Friction heater running in my house

[lancaIV]

860 Watts is a lot of power, if you need to produce this
during wintertime via solarpanels and the sky is overcasts...

John Cletus Williams, GA : it is a kind of magic       
                                                         .... hope.....
                                        2000sqfts (~185sqm)  but only 400W ?

                            http://www.patentauction.com/patent.php?nb=8300

[cubalibre]

Dear Gabriel

Thank you for sharing you impressive heater and congrats for your machine.

Your new running video with heating up versus time would allow some rough calculations, if you could give
- the approx mass of the steel vessel in Kilogramm. Assumption: 20 kg
- the approx volume or mass of oil filled in. Assumption: 6 kg


Heating Power [W] = mp [kg/s] * cp [kJ/kg K] * dT [K]

With your data: Heating up from 70 F to 200 F in 24 min:

20kg / (24*60s) * 500 J/kg K * (200F - 70F)/1.8F/K = 500 W for heating up the steel vessel
6kg / (24*60s) * 2000J/kg K * (200F - 70F)/1.8F/K = 602 W for heating up the oil
additionally the surrounding is already heating up ...

Regards
cubalibre

[oilpiggy]

Dear Gabriel

Thank you for sharing you impressive heater and congrats for your machine.

Your new running video with heating up versus time would allow some rough calculations, if you could give
- the approx mass of the steel vessel in Kilogramm. Assumption: 20 kg
- the approx volume or mass of oil filled in. Assumption: 6 kg


Heating Power [W] = mp [kg/s] * cp [kJ/kg K] * dT [K]

With your data: Heating up from 70 F to 200 F in 24 min:

20kg / (24*60s) * 500 J/kg K * (200F - 70F)/1.8F/K = 500 W for heating up the steel vessel
6kg / (24*60s) * 2000J/kg K * (200F - 70F)/1.8F/K = 602 W for heating up the oil
additionally the surrounding is already heating up ...

Regards
cubalibre

Hello,

The oils weighs 5.21 Kilo

The motor weighs 9.07 Kilo

The core weighs 34.25 Kilo

Total of 48.53 Kilo

The heater rose from 70F to 200F in 23 min.
Thank you
Gabriel

[oilpiggy]

500W no load electric motor consume , 600W load electric motor consume :
the difference means heater consume as load ergo : 100W ,

this is your calculation,oilpiggy - or not ?

wmkr
         CdL

p.s.: oilpiggy wrote about 120sqm heating area and calculating with 20 ° temperature difference and conventional
        floor/wall/roof/window/door isolation I would estimate the heat energy consume with  10KW per hour
       
       source: http://www.sonnenkoenig.ch/halogenstrahler/asetid/824/product/junior.html 
       in red:"Waermebedarf" heat calculation

Hello,

Yes that was the old system.

[cubalibre]

Dear Gabriel

Now with your numbers:

Your new running video with heating up versus time allows some rough calculations:
- the approx mass of the steel vessel: 34.25 kg
- the approx mass of oil: 5.21 kg


Heating Power [W] = mp [kg/s] * cp [kJ/kg K] * dT [K]

With your data: Heating up from 70 F to 200 F in 23 min:

34.25kg / (23*60s) * 500 J/kg K * (200F - 70F)/1.8F/K = 896 W for heating up the steel vessel
5.21kg / (23*60s) * 1750J/kg K * (200F - 70F)/1.8F/K = 477 W for heating up the oil
additionally the surrounding is already heating up ...

Regards
cubalibre

http://answers.yahoo.com/question/index?qid=20110502212531AAFfzEu