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VDI Wissensforum GmbH - LAND.TECHNIK 2022

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK 2022

Series: VDI-Berichte

Volume 2395 2022

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A. Klein, M. Kissel, P. Pickel, F. de Moraes Boos, V. Kegel GridCON2 – Development of a Cable Drum Vehicle Concept to Power 1MW Fully Electric Agricultural Swarms S. 11-16

„… GridCON2 Development of a Cable Drum Vehicle Concept to Power 1MW Fully Electric Agricultural …” „… the need of higher power and higher range by bringing 1MW to the field through a 3 km long cable. As …” „… alternative matching the same energy transfer. An off-road power dense vehicle is required. This leads to …”

F. Pult, A. Stein, M. Geimer Challenges in the Use of Alternative Fuels: Solutions to handle Boil-Off Gas in Agricultural Machines S. 431-440

„… between the heat flow from the environment minus the cooling power of the cooling system. The heat flow …” „… System +- Heat transfer Fluid Power Electricity Grid Table 3: Properties of Cryomech AL125 [20] Volume …” „… electrical energy can either be stored in a battery or used to run the cooling system. In addition, the …”

S. Prufling, B. Langer Latest technology solutions for Charging and e-Machines – how off-road and agriculture applications can benefit from automotive innovations S. 365-380

„… vehicle application where charging power up to one Megawatt is aimed. For summarizing and closing this …” „… influencing parameters and related constraints needs to be taken. The power can be increased by torque and …” „… the thermal vehicle system requirements and interfaces also need to be considered for choice of the …”

F. Wohlfahrt, T. Gores, S. Terorde, L. Frerichs Applicability Evaluations of Methane based Powertrain and Energy Storage Systems on High Performance Harvesting Machine Applications S. 423-430

„… to additional fan-power-demand and limited compatibility to modular cooling-systems for …” „… demands regarding the reduction of greenhouse gas emissions (GHG) to comply with the ambitious sector …” „… between ~5-20% [1, 2]. The use case “bio methane” increases those potentials furthermore to potentials …”

doi.org/10.51202/9783181023952

Elizabeth Heischkamp - Scrubbing System Design for CO2 Capture in Coal-Fired Power Plants

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Elizabeth Heischkamp

Scrubbing System Design for CO2 Capture in Coal-Fired Power Plants

Series: Verfahrenstechnik

Volume 953 2017

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Summary S. 163-167

„… -IC. The integration of the scrubbing system with MEA into the power plant is analogue to K1-IC at …” „… reducing CO2 emissions from advanced coal-fired power plants and the main objective is to keep related …” „… capture of 90 % CO2 from the power plant’s flue gases. In order to fulfil this objective, there were …”

Technical analysis S. 70-142

„… accounted for in the end, only the promising ones that seem to be able to contribute to power plants …” „… , pressure drop is not proportional to the square of the gas velocity anymore but to a power higher than two …” „… kJ/molCO , whereas experimental calculations indicated piperazine’s heat of absorption to be approximately …”

Titelei/Inhaltsverzeichnis

„… 2 Capture in Coal-Fired Power Plants Scrubbing System Design for CO2 …” „… Fortschritt-Berichte VDI Scrubbing System Design for CO 2 Capture in Coal-Fired Power Plants Dipl .-Ing. El izabeth …” „… , Elizabeth Scrubbing System Design for CO2 Capture in Coal-Fired Power Plants Fortschr.-Ber. VDI Reihe 3 Nr …”

Modelling of CO capture systems S. 31-69

„… constant input of the user to fulfil the intended task. 3.2.2.3 Heat exchanger and stripper system Once …” „… and a heat exchanger. For this purpose he used RateFrac12 to model both columns. According to Freguia …” „… species. And hence, in order to correct discrepancies Chen had to adjust the heats of formation of the pi …”

