Re: [Biofuel] satellite dish collectors
300 watts in a 1.5 litre reator is A LOT! I use 375 watts to heat 30 litres in my prototype batch reactor. Joe Ken Provost wrote: On Jun 25, 2006, at 10:51 PM, Jason Katie wrote: does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector? Pretty small -- 300 watts of insolation at best. Figure a typical small stove burner puts out 1000 watts at least. Now one of those early satellite dishes five feet in diameter would catch a LOT of rays -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
that was my hope. i didnt want to waste my time for less success than i needed. ill try it, and maybe if i can get a lathe for my birthday (riiight...) i will hammer together(probably buy) a little stirling to play with. Jason ICQ#: 154998177 MSN: [EMAIL PROTECTED] (most likely to get me) - Original Message - From: Joe Street [EMAIL PROTECTED] To: biofuel@sustainablelists.org Sent: Tuesday, June 27, 2006 8:40 AM Subject: Re: [Biofuel] satellite dish collectors 300 watts in a 1.5 litre reator is A LOT! I use 375 watts to heat 30 litres in my prototype batch reactor. Joe Ken Provost wrote: On Jun 25, 2006, at 10:51 PM, Jason Katie wrote: does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector? Pretty small -- 300 watts of insolation at best. Figure a typical small stove burner puts out 1000 watts at least. Now one of those early satellite dishes five feet in diameter would catch a LOT of rays -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date: 6/25/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.5/376 - Release Date: 6/26/2006 ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
On Jun 25, 2006, at 10:51 PM, Jason Katie wrote: does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector? Pretty small -- 300 watts of insolation at best. Figure a typical small stove burner puts out 1000 watts at least. Now one of those early satellite dishes five feet in diameter would catch a LOT of rays -K ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
Yeah, I'd go for a larger one -- more energy collection. I think the larger ones are also tracking? wherease the current generation satellit dishes are fixed.On 6/26/06, Ken Provost [EMAIL PROTECTED] wrote: On Jun 25, 2006, at 10:51 PM, Jason Katie wrote: does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector?Pretty small -- 300 watts of insolation at best. Figure a typical small stove burnerputs out 1000 watts at least. Now one ofthose early satellite dishes five feet in diameter would catcha LOT of rays-K___Biofuel mailing list Biofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
It may be of interest to do a search on low heat transfer generators. Also Solar ponds. This is where a very heavy brine is in the bottom layers of a square sided pond and very fresh water is on top, that is about a meter per layer. Under the brine layer is laid black alkathine pipes and black heat absorption material to transfer the heat to the tubes. A very effective solar collector of heat and no conversion as the heat is there. http://www.members.optusnet.com.au/~cliff.hignett/solar/ Was so easy to make and run but it needed more funding, guess what got in the way as with so many alternative fuels. The particular pond I was fleetingly associated with ran part of the vineyard at times. The heat exchanger on the ponds was a real marvel and for such large ponds was very small, could all but easily be carried by one person. I was to believe that the money was in the sale of the exchanger in the end not the ponds. However as time goes by and Israel and other countries that were developing such ponds might be back on line. Initially for generation of power the ponds were using a CFC, thus the low boiling point for equivalent in super steam power. As to heating systems, there is no reason why these ponds can not be used for heat generation using water with an anti freeze/lubricant as the basis. Doug - Original Message - From: Jason Katie [EMAIL PROTECTED] To: Biofuel@sustainablelists.org Sent: Monday, June 26, 2006 12:51 PM Subject: [Biofuel] satellite dish collectors does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector? i was thinking about using it to heat my BD via exchanger. (maybe borrow the steam pump with check valves idea...) i am going to try and layer it with tinfoil to begin with, then depending on wether or not that works i want to drop a hot water coil into my little BD reactor (1.5L) Jason ICQ#: 154998177 MSN: [EMAIL PROTECTED] (most likely to get me) -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date: 6/25/2006 ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ Information from NOD32 This message was checked by NOD32 Antivirus System for Linux Mail Servers. part000.txt - is OK http://www.eset.com Information from NOD32 This message was checked by NOD32 Antivirus System for Linux Mail Servers. part000.txt - is OK http://www.eset.com ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
Zeke Yewdall wrote: Yeah, I'd go for a larger one -- more energy collection. I think the larger ones are also tracking? wherease the current generation satellit dishes are fixed. Yeah, but they tracked the satellite, not the sun. Dwight ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
a little reprogramming of the tracking software should fix that, right?On 6/26/06, Dwight HoganCamp [EMAIL PROTECTED] wrote:Zeke Yewdall wrote: Yeah, I'd go for a larger one -- more energy collection.I think the larger ones are also tracking?wherease the current generation satellit dishes are fixed.Yeah, but they tracked the satellite, not the sun.Dwight___ Biofuel mailing listBiofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
Depends on the tracking unit. Most were setup and knew about where the sat should be located then used a AGC loop to to fine tracking. A easy sun tracker would do about the same using some photo diodes or small solar cells at 4 points on the dish wired to just balance the readings from opposing units. It is trivial to use a embedded setup to track the sun. Interfacing that to your tracker could be a issue. If you send me specs on what you have I would be happy to see what could be done. Zeke Yewdall wrote: a little reprogramming of the tracking software should fix that, right? On 6/26/06, *Dwight HoganCamp* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Zeke Yewdall wrote: Yeah, I'd go for a larger one -- more energy collection. I think the larger ones are also tracking? wherease the current generation satellit dishes are fixed. Yeah, but they tracked the satellite, not the sun. Dwight ___ Biofuel mailing list Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
