Passive solar energy buildings

PASSIVE SOLAR ENERGY BUILDINGS

THE ECONOMICAL FUTURE

PRESENTED BYM.VIGNESH WARANCIVIL,II YEAR

ABSTRACT• Passive solar energy is an excellent idea to heat,cool and

lightning the living room based on the structure of our

buildings.

• Passive solar energy is used to distribute heat or cool through

wise selection of building materials.

• Passive solar energy will provide inexpensive sustainable

alternatives for heating and cooling of home.

INTRODUCTIONPassive solar system is used to “collect, store and distribute

thermal energy”-by means of conduction, convection and radiation.

Decrease the amount of money that we spend on energy.

The exploitation and misuse of natural resources rapidly depleting

the Non-renewable energy resources.

Passive solar energy buildings considerably reduces the usage of

Non-renewable energy resources.

WIDE RANGE OF AVAILABILITY

Solar energy can be utilized in various ways-to provide

electricity, mechanical power, heat and lightning.

Solar benefits are utilized through windows and pumps,

and fans.

Renewable energy resource and it meets future obstacles

for scarcity of electricity.

NON-RENEWABLE ENERGY RESOURCES

coal-250yearsoil-44yearsnuclear fuel-23years

By analysing the pie-chart there is little possibilities for our sustainability to meet our future.

WHY PASSIVE?

Passive meets the minimum requirements.

Active produce the green house gases such as (CO2).

Active solar energy is expensive and more equipments are

need for installation.

PASSIVE SOLAR HEATING

Passive solar heating happens when sunlight strikes an

object and that object absorbs the heat.

Effective when the windows are oriented correctly,

Perfect orientation is south.

By installing high performance windows with insulated

frames, multiple glazing, low-e-coatings we may reduce

the heat loss by 50 to 75 percent.

PASSIVE COOLING

Buildings are designed to retain cooling and drew the heat

air away.

The shading device is fixed and this was achieved by

natural vegetation and using special glazing in windows.

The shading device can reduce solar gains up to 90%.

MATERIALS REQUIRED

Acrylic glasses or panels is enough to observe the

heat from the sunlight ,used as windows and doors

Normal concrete was just enough to make the

thermal mass, these are act as a absorber.

ACRYLIC PANEL AND THERMAL MASS CONCRETE

Acrylic panel Sunlight hits the concrete

CATEGORIES OF PASSIVE SOLAR ENERGY

Direct gain method

Indirect gain method

Isolated gain method

DIRECT GAIN

Direct gain method is the simplest method where the

space of the building is directly heated by sunlight.

INDIRECT GAIN

For indirect gain,sunlight is often received by a south facing wall,and as air moves internal space the heat moves through the living room.

ISOLATED GAIN

Isolated gain method contains solar collection,thermal storage that are separated from actual living space.

SOME OF THE PASSIVE SOLAR BUILDINGS

Building in USA with efficient shading and windows

Freiburg solar home

USAGE AMONG COUNTRIES

INDIA

AFRICA

BRAZIL

JAPA

N

KOREA

CHINA

SWIT

CHZERLAND0%

20%40%60%80%

USAGE

USAGE

ADVANTAGES

Mainly it provide perfect temperature and it is renewable

energy resource.

It’s cost of installation is lower than active solar energy

resources.

And it is eco friendly due to the eradication of green house

effect.

Less or zero usage of conventional equipments.

FUTURE TRENDS

The design of passive solar buildings based on the

materials are available today and will consistent for next

several decades.

Many obstacles due to over exploitation of non-

renewable resources may be eradicated by using this

energy.

CONCLUSION

Solar energy has been used for centuries and has only

improved with time, as scientists and researchers made it

into effective way of uses.

Passive solar energy is a very cost efficient way to take

steps towards sustainability.

The best creator next to god is a civil engineer

THANK YOU