logging in or signing up wireless energy transfer bulbul2375 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4177 Category: Science & Tech.. License: All Rights Reserved Like it (18) Dislike it (0) Added: November 13, 2010 This Presentation is Public Favorites: 13 Presentation Description No description available. Comments Posting comment... By: ukashniyal (4 days ago) pls send me dis ppt I need is my id is ukashniyal@gmail.com. Saving..... Post Reply Close Saving..... Edit Comment Close By: ukashniyal (4 days ago) I am working for my mtech project on the same topic ,can u allow me to download this ppt,its a great kindness of yours towards me. Saving..... Post Reply Close Saving..... Edit Comment Close By: ironmanashu (2 month(s) ago) plz send me this great ppt at ashroxashrulz@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: naresh424.k (2 month(s) ago) pls send this presentation ..it is very important Saving..... Post Reply Close Saving..... Edit Comment Close By: jeslinmattam3 (2 month(s) ago) pls send this presentation ..it is very helpful..jeslinmattam3@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript WIRELESS ENERGY TRANSFER : WIRELESS ENERGY TRANSFER OVERVIEW : OVERVIEW WHAT IS WIRELESS POWER TRANSMISSION(WPT)/WIRELESS ENERGY TRANSFER/WIRELESS ELECTRICITY WHY WPT? THE BEGINNING TECHNIQUES TO TRANSFER ENERGY WIRELESSLY ADVANTAGES AND DISADVANTAGES APPLICATIONS CONCLUSION WHAT IS WPT : WHAT IS WPT The transmission of energy from one place to another without using wires Conventional energy transfer is using wires .But, the wireless transmission is made possible by using various technologies Ideal for continuous or instantaneous supply of electricity THE BEGINNING : THE BEGINNING NIKOLA TESLA Wireless power transmission experiments at Wardenclyffe Able to light 200 lamps over 25 miles away without using wires ELECTROSTATIC INDUCTION USING TESLA COIL : ELECTROSTATIC INDUCTION USING TESLA COIL TYPES OF WPTSHORT RANGE : TYPES OF WPTSHORT RANGE DEVICES ALMOST IN CONTACT WITH THE CHARGER TYPES OF WPTMEDIUM RANGE : TYPES OF WPTMEDIUM RANGE COVERS A RANGE OF FEW METRES TYPES OF WPTLONG RANGE:RANGING IN MILES : TYPES OF WPTLONG RANGE:RANGING IN MILES METHODS OF WPT : NEAR FIELD METHODS/NON-RADIATIVE METHODS FAR FIELD METHODS/RADIATIVE METHODS METHODS OF WPT NEAR-FIELD METHOD/NON-RADIATIVE METHOD : NEAR-FIELD METHOD/NON-RADIATIVE METHOD INDUCTIVE COUPLING RESONANT INDUCTIVE COUPLING INDUCTIVE COUPLINGTHEORETICAL MODEL BASED ON FARADAY’S PRINCIPLE OF ELECTROMAGNETIC INDUCTIONTRANSFORMING A TRANSFORMER : INDUCTIVE COUPLINGTHEORETICAL MODEL BASED ON FARADAY’S PRINCIPLE OF ELECTROMAGNETIC INDUCTIONTRANSFORMING A TRANSFORMER INDUCTIVE COUPLINGEXAMPLES : INDUCTIVE COUPLINGEXAMPLES WIRELESS CHARGING PADS(WCP) ELECTRIC BRUSHES Slide 14: An electric toothbrush's base and handle contain coils that allow the battery to recharge. RESONANT INDUCTIVE COUPLING : RESONANT INDUCTIVE COUPLING A method of efficient wireless non-radiative near field wireless energy transfer Use principles similar to magnetic induction Covers a wider range Resonance: the phenomenon that causes an object to vibrate when energy of certain frequency is applied RESONANT INDUCTIVE COUPLINGPRINCIPLE : RESONANT INDUCTIVE COUPLINGPRINCIPLE RESONANT COUPLING : Two same-frequency resonant objects tend to couple, while interacting weakly with other off-resonant environmental objects EVANESCENT COUPLING : The coupling mechanism is mediated through the overlap of the non-radiative near-fields of the two objects. : w= RESONANT INDUCTIVE COUPLING RESONANT COUPLING : Evanescence basically means ‘tending to vanish’. Propagation of energy using a standing wave RESONANT INDUCTIVE COUPLING EVANESCENT COUPLING : Proper resonant waveguide brought near the transmitter allows the energy tunnel Such receiving coils are single layer solenoids with closely placed capacitor at both ends. Since the resonant wavelength is much larger than the resonators, the field can circumvent extraneous objects in the vicinity and thus this mid-range energy-transfer scheme does