Active and Passive cooling

1. ACTIVE AND
PASSIVE
COOLING
Submitted to: Ar.Kripa John
Sem-4 ,CE Submission
SAMYAK DASH
B.Arch , PPSU
SOA
20SA02AR013

2. DIFFERENT
TYPES OF
COOLING
TECHNIQUES:

3. ACTIVE COOLING


4. ACTIVE
COOLING
APPLIANCES:

5. PASSIVE COOLING
• Passive cooling means using design choices to reduce heat gain and increase heat loss.
• Buildings in all Australian climates require some form of cooling at some time of the year
to be comfortable. Passive cooling is especially useful in hot and humid or hot and dry
climates.
• Passive cooling can significantly increase your comfort and reduce your energy bills.
• It is best to use passive cooling design principles when building or buying a home. The
main thing to decide is whether you will include any air -conditioning. In some climates,
adding air-conditioning later may require fundamental changes to the home design.
• Many aspects of the principles (for example, shading, increased insulation, and window
design and placement) can be used in home renovations.
• The main methods to reduce heat gain are to include good insulation levels, and shade
windows and thermal mass in summer.
• The main methods to increase heat loss are to place and design openings to allow good
ventilation, add ceiling fans or whole -of-house fans, and ensure any air-conditioning
works well with building design and insulation. In climates with a temperature difference
of 6°C or more between day and night, thermal mass can also be used to cool a home.
• Landscape and garden design can also play an important role in passive cooling.

6. TECHNIQUES OF
PASSIVE
COOLING

7. PASSIVE HEATING AND
COOLING AT HOMES
 W ith passive cooling, building envelopes are designed to minimise daytime heat gain,
maximise night-time heat loss, and encourage cool breeze access when available.
Considerations include:
• designing the floor plan and building form to respond to local climate and site
• zoning living and sleeping areas appropriately for climate
• locating any air-conditioned rooms in thermally protected areas (i.e highly insulated,
shaded and well sealed).
• maximising convective ventilation with high -level windows and ceiling or roof space
vents
• designing ceilings and positioning furniture for optimum efficiency of fans, cool
breezes and convective ventilation.
 Cooling requirements are dictated by climate, so different approaches to passive
cooling are required for:
• hot humid climates ,where no heating is required
• temperate and warm climates ,where both heating and cooling are required
• cool and cold climates ,where heating needs are most important.

8.  LINKS
 https://www.yourhome.gov.au/passive-
design/passive-
cooling#:~:text=Passive%20cooling%20means%20u
sing%20design,or%20hot%20and%20dry%20climate
s
 https://www.housingforhealth.com/housing-
guide/active-cooling-of-
houses/#:~:text=An%20active%20cooling%20syste
m%20uses,of%20energy%2C%20water%20and%20
money

9. -THANKYOU-