Solar Energy - P.5 Biogas – P.10 Nuclear Power – P.15.

Slides:



Advertisements
Similar presentations
Where does our Energy come from?
Advertisements

ENERGY Where does our Energy come from?. Where does our energy come from for…? Electric light Mobile phones Power for your mp3 TV Hot Water.
Energy & Material Resources
Production and Distribution of Electrical Energy
Disadvantages Inefficient (only 30% efficiency).
Chapter 6 Resources and Our Environment BFRB Pages
What are some renewable energy resources?
Bellringer Classify each resource as renewable or nonrenewable: Oil
Energy Resources Noadswood Science, 2011.
Renewable and Non-renewable Energy Sources
Renewable and Nonrenewable Resources. Resources What we require to live Natural Resources – Resources we get from earth – Examples: Air, Soil, Minerals,
Non-renewable Power Resources: Nuclear Power
Notes: Geology Chapter 3
Chapter 12: Conserving Resources
Renewable and Nonrenewable Resources
Earth’s Resources Fill in your notes as we go!. Resources A supply that benefits humans – Example: water, land, air, ore etc. – Natural resources: the.
Energy Sources Chapter 9. Using Energy Where does our energy come from? How do we obtain our energy? What types of energy are available?
Electricity production Generally (except for solar cells) a turbine is turned, which turns a generator, which makes electricity.
Forms of Energy. Ability to do work or cause change Produces Warmth Produces Light Produces Sound Produces Movement Produces Growth Powers Technology.
Wind Energy – energy from the wind
Chapter 11: Energy Resources
Nonrenewable Resources
Energy Resources Nonrenewable.
Energy is the ability to cause change
Solar Energy and Nuclear Power
The law of conservation of Energy tells us that we can’t Get something for nothing, But we refuse to believe it.
Chapter 26 Energy Resources. Transfer of Solar Energy The energy that humans and The energy that humans and.
Biofuels Part 2 Methane and Waste Energy By Annie and Cyrus.
TOPIC: Energy AIM: How does the Earth supply us with Energy? DO NOW: Complete worksheet titled “Energy”
NONRENEWABLE AND RENEWABLE RESOURCES
How People Use Energy UNIT F CHAPTER 4 Ch 4 Lesson 1 Fossil Fuel Use Fossil fuels are fuels that formed from the remains of once-living organisms. They.
Natural Resources. FOSSIL FUELS –Take millions of years to form –Form from ancient decaying organic/living material –three types: coal (hydrocarbon rock)
Energy Sources for North Carolina. Fossil Fuels Coal, oil, and gas Formed from fossilized remains of prehistoric plants and animals Provides 95% of the.
1. HUNTER-GATHERER SOCIETIES HAD VERY LIMITED ENERGY REQUIREMENTS. THESE WERE MET USING WOOD (A RENEWABLE RESOURCE). 2. THE INDUSTRIAL REVOLUTION CHANGED.
Energy Resources Notes. Nonrenewable resources A natural resource that is not replaced as it is used May take millions of years to form Includes oil,
Alternative Resources
Energy Resources. What are Fossil Fuels? Fossil Fuels are energy rich substances formed from the remains of once living organisms. The 3 main fossil fuels.
Unit 4: Area of Study 2 Supplying and Using Energy.
Renewable & Non- renewable energy. Fossil Fuels 1.Name the main types of fossil fuels. 2.Explain briefly how they were made. 3.Why is there a problem.
11 November 2015 All Classes: Begin reviewing for your Ecology and Environment CUBA, Monday, November 23rd.
Energy The ability to do work or cause change Examples – kinetic or potential Non-example – matter, ideas Related Words – forms, sources, transfer, transformation.
Types of Energy Non-Renewable.
Where does energy come from? Where Energy Comes From How Magnets Produce Electricity
Today  Quiz  Notes (Only copy the pages with *)  Reading for homework- Due Wednesday.
BIOMASS ENERGY AND BIOGAS GENERATION Biomass is a renewable energy source that is derived from living or recently living organisms. Biomass includes.
Chapter 8: Energy Sources and the Environment
Renewable v. Nonrenewable Resources
Unit 2 Exam will be on Wednesday December 2 nd 2015!!
Warmup 2 AlBr 3 + ___  6 KBr + Al 2 ( SO 4 ) 3 Solve for the missing blank a. K 4 (SO 4 ) 2 b. 3 K 2 S 2 O 4 c. 2 K 2 SO 4 d. 3 K 2 SO 4 e. 3 KSO 4 Consider.
Non-Renewable Resources Use half a page to copy and complete the following table. MethodHow it worksAdvantages Disadvantages Oil - Oil is burned for heat.
ENERGY. Where Does the Energy Go? Friction is a force that oppose motion between two surfaces that are touching. For a roller coaster car to move, energy.
NONRENEWABLE AND RENEWABLE RESOURCES. NONRENEWABLE RESOURCES A nonrenewable resource is a natural resource that cannot be re-made or re-grown at a scale.
Changing different types of energy into electrical power.
NONRENEWABLE vs RENEWABLE Renewable energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain,
Biomass/Biofuel/Biogas
Where does our Energy come from?
Achieving Energy Independence Environmental Science 6.3.
Topic: Alternative Energy Resources PSSA: D / S8.D.1.1.
ALTERNATIVE ENERGY RESOURCES. ALTERNATIVE ENERGY SOURCES 1.Solar 2.Wind 3.Wave 4.Hydroelectric 5.Nuclear 6.Biofuels 7.Tidal 8.Geothermal.
Geothermal Energy – energy from the Earth 1.Cold water is pumped below the ground. 2.Hot rocks heat the water, turning it into steam. 3.The steam is used.
Alternative Energy.
Matthew Morgan, Joe Ledezma, Paige Asmo
Renewable and non-renewable energy sources
Energy Review 8th grade science.
Disadvantages Lots of wind turbines are needed to produce enough power. Turbines can only be put in windy areas. It is not always windy. Some people don’t.
Geothermal Energy – energy from the Earth
How do we use energy in our lives?
Energy Transfer & Resources
Presentation transcript:

