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VDI Wissensforum GmbH - 28. Deutscher Flammentag

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VDI Wissensforum GmbH (ed.)

28. Deutscher Flammentag

Series: VDI-Berichte

Volume 2302 2017

Results in this title

D. Nikolaenko, C. Spijker, H. Raupenstrauch Modelling the Jet Cooler for Hot-dip Galvanization of Steel Strips S. 741-746

„… jetsurface heat interaction between the fluid region (describing the cooling gas) and the solid region …” „… down by cooling gas from an array of round jets impinging on the upper and lower surfaces of the …” „… continuous strip of hot steel is fed horizontally supported by rolls through a cooling section. Cooling gas …”

A. Zietak, F. Özdogan, J. Janicka, F. di Mare Entwicklung eines LES/LES-Interfaces für die Simulation der Wandkühlung einer Brennkammer (Work-in-Prozess) S. 765-770

„… (Work-in-Progress) Development of a LES/LES-interface for combustor wall cooling A. Zietak, Dr.-Ing. F …” „… development of a reliable and accurate method to predict the behaviour of the wall cooling film and the wall …” „… flow on combustor liner heat transfer and cooling: a numerical investigation with hybrid …”

F. Zentgraf, M. Stephan, B. Albert, B. Böhm, A. Dreizler Anwendung von strukturierter Beleuchtung auf Gasphasen-Thermometrie mit Phosphorpartikeln S. 705-710

„… , T., Lengyel, T., Hassa, C. u. Gerendás, M.: Characterization of advanced combustor cooling concepts …” „… emanating from angled and trenched film cooling holes. Int J Heat Mass Tran 103 (2016) S. 390–400 [3] Lee …”

S. Eckart, S. Voss, H. Krause Charakterisierung von Verlöschungsgrenzen an nicht vorgemischten Gegenstromflammen mit Hilfe der Streckungsratenanalyse S. 649-660

„… are sucked into the bottom duct and cooled down to less than 70 °C with a water-cooling system. The …” „… of the burner. A water cooling system is also applied in the same section in order to quench the …”

S. Feldhoff, R.T.E. Hermanns Recent improvements of the Heat Flux setup to determine laminar burning velocities of liquid fuels S. 711-716

„… VDI-Berichte Nr. 2302, 2017 711 cooling jacket, which maintains the temperature of the plenum chamber at a …”

D. Lechtenberg Verbrennungsoptimierung durch feinst vermahlene, abfallstämmige Ersatzbrennstoffe S. 227-240

„… – European Cement Research Academy: Impact of Burning and Cooling Conditions on clinker quality. ECRA …”

N. Schmitz, C. Schwotzer, H. Pfeifer, J. Schneider, E. Cresci, J.G. Wünning Experimentelle und numerische Untersuchungen zur Auslegung eines energieeffizienten Brenners mit oxidationsträger Schutzgasatmosphäre S. 241-252

„… during the finishing, rolling, cooling and coiling of thin hot strips, final report, Luxemburg, 2004 [5 …”

doi.org/10.51202/9783181023020

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VDI Wissensforum GmbH (ed.)

Dritev 2022

Series: VDI-Berichte

Volume 2401 2022

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C. Ugare, A. Sibirko Plastics in high reliability Power Inverter Applications S. 209-222

„… Plastics in high reliability Power Inverter Applications Integrated circuit packaging, cooling …” „… coolant flow could result in inefficient cooling which leads to increase of temperature of the power …” „… in blue. Iso-lation is only needed at Pin Fin plug area for busbar cooling (AVL patented solution …”

A. J. Wimmer High-Speed Testing: The Fast Lane towards a Running System S. 365-380

„… speeds seem to have reached a stable level. New Requirements (2): Rotor Cooling Along with increasing …” „… . Therefore, more and more development departments think about or do already use the opportunity of cooling …” „… cooling of the UUT rotor through the high-speed shaft of the test rig drive, e. g. a high-speed gearbox …”

P. Alagarsamy, A. Zangaro Compact Reduced Order Model (ROM) based on Finite Element (FE) Models of Power Electronics in Electric and Hybrid Vehicles S. 95-108

