This document summarizes a student's TRIZ competition project on reducing household energy usage. It identifies that rising energy prices and use of electric appliances increases costs of living. The project aims to solve this problem by decreasing costs and environmental impacts by using less energy generation. The problem is defined as reducing power usage without much cost. Root causes are identified as heat loss from air conditioning, dim rooms, and clutter. TRIZ tools are applied to generate solutions like changing wall colors to increase reflectance and reduce illumination needs, rearranging household goods to allow freer air movement, and using thin films on windows to decrease heat transfer and reduce energy usage.

1. Part 1 (b) – household energy
usage
My TRIZ competition

2. The problem statement
The problem of energy usage face by each family
• Price increase in energy usage
• Electric appliances is necessary to maintain the
comfort of the house, hence, increase energy
usage
With theses problem introduced, cost of
living for each family increased.

3. Benefits
If the problem is solved:
• Cost of living decrease
• Minimise the burden of environment
Impact
If the problem is solved:
• Less energy generation, thus more
environmental friendly
• Quality of air are maintain

4. TRIZ process
Problem definition
Solution
implementation
Solution generation
Root cause
identification
Evaluation
Solve the problem?
No
Yes
Closed

5. Problem definition:
How to reduce the power usage without using
much money
Root cause :
Heat lost of air conditioning, dim rooms and
rooms too messy

6. TRIZ tool used an Solutions
Contradiction Worsening lost of energy
Improving volume of moving object 7, 15, 13, 16
Reduce heat transfer rate instead of reduce energy usage
Inventive principle 13 – The other way round
Inventive principle 7 – Nested doll
Rearrange the household goods, make way for air to move
freely
air

7. Contradiction Worsening lost of energy
Improving illumination intensity 32, 35, 1, 15
Inventive principle 32 – Colour changes
Change the colour of wall to a colour with higher reflectance.
Contradiction Worsening lost of
energy
Improving area of stationary
object
17, 7, 30
Inventive principle 30 – Flexible shell and thin films
Used of thin film to cober the windows (tinted windows) to
reduce heat transfer rate

8. Thank you !!