Introduction S. 1-17

„… coal to natural gas. • Increase use of renewable energy sources or to nuclear power2, which produce …” „… stable salts that lower the absorption capacity of the solvent. If a coal-fired power plant was to be …” „… that occur in such a system. To this end the simulation software Aspen Plus® versions 2006.5 and 7.1 …”

Downstream scrubbing of flue gases S. 18-30

„… the bottom of the absorber and then pumped through a heat exchanger to the stripper column. 2.1 …” „… this purpose. Another part of the delivered heat is used to boil up a portion of the solution, in …” „… bottom, is pumped through the heat exchanger and, since its temperature still is not low enough to enter …”

Analysis of economic feasibility S. 143-162

„… the power plant with a CO2 scrubbing system LCOE rises to at least 69.7 €/MWh. This result …” „… results and identifying optimal operation parameters for both scrubber system and power plant, until …” „… system for the purpose of solvent regeneration. Instead, steam extraction is assumed to be taken from …”

doi.org/10.51202/9783186953032

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

„… gearboxes, the thermal power limit tends to become the limiting factor. To achieve a balanced system, the …” „… the power losses inside the gearbox. The second one is to enhance the heat dissipation rate. Target …” „… solution. For this solution an optimal design is investigated. Due to the complexity of a gearbox’s heat …”

G. Hlebanja, S. Kulovec, D. Zorko, J. Hlebanja, J. Duhovnik Influence of the tooth flank shape on thermal load of the gear S. 1583-1592

„… . VDI-Berichte Nr. 2294, 20171588 The Heat flow corresponds to the power of friction and heat rate is defined by …” „… plastic gears due to their thermal sensitivity. Heat is generated by friction at the contacting surfaces …” „… a contact, whereas thermal power additionally depends on the sliding speed. The generated heat is …”

P. Kauffmann, P. Schäflein, V. Heuer PM technology for the future powertrain S. 1289-1298

„… proportional to the µm. H.µ. P P Vmiploss Where Ploss is the power lost at mesh [W], Pip is the input …” „… power [W] and HV is dimensionless tooth loss factor. Hence for a rolled gear losses due to friction at …” „… electrified powertrain with higher complexity. To meet market and legislation requirements like cost …”

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

„… detrimental accumulation of contact heat limit its applications to lowly loaded machine elements. Lubrication …” „… focused on unlubricated applications in which detrimental frictional heat is generated that leads to …” „… . Comparisons to metal gears are shown, before friction, film thickness and heat management of thermoplastic …”

T. Saito, K. Miyamoto Traction drive analysis identified with rheological friction property of traction fluid S. 1185-1190

„… with experimental data. Since half-toroidal CVT variator system was required to analyze simultaneously …” „… dynamic solver was used. This method made it possible to precisely quantify the torque capacity and power …” „… into account. A predetermined clamping force is applied to the power roller by applying hydraulic …”

K. Togai, N. Fujinaga A reduced order internal combustion engine model for transmission development S. 1191-1198

„… . Introduction A transmission is one of essential parts in a vehicle system to achieve best fuel economy and …” „… riding comfort. Input power to a transmission comes mainly from an internal combustion engine (ICE). ICE …” „… power output process response to a control mean, e.g. a throttle, is complex and large scale engine …”

D. Strasser, S. Troll, R. Sperlich, J. Münch Reliability safeguarding for an 8 MW wind energy gearbox in serial production – Prototype and process development ensuring stable quality at the highest level S. 1085-1100

„… % cumulative annual growth in 2015 to 2020. The recent tender process leads to low power prices for offshore …” „… , a proven design applied in more than 2,500 gearboxes in the power range from 2.5 to 3 MW since 2003 …” „… overall system on the individual components (see Fig 4). Due to the huge size of the model it was …”

M. Takahashi, T. Itagaki, N. Maeda, H. Takahashi Evaluation of developed micro-gear endurance test system and basic study on load-carrying characteristics of micro-spur-gears S. 243-252