not require line-of-sight This method can be safe, since magnetic fields interact weakly with living organisms. RESONANT INDUCTIVE COUPLINGWORKING Slide 21: According to the theory, one coil can recharge any device that is in range, as long as the coils have the same resonant frequency. WITRICITY : WITRICITY Witricity Corp. Started by Marin Soljacic , an MIT scientist Soljacic demonstrated how resonant magnetic coupling can wirelessly transfer energy Developing technologies for commercially viable and safe wireless energy transfer Hardware involved is based on the concept of resonant inductive coupling WITRICITY : WITRICITY 60W light-bulb being lit from 2m away. WITRICITY : WITRICITY 60W light-bulb being lit from 2m away & with an obstruction in the way A WITRICITY IMAGE OF HOW THE FIELDS WORK : A WITRICITY IMAGE OF HOW THE FIELDS WORK BLUE LINES : magnetic fields created when the current flows through the coil YELLOW LINES : flow of energy from the sources to the Witricity capture coil SHORTCOMINGS : SHORTCOMINGS Short Range of around two metres Dimensions of the transmitter & the receiver Limits for human exposure to electromagnetic fields as set by regulatory bodies like ICNIRP Slide 27: Magnetic-field values and electric-field values for the MIT wireless-power system [yellow and red] exceed ICNIRP limits [green] by a wide margin. MAGNETIC-FIELD VALUES ELECTRIC-FIELD VALUES INTEL POWERS A LIGHT BULB WIRE-FREE : INTEL POWERS A LIGHT BULB WIRE-FREE COMPLETELY WIRELESS CHARGER INVENTED BY SONY : COMPLETELY WIRELESS CHARGER INVENTED BY SONY SONY announced that they developed a Wireless Power Feeding System on October 2nd last year. It can supply 60W of electricity to devices that are at maximum 50cm, or a little over a foot and half away, without cords. WORKING: : WORKING: ADVANTAGES : ADVANTAGES Freedom from the tangled mesh of wires Reduction in cost since wires are being eliminated Energy is available at the receiver only if the energy is tapped Losses are less Supports the cause of conservation of resources Energy is clean and pollution free Minimum possibility of electric shock DISADVANTAGES : DISADVANTAGES Involves large cost Current applications are limited Receiver and transmitter should have same resonant frequency for efficient transfer of energy Receiver and transmitter should have same dimensions Does not meet the norms for electromagnetic radiation exposure SCOPE : SCOPE Could be used for powering a wide range of devices , gadgets , equipments and structures wirelessly Systems that transmit both the power and the data to devices wirelessly Recharging electric cars And so on…… FAR-FIELD METHODSPURPOSE : FAR-FIELD METHODSPURPOSE Primarily proposed for space based solar farms Wireless energy transfer Technologies used microwave power beaming laser power beaming LASER POWER BEAMING : LASER POWER BEAMING the wireless transfer of energy (heat or electricity) from one location to another , using laser light Power can be transmitted through air or space, or through optical fibres Seattle based company LaserMotive demonstrated energy transmission using laser Still in research & development stages MICROWAVE POWER BEAMING : MICROWAVE POWER BEAMING Wireless energy transfer using microwaves Microwave energy from the transmitter is converted to dc electricity by a rectenna at the receiver Slide 38: STATIONS ON EARTH CAN RECEIVE ENERGY FROM THE MOON VIA MICROWAVES. Slide 39: SCOPE: Powering unmanned air vehicles Space systems Solar energy from space LIMITATIONS: Involves huge costs Poses risk of damage to humans CONCLUSION : CONCLUSION WIRELESS ENERGY TRANSFER DOES HAVE A FUTURE REFERENCES : REFERENCES Tesla, N. “Apparatus for transmitting electrical energy.” U.S. patent number 1,119,732, issued in December 1914 Wireless Energy Transfer using Magnetic Resonance www.sciencemag.org/cgi/content/full/1143254/DC1 Wikipedia Powerpedia Wapedia Karalis, Aristeidis et al. "Wireless Non-Radiative Energy Transfer." http://arxiv.org/ftp/physics/papers/0611/0611063.pdf QUESTIONS ARE WELCOME : QUESTIONS ARE WELCOME You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
