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Training / Education
2015-03-23
Heat transfer affects the performance, emissions and durability of the engine as well as the design, packaging, material choice and fatigue life of vehicle components. This course covers the broad range of heat transfer considerations that arise during the design and development of the engine and the vehicle with a primary focus on computational models and experimental validation covering the flow of heat from its origin in the engine cylinders and its transfer via multiple paths through engine components. Specifically, the course will cover heat transfer design considerations related to the following: engine cooling and lubrication systems as well as bay-to-bay breathing; exhaust system and after-treatment components; tail pipe gas temperatures, as well as thermal interactions between the engine and its exhaust system with the components in the vehicle under-hood and under-body; turbochargers; passenger cabin HVAC system, including windshield de-icing; battery cooling; heat exchangers and challenges associated with predicting thermal mechanical fatigue life of components.
Event
2014-10-20
This session focuses on fundamental numerical (1D and 3D CFD) and experimental research in the areas of heat and mass transfer and fluid flow that impacts engine and vehicle performance and design. Subject areas include convection, conduction, radiation, porous media, phase change including boiling, condensation, melting and freezing. Application areas include, combustion, emissions, cooling, lubrication, exhaust, intake, fuel delivery, external air flow, under hood and under body. Fundamental papers describing unique thermodynamic processes or physical chemistry relevant to engine combustion and fuels are also welcome. Papers focused on waste heat recovery technologies should be submitted to HX102/103.
Technical Paper
2014-10-13
Dhaminda Hewavitarane, Sadami Yoshiyama, Hisashi Wadahama, Xin Li
Authors: Mr Dhaminda Hewavitarane (The University of Kitakyushu, Japan), Dr Sadami Yoshiyama (The University of Kitakyushu, Japan) , Mr Hisashi Wadahama (The University of Kitakyushu, Japan). Postal Address: The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu City, Fukuoka Prefecture, 808-0135. Japan. Phone/Fax: (TEL)+81906953215, (MOBILE): +819036658310, (FAX)+81936953315 e-mail: hewavitarane_d@hotmail.com, yoshiyama@kitakyu-u.ac.jp Abstract: Background: In our modern industrial civilization, the vast majority of mechanical work is produced by heat engines. While the efficiency of heat engines has improved over the years, they remain relatively inefficient, loosing a significant portion of the input heat as waste heat. Waste heat recovery as a means of improving the overall efficiency of these engines in automotive applications has gained momentum in recent years. While many waste heat recovery (W.H.R) systems have been proposed and tested, the balance between, their efficiency, package size, integrability to the drive train and most importantly cost, have made most nonviable.
Technical Paper
2014-10-13
Karthikeyan N, Anish Gokhale, Narendra Bansode
In scooters, the Continuously Variable Transmission(CVT) is used to transmit the power from the engine to the wheels. The CVT transmission consists of a two pulleys connected to each other through a belt . The change in the transmission ratio is achieved due to the change in the pulley diameters. A centrifugal clutch is attached to the rear pulley to transmit the power to wheels once the engaging engine speed is reached. The heat is generated due to the belt slippage and the engagement of the centrifugal clutch. Excessive heating may damage the belt ,clutch and deteriorate its performance. The cooling of the belt , pulleys and the clutch is thus important for its safe operation. The cooling is achieved by the centrifugal cooling fan which forces the air over the belt, pulley and clutch. A clear understanding of the cooling system is important in designing the air flow path for clutch cooling of CVT housing. The efficiency of the cooling system depends on the quantity and direction of flow .
Technical Paper
2014-10-13
Manjushri M. Patil, Nitin P. Gokhale, Ashok T. Pise
Prediction of cylinder head temperature, using simulation techniques has been a topic of interest for engineers in the recent past. The work presented in the paper focuses on the temperature prediction part of the topic along with a methodology to correlate individual point data of the cylinder head based on field operating conditions. This paper details out the study done on a three cylinder stationary diesel engine with regards to distribution of temperature of the cylinder head bottom deck and other critical areas. The study is performed at various loads to examine the trends in these temperatures and provide an input to the estimation of the cylinder head life based on field operating conditions. In the first phase of the study a simulation model of the complete engine cooling circuit is prepared using 3D CFD software. Flow distribution and flow velocities are studied along with its variation with respect to cylinder location and channel dimensions. From above study is then used for further analysis where flow and heat transfer (conduction, convection) is solved simultaneously using CHT (conjugate heat transfer) simulation technique.
Event
2014-09-25
This session will cover the integration of turbine engine propulsion systems with regard to electrical and thermal environments of aerospace platforms. It is intended to discuss electrical and thermal interfaces between the propulsion system and vehicle, including features which enable significant power extraction, bleed air, and heat loading. Potential topics include optimizing turbine performance under vehicle demands, power extraction, engine actuation and thermal management.
Event
2014-09-25
The need for energy-efficient thermal management (TM) provides a challenge for designers of vehicle systems. Papers are being solicited for efficient TM spanning the range from component concepts (phase change materials, electronics cooling, spray cooling, heat pipes/loop heat pipes, materials research, etc.) through system-level TM integration (integrated vapor cycle/air cycle hybridization, system-level impacts of single-phase vs. two-phase heat transport, etc.).
Event
2014-09-25
The need for energy-efficient thermal management (TM) provides a challenge for designers of vehicle systems. Papers are being solicited for efficient TM spanning the range from component concepts (phase change materials, electronics cooling, spray cooling, heat pipes/loop heat pipes, materials research, etc.) through system-level TM integration (integrated vapor cycle/air cycle hybridization, system-level impacts of single-phase vs. two-phase heat transport, etc.).
Event
2014-09-25
The need for energy-efficient thermal management (TM) provides a challenge for designers of vehicle systems. Papers are being solicited for efficient TM spanning the range from component concepts (phase change materials, electronics cooling, spray cooling, heat pipes/loop heat pipes, materials research, etc.) through system-level TM integration (integrated vapor cycle/air cycle hybridization, system-level impacts of single-phase vs. two-phase heat transport, etc.).
Event
2014-09-25
The need for energy-efficient thermal management (TM) provides a challenge for designers of vehicle systems. Papers are being solicited for efficient TM spanning the range from component concepts (phase change materials, electronics cooling, spray cooling, heat pipes/loop heat pipes, materials research, etc.) through system-level TM integration (integrated vapor cycle/air cycle hybridization, system-level impacts of single-phase vs. two-phase heat transport, etc.).
Training / Education
2014-09-25
Rapid advances have been made in the range of available designs and operational parameters as well as in the fundamental understanding of compact heat exchangers (CHEs). Since the majority of modern heat exchangers used for heating and cooling systems for vehicular applications are CHEs, keeping up to date with these advances is essential. This seminar will help you understand and be able to apply comprehensive information about the intricacies of CHE design, performance, operating problems and state-of-the-art-technology for car and truck applications.
Event
2014-09-24
DATES/TIMES SUBJECT TO CHANGE. PROGRAM WILL BE FINALIZED AFTER JULY 30.
Event
2014-09-24
Heavy-duty on- and off-highway vehicles face unique thermal management challenges which can be very different from the thermal challenges in other transportation sectors. This session focuses on topics and technologies specific to thermal management for these vehicles.
Event
2014-09-24
This session will cover the integration of turbine engine propulsion systems with regard to electrical and thermal environments of aerospace platforms. It is intended to discuss electrical and thermal interfaces between the propulsion system and vehicle, including features which enable significant power extraction, bleed air, and heat loading. Potential topics include optimizing turbine performance under vehicle demands, power extraction, engine actuation and thermal management.
Viewing 1 to 30 of 6200

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