„… a fitting. In simple cases with a single cooling condition this fitting is always easy, since only …” „… one state must be represented by the model. However, for variable flow rates and cooling conditions of …” „… parts. To avoid these inaccuracies due to variable cooling conditions, a compact reduced Order model …”

J. Gindele, U. Franzmann, L. Herdle, A. Pawlenka The Magna 7HDT400 for BMW’s new 48V hybrid drive family S. 1-12

„… additional or reinforced clutch and requires no additional fluid circuit for cooling and VDI-Berichte Nr …” „… electromechanically-actu-ated gear-shift system – were taken from the 7DCT300 without modification. The oil cooling of the EM …” „… uses the existing electric motor-driven on-demand oil pump for clutch cooling. An ad-ditional switching …”

J. Kniel, M. Göckler, B. Müller Holistic thermal management as a “must have” for efficient BEV S. 397-406

„… . For the E-Drive Unit a cooling concept must be chosen for the E-Motor. But there are several …” „… like providing heat to the cooling circuit in the vehicle, we can simulate to most important Use-Cases …” „… bottom-up view, you’re facing the following situation. The concrete cooling concept is implemented at the …”

M. Schröder, K. Herold, C. Monissen Efficiency Increase of Electric Machines with Active Thermal Field Weakening S. 119-132

„… freedom for innovative cooling concepts Dr.-Ing. Michael Schröder, Dr.-Ing. Konrad Herold, FEV Europe …” „… temperature and thus also the magnet temperature in a controlled manner, with reduced cooling power, will …” „… thermal management with an alternative cooling strategy may be suitable to regulate mag-netic excitation …”

D. Lindvai-Soos, S. Kaimer Electric Drives for All-wheel Functions – A System Comparison of ASM and PSM S. 109-118

„… this out, a significantly more complex cooling system is required than for the PSM. A comprehensive …” „… size and higher cooling requirements. It needs more case material like aluminum, a larger stator, and …” „… unfavorable thermal stability, the ASM needs an active fluid cooling system, that is to say, an oil pump, an …”

F. Schuchter, M. Schönstein, K. Bause, A. Albers Temperature Modelling of a Dual Clutch with Artificial Neural Networks S. 335-346

„… cooling and the switching strategy. Overheating of the clutch can also lead to coking of the lubricating …” „… temperature are the friction power and the cooling behavior. The frictional power is largely determined by the …” „… , 2022340 The temperature of the cooling oil ? and the fluid velocity contained in the Nusselt number …”

J. Merckling Use of Power-Dense Fuel-Efficient Tapered Roller Bearings in E-Drives under Low-Viscosity Oil and High-Speed Conditions S. 153-168

„… bearings. Thermal runaway/scoring: A lack of oil and cooling and/or excessive bearing heat gen-eration can …” „… generation: Excessive bearing heat generation can cause thermal runaway if theoil flow/cooling system is not …”

G. Göppert, M. Adrian AI Approach to Wet Friction Torque Model Adaptation S. 321-334

„… torque, speeds, cooling volume flow and input temperature. Instead of using the full history of all the …” „… model of the input variables input speed, output speed, cooling oil VDI-Berichte Nr. 2401, 2022 329flow …”

S. kyoung Lee, B. jae Lee, H. joon Kim Extreme cornering performance of Integrated Drive Axle on vehicle S. 291-302

„… for record measurement, and other laps were warm-up and cooling driving to prevent overload of the …”

Z. Liu, V. Stegmayer, S. Rinderknecht, U. Fechter Multiphase CFD investigation of splash lubrication S. 169-184

„… . Regarding the system cooling and lubrication, some gears are immerged in the oil sump, so that the oil can …”

doi.org/10.51202/9783181024010

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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B. Bauer, R. Hambrecht, A. Kube Thermal analysis and optimization of gearboxes by simulation S. 917-926

„… gear unit needs extra cooling. Using a fan that is mounted to a fast rotating shaft is a common …” „… cooling system. Target of this work is, to elaborate an optimal cooling concept with fan and air guiding …” „… parts. Without an external cooling device, a specific operation temperature is required to achieve an …”