wireless energy transfer bulbul2375 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 4177 Category: Science & Tech.. License: All Rights Reserved Like it (18) Dislike it (0) Added: November 13, 2010 This Presentation is Public Favorites: 13 Presentation Description No description available. Comments Posting comment... By: ukashniyal (4 days ago) pls send me dis ppt I need is my id is ukashniyal@gmail.com. Saving..... Post Reply Close Saving..... Edit Comment Close By: ukashniyal (4 days ago) I am working for my mtech project on the same topic ,can u allow me to download this ppt,its a great kindness of yours towards me. Saving..... Post Reply Close Saving..... Edit Comment Close By: ironmanashu (2 month(s) ago) plz send me this great ppt at ashroxashrulz@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: naresh424.k (2 month(s) ago) pls send this presentation ..it is very important Saving..... Post Reply Close Saving..... Edit Comment Close By: jeslinmattam3 (2 month(s) ago) pls send this presentation ..it is very helpful..jeslinmattam3@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript WIRELESS ENERGY TRANSFER : WIRELESS ENERGY TRANSFER OVERVIEW : OVERVIEW WHAT IS WIRELESS POWER TRANSMISSION(WPT)/WIRELESS ENERGY TRANSFER/WIRELESS ELECTRICITY WHY WPT? THE BEGINNING TECHNIQUES TO TRANSFER ENERGY WIRELESSLY ADVANTAGES AND DISADVANTAGES APPLICATIONS CONCLUSION WHAT IS WPT : WHAT IS WPT The transmission of energy from one place to another without using wires Conventional energy transfer is using wires .But, the wireless transmission is made possible by using various technologies Ideal for continuous or instantaneous supply of electricity THE BEGINNING : THE BEGINNING NIKOLA TESLA Wireless power transmission experiments at Wardenclyffe Able to light 200 lamps over 25 miles away without using wires ELECTROSTATIC INDUCTION USING TESLA COIL : ELECTROSTATIC INDUCTION USING TESLA COIL TYPES OF WPTSHORT RANGE : TYPES OF WPTSHORT RANGE DEVICES ALMOST IN CONTACT WITH THE CHARGER TYPES OF WPTMEDIUM RANGE : TYPES OF WPTMEDIUM RANGE COVERS A RANGE OF FEW METRES TYPES OF WPTLONG RANGE:RANGING IN MILES : TYPES OF WPTLONG RANGE:RANGING IN MILES METHODS OF WPT : NEAR FIELD METHODS/NON-RADIATIVE METHODS FAR FIELD METHODS/RADIATIVE METHODS METHODS OF WPT NEAR-FIELD METHOD/NON-RADIATIVE METHOD : NEAR-FIELD METHOD/NON-RADIATIVE METHOD INDUCTIVE COUPLING RESONANT INDUCTIVE COUPLING INDUCTIVE COUPLINGTHEORETICAL MODEL BASED ON FARADAY’S PRINCIPLE OF ELECTROMAGNETIC INDUCTIONTRANSFORMING A TRANSFORMER : INDUCTIVE COUPLINGTHEORETICAL MODEL BASED ON FARADAY’S PRINCIPLE OF ELECTROMAGNETIC INDUCTIONTRANSFORMING A TRANSFORMER INDUCTIVE COUPLINGEXAMPLES : INDUCTIVE COUPLINGEXAMPLES WIRELESS CHARGING PADS(WCP) ELECTRIC BRUSHES Slide 14: An electric toothbrush's base and handle contain coils that allow the battery to recharge. RESONANT INDUCTIVE COUPLING : RESONANT INDUCTIVE COUPLING A method of efficient wireless non-radiative near field wireless energy transfer Use principles similar to magnetic induction Covers a wider range Resonance: the phenomenon that causes an object to vibrate when energy of certain frequency is applied RESONANT INDUCTIVE COUPLINGPRINCIPLE : RESONANT INDUCTIVE COUPLINGPRINCIPLE RESONANT COUPLING : Two same-frequency resonant objects tend to couple, while interacting weakly with other off-resonant environmental objects EVANESCENT COUPLING : The coupling mechanism is mediated through the overlap of the non-radiative near-fields of the two objects. : w= RESONANT INDUCTIVE COUPLING RESONANT COUPLING : Evanescence basically means ‘tending to vanish’. Propagation of energy using a standing wave RESONANT INDUCTIVE COUPLING EVANESCENT COUPLING : Proper resonant waveguide brought near the transmitter allows the energy tunnel Such receiving coils are single layer solenoids with closely placed capacitor at both ends. Since the resonant wavelength is much larger than the resonators, the field can circumvent extraneous objects in the vicinity and thus this mid-range energy-transfer