„… system to conveniently perform micro-gear endurance tests. Then, we measured the minimum applied torque …” „… formed by the heat treatment is worn down. The shapes of these black lines are considered to be defined …” „… or a decrease in oil film due to the increased applied torque. However, at this stage, power …”

B. Leupold, V. Janzen, G. Kotthoff, D. Eichholz Validation approach of PM gears for eDrive applications S. 119-130

„… system related to performance and NVH in an already existing series production high performance GKN …” „… manufacturing technologies are, for example, the need for system downsizing in transmissions and differentials …” „… , the need for developing systems with higher power density and the strong NVH (Noise Vibration …”

C. Gorla, E. Conrado, F. Rosa, F. Concli Austempered Ductile Iron (ADI) for gears: manufacturing, performances and tests S. 977-988

„… , controlled by an inverter, which, during tests, only needs to provide the power losses of the system. On the …” „… geometries of the casing. A heat treatment as well as a finishing step, used to compensate the induced …” „… to form a closed mechanical power recirculation loop. A controlled rotating hydraulic actuator …”

B. Černe, D. Zorko, J. Duhovnik Semi-analytical method for the prediction of the flank temperatures of polymer gears during running S. 1611-1624

„… Increased temperatures due to frictional heat generation play a major role in the behaviour and life …” „… heat flux pattern evaluated based on eq. (4) for the meshing cycle is shown in Fig. 5 (a). To make the …” „… times or time of heat release respectively) To estimate the time ts we consider that the released …”

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

„… of the basic mechanical parts to industrial segments where motion and power transfer are needed [3 …” „… a wrought part to final shape and quality, including a heat treatment step for enhancement of …” „… e.g. heat treatment distortions and what finishing method to choose when leveraging between cost and …”

A. Miltenović, M. Banić, Ž. Mišković, R. Mitrović, V. Miltenović Prediction of heat generation in transmission bearings by application of FEM S. 1199-1208

„… Belgrade, Serbia Abstract Heat generation in bearings is manifested by the power losses of the …” „… transmission. Because of the rise in temperature due to heat generation, appearance of dilatation adversely …” „… heat generation within rolling bearing: by friction between the rolling bodies and raceways, due to …”

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

„… correlating fatigue properties to microstructural parameters using samples prepared from cast and heat …” „… Planetary gear boxes are widely used in industrial applications due to their high power density. Especially …” „… the largest carrier. The challenge is to develop a material, which is cast and heat-treated with …”

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

„… dynamic interactions with its environment. Holistic system simulation helps the engineer to understand …” „… order to understand, improve or predict the system behavior. 1. Reduction of operational noise by …” „… also possible to represent the planetary as threedimensional multi-body system (MBS), which offers the …”

C. Brecher, C. Löpenhaus, F. Goergen, D. Mevissen Crack propagation analysis of pitting damages of high-strength material systems in gear applications S. 281-292

„… on the power density of gearboxes lead to a continuous development of materials with optimized heat …” „… and depth for each material system is evaluated to understand the crack formation. The analysis …” „… in detail. The chosen variants differ in particular with regard to the material and the heat …”

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

„… friction and wear on the system elements and thus leads to changes in the surface, loss of material and …” „… scientific analyses exist. One research objective for generating gear grinding is to increase economic …” „… condition of the grinding worm. Today it is not possible to predict the wear of a grinding worm. Therefore …”

Titelei/Inhaltsverzeichnis

„… error to noise and vibration behavior of a M. Octrue gear system under load Materials J. Lohmiller …” „… Europe invites the world Time and venue: September 13th to 15th, 2017, Technische Universität München …” „… Planetary Gear Systems – Design and Analysis S. Grützner Holistic simulation of gearboxes – system …”

K. Mao, V. Goodship, N. Madhav, R. Ramakrishnan, P. Langlois Experimental Investigations of Polymer Composite Gear Performance S. 1625-1636

