In modern days, the use of energy consumption increasing very rapidly. Fossil fuels are finite and environmentally costly. Sustainable, environmentally benign energy can be derived from nuclear fission or captured from ambient sources. Large-scale ambient energy (eg. solar, wind and tide), is widely available and large-scale technologies are being developed to efficiently capture it. At the other end of the scale, there are small amounts of ‘wasted’ energy that could be useful if captured. Recovering even a fraction of this energy would have a significant economic and environmental impact. This is where energy harvesting (EH) comes in.
What is energy harvesting?
What are some of its applications?
Can we make that at home?
#WikiCourses
https://wikicourses.wikispaces.com/XTopic+Energy+Harvesting
Vibration Energy Harvesting - Between theory and realityKarim El-Rayes
This is the slides for a talk I have given at Sensors expo & conference 2017 in San Jose, CA, on vibrations energy harvesting. The talk discussed approaches in VEH, transduction mechanisms, common mechanical structures, design challenges and how to tackle them, in addition to a short survey on some VEHs and associated circuitry.
Energy storage system can actually store energy and use the stored energy whenever the need arises.
As the need for clean energy arises, the need to replace current existing power plants have become a global issue.
NEED OF ENERGY STORAGE
Supply and Demand mismatch
Utilize storage for peak periods.
Reliable power supply.
Reduce the need for new generation capacity.
Electrical vehicles
Emergency support.
Energy storage systems are the set of methods and technologies used to store various forms of energy.
There are many different forms of energy storage
Batteries: a range of electrochemical storage solutions, including advanced chemistry batteries, flow batteries, and capacitors
Mechanical Storage: other innovative technologies to harness kinetic or gravitational energy to store electricity
Compressed Air: utilize compressed air to create energy reserves. Electricity can be converted into hydrogen by electrolysis. The hydrogen can be then stored and eventually re-electrified.
Pumped hydro-power: creates energy reserves by using gravity and the manipulation of water elevation
Thermal: capturing heat or cold to create energy
The choice of energy storage technology is typically dictated by application, economics, integration within the system, and the availability of resources.
Infrared thermography (IR/T) as a condition monitoring technique is used to remotely gather thermal information for monitoring the condition of virtually all of the electrical components on an entire system and from generation to end user. When equipments operating under regular conditions, has a normal operating thermal signature which is typical of the specific component being inspected. Infrared thermography presents this normal signature or baseline to us. Once the baseline is established, IR/T will reveal the thermal variances deviating from the norm this localized thermal deviation can either be caused by an overheated condition or absence of heat. The information is reviewed and decisions are made for repair or to plot the temperature change over time and repair the component at a more opportune time. The information can be stored and fully analyzed at a later date providing complete computer aided predictive maintenance capabilities and trending.
What is energy harvesting?
What are some of its applications?
Can we make that at home?
#WikiCourses
https://wikicourses.wikispaces.com/XTopic+Energy+Harvesting
Vibration Energy Harvesting - Between theory and realityKarim El-Rayes
This is the slides for a talk I have given at Sensors expo & conference 2017 in San Jose, CA, on vibrations energy harvesting. The talk discussed approaches in VEH, transduction mechanisms, common mechanical structures, design challenges and how to tackle them, in addition to a short survey on some VEHs and associated circuitry.
Energy storage system can actually store energy and use the stored energy whenever the need arises.
As the need for clean energy arises, the need to replace current existing power plants have become a global issue.
NEED OF ENERGY STORAGE
Supply and Demand mismatch
Utilize storage for peak periods.
Reliable power supply.
Reduce the need for new generation capacity.
Electrical vehicles
Emergency support.
Energy storage systems are the set of methods and technologies used to store various forms of energy.
There are many different forms of energy storage
Batteries: a range of electrochemical storage solutions, including advanced chemistry batteries, flow batteries, and capacitors
Mechanical Storage: other innovative technologies to harness kinetic or gravitational energy to store electricity
Compressed Air: utilize compressed air to create energy reserves. Electricity can be converted into hydrogen by electrolysis. The hydrogen can be then stored and eventually re-electrified.
Pumped hydro-power: creates energy reserves by using gravity and the manipulation of water elevation
Thermal: capturing heat or cold to create energy
The choice of energy storage technology is typically dictated by application, economics, integration within the system, and the availability of resources.
