Multiair technology uses solenoid valves controlled by an engine control unit to vary the lift, timing, and duration of valve opening for improved engine performance. The electro-mechanical system allows for higher torque and power with reduced size and weight while improving fuel economy compared to conventional camshaft technology. However, operating the solenoid valves requires additional power and current limitations restrict their use at high engine speeds.
Introduction : Basic Feature of an Automobile
Car Body Details
Types of Vehicle
Body Engineering Terminology
Morphology of Vehicle Body ( Structural ) Design
Design Considerations
This presentation include the information about the different types of superchargers, advantages & disadvantages of superchargers and turbochargers. One case study of variable geometry turbocharger is included with literature review.
Introduction : Basic Feature of an Automobile
Car Body Details
Types of Vehicle
Body Engineering Terminology
Morphology of Vehicle Body ( Structural ) Design
Design Considerations
This presentation include the information about the different types of superchargers, advantages & disadvantages of superchargers and turbochargers. One case study of variable geometry turbocharger is included with literature review.
An i-VTEC is new technology introduce by the honda in the field of automobile. This technology is most famous and installed in all cars of the honda. In this presentation on i-VTEC you will find all about it like its working principle, its performance, its advantages and disadvantages and further development in this technology. A complete illustration about this technolgy is given in this presentation.
This presentation is all about the latest innovation of the air -free tire concept by BRIDGESTONE, in the automobile sector. this will tell us how such tires actually works and has an edge over normal and tubeless tires.
An overview of the drive by wire technology is presented along with in-depth coverage of salient drive by systems such as throttle-by-wire, brake-by-wire, and steer-by-wire systems, and hybrid-electric propulsion. A review of drive by wire system benefits in performance enhancements and vehicle active safety is then discussed. This is followed by in-depth coverage of technological challenges that must be overcome before drive-by-wire systems can be production ready. Current state of the art of possible solutions to these technological hurdles is then discussed. Future trends in the drive-by-wire systems and economic and commercialization aspects of these system are presented at the conclusion of the chapter.
this ppt explains the complete working ,parts and all process in 2 stroke engine .for futher details watch videos in youtube.
for engineering students please refer foreign author book to develope knowledge .from this 11 slides a complete engine is explained
Cast iron is extensively used as the material for manufacturing disc brakes. This is much heavier and thus reduces initial acceleration and causes more fuel consumption. For reducing these effects, we use ceramic brakes.
An i-VTEC is new technology introduce by the honda in the field of automobile. This technology is most famous and installed in all cars of the honda. In this presentation on i-VTEC you will find all about it like its working principle, its performance, its advantages and disadvantages and further development in this technology. A complete illustration about this technolgy is given in this presentation.
This presentation is all about the latest innovation of the air -free tire concept by BRIDGESTONE, in the automobile sector. this will tell us how such tires actually works and has an edge over normal and tubeless tires.
An overview of the drive by wire technology is presented along with in-depth coverage of salient drive by systems such as throttle-by-wire, brake-by-wire, and steer-by-wire systems, and hybrid-electric propulsion. A review of drive by wire system benefits in performance enhancements and vehicle active safety is then discussed. This is followed by in-depth coverage of technological challenges that must be overcome before drive-by-wire systems can be production ready. Current state of the art of possible solutions to these technological hurdles is then discussed. Future trends in the drive-by-wire systems and economic and commercialization aspects of these system are presented at the conclusion of the chapter.
this ppt explains the complete working ,parts and all process in 2 stroke engine .for futher details watch videos in youtube.
for engineering students please refer foreign author book to develope knowledge .from this 11 slides a complete engine is explained
Cast iron is extensively used as the material for manufacturing disc brakes. This is much heavier and thus reduces initial acceleration and causes more fuel consumption. For reducing these effects, we use ceramic brakes.
Automatic wiper using piezoelectric materialeSAT Journals
Abstract
‘Piezoelectric Material’ is a boon to the modern world where scarcity of resources is major problem. The project is all about
running the wiper of a vehicle by using piezoelectric effect. In this process, a circuit is build using components like piezoelectric
material, capacitor, relay and wiper motor. The circuit runs automatically when the rain drops presses the piezoelectric material
which generates electricity, which in turn is stored in capacitor till a required voltage, is reached to close the relay system to run
the wiper motor. This process helps us to utilize the kinetic energy of the rain drops which would otherwise have gone wasted in
the form of heat energy, sound energy and vibratory energy.
