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Mailing List Archive
| Subject | Sender | Date |
|---|---|---|
| July 13th Meeting - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } The July 13th meeting was very interesting. Chris, Bryan, Victor, Brett, | Roy | Jul 14, 2008 |
Meetup details changed: The Solar Society August Meetup - I've updated this Meetup. For more details, see the full listing: http://alternativeenergy.meetu p.com/224/calendar/8333927/ When: August 10, 2008 1:00 PM Wh
|
Roy | Jul 14, 2008 |
|
Meetup details changed: The Solar Society July Meeting - I've updated this Meetup. For more details, see the full listing: http://alternativeenergy.meetup.com/224/calendar/8009670/ When: July 13, 2008 1:00 PM Wher
|
Roy | Jul 6, 2008 |
| Change of Plans - I will be staying here a month or two or three longer. My most likely return date now is Sept. 29. You guys seem to be doing fine without me. Roy is doing a good job as the admin. m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | Jul 2, 2008 |
| RE: [alternativeenergy-224] Meetup at Dave Info - Preview not available | Roy | Jun 25, 2008 |
| Re: [alternativeenergy-224] Meetup at Dave Info - The Solar Society is primarily about discussing ideas, but we are not opposed to commercial applications. This is not one of the groups where everyone is looking to make some money; I know some meetup groups are like that. m On Tue, Jun 24, 2008 | Mitchell | Jun 24, 2008 |
| RE: [alternativeenergy-224] Meetup at Dave Info - Preview not available | brett | Jun 24, 2008 |
| Meetup at Dave Info - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } Sorry I haven't responded to the emails, been very busy. The meeting at Dave's | Roy | Jun 22, 2008 |
| New Meeting: Meeting at Dave's - Announcing a new meeting for The Solar Society! What: Meeting at Dave's When: Sunday, June 22, 10:00 AM Where: Click the link below to find out! Who should come: Everyone interested in Solar Energy applications. | Roy | Jun 9, 2008 |
| Another Assitant Organizer - Roy Cho is now an assistant organizer. David Stahl continues to also hold that post. Roy & I talked a bit about group projects. In my opinion, it's not necessary to agree on a group project. The primary purpose of the group is social, to bring peo | Mitchell | Jun 9, 2008 |
| Welcome Brett! - On behalf of the other eight members, I would like to extend a hearty welcome to Brett, our newest member. Brett, I'm out of town for a while. David Stahl is the local organizer while I'm away. m | Mitchell | Jun 4, 2008 |
| Dave's address - Preview not available | Roy | May 31, 2008 |
| Re: A new member just joined The Solar Society! - This is cool! Two new members since I left town. :) Welcome Jeff! David Stahl is the organizer while I'm away. BTW, I will be back sooner than I had planned. I will see you guys at the first meeting in July. m On Thu, May 22, 2008 at 9:16 | Mitchell | May 22, 2008 |
| Welcome Chris - I'd like to welcome Chris Dingman, our newest member. His current main interest is wind power, but since solar energy is the driver of the wind, I would say that he is within our scope. m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | May 20, 2008 |
| RE: [alternativeenergy-224] Next Meeting and Current Information - Preview not available | Roy | May 19, 2008 |
| Next Meeting and Current Information - For new and potentially new members, the group is moving towards a first goal of a solar-thermal application. A first project is slated to be a solar powered ice maker. Solar-Thermal in this context refers to a concentration of light from a la | david | May 19, 2008 |
| Re: [alternativeenergy-224] Greetings from Canada - IMO, it should be built with a lot of concentration by use of a Freznel lens. It won't take long to heat up because it should have zero flow rate until it has heated up. The refrigeration will only work during the hours of good sunlight, maybe fro | Mitchell | May 19, 2008 |
| RE: [alternativeenergy-224] Greetings from Canada - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } But how long will it take to get it up to 160 and how many hours of sunlight yo | Roy | May 19, 2008 |
