[dtmarketing]

We work for a coffee brand which uses 15 bars of pressure. For an event we are doing we are creating a mechanism that shows the consumer just how much 15 bars of pressure is.

However, we need to know how hard 15 bars of pressure actually is in order to simulate the feeling.

It’s a lever which is pulled downwards and the harder its pulled the more lights are lit up 1 – 15, we would like the machine to represent the pressure required i.e. 1 bar = 1 bar lit up.

To explain the pressure measurements to the client we would like to know what the equivalent of 15 bars of pressure would be in lamest terms. Such as 15 bar = 1 elephant leaning on the lever or could a small child could get to 15 bars easily?

I have tried to research online, although can't find anything other than scientific equivalents.

[KISS]

I'm thinking. It's about 218 PSI (pounds/sqin) or 15 atmospheres.

It's about 1.5 lbs/sqin over a 12" x 12" plate with a 218 lb man standing on it.

Note: Wrong answer above. 218 lbs/sq in * 144 sq in/sq ft is much bigger than 1.5. I divided rather than multiplied. That's why you should always include units.

[ebaines]

I'm thinking. It's about 218 PSI (pounds/sqin) or 15 atmospheres.

It's about 1.5 lbs/sqin over a 12" x 12" plate with a 218 lb man standing on it.

You're off by a factor of 144 - I believe you have confused pounds per square inch with pounds per square foot. 15 bars is indeed 15 atmospheres, which is about 218 pounds per square inch. So if you have a 1 square foot plate (12" x 12") you would need a weight of 218 * 144 = 31,400 pounds in order to get 218 PSI.

Dmarketing - you aren't going to be abe to simulate this directly on your customer without causing injury! I suggest instead of using a lever that applies pressure you simply use a humorous illustration. Using KISS's 1 square footplate idea, and given that an elephant typically weighs about 8 tons, you could make up a cartoon of 2 elephants balancing themselves on a 1 square foot plate.

[KISS]

Sure enough, my units don't work out. Yours do.