J. Lohmiller, J. Hoffmeister, J. Hermes, M. Ansorg, H. Dhonau Development and investigation of austempered ductile iron (ADI) for thick-walled gear components S. 963-976

„… iron during cooling is compensated by the expansion of graphite. Therefore, a rigid mold wall and a …” „… study. Cooling curves, reflecting the cooling behavior of the carrier in the salt bath, were simulated …” „… simulated cooling curves start at 80% of the austenitizing temperature which corresponds to the A3 …”

S. Grützner Holistic simulation of gearboxes – system simulation S. 51-60

„… analyses of gearsets The system shown in the model in Figure 4 is cooled by an oil cooling system, for …” „… which another task must be solved. What happens when the cooling system drops out, and how much time do …” „… drive. It contains a hydraulic and pneumatic model of the oil cooling circuit as well as a thermal model …”

M. Kalin, A. Kupec Wear and Fatigue Behaviour of Polymer Gears under Controlled Temperature Conditions S. 1637-1648

„… devices, gear sizes and shapes, surrounding environment, as do the cooling and heating rates. Moreover …” „… accumulation of heat that cannot be removed from the gears via natural cooling, and this increase in root …” „… the gear geometry, counter-body and environmental (cooling) conditions. Nevertheless, this increase …”

E. Maier, A. Ziegltrum, T. Lohner, K. Stahl Characterization of TEHL contacts of thermoplastic gears S. 1483-1496

„… friction, convection cooling and reduction of wear to negligible levels by a separating lubricant film …” „… counter surfaces are commonly used besides convective lubrication cooling. The above literature review …” „… lubrication unit with heating and cooling possibilities and a filter system provides lubricant at the …”

A. Şorea, F. Buus Bendixen Reluctance magnetic gear – Magnetic gears, no longer toothless S. 615-622

„… are placed on the outside of the two drives which greatly reduces their fluctuation and makes cooling …” „… one magnet Flux guides on outside which means Better cooling Odd tooth numbers possible which means …”

B. Zhmud, J. Blomkvist, M. Fallström An advanced thermal processing & coating process for enhancing gear tribology S. 1451-1462

„… 500 to 550oC, and is therefore typically ended by a cooling or quenching step in which the steel …” „… designed for rapid or at least controlled cooling of steel or other metals as part of a hardening …”

G. Eitzinger Adaptive coatings on gears for NVH improvement S. 1439-1450

„… coating thickness in an appropriate time is the substrate (gear) cooling. We use a planetary substrate …” „… table to coat the gears. In systems like that one it is not possible to have a direct cooling …”

M. Schwenk, J. Hoffmeister, J. Hermes Prediction of local load carrying capacity for gears – a materials science approach S. 989-1002

„… mm) since the cooling from the face sides strongly contributes. From this information, the thickness …” „… Time [s] Time [s] Fig. 8: Comparison of measured [23] and calculated cooling curves for hardening oils …” „… assumption that the cooling during the quenching process is modelled correctly as shown above, the as …”

A. Kubo Change of gear steel quality as function of globalization – Back ground of the development for high speed automatic hardness tester S. 41-50

„… stage of the production. During cooling, steel congeals and crystalizes. Crystal-formation proceeds …” „… is Hv337-375 and that of 3hr-processed is Hv297-310, where the kind of cooling media was different …”

M. Ophey, F. Klocke, C. Löpenhaus Approach for modeling grinding worm wear S. 1365-1378

„… , Energy Dissipation (Wear and Friction) Wear Characteristics Intermediate Medium (Cooling Lubricant …” „… determined. Due to the constant conditions of workpiece, tool and cooling lubricant in both processes, it …”

B. Kianian, C. Andersson Sustainability-conscious Powder Metallurgy gear manufacturing – An analysis of current manufacturing challenges S. 1251-1264

„… techniques like minimum quantity lubrication, cryogenic cooling, dry cutting; 3) utilizing alternative gear …” „… cooling stages. Then, each stage will be thoroughly investigated from sustainability and cost perspective …”