| Re: [alternativeenergy-224] Greetings from Canada - If you can get 160 degrees without concentration, then it won't take much concentration to reach 190. However, those figures are probably without any flow of the fluid being heated. If the fluid is flowing, then more power must be delivered to it to | Mitchell | May 19, 2008 |
| RE: [alternativeenergy-224] Greetings from Canada - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } I was looking thru the web and found a few info, I don't know if it will be hel | Roy | May 18, 2008 |
| Greetings from Canada - Hi guys. David Stahl is your local organizer now. m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | May 18, 2008 |
| Sunday go to Meeting :) - I'm looking forward to seeing you all again this Sunday. Among other things, we will talk about who will be the organize while I'm away. m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | May 8, 2008 |
| 3rd floor this time - We will meet in the 3rd floor meeting room this Sunday at 1. (Someone got the 2nd floor room ahead of us.) m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | May 5, 2008 |
| revised website - I've made revisions to the text on our meetup pages. There is also an announcement on tucson.craigslist.org It's under community:groups. It will help get more members if we make use of the meetup pages. There are several things each person can do | Mitchell | May 1, 2008 |
| RE: [alternativeenergy-224] Meeting Reminder - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } Since you will not be able to attend the meeting, maybe we'll send you a transc | Roy | Apr 26, 2008 |
|
Re: [alternativeenergy-224] Meeting Reminder - Roy [2008-04-25 22:07]:
> This was the article I was telling Mitchell about, has nothing to do with
> solar but was interesting :
>
> http://www.worldnetdaily.com/index.php?fa=PAGE.view&pageId=59402
Hi Roy,
The world
|
rex | Apr 26, 2008 |
| RE: [alternativeenergy-224] Meeting Reminder - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } This was the article I was telling Mitchell about, has nothing to do with solar | Roy | Apr 25, 2008 |
| Re: [alternativeenergy-224] Meeting Reminder - Mitchell [2008-04-24 13:28]: >Our first "official" meeting is in 3 days! It's Sunday, at 1:00 PM, >in the Main Library Downtown. It will be in one of the 2nd floor >meeting rooms. They have my name, Mitchell Timin. (although I | rex | Apr 25, 2008 |
| Re: Meeting Reminder - I forgot to mention where the library is, in case someone is new to Tucson. The address is 101 N. Stone, which is downtown, about a block north of congress, at Pennington. m On Thu, Apr 24, 2008 at 1:28 PM, Mitchell Timin wro | Mitchell | Apr 24, 2008 |
| Meeting Reminder - Our first "official" meeting is in 3 days! It's Sunday, at 1:00 PM, in the Main Library Downtown. It will be in one of the 2nd floor meeting rooms. They have my name, Mitchell Timin. (although I plan to call today and give them the Solar Society na | Mitchell | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - On Thu, Apr 24, 2008 at 12:33 PM, rex wrote: > Mitchell [2008-04-24 10:47]: > > > > > > The major problem that I see is how you get rid of the salt accumulation. > > > > Problem? You scrape it off and use i | Mitchell | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - Mitchell [2008-04-24 10:47]: > >The major problem that I see is how you get rid of the salt accumulation. Problem? You scrape it off and use it to season the bugs you have collected to eat. ;) -rex -- 90% of politicians gi | rex | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - Very good analysis! And I'm glad it verifies David's statement. The major problem that I see is how you get rid of the salt accumulation. m On Thu, Apr 24, 2008 at 10:38 AM, rex wrote: > Mitchell [2008-04 | Mitchell | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - Mitchell [2008-04-24 06:23]: >I thought David would answer this one, but anyway, his Solar Cooker >had a large Fresnel lens, about 3 ft by 4 ft focusing sunlight on a >grill. The grill had a shield around most of it. The thing wo | rex | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - I thought David would answer this one, but anyway, his Solar Cooker had a large Fresnel lens, about 3 ft by 4 ft focusing sunlight on a grill. The grill had a shield around most of it. The thing would start a piece of wood on fire in a few seconds. | Mitchell | Apr 24, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - sounds good Mitchell <[address removed]> wrote: Roy and I met David this past Saturday. David was exh | Felice | Apr 23, 2008 |
