TOYOTA BARISTA PROJECT?
TOYOTA BARISTA. A car company making coffee?
Here’s what happened.
Well, we suggest you have a cup of coffee and in the meantime we’ll explain this to you.
When you’re driving your car and step on the brakes, friction occurs giving off heat. Actually, that heat itself is a fine source of energy. But, in most cars that energy is not used any further, and that is a real waste.
With that in mind, Toyota has developed a way to recover the energy lost when the car decelerates, storing the regenerated energy in the battery. It’s called the “Kinetic Energy Recovery System”.
The name may make it sound difficult, but it is an incredible technology that is sure to lead the future of car manufacturing. To better understand its miraculous power, we wanted everyone to experience it in a more familiar situation, like having a cup of coffee. And that’s what the TOYOTA BARISTA PROJECT is all about. Sounds good, doesn’t it?
The idea was to take the energy wasted during braking and reuse it to accelerate the car again.
Through the harsh conditions of motor-racing, Toyota has improved the basic hybrid technology for greater capacity and higher efficiency.
We will introduce one aspect of this technology as we move backstage.
Special Morning Breakfast Plate
The climax of a race event. A plate of breakfast, prepared using the energy generated through braking or deceleration. One cup of coffee, half a slice of toast and one-third of a sunny-side up fried egg. The strange portion calls for an explanation.
You surely have heard of the 24 Hours of Le Mans before.
The energy recovered and reused in the Toyota race car when decelerating on that circuit amounted to 6,000,000 joules for each lap around the track! (The energy unit may sound somewhat unfamiliar.)
Energy that would have been wasted adds up to quite a large amount.
Reconnecting these 6,000,000 joules of energy with a familiar situation, it is actually the amount of energy needed to prepare the numbers of cups of coffee, slices of toast and fried eggs listed below.
Dividing it all up fairly among 171 people, each person gets one cup of coffee, half a slice of toast and a third of a sunny-side up fried egg. *4
Now is it clear?
- Our calculations:
- *1: One coffee siphon energy usage per second (with 80°C hot water): 350W=350 joules / time to make 3 cups of coffee: about 5 minutes / number of cups: 6,000,000 ÷ (350x300) x 3 = 171.4cups/lap
- *2: One toaster energy usage per second: 800W=800 joules / time to make 2 slices of toast: about 3 minutes / number of slices: 6,000,000 ÷ (800x180) x 2 = 83.3 slices/lap
- *3: One IH heating plate energy usage per second: 1300W / time to make one fried egg: about 1 minute and 20 seconds / number of fried eggs: 6,000,000 ÷ (1300x80) = 57.7 eggs/lap
- *4: The morning breakfast plate shown in the clip is based on the energy recovered in three laps of the Le Mans circuit.
*Note: the race car that appears in the video varies slightly from the actual race car.