What should you think about when deciding where to put your building? The direction a building faces will impact on a lot more than the view – how do you.

Slides:



Advertisements
Similar presentations
Understanding Weather and Climate
Advertisements

Solar House Project APES 2014.
The Three Tiered Philosophy
 Building should be positioned to maximize desirable features and minimize negative aspects ◦ Energy Orientation ◦ Solar Orientation ◦ Room/Outdoor Area.
Landscaping to Help Conserve Energy Master Gardener Volunteers Training.
Utilization And Removal Of Heat Present Inside The House By Different Means Made By : Puneet Gupta Roll Number: 04HARBISO0906 School : Bright Scholar Senior.
Passive House Seminar for Professionals from the Building Sector.
Passive Heating and Cooling
Chapter 3. Why the Earth has seasons  Earth revolves in elliptical path around sun every 365 days.  Earth rotates counterclockwise or eastward every.
Choosing building materials Can I reduce the environmental impact of my building by choosing materials carefully? copper Plastic (click for more)click.
By Emmi Miller and Jenny Sulouff
Passive Heating. Uses the energy from the sun to keep occupants comfortable without the use of mechanical systems.
Walls. Apply knowledge of thermal mass and insulation with passive design strategies to reduce the energy needed by active systems.
 On average, home heating uses more energy than any other system in a home  About 45% of total energy use  More than half of homes use natural gas.
Smart energy in Europe. Heat losses and gains Termografhy of a building.
Passive Solar House A passive solar house is heated by the sun’s energy.
P1a 1.5 Heat transfer by design. Lesson Objectives To investigate factors that affect the rate of thermal energy transfer. To describe how thermal energy.
Building Orientation.
PASSIVE SOLAR DESIGN. Design Techniques
Solar energy But electrons don’t like to be in these higher energy states, so they will emit energy in the form of a photon to drop to a lower energy level.
Conservation and Environmental Design and Construction
Cost effectiveness Assume a $5000 system Pays itself off in 27 years if replacing a natural gas or oil hot water heating system 14 years if replacing or.
Why Buy It? Buying this house will show you the amount of money you could have in your wallet. Located in Boise, Idaho, it has an outstanding view of.
Drill: How many times would an average car’s tires turn during a drive from downtown Baltimore to downtown Washington, DC? [What would you need to know?
Chris mccain Wayne biddy. The sun is a medium sized star that radiates energy from nuclear fusion reactions in its core. The small fraction of energy.
EARTH’S CLIMATE. Latitude – distance north or south of equator Elevation – height above sea level Topography – features on land Water Bodies – lakes and.
Heating Systems.
Class #2: Seasonal and daily variations in temperature
Chapter 6: Thermal Energy
 On average, home heating uses more energy than any other system in a home  About 45% of total energy use  More than half of homes use natural gas.
Heat Migration in the Home 1 Energy Analysis and Comfort Solutions, Inc. Understanding Heat Migration in Your Home.
How Switched On Are You? HEAT Radiation Reflection Absorption
CGR4M: The Environment and Resource Management 1 Climate Controls Factors that influence climate.
3. ORIENTATION  Building Shape  Ideal Elevations  Landscaping.
9. THERMAL MASS  Thermal mass is a measure of a material's capacity to absorb heating or cooling energy. Materials such as concrete or bricks are highly.
© Oxford University Press 2011 IP1.9.5 Solar panels and payback time: Overview Solar panels and payback time: Overview.
 On average, home heating uses more energy than any other system in a home  About 45% of total energy use  More than half of homes use natural gas.
Chapter 2. The Greenhouse Effect The Earth’s atmosphere is compared to the glass walls and roof of a greenhouse –Traps the sun’s warmth for growing plants.
A New Language Shining the Light on Passive Solar Features and Retrofit Possibilities.
Some Pointers for your assignment..  Passive solar heating is defined as using solar energy incident on windows, skylights, greenhouses, clerestories,
Solar Energy Home Tour A preview to our local field trip.
Earth’s climate and how it changes
Lauren Stencel Chapter 16
Air. What’s in air? The atmosphere is made up mostly of nitrogen gas. Oxygen makes up a little more than 20% of the atmosphere. Air Composition.
Active Solar heating Used for space and or water heating
Passive Solar Makes use of natural solar heating Requires buildings be designed to maximize the suns heating Most important element: face south (toward.
How much makes it through the atmosphere. Why a seasonal variation? First, why do we have seasons? Earth’s axis is tilted 23.5° to the plane of its orbit.
Solar Gain The ultimate free lunch!. Some Basics Why do we need to heat our homes? –Living rooms21 o C –Bedrooms18 o C –Staircases & halls16 o C.
Solar Energy SOLAR ENERGY A FEW FACTS Every day the earth receives thousands of times more energy from the sun than is consumed in all other resources.
GCSE ENERGY; THERMAL ENERGY TRANSFER 2
Passive Solar Construction The history and the principles.
PASSIVE SOLAR DESIGN ALTERNATIVE ENEGRY SOURCES.
AN-NAJAH NATIONAL UNIVERSITY BUILDING DEPARTMENT
Passive Solar Design Elements
Passive Solar Energy By: David Jung.
Heat.
GREEN BUILDING MODEL Prashant Motwani (13MST0021)
Passive Solar system BY: MD.RUMAN 11131AA010.
Achieving Energy Sustainability
Bell work Predict whether leaving the refrigerator door open on a hot summer day will help to cool the kitchen.
Natural Sciences Grade 7
BUILDING SCIENCE-1 TOPIC- ROLE OF WARM AND HUMID CLIMATE
HOT AND DRY CLIMATE.
What is a Passive Solar House?
BUILDING SCIENCE- 1 TOPIC- TR0PICAL UPLAND CLIMATE
Passive Solar passive solar
Review for Quiz Friday 9/14.
Presentation transcript:

What should you think about when deciding where to put your building? The direction a building faces will impact on a lot more than the view – how do you decide the best orientation? Choosing the place and which way to face

Good design uses natural features such as slopes or vegetation to shelter buildings from the wind and maximise solar gains. A significant reduction in heat loss can be achieved through properly planned siting. Early planning will need to consider where and how a building is located. There are several angles to consider when answering the question – where shall I put it? Being located on a south facing slope with large amounts of glazing results in solar gain. Location, location, location.For more info go to bldgs- siting_and_orient ation.htmbldgs- siting_and_orient ation.htm is the land you plan to use in a rural or urban setting? is it a brown or green field site? whats the local micro-climate like? are there any special ecological features that should be safeguarded before, during or after construction? will your building and landscaping add value to the site? is the building oriented to maximise potential solar gains and minimise exposure?

The shape and size of a building influences heat transfer. Compact buildings that have a small ratio of surface area to volume will loose less heat. Apartments also benefit from sharing warmth with adjacent properties compared with detached houses. Form and shelter How can you protect a building from: wind rain sun temperature variations

The suns rays can warm a building: glazing on the south side of buildings will increase this solar gain. The sun is higher in the sky in the summer, large over hangs reduce heat gains in summer but allow solar gain in winter. Gaining from solar rays Attached sun spaces trap heat from the sun. Direct and indirect energy transfer provides heat to the adjacent building. Hockerton Housing Project At Hockerton Housing glazed verandahs gain heat from the suns rays. The floor and walls then heat the rest of the building. In the winter such buffer zones separate the cold outside and the warm inside.

How can thermal mass be used to save energy? Thermal mass is the ability of a material to absorb heat energy. A lot of heat energy is required to change the temperature of high density materials like compacted earth, concrete, bricks and tiles. They have a high thermal mass. Lightweight materials such as timber have a low thermal mass. Winter Allow thermal mass to absorb heat during the day from direct sunlight or from radiant heaters. It will re- radiate this warmth back into the home throughout the night. Summer Allow cool night breezes, convection currents, to pass over the warm thermal mass, drawing out all the stored energy. During the day protect thermal mass from excess summer sun with shading and insulation if required. Massive gains The thermal mass of building components like floors, walls and roofs can be designed to capture energy when it is plentiful (or excessive), store it and release it later. This rammed earth wall at CAT warms up when the sun hits it. At night, or when the temperature decreases, the heat stored in the wall is released keeping the building temperature more constant and reducing the heating demand.

Check…… In which direction should your building face? How can your building be sited to minimise heat loss? How can your building be sited to maximise use of heat from the sun (solar gain)? How can your building be sited to utilise natural elements so its warm when you want it to be warm (e.g. winter, evening, night) and cool when you want it to be cool (e.g. summer, daytime)? Can you make use of existing natural features of your chosen site (e.g. re-using materials, vegetation for shade, earth for wind protection, slopes for solar gain)? Can you site it so it doesnt create problems (e.g. visibility, sun loss) for other buildings or so that other buildings dont create similar problems for yours?

Why…… do you think this house has been orientated in this direction? are the solar panels positioned where they are? are the windows very different sizes? is there a porch? Have a look at if youre not sure of the answers.

Work it out – design abacus