| Re: [alternativeenergy-224] Welcome to David, our Newest Member - Mitchell [2008-04-21 12:20]: >Roy and I met David this past Saturday. David was exhibiting his >Solar Cooker and a solar water distiller at the Earth Day Fair. So, how did they work? How much water/day? How big is it? The sur | rex | Apr 21, 2008 |
| Welcome to David, our Newest Member - Roy and I met David this past Saturday. David was exhibiting his Solar Cooker and a solar water distiller at the Earth Day Fair. m -- "Ask me about Earthchurch." http://earthchurch.net | Mitchell | Apr 21, 2008 |
| Re: [alternativeenergy-224] Meeting Place & Time Establishe - One principle is that we talk about any topic that someone wants to talk about. We can talk about what each person would like to do, and what they would like the club to do. We of course will introduce ourselves, so that everyone knows at least a | Mitchell | Apr 10, 2008 |
| RE: [alternativeenergy-224] The April 27 Meeting - sounds good. I will not be in town it appears for the next meeting. things should quiet down for me here shortly. thanks. felice Roy <[address removed]> wrote: | Felice | Apr 10, 2008 |
| RE: [alternativeenergy-224] Meeting Place & Time Established - Preview not available | Roy | Apr 10, 2008 |
| RE: [alternativeenergy-224] The April 27 Meeting - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } I think it would be interesting for everyone to learn solar from advancd to nov | Roy | Apr 10, 2008 |
|
Meeting details changed: The Solar Society April Meeting - I've updated this meeting. For more details, see the full listing: http://alternativeenergy.meetup.com/224/calendar/7503515/ When: Sunday, April 27, 2008 at 1:00 PM
|
Mitchell | Apr 8, 2008 |
| Meeting Place & Time Established - The Himmel Park Library is closing for renovations soon, and will not be open on the 27th. I made a reservation for us at the Main Library, downtown, at 101 N. Stone Ave. But it will be at 1:00 PM, because that's when they open. This is also called | Mitchell | Apr 8, 2008 |
| Re: [alternativeenergy-224] The April 27 Meeting - There are ways that you can participate, if you want to. For example, you could make the arrangements for us to meet at the Hillel Library community room. And you could contact manufactures of solar arrays in order to accumulate pricing and performan | Mitchell | Apr 8, 2008 |
| Re: [alternativeenergy-224] The April 27 Meeting - Hi there, Himmel is an excellent central location for me. I am afraid I have not been much if any help at all. My expertise is nothing like the correspondence i see going on between you and the other members. I am wondering if I have any | Felice | Apr 7, 2008 |
| RE: [alternativeenergy-224] The April 27 Meeting - Preview not available | Roy | Apr 7, 2008 |
| Re: [alternativeenergy-224] The April 27 Meeting - Preview not available | Mitchell | Apr 7, 2008 |
| RE: [alternativeenergy-224] The April 27 Meeting - Preview not available | Roy | Apr 7, 2008 |
| The April 27 Meeting - This will be our first "official" meeting, although Roy and I have already met a couple of times. The Himmel Park library has a public meeting room. That seems like a good spot, although I welcome other suggetions. Is there a volunteer who will m | Mitchell | Apr 7, 2008 |
| Re: [alternativeenergy-224] FW: Solar project - On Sat, Apr 5, 2008 at 9:32 PM, Roy wrote: > > Here is a note from a book: A Guide to the Photovoltaic Revolution > ... for silicon cells, the power output falls about 10% for each 25 degrees > centegrade rise in cell temperature | Mitchell | Apr 6, 2008 |
| FW: Solar project - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } | Roy | Apr 5, 2008 |
| FW: Solar Array calculation - .hmmessage P { margin:0px; padding:0px } body.hmmessage { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } | Roy | Apr 5, 2008 |
