The document proposes installing hair styling devices in vehicles that use the engine's wasted heat. It suggests including a hair dryer, flat iron, and curling iron accessible to passengers. The devices would operate without electricity by using the vehicle's exhaust air heated by the engine. This would allow passengers to productively use time spent in traffic and reduce energy use at home. The proposal estimates strong demand, forecasting sales of over 70,000 devices per year in São Paulo alone within two years. It identifies automakers and hair tool manufacturers as potential suppliers.

1. Engine Heat Recovery
Making a better use of time wasted in traffic
Julio Barros
Chemical Engineer-Unicamp-Brazil

2. Observed Facts:
• Time wasted in traffic: continuous grown in big cities
-> Idle passenger time
• In São Paulo city, Brasil, average 2h42’/day (Ibope, 2010)
• Only in São Paulo city, Brasil-> 1500 brand new cars/day
• Women’s opinion is decisive when choosing the new
vehicle. Also, they’re responsible for 42% of total new
vehicles aquisitions.
• For 88% of women, hair is essencial for personal and
profession satisfaction.
• Hair Production demands long times.

3. Proposal:
Hair Beauty devices adapted into vehicles, making use of engine and
exhaust duct wasted heat.
• Hair Dryer
• Flat Hair Iron
• Curly Hair Iron
(Baby liss)

4. Actual devices:
Ordinary device’s operation sold today, all of those feed by electricity:
Hair Dryer, blow heated air aprox 115 C/239 F
Average device power: 1800 W

5. Actual devices:
Ordinary device’s operation sold today, all of those feed by electricity:
Flat Hair Iron:
Heated end (metalic or ceramic): 180 C/356 F
Average device power: 65W

6. Actual devices:
Ordinary device’s operation sold today, all of those feed by electricity:
Curly Hair Iron (Baby-liss)
Heated end (metalic or ceramic): 180 C/356 F
Average device power: 55W

7. Product Sugestion:
Present parts in
nowadays cars.
(catalitic converter not
shown):

8. Product Sugestion:
New possibily
needed parts (in
accordance with
Temperature sensor
the product
sugestion)
Dedicated Batteries
By-pass
Plug-in outlet
On-demmand electrical heating
Heat Exchanger n 2:
after-use air exchanges Heat Exchanger n 1:
with virgin air Exchanges heat with
exhaust duct

9. Product Sugestion:
Hair DryerSecador
de cabelos
External Air Inlet

10. Product Sugestion:
Flat Hair Iron
Air Outlet
Air Inlet

11. Sugestão de produto
Curly Hair Iron
Air Outlet
Air Inlet

12. Operation:
Hair Dryer:
Without electrical
power limit, can
deliver more thermal
power then the
ordinary electric hair
dryer, making it the
favorite.
Just transport heated air
to the desired location.
No internal electrical
resistance. Fan is onboard the
vehicle -> silenced operation,
no electric chock risk.

13. Operation:
Flat Hair Iron Only transports
(Baby liss): heated air. No
electrical resistance,
doesn’t get burn if
someone accidentally
forget to turn it off.

14. Operation:
Curly Hair Iron:

15. Product Suggestion:
Accessible for all passengers.

16. Product Suggestion:
Sun visors turns into a vertical mirror:

17. Useful moments and places

18. Useful moments and places:
Child on rain:
-> cold/flu

19. Useful moments and places:
Taxi
Long distance
buses.

20. Useful moments and places:
• Make use of time wasted in traffic
• People who live far away from work
• After shower in the gym, make hair production on-the-go
• Morning shower without having to dry out at home
• Last minute accidents (water spilled from window, drizzle, etc)
• Child that took rain
• Taxi
• Long distance buses
• Make possible having the hair washed with a higher frequency
• Recovering part of delayed time – professional or personal

21. Advantages
• Give possibility for a better use of time (time is luxury)
• Make possible to last minute hair style fix, being aways in
the desired look.
• Make possible to get the hair hashed more frequentily.
• The electrical resistance will hardly ever get wasted – there’s no
need for periodic change.
• The heating mechanism is central, mounted in the vehicle, not into
the tail device. No risk of electric chock.
• Home energy saving – avoid the use of electricity at home.
• Reuses wasted thermal energy - Ecological
Sustainable product

22. Foreseen:
• In São Paulo city, 1500 brand new cars, every day
• Women represent 42% of this market - 630 cars/day
• In launch : 2% of this share= 13 cars/day= 378/month
• In 6 months, 4%: 756 cars/month
• In 12 months, 9%: 1700 cars/month
• In 18 months, 17%, 3213 cars/month
• In 2 years, 32%: 6048 cars/month (72k/ano)

23. Foreseen
• Nacional demand, in 24 months: 170 k/year
• (base year: 2009: 3.18 mi cars/year)
(Higher demand from customers that live in big urban centers with high traffic jam index)
*Without correction of 1500 new cars/day
**32% = share of women that take confort as a must-have item
when choosing the vehicle.
***Forecast only for São Paulo city, Brazil.
****Foreseen that only women would buy the accessory.
*****Without considering retrofit in existing vehicles.

24. Suplliers
• Automakers: engineering
• Hair Dryer, Flat and Curly hair iron: existing brands can make ajustments in their products
and increase their portfolio. Final product would bring the automaker logo.
• Heat recovery: heat exchanger, thermal insulation air transport ducts, temperature
sensors, electrical resistance, system control (control valves acting as a funciont ot the
gas temperature).
• All new parts already have supplies for automarkers. If there isn’t the exact product, a
simple adaptation would do.

25. Thank you.
Julio Barros
julioafb@yahoo.com.br
twitter.com/jwaally