I'm not sure exactly how the satelite dishes are set up mechanically. Solar tracking is easiest if you have a tilted NS axis, around which it can rotate. That way the tilt of the NS axis can be adjusted daily, but during the day, you only have to rotate about that axis from east to west, rather than controlling two motors throughout the day. The accuracy you need would vary depending on how tight of focus you were trying to get with the concentrator. On 6/26/06, Jeromie Reeves [EMAIL PROTECTED] wrote: Depends on the tracking unit. Most were setup and knew about where thesat should be located then used a AGCloop to to fine tracking. A easy sun tracker would do about the sameusing some photo diodes or small solar cells at 4 points on the dish wired to just balance the readings from opposingunits. It is trivial to use a embedded setup to trackthe sun. Interfacing that to your tracker could be a issue. If you sendme specs on what you have I would be happy to see what could be done.Zeke Yewdall wrote: a little reprogramming of the tracking software should fix that, right? On 6/26/06, *Dwight HoganCamp* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Zeke Yewdall wrote: Yeah, I'd go for a larger one -- more energy collection.I think the larger ones are also tracking?wherease the current generation satellit dishes are fixed. Yeah, but they tracked the satellite, not the sun. Dwight ___ Biofuel mailing list Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___Biofuel mailing listBiofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever:http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages):http://www.mail-archive.com/biofuel@sustainablelists.org/ ___Biofuel mailing listBiofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever:http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages):http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
Re: [Biofuel] satellite dish collectors
I got the tracking sensor for my 10' dish from Duane Johnson, his site is at http://www.redrok.com/main.htm You can read how to make your own, or do the lazy thing and just buy the ready-made module. It would have cost me as much to buy the parts as the ready made one he sells. Then it's just a matter of aligning the module with the dish, run 12-24 V (I think it is, I use 12)into the module, and use the outputs to run to the servo motor that pushes the dish around. And yes the dish will align differently for solar use than it did for satellites. North / south adjustments are done occasionally by hand to keep it within range throughout the year. doug swanson Zeke Yewdall wrote: I'm not sure exactly how the satelite dishes are set up mechanically. Solar tracking is easiest if you have a tilted NS axis, around which it can rotate. That way the tilt of the NS axis can be adjusted daily, but during the day, you only have to rotate about that axis from east to west, rather than controlling two motors throughout the day. The accuracy you need would vary depending on how tight of focus you were trying to get with the concentrator. On 6/26/06, *Jeromie Reeves* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Depends on the tracking unit. Most were setup and knew about where the sat should be located then used a AGC loop to to fine tracking. A easy sun tracker would do about the same using some photo diodes or small solar cells at 4 points on the dish wired to just balance the readings from opposing units. It is trivial to use a embedded setup to track the sun. Interfacing that to your tracker could be a issue. If you send me specs on what you have I would be happy to see what could be done. Zeke Yewdall wrote: a little reprogramming of the tracking software should fix that, right? On 6/26/06, *Dwight HoganCamp* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Zeke Yewdall wrote: Yeah, I'd go for a larger one -- more energy collection. I think the larger ones are also tracking? wherease the current generation satellit dishes are fixed. Yeah, but they tracked the satellite, not the sun. Dwight ___ Biofuel mailing list Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ -- Contentment comes not from having more, but from wanting less. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * This email is
Re: [Biofuel] satellite dish collectors
tracking is easy, even on 2 axes, but i was curious to know if it would be effective for an exchange heater. i have a dish, but was worried it wouldnt be of any use to me. JasonICQ#: 154998177MSN: [EMAIL PROTECTED] (most likely to get me) - Original Message - From: Zeke Yewdall To: biofuel@sustainablelists.org Sent: Monday, June 26, 2006 10:34 AM Subject: Re: [Biofuel] satellite dish collectors Yeah, I'd go for a larger one -- more energy collection. I think the larger ones are also tracking? wherease the current generation satellit dishes are fixed. On 6/26/06, Ken Provost [EMAIL PROTECTED] wrote: On Jun 25, 2006, at 10:51 PM, Jason Katie wrote: does anyone know if a regular 2'x1.5' satellite dish (primestar i think) will work for a solar collector?Pretty small -- 300 watts of insolation at best. Figure a typical small stove burnerputs out 1000 watts at least. Now one ofthose early satellite dishes five feet in diameter would catcha LOT of rays-K___Biofuel mailing list Biofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/ ___Biofuel mailing listBiofuel@sustainablelists.orghttp://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.orgBiofuel at Journey to Forever:http://journeytoforever.org/biofuel.htmlSearch the combined Biofuel and Biofuels-biz list archives (50,000 messages):http://www.mail-archive.com/biofuel@sustainablelists.org/ No virus found in this incoming message.Checked by AVG Free Edition.Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date: 6/25/2006 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date: 6/25/2006 ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