Infrared thermography (IR/T) as a condition monitoring technique is used to remotely gather thermal information for monitoring the condition of virtually all of the electrical components on an entire system and from generation to end user. When equipments operating under regular conditions, has a normal operating thermal signature which is typical of the specific component being inspected. Infrared thermography presents this normal signature or baseline to us. Once the baseline is established, IR/T will reveal the thermal variances deviating from the norm this localized thermal deviation can either be caused by an overheated condition or absence of heat. The information is reviewed and decisions are made for repair or to plot the temperature change over time and repair the component at a more opportune time. The information can be stored and fully analyzed at a later date providing complete computer aided predictive maintenance capabilities and trending.
Various energy sources for wearable and IoT has been covered and explained.
Super-capacitor, Secondary cell and energy harvesting technology has been explained here. Thin film battery, Piezo electric energy harvesting, wireless charging and other technology has been explained.
This presentation outlines the different storage technology options available to cope up with the intermittent nature of the Renewable energy like wind and solar.
These slides use concepts from my (Jeff Funk) course entitled analyzing hi-tech opportunities to show how energy harvesters are becoming more economically feasible for the Internet of Things (IoT). Small amounts of energy can be harvested from vibrations, temperature differences, and radio frequencies using various types of electronic devices such as piezoelectric, MEMS, thermo-electric power generators, and other devices. As improvements in them occur and as the energy requirements of accelerometers, pressure sensors, gas detectors, bio-sensors, and readout circuits fall from microwatts to hundreds of nano-watts, energy harvesters become cheaper and better than are batteries. Improvements in energy harvesting are occurring in the form of higher power per area or higher power per temperature difference and improvements of about five times are expected to occur in the next 5 to 10 years. The market for energy harvesters is expected to reach $2.5 Billion by 2024. In addition to their impact on buildings and the other usual applications for IoT, they will also impact on agriculture, aircraft, and medical implants.
These slides presents on introduction to energy storage devices. Later of the class the modelling and control aspects are also going to be presented in some other slides.
The terms atomic battery, nuclear battery, tritium battery and radioisotope generator are used to describe a device which uses energy from the decay of a radioactive isotope to generate electricity. Like nuclear reactors they generate electricity from atomic energy, but differ in that they do not use a chain reaction.
Presentation by Bushveld Energy at the African Solar Energy Forum in Accra, Ghana on 16 October 2019. The presentation covers four topics:
1) Overview of energy storage uses and technologies, including their current states of maturity;
2) Benefits to combining solar PV with storage, especially battery energy storage systems (BESS)
3) Examples from Bushveld’s experience in combining BESS with PV for commercial and industrial customers;
4) Introduction to Bushveld and its approach to BESS projects.
Vibration Energy Harvesting in Action: Real World Case StudiesKarim El-Rayes
This is the slides for my talk at Sensors Expo & Conference 2018 in San Jose, California, on commercial and research applications of vibrations energy harvesting in the fields of medical implants, wearables, structural health monitoring, green buildings and many other. #Sensors18
Various energy sources for wearable and IoT has been covered and explained.
Super-capacitor, Secondary cell and energy harvesting technology has been explained here. Thin film battery, Piezo electric energy harvesting, wireless charging and other technology has been explained.
This presentation outlines the different storage technology options available to cope up with the intermittent nature of the Renewable energy like wind and solar.
These slides use concepts from my (Jeff Funk) course entitled analyzing hi-tech opportunities to show how energy harvesters are becoming more economically feasible for the Internet of Things (IoT). Small amounts of energy can be harvested from vibrations, temperature differences, and radio frequencies using various types of electronic devices such as piezoelectric, MEMS, thermo-electric power generators, and other devices. As improvements in them occur and as the energy requirements of accelerometers, pressure sensors, gas detectors, bio-sensors, and readout circuits fall from microwatts to hundreds of nano-watts, energy harvesters become cheaper and better than are batteries. Improvements in energy harvesting are occurring in the form of higher power per area or higher power per temperature difference and improvements of about five times are expected to occur in the next 5 to 10 years. The market for energy harvesters is expected to reach $2.5 Billion by 2024. In addition to their impact on buildings and the other usual applications for IoT, they will also impact on agriculture, aircraft, and medical implants.
These slides presents on introduction to energy storage devices. Later of the class the modelling and control aspects are also going to be presented in some other slides.
