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Ultra-low-energy consumption ultrasonic clothes dryer

energy.gov

1–10 of 192 posts

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#2
A bit puzzled why GE needs government funding to do research -- they make a lot of money already.

The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#3
> DOE’s Building Technologies Office is seeking new clothes dryer technologies that can increase the energy factor (EF) from 3.7 to 5.43 lb/kWh without increasing drying time by more than 20% over baseline units.

They're concentrating too much on kWh. One could use the same technology and focus on variable electricity pricing. I want a dryer that I turn at night, and it dynamically turns on-and-off as electricity rates go up and down. It ends at a smooth tumble in the morning so I can put on my day's clothes and fold the rest at it's lowest wrinkle-point.

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#4
post #2

A bit puzzled why GE needs government funding to do research -- they make a lot of money already. The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

And the longevity of your clothes.

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#5
post #2

A bit puzzled why GE needs government funding to do research -- they make a lot of money already. The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

Batteries don't last this long, why does a dryer have to? it's not all about longevity ...

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#6

> DOE’s Building Technologies Office is seeking new clothes dryer technologies that can increase the energy factor (EF) from 3.7 to 5.43 lb/kWh without increasing drying time by more than 20% over baseline units. They're concentrating too much on kWh. One could use the same technology and focus on variable electricity pricing. I want a dryer that I turn at night, and it dynamically turns on-and-off as electricity rat…

In Australia, that's very hard to achieve because the residential energy market is heavily regulated specifically to _avoid_ exposing low-end consumers to spot pricing.

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#8
post #5
post #2

A bit puzzled why GE needs government funding to do research -- they make a lot of money already. The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

Batteries don't last this long, why does a dryer have to? it's not all about longevity ...

What to batteries have to do with clothes dryers...? You're comparing a consumable good to a household appliance. Household appliances are expected to last 5 years. 7-10 is pretty normal.

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#9
post #5
post #2

A bit puzzled why GE needs government funding to do research -- they make a lot of money already. The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

Batteries don't last this long, why does a dryer have to? it's not all about longevity ...

[deleted]

Re: Ultra-low-energy consumption ultrasonic clothes dryer

#10
post #5
post #2

A bit puzzled why GE needs government funding to do research -- they make a lot of money already. The idea sounds pretty neat but I wonder about longevity of the piezeoelectric transducers. A clothes dryer needs to last at least 7-10 years, minimum. A resistive heating element is about as simple as you can get, and it's cheap to replace if it does burn out.

Batteries don't last this long, why does a dryer have to? it's not all about longevity ...

Because dryers are expensive appliances. If they're going to make one that only lasts one tenth as long, it better cost one tenth of the price too.
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