C. Hasl, P. Oster, T. Tobie, K. Stahl Bending strength of oil-lubricated cylindrical plastic gears – Modified bending strength calculation based on VDI 2736 S. 1649-1660

„… POM material with adequate cooling/lubrication provided, higher speeds in the supercritical range are …”

T. Jurkschat, T. Lohner, K. Stahl Improved calculation method for load-dependent gear losses S. 893-904

„… temperature of ϑOil = 30 °C. The speed is limited at vt = 8.3 m/s for ϑOil = 30 °C due to the cooling …”

A. Lohrengel, M. Heß Thrust cone bearings provide increased efficiency for helical gear units at moderate speed levels – Indications for possible energy saving potential in an expanded field of application S. 231-242

„… interrupted for cooling, furthermore high temperature-time-gradients might indicate a surface destruction as …”

J. J. Liou, S. Rakuff The development of worm drives S. 503-516

„… to solidify is enriched with tin upon cooling, and form alpha and delta phases. The alpha and delta …”

doi.org/10.51202/9783181022948

Hans-Martin Henning, Thorsten Urbaneck, Alexander Morgenstern, Tomas Núnez, Edo Wiemken, Egbert Thümmler, Ulf Uhlig - Kühlen und Klimatisieren mit Wärme.

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Hans-Martin Henning, Thorsten Urbaneck, Alexander Morgenstern, Tomas Núnez, Edo Wiemken, Egbert Thümmler, Ulf Uhlig

Kühlen und Klimatisieren mit Wärme.

Series: BINE-Fachbuch

Volume 2015

Results in this title

7 Zitierte Literatur und Abbildungsverzeichnis S. 152-157

„… (Frankreich). Solar Heating and Cooling Executive Committee (Hrsg.). Mai 2005 [9] Bodach, M.: Energiespeicher …” „… [11] International Energy Agency (IEA), Paris (Frankreich). Solar Heating & Cooling Programme. Task 25 …” „… District Heating, District Cooling and Combined Heat and Power (Hrsg.): District heating and cooling …”

6 Ausblick S. 149-151

„… Heat Pump Programme n Task 48 »Quality Assurance and Support Measures for Solar Cooling Systems«, IEA …” „… Solar Heating and Cooling Programme n Task 53 »New Generation Solar Cooling & Heating Systems (PV or …” „… solar thermally driven systems)«, IEA Solar Heating and Cooling Programme n IEA, ECES, Annex 20 …”

9 Weiterführende Literatur S. 162-165

„… Kühlbedarfscharakteristika der betrachteten Gebäude. Henning, H.-M.; Motta, M.; Mugnier, D, (Eds.): Solar Cooling Handbook …” „… – A Guide to Solar Assisted Cooling and Dehumidification Processes. AMBRA | V, 2013. Dritte …”

2 Technologien zur thermisch angetriebenen Kälteerzeugung und Klimatisierung S. 21-62

„… Bezeichnung für den englischen Begriff »Dessicative Evaporative Cooling« (DEC). Dies bedeutet, dass der Gehalt …”

doi.org/10.51202/9783816794028

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2019

Series: VDI-Berichte

Volume 2354 2019

Results in this title

M. Özbek, J. Trommer, K. Akiyama, Y. Yamada Nidec next generation electric traction motor

„… and cooling strategy are decisive for a successful market introduction to fulfil the customer needs …” „… hollow for applications that allow oil- VDI-Berichte Nr. 2354, 201978 cooling of the motor. The design …” „… electric motor, which gives better cooling and hence a higher continuous performance which is highlighted …”

T. Pullen Integrated eDrive system for various performance classes

„… power from 100kW up to 260kW can be realized. Software controlled active cooling of the electric motor …” „… drive application. In addition, the 140kW High-Performer does not require active rotor shaft cooling of …” „… motor rotor shaft oil cooling can be integrated. An oil pump module with an oil/water heat exchanger …”