The terms atomic battery, nuclear battery, tritium battery and radioisotope generator are used to describe a device which uses energy from the decay of a radioactive isotope to generate electricity. Like nuclear reactors they generate electricity from atomic energy, but differ in that they do not use a chain reaction.
Presentation by Bushveld Energy at the African Solar Energy Forum in Accra, Ghana on 16 October 2019. The presentation covers four topics:
1) Overview of energy storage uses and technologies, including their current states of maturity;
2) Benefits to combining solar PV with storage, especially battery energy storage systems (BESS)
3) Examples from Bushveld’s experience in combining BESS with PV for commercial and industrial customers;
4) Introduction to Bushveld and its approach to BESS projects.
Vibration Energy Harvesting in Action: Real World Case StudiesKarim El-Rayes
This is the slides for my talk at Sensors Expo & Conference 2018 in San Jose, California, on commercial and research applications of vibrations energy harvesting in the fields of medical implants, wearables, structural health monitoring, green buildings and many other. #Sensors18
RF Energy Harvesting for Wireless DevicesIJERD Editor
Radio Frequency (RF) energy transfer and harvesting techniques have recently become alternative methods to empower the next generation wireless networks. As this emerging technology enables proactive energy replenishment of wireless devices, it is advantageous in supporting applications with quality of service requirements. In this paper, some wireless power transfer methods, RF energy harvesting networks, various receiver architectures and existing applications are presented. Finally, some open research directions are envisioned.
Linda Drabik - Energy harvesting for IoTWithTheBest
As sensors and actuators are deployed in increasing numbers across greater distances, autonomous devices will become more ubiquitous. For systems that require longer life than a primary battery can deliver, Energy Harvesting offers a promising solution.
Energy Harvesting (EH) is the process by which ambient energy is captured from one or more energy sources and stored for later use. It enables autonomous sensors or switches to perpetually run with little to no maintenance, eliminating the need for connection to an electric grid and overcoming limitations of a battery-only power source with limited energy storage.
While the cost of buying and disposing batteries is a significant consideration, it’s the operational drain of maintenance that makes Energy Harvesting a particularly attractive solution for IoT.
In this presentation:
- Energy Harvesting solutions, including those that convert sources such as light, vibration, and heat into electricity (solar cells, piezoelectric devices, and thermoelectric generators).
- Key considerations for an Energy Harvesting terminal, including optimal capacitor size.
Linda Brabik, Founder/Organizer, IoT NY Meetup
a survey of energy harvesting sources for io t deviceIJAEMSJORNAL
Environmental Energy is an alternative energy for wireless devices. A Survey of Energy Harvesting Sources for IoT Device is proposed. This paper identifies the sources of energy harvesting, methods and power density of each technique. Many reassert have carried to extract energy from environment. The IoT and M2M are connected through internet or local area network and these devices come with batteries. The maintenance and charging of batteries becomes tedious due to thousands of device are connected. The concept of Energy harvesting gives the solution for powering IoT, M2M, Wireless nodes etc. The process of extracting energy from the surrounding environment is termed as energy harvesting and derived from windmill and water wheel, thermal, mechanical, solar.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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/
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.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
2. WHY WE NEED ENERGY HARVESTING
• In modern days, the use of energy consumption increasing very rapidly.
Fossil fuels are finite and environmentally costly.
• Sustainable, environmental energy can be derived from nuclear fission or
captured from ambient sources. Large-scale ambient energy (eg. solar, wind
and tide), is widely available and large-scale technologies are being
developed to efficiently capture it.
• At the other end of the scale, there are small amounts of ‘wasted’ energy
that could be useful if captured. Recovering even a fraction of this energy
would have a significant economic and environmental impact. This is where
energy harvesting (EH) comes in.
3. INTRODUCTION
• Energy harvesting (also known as power harvesting or energy scavenging) is the process
by which energy is derived from external sources (e.g. solar power, thermal energy, wind
energy, salinity gradients, and kinetic energy), captured, and stored for small, wireless
autonomous devices, like the used in wearable electronics and wireless sensor network.
• EH also has the potential to replace batteries for small, low power electronic devices. This
has several benefits:
• Maintenance free – no need to replace batteries
• Environmentally friendly – disposal of batteries is tightly regulated because they contain
chemicals and metals that are harmful to the environment and hazardous to human
health
• Opens up new applications – such as deploying EH sensors to monitor remote or
underwater locations.
