[Fwd: [pvusers] Re: heat pump dryer] [RE-wrenches]

[paul wilkins]

Cor van de Water wrote:
> 
> Hi Bob,
> 
> I am glad to give you more info on the heat-pump clothes dryer.
> 
> A heat pump drier is a regular electric clothes dryer, condensing type.
> (which means that it is not necessary to have a venting channel, because
> it removes the moist from the air before returning it into the room
> where the device is located)
> The small manufacturer, producing this device, takes a drier off a
> regular Whirlpool production line and adds their own-developed heat-pump.
> Because this is contained inside the machine and uses the regular controls,
> it is hardly noticeable that it is such an advanced machine.
> It perfectly blends in with my Whirlpool washing machine, which was a
> surprise after my purchase. I did not select either of the machines for
> their appearance.
> 
> The only difference with regular dryers is in the heating, it is not a
> heater element which is burning away electric energy to make the air
> inside the dryer reach 50 degrees centigrade. Instead, it is a heat pump
> which pumps heat energy from the outlet air into the inlet air.
> Also the heat generated by the pump itself in its operation is added
> to the inlet air.
> Result is a reduction of the amount of energy needed, as it takes much
> less energy to pump heat than to generate it by burning electricity in
> a heater element.
> This way, it takes 1.5 kWh for a dry cycle instead of 4 - 5 kWh with a
> heater element.
> 
> The 3 kWh saved, times 200 cycles per year times 15 years operation is
> 9000 kWh saved, approximately $900 at Dutch electricity prices.
> This means that the $1000 investment of purchasing this device is earned
> back, even at grid electricity price.
> 
> Not to mention the effect from the avoided generation of electricity on
> the environment, which is hard to quantify....
> 
> Hope this gives the info you needed.
> If not, let me know!
> 
> Kind regards,
> Cor
> The Netherlands
> http://start.at/solar
> 
> > I'm not familiar with heat pump dryers you mentioned on pvusers. Can
> > you tell me a little bit about it?
> >
> > Bob Galbreath
> > Los Angeles
>  ______________________________________________________________
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