Y. Le Neindre Great Wall Motors’ 2nd generation of Pi4 platform – A high performance PHEV for premium SUV in China

„… (preengagement & engine start) & cooling of the transmission when the vehicle is driven in pure electric mode …” „… pack cooling. Relying on the strong in-house expertise of its battery pack business unit, SVOLT …” „… , Great Wall Motors developed specific cooling solution in order to achieve robust and repeatable …”

P. Lück, K. Bennewitz, J. Tousen Volkswagen’s electric drivetrains of the new modular e-drive kit (MEB)

„… is scalable, adaptable for different cell types and equipped with integrated liquid cooling. It is …” „… , the busbars for the machine’s AC contacts and the liquid cooling unit. Fig. 4: Power inverter (PI …” „… inside a cast housing that also incorporates the liquid cooling. The rotor bearings on the output side …”

O. Simon, W. Heubner Triple wet clutch module and actuation system, shift cylinders and park lock for modern hybrid transmissions – Architecture and technical description of a triple wet clutch unit and the related active...

„… clutch cooling. The clutch actuation is done by an electrically driven dual flow pump with two inlets …” „… separated by check-valves. Active lubrication and dedicated cooling of the clutch pack by a separate …” „… solutions. The chosen example shows a schematic with a heat exchanger, a lubrication and a cooling circle …”

A. Gehring, M. Beringer, M. Özdemir Overview of stator technologies motors for electro mobility in passcars – The right technology for each application

„… hottest wire in the centre of the winding. The cooling can be improved e.g. by using an oil spray cooling …” „… . However in automotive applications the story is different: Efficiency, cooling and thus constant power …” „… efficiency - Rectangular wires provide better cooling behaviour and thus provide increased continuous power …”

A. Kinigadner, T. Biermann Schaeffler eAxle family – future solutions for the electric drivetrain

„… cooling capabilities. In addition to the main function of producing the defined speedtorque behavior, the …” „… cooling capacity and copper filling ratio also have to be taken into consideration in order to ensure …” „… process is eliminated. This helps to reduce eddy current losses, increase the cooling surface area of the …”

R. Gat, M. Ehlen Virtual lubrication analysis – Simulation of oil flow in gearboxes using a novel lagrangian approach

„… different areas. In modern transmission development one major task is to ensure lubrication and cooling of …” „… cooling of critical components (e.g. bearings, gears engagement). Models for thermal conduction and heat …”

B. Müller, C. Angrick, M. Fritz New concepts for electrical drive trains for high power density

„… magnetic circuit as well: Ideal cooling-down capacity and a high copper filling ratio to ensure …” „… the cooling system and the control frequency of the electrical drive system. The large number of …” „… for contacting and cooling are always the same. Moreover, for the sake of robustness, special …”

P. Fietkau, N. Lamparsky, M. Felbermaier, A. Fröhlcke, T. Conze Holistic design approach for electric drives

„… at maximum speed combined with the temperature distribution calculated in the Thermal & Cooling …” „… correction before welding. 6. Cooling DPS, Lubrication DPS and Actuation DPS In the Thermal & Cooling …” „… drive unit to the cooling system are established. The results are used in the Electric Motor DPS and …”

H. Schäfer System impacts to the electrical drive by using SIC-power semiconductors

„… demand for cooling can be reduced. If we compare two power devices (1200 V / 300 A) based on silicon or …” „… . Especially, with an inverter with high efficiency, the demand for cooling can be reduced significantly and …”

D. Schweigert, M. Mileti, B. Morhard, M. Sedlmair, M. Fromberger, M. Otto, T. Lohner, K. Stahl Innovative transmission concept for hyper-high-speed electromechanical powertrains

„… for cooling and lubrication the warmth generated by the losses of power electronics and electric …” „… , which serves both as cooling and lubricating medium is carried out by Fuchs Lubricants. All components …” „… approach, the cooling circuit for the gear, the electric machines and the power electronics is mainly …”

D. P. Morisco, I. Liviu Iepure Enhanced application of high-performance-computing in the design process of high-power-density traction motors

„… or a better cooling link. Fig. 1 shows the bar-wound winding of the stator core. Accompanying with …” „… manufacturing process, easier cooling and better insulation. Additional to the above mentioned properties, it …”