„… , polymer composite gears are considered for applications from low-power precision motion to high power …” „… ]. As a result the use of polymer composite gears in power transmission is limited due to the lack of …” „… , nylon and PEEK) to understand the gears’ contact, friction, wear and fracture behaviour. Two …”

K. Matsuo, Y. Suzuki, K. Fujiki Accuracy analysis of workpiece and tool in the hobbing process using Taguchi Method S. 1331-1342

„… manufactured in a series of processes consisting of “hobbing -> heat treatment -> honing”. It is essential to …” „… VDI-Berichte Nr. 2294, 2017 1333 2.3 Conversion of hob coordinate system to workpiece coordinate system …” „… The following equations hold true for converting the hob coordinate system to the workpiece coordinate …”

R. Saito, Y. Suzuki, K. Matsuo The effect on tooth root breakage strength of tooth root shapes resulting from differing hobbing conditions S. 733-740

„… power performance. As a result of these trends, there is a need to ensure the durability and …” „… conditions Ryohei Saito,Dipl.-lng. Kouji Matsuo, Hardware System Development Department, JATCO Ltd …” „… , Japan Abstract The moves to enhance fuel efficiency in response to the issue of global warming …”

R. Weidig Adoption of polymer gears – Challenges and solutions S. 1565-1574

„… requirements in an engine system where temperatures range from -40°C to 150°C. The gears in engine systems …” „… system suppliers to benchmark this alternative against their incumbent metal solutions for internal and …” „… GmbH, Hofheim a. Ts. Abstract Legislation drives the automotive megatrend to reduce fuel …”

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

„… eventually leads to fatigue stresses. The other problem with this construction is that heat generated in the …” „… adjusted in relation to the housing position. This was done by implementing a system to vary the angle of …” „… magnetic gear based on the reluctance principle is presented and compared to both modern magnetic gears …”

C. Weber, T. Tobie, K. Stahl Investigation on the flank surface durability of gears with increased pressure angle S. 173-184

„… examined experimentally. Optimization goals were the power to weight ratio of the transmission and the …” „… pressure angles αn ≈ 20° according to the basic rack as specified in ISO 53 [7] in today’s power …” „… recirculating power loop principle, also known as a foursquare configuration, in order to provide a fixed …”

A. K. Shojaei, P. Volgers, M. Cassata Advanced modeling and experimental techniques for fatigue life prediction of plastic gears S. 1575-1582

„… ), coefficient of thermal conductivity is in the range of 0.3 to 0.37 (W/m oC), and its specific heat is assumed …” „… the gear system. 4. Conclusion Due to higher energy absorption properties of polymers compared to …” „… industrial applications, e.g. electronic cars and bikes, has led to a rapid increase in plastic and hybrid …”

B. Schlecht, F. Rudolph, S. Schumann Experimental studies and simulation of hypoid gear lapping S. 1403-1414

„… second power. On the other hand, the ratio of total sliding velocity to VDI-Berichte Nr. 2294, 20171408 …” „… experience shows it to be beneficial for the acoustic behaviour of heat treated gear sets, the resulting …” „… disadvantage compared to competing processes. The flank topology after lapping is not completely predictable …”

V. Angelopoulos, M. Hirsch PM gear rolling simulations using advanced plasticity material model and improved initial conditions S. 1277-1288

„… after the primary manufacturing process (pressing of powder particles-sintering). To reduce the …” „… porosity level and parallel to improve the mechanical properties secondary operations apply. The gear …” „… rolling densification of PM gears is the most significant of them. It leads to better mechanical …”

doi.org/10.51202/9783181022948

Matthias Patrick Alexander Mrosek - Model-Based Control of a Turbocharged Diesel Engine with High- and Low-Pressure Exhaust Gas

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Matthias Patrick Alexander Mrosek