scheme does not require line-of-sight This method can be safe, since magnetic fields interact weakly with living organisms. RESONANT INDUCTIVE COUPLINGWORKING Slide 21: According to the theory, one coil can recharge any device that is in range, as long as the coils have the same resonant frequency. WITRICITY : WITRICITY Witricity Corp. Started by Marin Soljacic , an MIT scientist Soljacic demonstrated how resonant magnetic coupling can wirelessly transfer energy Developing technologies for commercially viable and safe wireless energy transfer Hardware involved is based on the concept of resonant inductive coupling WITRICITY : WITRICITY 60W light-bulb being lit from 2m away. WITRICITY : WITRICITY 60W light-bulb being lit from 2m away & with an obstruction in the way A WITRICITY IMAGE OF HOW THE FIELDS WORK : A WITRICITY IMAGE OF HOW THE FIELDS WORK BLUE LINES : magnetic fields created when the current flows through the coil YELLOW LINES : flow of energy from the sources to the Witricity capture coil SHORTCOMINGS : SHORTCOMINGS Short Range of around two metres Dimensions of the transmitter & the receiver Limits for human exposure to electromagnetic fields as set by regulatory bodies like ICNIRP Slide 27: Magnetic-field values and electric-field values for the MIT wireless-power system [yellow and red] exceed ICNIRP limits [green] by a wide margin. MAGNETIC-FIELD VALUES ELECTRIC-FIELD VALUES INTEL POWERS A LIGHT BULB WIRE-FREE : INTEL POWERS A LIGHT BULB WIRE-FREE COMPLETELY WIRELESS CHARGER INVENTED BY SONY : COMPLETELY WIRELESS CHARGER INVENTED BY SONY SONY announced that they developed a Wireless Power Feeding System on October 2nd last year. It can supply 60W of electricity to devices that are at maximum 50cm, or a little over a foot and half away, without cords. WORKING: : WORKING: ADVANTAGES : ADVANTAGES Freedom from the tangled mesh of wires Reduction in cost since wires are being eliminated Energy is available at the receiver only if the energy is tapped Losses are less Supports the cause of conservation of resources Energy is clean and pollution free Minimum possibility of electric shock DISADVANTAGES : DISADVANTAGES Involves large cost Current applications are limited Receiver and transmitter should have same resonant frequency for efficient transfer of energy Receiver and transmitter should have same dimensions Does not meet the norms for electromagnetic radiation exposure SCOPE : SCOPE Could be used for powering a wide range of devices , gadgets , equipments and structures wirelessly Systems that transmit both the power and the data to devices wirelessly Recharging electric cars And so on…… FAR-FIELD METHODSPURPOSE : FAR-FIELD METHODSPURPOSE Primarily proposed for space based solar farms Wireless energy transfer Technologies used microwave power beaming laser power beaming LASER POWER BEAMING : LASER POWER BEAMING the wireless transfer of energy (heat or electricity) from one location to another , using laser light Power can be transmitted through air or space, or through optical fibres Seattle based company LaserMotive demonstrated energy transmission using laser Still in research & development stages MICROWAVE POWER BEAMING : MICROWAVE POWER BEAMING Wireless energy transfer using microwaves Microwave energy from the transmitter is converted to dc electricity by a rectenna at the receiver Slide 38: STATIONS ON EARTH CAN RECEIVE ENERGY FROM THE MOON VIA MICROWAVES. Slide 39: SCOPE: Powering unmanned air vehicles Space systems Solar energy from space LIMITATIONS: Involves huge costs Poses risk of damage to humans CONCLUSION : CONCLUSION WIRELESS ENERGY TRANSFER DOES HAVE A FUTURE REFERENCES : REFERENCES Tesla, N. “Apparatus for transmitting electrical energy.” U.S. patent number 1,119,732, issued in December 1914 Wireless Energy Transfer using Magnetic Resonance www.sciencemag.org/cgi/content/full/1143254/DC1 Wikipedia Powerpedia Wapedia Karalis, Aristeidis et al. "Wireless Non-Radiative Energy Transfer." http://arxiv.org/ftp/physics/papers/0611/0611063.pdf QUESTIONS ARE WELCOME : QUESTIONS ARE WELCOME