M. Kruse, H. Decker, Sebastian Eulert Optimisation of electric motor acoustics of a hybrid dual clutch gearbox using virtual methods

„… is achieved using a hybrid module. This comprises a cooling unit and an electric motor consisting …” „… (clutch with centrifugal pendulum / rotor / stator / cooling unit / sensors) [2] VDI-Berichte Nr. 2354 …”

A. Harsch, G. Clausen, A. Rink Modular system 8G-DCT with all-wheel drive

„… lubricant for oiling and cooling purposes. VDI-Berichte Nr. 2354, 2019 87 Additional seals are not required …” „… other hand all cooling and lubrication requirements are also taken care of. Due to the presence of a …”

A. Grunwald Transmission system footprint related to fatigue, efficiency and NVH

„… reduction. Transmission efficiency analysis includes losses through core hysteresis, active cooling, gear …” „… is very demanding. Typically, the gearbox lubrication and cooling is achieved without an additional …”

H. Merkel Solutions for increased power density at shifting clutches

„… testing conditions. The chart shows the influence of pressure, temperature and cooling oil flow on the …”

R. Nasdal, K. Masser Diverse requirements, one product family – The HV Kit for LCV from MAGNA

„… , no energy is required for clutch actuation & cooling during in-gear operation. This is an advantage …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems

„… the actuators for gear shifts itself. The lubrication of gears and bearings as well as cooling for …” „… valve, which is responsible for lubrication and cooling. It does not need to reduce pressure in that …”

A. Viehmann, J.-E. Schleiffer, S. Rinderknecht Evaluation of the dedicated range-extender transmission powertrain concept DE-REX regarding efficiency, costs and complexity – Comparative assessment of electric and hybrid powertrain configurations b...

„… analysis has to include all significant cost drivers like the EM, PE, cooling, HV battery and for hybrid …” „… battery capacity, no additional energy amount for heating, cooling or auxiliaries is considered. Detailed …” „… turn, an ICE including turbo charger, cooling system, fuel system and exhaust system is added which …”

C. Kim New next generation eight-speed automatic transmission for FWD vehicles

„… using cooling fluid from engine, which can contribute to the improvement of fuel economy by reducing …”

K. Hasegawa, D. Kosaka, S. Shimizu, K. Kawabata, H. Tsukashima Development of new hybrid AWD system for the SUV segment

„… transmission fluid (ATF) for lubrication, which is also used for motor cooling.To accomplish the performance …”

C. Schmahl, M. Höck, D. Ressin, M. Kesseler GKN’s ActiveConnect AWD system as an energy-efficient solution for electrified vehicles

„… AWD system are evaluated. The costs associated with wiring, cooling and a potential modification of …”

A. Alkan Human/machine readable language representation method in HEV drivetrain testing

„… , low-battery-voltage) by other devices (high and low voltage supply, climate chamber, and heating-cooling …”

U. Stockinger, H. Pflaum, K. Stahl Single vs. multi-cone synchronizers with carbon friction lining – A comparison of load limits and deterioration behavior

„… friction linings, multi-cone synchronizers, which have small thermal mass and worse cooling compared to …”

M. Horn, F. Kutter, B. Vahlensieck Advanced development of dedicated hybrid concepts – Systematic search for optimal powertrain concepts

„… point must be avoided because of cooling and oil flow issues. Inside the EM1 rotor two planetary gear …”

C. Leonhardt, M. Otto, K. Stahl Potential of lightweight construction and component properties of joined spur gears

„… case hardening process. Experiments showed that a durable joint can be reached by cooling down the …”

A. Lampe, R. Serway, L. Große Siestrup, C. Gühmann Artificial intelligence in transmission control – Clutch engagement with reinforcement learning

„… clutch cooling capability (as is the case with dry clutch systems for instance) can be subjected to …”

K. von Rueden, C. Danzer, J. Liebold, T. Mueller, T. Hirschbeck 1, 2 or 3 – how much it would be? Evaluating the need of multispeed electric drives coming from different perspectives

„… the electric motor, the inverter, the battery, cooling system and subsequent transmission, both …”

doi.org/10.51202/9783181023549

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