4. Where can energy be harvested?
• Energy is lost in every industrial process and everyday technology that you can think of,
eg:
• Power stations – nearly all of the world's electrical power is generated by heat engines.
These are gas or steam-powered turbines that convert heat to mechanical energy, which
is then converted to electricity. Approximately two-thirds of the energy input is not
converted to electrical power but lost as heat
• Computers and microwaves (in fact all our electronic gadgets) – lose energy through heat
and/or vibration
5. How can we harvest waste energy?
•
Different types of waste energy can be captured using different EH materials. The most
promising micro scale EH technologies in development include:
• Vibration, movement and sound can be captured and transformed into electrical power
using piezoelectric materials
• Heat can be captured and transformed into electrical power using
thermoelectric and pyro electric materials.
6. Types of energy harvesting material:
• Piezoelectric material- Mechanical stress ↔ electrical signal
• E.g. Battery-less remote control – the force used to press a button is sufficient to power
a wireless radio or infrared signal
• Thermoelectric material-Temperature differences across the material ↔ electric voltage
• E.g. Road transport – Cars and lorries equipped with a thermoelectric generators (TEG)
would have significant fuel savings (especially with the increasing cost of petrol). In 2009,
VW demonstrated this proof of concept . The thermoelectric generator of their prototype
car gained about 600W from running on a highway, reducing fuel consumption by 5% – it
is highly likely efficiency has improved significantly since then
• Pyro electric material.- Change in temperature ↔ electric charge
• E.g. The pyroelectric effect is used in some sensors, but it is still some way from
commercial energy harvesting applications.
7. MICROSTRUCTURED PIEZOELECTRIC SHOE POWER
GENERATOR OUTPERFORMS BATTERIES
• vibratory MEMS generators give out only microwatts of
electrical power.
• While this may be sufficient for emerging ultralow power sensors,
many current applications require mili watt power levels.
• Commercially available running sensors for shoes consume over
100 uW of electrical power and requirements for GPS locators are
even higher.
• Piezoelectric transducers generate electrical charge when
compressed. This makes piezoelectric materials especially
advantageous for power harvesting as they do not require bias
voltage for operation.
• In principle, a piezoelectric transducer together with two
rectifying diodes is sufficient for generating dc output voltage.
8. Continued….
• A significant challenge in harvesting piezoelectric energy is that piezoelectric
materials are optimal for generating high voltages but provide only a low current
output.
• The polymer used in the shoe transducer provides over 5 mJ of energy per step
but at voltages too large (>50 V) to be directly used in low power sensors.
• A breakthrough in piezoelectric power generation is the new voltage regulation
circuits that is developed at Louisiana Tech University that efficiently converts
the piezoelectric charge into a usable voltage.
• . A conversion circuit coverts the high voltage to a regulated 3 V output for
charging batteries or for directly powering electronics at better than 70%
conversion efficiency. Combined with the polymer transducer, the regulation
circuit gives time-averaged power of 2 mWper shoe during a regular walk.
9. New Applications for Energy Harvesting
• Medical and Fitness Devices:- RF is already being used experimentally to recharge the
batteries in pacemakers and implanted transcutaneous electrical nerve stimulation
(TENS) devices. The patient sits in a chair that contains a low-frequency RF source
whose output is received, rectified, and stored by the device.
• Researchers at MIT and Harvard have developed a chip that can be implanted into the
inner ear, with power provided by harvesting the energy in sound waves. The chip is
designed to monitor biological activity in the ears of people with hearing or balance
impairments.
• MEMS pyroelectric generator:- Oak Ridge National Laboratories has developed a
unique pyroelectric generator that can cool electronic devices, photocells, computers,
and even large waste-heat producing systems while generating electricity .
10. Conclusion:-
• Energy harvesting is useful in giving energy to low energy devices. EH also has the
potential to replace batteries for small, low power electronic devices. Benefits of EH:-
• Maintenance free – no need to replace batteries
• Environmentally friendly – disposal of batteries is tightly regulated because they contain
chemicals and metals that are harmful to the environment and hazardous to human health
• Opens up new applications – such as deploying EH sensors to monitor remote or
underwater locations.
• EH has also new applications in different sectors like medical fitness and solar field.