Key Words: Piezoelectric Effect, Transducer, Sensor, Wiper.
Energy harvesting (EH), i.e. the process of extracting energy from the environment or from a surrounding system and converting it to useable electrical energy, is a prominent research topic, with many promising applications nowadays in the civil engineering field. Its areas of application currently focus to the powering small autonomous wireless sensors (thus eliminating the need for wires), in structural health monitoring and building automation applications. Regarding the latter, the prospect to implement autonomous sensors inside a building that monitor relevant parameters (temperature, humidity, chemical agent concentration etc.), and transmit intermittently data to a central unit is a recent and rapidly grown business, helped by the standardization of wireless (Wi-Fi) data transmission.
This study focuses on the numerical analysis and testing of a high efficiency Energy Harvesting device, based on piezoelectric materials, with possible applications for the sustainability of smart buildings, structures and infrastructures. The development of the device is supported by ESA (the European Space Agency) under a program for the space technology transfer.
The EH device, harvests the airflow inside Heating, Ventilation and Air Conditioning (HVAC) systems, using a piezoelectric component and an appropriate customizable aerodynamic appendix or fin that takes advantage of specific air flow effects (principally Vortex Shedding), and can be implemented for optimizing the energy consumption inside buildings.
In the present research, focus is given on different relevant modelling aspects, explored both using numerical methods (by means of FEM and CFD models) and in wind tunnel testing. In particular, different configurations for the piezoelectric bender (including rectangular, cylindrical and T-shaped) are modelled, tested and compared. The calibration of the numerical models, useful for the optimisation of the final design, and the electrical modelling and losses calculation for the EH circuit, are provided, and the effective energy harvesting potential of the working prototype device in laboratory conditions is assessed. Additional aspects relevant to the successful implementation of the research project are shown, including the final design of the device and the possible market impact.
In this presentation, Ajay introduces automation and latest trends in that domain. Ajay predicts building automation to be the next big thing in this space and he intends to use his experience in 3d modelling and mechatronics to specialize in that domain.
An introduction to the concept of Cam-Less engines which replaces the conventional Cam and follower assembly with Electro -Mechanical or Electro-Hydraulic actuators controlled by PDM and ECU for better control and improving efficiency of an I.C.Engine.A theoretically simple but practically complex kit of technology which although beneficiary has its limitations and comes with a huge development and production cost.For better insight search for the same on Youtube.
https://youtu.be/XrYt1JHNmh4
An interesting take on this.
it is a ppt on koenigsegg camless valves which are new inventions in ic engine here its principle and working have been explaned.and also working of conventional engine habe been explained.
THIS PPT IS MAINLY BASED ON HOW THE ELCTRONIC FUEL INJECTION SYSTEMS IN DIFFERENT VEHICLES AND IN THIS WE HAVE DISCUSSED DIFFERENT TECHNIQUES IN DIFFERENT VEHIOCLEWS AND THEIR MODELS ALSO AND THEIR SYSTEMS ALSO IN THE VEHICLES AND THEIR COMPONENTS AND THEIR USES ARE ALSO MENTIONED IN THIS PPT SO IT IS USEFUL FOR BOTH MECHANICAL AND ELECTRONICS STUDENTS
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
2. ‘Multiair’ is an electro-mechanical variable
valve actuation technology which is used to
control air intake in engine by solenoid
valve.
3. Multi air engine is different from other
engines because it consists of solenoid
valve.
A solenoid valve is an
electromechanical technology used for
functioning of valves.
4. Working of solenoid valve
Valve is closed (current not flow) Valve is open (current flow)
6. Lift, timing & duration of valve
opening is varied by controlling
solenoid valves
This is done by ECU when
signals are sent from the
sensors
7. Sensors sense parameters &
send signals to ECU
ECU contains microprocessors
with associated software
This ECU controls the actuators
to work according to
requirements
8. Advantages
Higher torque & power- 10 to 15 %
increase
Reduction in size & weight
Better fuel economy- 7 to 10 %
increase
9. Disadvantages
Opening & closing of valves
requires some power-
Electromechanical- alternator
Current solenoids cannot run at
high rpms;
Hidden cost of microprocessor
& software controls
10. Even though some disadvantages
are present, we can expect
electromechanical valves to replace
the conventional camshaft
technology.