Model-Based Control of a Turbocharged Diesel Engine with High- and Low-Pressure Exhaust Gas

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 803 2017

Results in this title

Semi-Physical Mean Value Engine Model S. 12-33

„… . A further quantity are the wall heat losses PQw;st, which are necessary to determine the internal …” „… mair, which enters the gas system and the amount of air mfLst which is required to burn the injected …” „… heat dissipation to a cooling fluid with the temperature Tcl to an outflow temperature Tout, see Fig …”

Titelei/Inhaltsverzeichnis

„… flow rate kg/s or kg/h m mass kg M molar mass g/mol M torque Nm p pressure Pa P power W q specific heat …” „… turbocharger compressor power W Pf turbocharger friction power W Pt turbocharger turbine power W PQi;t heat …” „… with lumped parameters is the base to analyse the system properties of the complex air path. In doing …”

Bibliography S. 190-204

„… heat transfer investigation of a turbo charger. Journal of Engineering for Gas Turbines and Power …” „… : Theoretical compression system model. Journal of Engineering for Power, 98:190–198. 192 Bibliography Guzzella …” „… study of an LP EGR system on an automotive Diesel engine, compared to HP EGR with respect to PM and NOx …”

Introduction S. 1-7

„… to each engine with regard to demanded emission targets, system cost, impact on engine efficiency and …” „… exhaust system to the intake system. Generally, recirculated inert exhaust gas has a lower oxygen …” „… either the intake or the exhaust system can increase the pressure drop over the LP-EGR route to achieve …”

System Properties of the Air Path with HP- and LP-EGR S. 34-60

„… engine intake and exhaust system to step excitation signals of the relevant HP-EGR, LP-EGR and …” „… dominantly influence the air path dynamics as well as turbocharger heat transfers are neglected. refer to the …” „… sketched temperatures are necessary to understand the system responses in the intake and exhaust system …”

Emission and Combustion Models S. 61-85

„… model complexity these models allow to simulate the rate of heat release and the emission formation for …” „… and the exhaust system, see Sect. 4.3. Then the turbocharger acceleration and the much slower heat …” „… characteristic values from the rate of heat release. Since these model inputs are hard to excite, a D-optimal …”

Appendix S. 172-189

„… engine’s sensors and the ECU to the test bench automation system. This engine setup allows a fast exchange …” „… system with an ETK (Emulatortastkopf; emulator test probe) from ETAS makes it possible to read and modify …” „… . This system is utilised to manipulate intake and exhaust system actuators, for data acquisition of …”

Air Path Control Design and Dynamical Reference Value Generation S. 102-167

„… to control the strongly coupled gas system quantities. A first overview of general design methods and …” „… ) simplifies the coupled system of air mass flow rate and charge-air pressure to a system of operation point …” „… development in physical control results in the inversion of the turbocharger power balance to determine a …”

doi.org/10.51202/9783186803122

VDI Wissensforum GmbH - Land.Technik AgEng 2017

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VDI Wissensforum GmbH (ed.)

Land.Technik AgEng 2017

Series: VDI-Berichte

Volume 2300 2017

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W. Breu, B. Pichlmaier Electrified Utility Tractor S. 9-14

„… management has been developed to actively cool and heat the system. The switchable heat pump efficiently …” „… state of the art. The same applies to the electric high voltage safety systems, power electronics, brake …” „… Approval of the Electrical Equipment) standard power outlet. The system voltage should be within the …”

R. Himmelsbach, B. Volpert, K. Grad Electrified Front-Wheel Drive Concepts for Tractors Designed for Improved Traction Functions S. 31-38

„… differential is power dissipation, e.g. by brake actuation which converts drive power to heat. VDI-Berichte Nr …” „… coupling is cheap to produce and also makes it possible to add a four-wheel braking system at a reasonable …” „… of a motor and generator. Changing axle loads require more power to be constantly redirected between …”

doi.org/10.51202/9783181023006

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