GCSE Physics Revision: Efficiency of appliances
You can watch all my videos at www.freesciencelessons.co.uk
In this video we learn about the conservation of energy and what happens to wasted energy. We then learn how to calculate the efficiency of appliances.
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You can easily find all the videos that you need on my website, along with other great revision resources. Check it out www.freesciencelessons.co.uk
In this video, we look at what is meant by efficiency of energy transfer. We learn to calculate efficiency and then I show you the most common mistake that students make in this calculation. Finally, we explore ways to increase the efficiency of energy transfer.
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This talk was given at a local TEDx event, produced independently of the TED Conferences. The talk is about the leadership change that is required to maximize the potential for energy efficiency within in our society.
Stijn Santen holds an MSc in chemistry and chemical engineering at the University of Amsterdam and has worked for 18 years in Shell lately as global business manager CO2 before starting his company CO2-Net B.V. in 2005. He is the architect of the first commercially successful CO2 pipeline projects; Shell-Omya (1998) and Shell-OCAP (2005), where the latter is one the largest energy efficiency projects implemented in the Netherlands. He acted as visiting professor at the Oil & Gas University of General Electric in Firenze, Italy in 2005 and 2006 teaching energy markets, energy policies and climate change and published his vision on innovation in “Managing technology and innovation” by Routledge Publishers. From 2006 till 2009 he developed and implemented the 50 % CO2 reduction strategy for Rotterdam leading to the development of the Rotterdam Climate Initiative. From 2009 till 2011 he was partner in the European program CO2Europipe on CO2 transport networks. In 2012 he led the EU CO2 transport working group in the European Zero Emission Platform ZEP together with National Grid.
Currently, he is leading a project on dialogue and decision making in the Dutch energy transition with stakeholders in energy companies, governments and research institutes for the Netherlands in the EU project R&Dialogue.
About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
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The cheapest, cleanest, greenest fuel is energy efficiency. Learn more on how energy efficiency has reduced our fuel consumption by more than 7% in Nova Scotia.
Passive House is an incredible building standard for designing and certifying energy efficient buildings (homes, schools, hospitals, offices, etc.). Using the 5 green building techniques explained in this video, Passive Houses need only 10% of the energy that a conventional home uses (that’s a 90% energy saving!).
We met up with Alex and Sandra from BCIT’s High Performance Building Lab in Vancouver, Canada to learn about the different ways that a home can be built to use less energy. They’re pretty simple to understand and don’t cost much more than a typical new build:
– Highly insulated building envelope
– High performance triple glazed windows
– Elimination of thermal bridges
– Continuous air sealed layer
– Heat recovery ventilation
The building lab at BCIT is a really exciting new space where tradespeople can come to learn about green building techniques. To learn more, check out this link to their website:
www.bcit.ca/zeroenergybuildings
We want to say an extra special thank you to Sandra and Alex for taking time to show us how all of these building techniques worked (late into the evening!). We had a blast and learned so much!
Sandra Rohler
Passive House Instructor
BCIT High Performance Building Lab
Passive House Canada
Alexandre Hébert
Manager, Zero Energy Buildings, BCIT
Thanks for watching!
Mat & Danielle
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SUBTITLES AND CLOSED CAPTIONS
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A very special thank you to our subtitle and closed captions contributors!
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SPONSORS
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We occasionally include paid sponsor messages/integrations in our videos to help fund the channel. We do our best to work with companies and organizations that offer products or services that are in line with our values, and that we think would be interesting and useful to our viewers.
We will always disclose if we’re promoting products that were given to us for free, or if we’re including a sponsored message in our video.
For business or sponsorship inquiries, please email us at danielle.is.exploring@gmail.com
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VIDEO CREDITS
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Music & Song Credits:
All music in this video was composed, performed, and recorded by Mat of Exploring Alternatives.
Editing Credits:
Mat and Danielle of Exploring Alternatives
Filming Credits:
Mat of Exploring Alternatives
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Green Energy Futures follows Jeff as he does an EnerGuide for Homes audit on Brian and Laura Finley’s 1956 home. It’s all part of assembling our Top 10 Energy Efficiency Measures for your home! Knowing where you are losing energy really helps you make good decisions about where to save energy. Come along on the tour and check out our Top 10 list: Also see blog, CKUA podcast and more:
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James Brew discusses how small changes to your house can make huge changes in our environment.
About TEDx, x = independently organized event
In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized. (Subject to certain rules and regulations.)
About TED
TED is a nonprofit organization devoted to Ideas Worth Spreading. Started as a four-day conference in California 25 years ago, TED has grown to support those world-changing ideas with multiple initiatives. The annual TED Conference invites the world’s leading thinkers and doers to speak for 18 minutes. Their talks are then made available, free, at TED.com. TED speakers have included Bill Gates, Al Gore, Jane Goodall, Elizabeth Gilbert, Sir Richard Branson, Nandan Nilekani, Philippe Starck, Ngozi Okonjo-Iweala, Isabel Allende and UK Prime Minister Gordon Brown. The annual TED Conference takes place in Long Beach, California, with simulcast in Palm Springs; TEDGlobal is held each year in Oxford, UK. TED’s media initiatives include TED.com, where new TEDTalks are posted daily, and the Open Translation Project, which provides subtitles and interactive transcripts as well as the ability for any TEDTalk to be translated by volunteers worldwide. TED has established the annual TED Prize, where exceptional individuals with a wish to change the world are given the opportunity to put their wishes into action; TEDx, which offers individuals or groups a way to host local, self-organized events around the world; and the TEDFellows program, helping world-changing innovators from around the globe to become part of the TED community and, with its help, amplify the impact of their remarkable projects and activities.
Follow TED on Twitter at twitter.com/TEDTalks, or on Facebook at facebook.com/TED.
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Increases in energy efficiency are an often-forgotten component of our shift to clean energy and reduced carbon emissions. Higher prices triggered by the 1973 oil embargo caused America to drastically change how it used energy. The ensuing gains in efficiency had more of an impact on America’s energy consumption than all of the growth in solar, wind, geothermal, natural gas and nuclear energy combined.
For more information, pick up a copy of “Energy Efficiency: Building a Clean, Secure Economy” by James L. Sweeney. Available here – http://hvr.co/EnergyEfficiency.
For additional information and related resources, please visit https://www.policyed.org/intellections/increased-efficiency.
