'Vacuum' technology tumble dryer from Morus

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'Vacuum' technology tumble dryer from Morus

#1  Postby Papa Smurf » May 16, 2019 3:38 pm

https://www.morustech.com/
https://www.kickstarter.com/projects/mo ... -dryer-for

Seems pretty clever, reduce air pressure inside so that the boiling point of water drops to 100°F /37°C.

If they made this in a regular sized version with bigger capacity I'd be very interested, if it works as well as they claim. This 'portable' version, not so much.
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Re: 'Vacuum' technology tumble dryer from Morus

#2  Postby felltoearth » May 16, 2019 5:25 pm

Drying capacity is 3.3 lbs. The demo shirt they weighed is about a pound. Three shirts at a time? Kinda useless. Maybe ok for a single Person I guess. Definitely saves space. I’m also suspect of the price point. You can’t buy a Dyson fan for that price.
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Re: 'Vacuum' technology tumble dryer from Morus

#3  Postby GrahamH » May 16, 2019 9:20 pm

It's not new technology.
https://en.wikipedia.org/wiki/Vacuum_drying

Rather like Dyson applied well established principles of cyclone dust separation to domestic vacuum cleaners.
Why do you think that?
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Re: 'Vacuum' technology tumble dryer from Morus

#4  Postby Macdoc » May 17, 2019 1:39 am

if that 3 lb is a dry weight then more like 5-6 shirts or a mix of smaller clothes. I'd say for a single person it's a neat device. I wear nearly entirely synthetics for riding and rarely wash jeans ( easy to dry on a rack I have in the bathroom )

Weight, kg. Pants, 0.8. Jeans, 1.7. T-shirt, 0.25. Shirt, 0.35. Shorts, 0.5. Underpants, 0.3. Socks, 0.15.

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Re: 'Vacuum' technology tumble dryer from Morus

#5  Postby GrahamH » May 20, 2019 9:45 am

The claims for efficiency may be overstated.
I guess it works to remove water from the air but you still need to put the heat energy in to evaporate the water in the clothes.
What the vacuum does, and presumably the reason for using the technique in industrial processes, is that the energy going in doesn't produce high temperatures. One example of data on an industrial vacuum drier describes a microwave system providing heat energy and product temperatures not exceeding 11 °C.




The Morus Kickstarter makes no mention of a heater but it does seem that evaporative cooling would cause water in the machine to freeze unless there is a significant heat input.
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