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PASSIVE SOLAR BUILDINGS

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Active solar technologies are employed to converts into solar energy another more useful form of energy. This would normally be a conversion to heat or electrical energy. – PowerPoint PPT presentation

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Title: PASSIVE SOLAR BUILDINGS


1
PASSIVE SOLAR BUILDINGS
2
INTRODUCTION
3
WHAT IS PASSIVE SOLAR BULIDING?
  • A passive solar home means a comfortable home
    that gets at least part of its heating, cooling,
    and lighting energy from the sun.

4
HOW TO MAKE A PASSIVE SOLAR BUILDING
  • It is designed to use the energy of sun. Its
    material and building works together to create
    energy.
  • THINGS WE NEEDED-
  • Large windows
  • Solid wall
  • Water
  • Fans
  • Overhangs.

5
PASSIVE SOLAR BUILDING IDEAS
  • APERTURE Large window expansion that allows sun
    energy, it faced south, made improvements in more
    low cost.
  • THERMAL MASS It is a construction material which
    stores or collect energy from sun.
  • INSULATION Once power of the sun is collected,
    it should not be waste. So, it eliminates the air
    leak around the building.
  • DISTRIBUTION Helps to circulate the stored
    solar energy when needed.

6
BENEFITS OF PASSIVE SOLAR BUILDING
  • INVESTMENT Independent from future fuel cost,
    save money long after initial cost recovery.
  • VALUE High owner satisfaction and resale value.
  • MAINTENANCE Reduced operation and repair.
  • COMFORT No operating noise, act as warmer and
    cooler according to the climate(even in power
    failure).

7
WHY PASSIVE SOLAR BULIDING NECESSARY?
  • Passive solar design save energy by maximizing
    the homes natural heating.
  • Passive solar building design very important role
    in reducing the greenhouse emissions in our
    society.
  • Creating passive solar building to save energy
    which voluntary comply with openings are also
    important compliments to passive heating
    cooling.

8
DIFFERENCES FROM ORDINARY BUILDING PASSIVE
SOLAR BUILDING
  • Passive solar building designThese standards are
    much higher then houses built to most normal
    building.
  • About 15 space heating in an ordinary home comes
    from solar energy passive solar houses are
    designed to let heat into the building during the
    wintersimple huge difference in comfort
  • The building it self server as solar collector
    storage device where as ordinary building not
    like that.

9
FEATURES OF PASSIVE SOLAR BUILDING
  • It uses the basic design to trap heat when
    needed.
  • So, it keep the house cool in summer and hot in
    winter.
  • It picks up lot of free heat in winter from
    sunlight(contains about a kW of heat).

10
ACTIVE SOLAR
  • Active solar technologies are employed to
    converts into solar energy another more useful
    form of energy.
  • This would normally be a conversion to heat or
    electrical energy.
  • Active solar uses electrical or mechanical
    equipment for this conversion.
  • Passive solar relies on the inherent
    thermo-dynamic properties of the system or
    materials to operate.
  • They do not need external energy source.

11
ENERGY-PLUS-HOUSE
  • An energy-plus-house produces more energy from
    renewable energy sources, over the course of a
    year, than it imports from external sources.
  • This is achieved using a combination of micro
    generation technology and low-energy building
    techniques, such as passive solar building
    design and careful site selection and placement.
  • A reduction of modern conveniences can also
    contribute to energy savings, however many
    energy-plus houses are almost indistinguishable
    from a traditional home, preferring instead to
    use highly energy-efficient appliances, fixtures,
    etc., throughout the house

12
ZERO ENERGY BUILDING
  • A zero-energy building(ZEB) or net energy (ZNE)
    building general term applied a building with
    zero net energy (ZNE) consumption and zero carbon
    emission annually.
  • Reduce carbon emissions and reduce dependence on
    fossil fuels
  • zero energy buildings remain uncommon even in
    developed countries, they are gaining importance
    and popularity.

13
DEVELOPMENT OF ZERO ENERGY BUILDING (ZEB)
  • No ZEB regulations or standards
  • Existing Energy Conservation Program
  • Existing Green Building Label System

14
EFFICIENCY AND SOLAR ZEB
  • First efficiency,
  • then solar
  • Together, they can
  • make a big difference.
  • Super-efficient solar
  • Zero Energy Building.

15
WHY NET ZERO IS IMPORTEN
  • Buildings are the Largest Energy Consumer in the
    U.S. 40 of primary energy, 72 of electricity,
    55 of natural gas.

16
WHAT ARE THE ADVANDAGES OF GOING ZERO ENERGY
  • Money Savings (gt1,000s/year)
  • Greater comfort.
  • Better quality of life, more free time, more
    money.
  • Less use, Less maintenance.
  • Longer lasting heating and cooling equipment.

17
ADVANCING NET-ZERO ENERGY COMMERCIAL BUILDINGS
  • In the United States, buildings account for
    almost 40 of primary energy use and greenhouse
    gas emissions.
  • Energy use will help address climate change and
    extend the life of our national resources.
  • Has set a goal to achieve cost-effective,
    net-zero energy commercial buildings in all U.S.
    climate zones by 2020.
  • Renewable Energy Laboratory (NREL) leads the way
    in net-zero energy building (NZEB) innovation.

18
SUMMARY
  • Can achieve zero energy home now
  • Design for efficiency and solar up-front.
  • Super high level of energy efficiency.
  • Encourage conservation of residents.
  • Choose solar thermal for water and pool heating.
  • Use small PV systems of 4kW or so (this is still
    not cost effective at present electric rates
    without subsidies).
  • Consider some PV on West side to reduce utility
    peak.
  • Watch your meter spin backwards!!!!!

19
MY NET-ZERO ENERGY HOUSE(ALSO ZERO EMISSION
HOUSE)
  • This house will save a projected 165,000 in fuel
    and energy cost.
  • Over the next 20 years.

20
NEXT GENERATION ZERO ENERGY RESEARCH HOME
21
CONCLUSION
  • We are saw about how to
  • save energy.
  • In this way we are follow
  • to reduce usage of
  • electricity.
  • It will be help us and also
  • our Future generation.
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