamic strain measurement using computer vision analysis

Ford Motor Company-Ram Krishnaswami
Fusion Engineering-Mark Fleming, Kunihiro Nakamoto PhD
  • Technical Paper
  • 2020-01-0924
To be published on 2020-04-14 by SAE International in United States
Stress and strain measurement of high density polyethylene (HDPE) fuel tanks under dynamic crash loading is challenging. Motion tracking combined with computer vision was employed to evaluate the strain in a HDPE fuel tank being dynamically loaded with a crash pulse. Traditional testing methods such as strain gages are limited to the small strain elastic region and may exceed the range of the strain gage. In addition, strain gages are limited to a localized area and are not able to measure the deformation and strain across a discontinuity such as a pinch seam. Other methods such as shape tape may not have the response time needed for a dynamic event. Motion tracking data analysis was performed by tracking the motion of specified points on a fuel tank during a dynamic test. An HDPE fuel tank was mounted to a vehicle section and a sled test was performed on using Seattle sled to simulate a deltaV of 55 mph in 137 msec. Multiple target markers were placed on the fuel tank. The motion of these markers…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

A Study on Bus fuel tank field failure and its solution with Finite Element Method

VE Commercial Vehicles Ltd-Srinivas Kurna
VE Commercial Vehicles, Ltd.-Dharmendra Kumar Patel, Yogendra Aniya
  • Technical Paper
  • 2020-01-0494
To be published on 2020-04-14 by SAE International in United States
World is very fast and demanding more in less time with less price. So technology is full filling these demands by providing solutions in very short time and reducing repetitive errors and obviously its cost. Today government is strict for the safety, either for vehicle driving or its manufacturing, and defining many safety rules for the same. Fuel tank is also one of the major concern for the vehicle safety. It is a container to store fuel which is highly flammable, and if it gets fail during running vehicle, may become the cause of big accidents and can be danger for the passengers’ life. So Fuel tank design should be well durable and safe. This study is based on fuel tank field failure and its correlation with fuel tank FE analysis. Field failure has been thoroughly inspected and analysed the root cause of failure. And same load cases, reactions and constraints used in FE method to identify the failure locations and to resolve it.
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Holistic Thermal Energy Modelling For Full Hybrid Electric Vehicles (HEVs)

Jaguar Land Rover-Nilabza Dutta, Christopher Price
Loughborough University-Tom Fletcher, Nikolaos Kalantzis, Ahmed Ahmedov, Ruoyang Yuan, Kambiz Ebrahimi
  • Technical Paper
  • 2020-01-0151
To be published on 2020-04-14 by SAE International in United States
Full Hybrid Electric Vehicles (HEVs) are usually defined by their capability to drive in a fully electric mode, offering the advantage that they do not produce any emissions at the point of use. This is particularly important in built up areas, where localised emissions in the form of Nitrogen Oxides (NOx) and Particulate Matter (PM), may worsen health issues such as respiratory disease. However, high degrees of electrification also mean that waste heat from the Internal Combustion Engine (ICE) is often not available for heating the cabin and maintaining the temperature of the powertrain and emissions control system. If not managed properly, this can result in increased fuel consumption, exhaust emissions, and reduced electric-only range at moderately high or low ambient temperatures negating many of the benefits of the electrification. This paper describes the development of a holistic, modular vehicle model designed for development of an Integrated Thermal Energy Management Strategy (ITEMS). The developed model utilises advanced simulation techniques, such as co-simulation and surrogate modelling, to incorporate a high fidelity thermo-fluid model, a multi-phase Heating…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.
new

Lift Capacity Calculation Method Knuckle-Boom Log Loaders and Certain Forestry Equipment

MTC4, Forestry and Logging Equipment
  • Ground Vehicle Standard
  • J2417_202001
  • Current
Published 2020-01-10 by SAE International in United States
This SAE Standard provides a uniform method to calculate the lift capacity of knuckle-boom log loaders and certain forestry equipment. It establishes definitions and specifies machine conditions for calculations. This document applies to knuckle-boom log loaders as defined in ISO 6814 and ISO 17591 and certain forestry equipment defined in ISO 6814 that have a rotating upper-structure such as feller bunchers, forwarders, harvesters, and behind the cab or rear-mounted knuckle-boom log loaders not having their own power supply. It does not apply to harvesters that are incapable of lifting a tree or log completely off the ground. This document applies to those machines that are crawler, rubber-tired, and pedestal or stationary mounted.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Simulation of Softening and Rupture in Multilayered Fuel Tank Material

General Motors Technical Center India-Vijaya Kumar R L, Biswajit Tripathy, Jayaraj Radhakrishnan
  • Technical Paper
  • 2019-28-2557
Published 2019-11-21 by SAE International in United States
Multi-layered, high-density polyethylene (HDPE) fuel tanks are increasingly being used in automobiles due to advantages such as shape flexibility, low weight and corrosion resistance. Though, HDPE fuel tanks are perceived to be safer as compared to metallic tanks, the material properties are influenced by service temperature. At higher temperatures (more than 80oC), plastic fuel tanks can soften, sag and eventually spill out the fuel, while the extreme cold (less than -20°C) can lead to potential cracking problems. Damage may also occur due to accidental drop while handling or due to an impact from a flying shrapnel. This can be catastrophic due to flammability of the fuel. The objective of this work is to characterize and develop a failure model for the plastic fuel tank material to simulate damage and enhance predictive capability of CAE for chassis and safety load cases. Different factors influencing the material properties such as service temperature, rate of deformation, state of stress etc. were considered to develop a characterization and modelling strategy for the HDPE fuel tank material. Samples cut-out from…
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Modeling and Simulation of Refueling Emissions from Plug-in Hybrid Electric Vehicles

SAE International Journal of Fuels and Lubricants

Jiangsu University, China-Shu Liu, Ren He
  • Journal Article
  • 04-12-03-0014
Published 2019-10-14 by SAE International in United States
Vehicular evaporative emissions are an important source of volatile organic compounds (VOCs). Moreover, the engines of plug-in hybrid electric vehicles (PHEVs) may not start for a long time, causing the activated carbon canister to not purge well in-use and to become saturated with fuel vapor. Therefore, the problems of evaporative emissions and refueling emissions of PHEVs are still severe. The objectives of this article are to model and simulate the refueling emissions from PHEVs to shorten the design and development cycle. To achieve the goals, the release of refueling emissions is divided into two stages: the depressurization stage and the refueling stage. The mathematical model has been established by means of the ideal gas law and the gas mass transfer and diffusion law. Then, the numerical model is built and the volume of fluid (VOF) model was applied in the simulation. Moreover, the numerical model was validated by experiment on internal pressure increase of the fuel tank. The baseline case is conducted under the condition that the fuel dispensing rate is 50 L/min. Finally, different…
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Low-Speed Impact Bumper System Test Procedure for Passenger Vehicles

Motor Vehicle Council
  • Ground Vehicle Standard
  • J2319_201910
  • Current
Published 2019-10-03 by SAE International in United States
The scope of this SAE Recommended Practice is restricted to the testing of original equipment on passenger vehicles and to provide for a uniform industry test procedure.
This content contains downloadable datasets
Annotation ability available