Solar Energy - P.5 Biogas – P.10 Nuclear Power – P.15

Defining of Alternative fuels Any materials/substances can be used as a fuel Include Biodiesel Bioalcohol Eg:Ethanol, Butanol Batteries and Fuel cells etc. Hydrogen Non-fossil methane Non-fossil natural gas Vegetable oil Other biomass sources.

Renewable Energy A energy source amount that can be produced at a faster rate than our using rate For example, Solar energy and Nuclear energy are two different kinds of renewable energy

Importance of Renewable energy Unlimited supply Preventing energy resources deficiently Environmentally friendly

The most common renewable energy

Solar energy Technology of obtaining usable energy from the sun light Use lots of mirrors to reflect the rays onto a boiler then the water in the boiler heats up to become steam that turns the turbine Collect by solar panels Most common uses in daily Solar panels

Common uses Domestic use Supply heat or hot water Desalination of seawater Air-conditioning Generate electricity 1.Greenhouse energy supply 2.Solar energy calculating machine 3.Solar transportation Space explore An Earth observation satellite

International Solar Cities initiative Australia carry out this cause more than 4 city to be Solar City The first Europe solar factory Spain built it in Seville on 30 March,2007 Rising the sum of Solar energy California increase the maximum of generate solar energy

Pros & Cons of Solar energy Easy to collect Manifold Using No by-product Secure Expensive to build panels Seasonal Can’t work in dim light condition

Natural renewable energy

Biogas Refers to a gas produced by the 1.Anaerobic digestion 2.Fermentation of organic matter manure sewage sludge municipal solid waste biodegradable waste Containing Methane

Produce of Biogas Mainly production is anaerobic digestion for treating biodegradable waste Valuable fuel can be produced while destroying pathogens and reducing the volume of wastes Anaerobic digestion component

Methane Molecular formula CH 4 Not toxic Highly flammable May form explosive mixtures with air Greenhouse gas with a greater global warming potential than CO 2 Attractive fuel 1.Methane's relative abundance 2.Clean burning process CH 4 + 2O 2 → CO 2 + 2H 2 O

Pros & Cons of Biogas Reduce the volume of wastes Cheapest Just reuse wastes Dangerous Forms explosive mixtures Will cause global warming Methane is Greenhouse gas

The most dangerous alternative energy

Nuclear Power Nuclear power is energy released from the atomic nucleus Mainly uses Uranium-235 or Plutonium-239 A Controversial energy As of 2004,nuclear power provided 6.5% of the world's energy and 15.7% of the world's electricity

How to produce electricity!? 1.Nuclear fuels break down in a controlled way to generate Heat 2.The heat is used to boil water to steam 3.The steam drives the turbine 4.Turbine produces electricity Producing electricity

Common uses Mainly for generation of electricity Heavy-duty weapons use it for power source Additional, hydrogen production by generation of electricity Factory

Why Nuclear energy cannot replace fossil fuel? Expensive to construct & run a nuclear power station The purpose of petroleum is wider The required technique level is higher Safer for using fossil fuel 1.Accidents will destroy the environment 2.Effect the surrounding population’s health 3.The wastes are radioactive The waste heat of produce Nuclear power is difficult to reduce The Nuclear Fuel Cycle

Argument of using Nuclear power!? The accident of nuclear power station is serious Such as the Chernobyl disaster‏ May be controlled by careerist to develop nuclear weapon 1.nuclear warhead 2.nuclear-armed missile Environmental impacts of nuclear power are damaged by 1.Uranium mining which is radioactive effluent emission 2.waste heat.

Pros & Cons of nuclear power Can reduce global warming when produce a great amount of energy Very expensive The wastes are harmful Is serious that the nuclear plant have any accidents

The useful energy in future We think Biogas is the most suitable in future - Come from nature - Can be produced a lot by populations raising - Repayment is the greatest - Completely absorb the methane by technique arise - Area of wastes occupied will decrease

Disadvantage of develop alternative fuels Excess resources for testing and producing station Less range of uses than petroleum Efficiency is low Usually, need a lot of technology to support Some are dangerous to produce or Difficult to handle( Methane )

5B Group 7 |22| Chui Man Kit |31| Lui Ka Kit |32| Lui Tsz Shing |33| Mok Ho Lung |34| Sham Kong Sang