| possible use of mirror - It might be practical to increase the power from a solar array by the use of a mirror. Thinking about the common case of reducing air conditioning cost, a mirror could capture some late afternoon sunlight, when the radiation is low but the load is hig | Mitchell | Apr 5, 2008 |
| The 2nd meeting and Solar Concert - Attached are a couple of photos of a gadget that Roy built and brought to the meeting. This is a sensor circuit that can control a motorized platform to track the sun. At the bottom of the photos you can see a fin between two tiny light sensors. The | Mitchell | Mar 30, 2008 |
| Re: [alternativeenergy-224] Earth Hour - Challenging Ones Habits - sounds like a plan. thanks for the suggestion. Mitchell <[address removed]> wrote: It's good for your mind and spirit to deli | Felice | Mar 29, 2008 |
| Earth Hour - Challenging Ones Habits - It's good for your mind and spirit to deliberately challenge your habits from time to time. Why not turn the lights off from 8 to 9 PM tonight? It's not gonna save the planet but it might get the attention of a few million more people. Preferab | Mitchell | Mar 29, 2008 |
|
adhesive mirror film - There are many unused 8' and 10' satellite dishes that have the
potential to be converted to mirrors, either for photovoltaics, or
things like Stirling engines. Here's a film that might work for
the purpose:
http://www.acrosolarlasers.com/mirror.htm
|
rex | Mar 28, 2008 |
|
Fwd: MIT researchers predict solar cell improvent - http://www.physorg.com/news125842769.html
Researchers from MIT have improved commercial solar cells that will soon be
significantly cheaper and more efficient than those available today. Ely Sachs,
a professor of mechanical engineering at MIT, predic
|
Mitchell | Mar 28, 2008 |
| Re: [alternativeenergy-224] A 2nd meeting - Sure, stop by. If the concert begins at noon, as you said earlier, then we will be heading that way at about noon. m On Mon, Mar 24, 2008 at 8:26 PM, Felice wrote: > > I can do 12 pm in front of the library. That would work fo | Mitchell | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - I can do 12 pm in front of the library. That would work for me. I can't make it before noon unfortunately. I am then joining people at 1 p.m. Could that work instead? I could at least come by and say hello etc. Fel | Felice | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - I actually think Gabrielle will be making an appearance. She made her self available in Oro Valley last weekend where a friend of mine got a chance to talk to her about another issue. I am planning on attending the concert with some frie | Felice | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - Preview not available | Roy | Mar 24, 2008 |
| Re: [alternativeenergy-224] A 2nd meeting - How about we meet in front of the Himmel Park Library at 11:00 Saturday morning? Then at noon we can check out the concert. m On Mon, Mar 24, 2008 at 12:27 PM, Roy wrote: > Thank you Felice, I'd be willing to meet on Saturda | Mitchell | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - Preview not available | Roy | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - FYI. There is a solar powered concert at Himmel Park this coming weekend. Saturday starting at noon. I am not sure of the details. The mayor, a few other dignitaries and Cloud 98 radio station are mananging the event. The performers are the winners | Felice | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - Preview not available | Roy | Mar 24, 2008 |
| Re: [alternativeenergy-224] A 2nd meeting - A park is ok with me. A park with benches and shade trees would be nice. I'm new to Tucson so can't suggest a place. Perhaps on or near the U of A campus? So far it's just Roy and myself. Jimmy? Tom? Rex lives in California and Felice has said | Mitchell | Mar 24, 2008 |
| RE: [alternativeenergy-224] A 2nd meeting - Preview not available | Roy | Mar 23, 2008 |
| Re: [alternativeenergy-224] A 2nd meeting - Hello, I am unexpectedly busy with travel plans. I regretfully will not be able to get together at the end of the month. Looks like end of April for me as far as meet-up sessions. Sounds like you are getting the ball rolling. Good job. Felice | Felice | Mar 20, 2008 |
| A 2nd meeting - Roy and I were chatting on the phone, and we would like to have another informal meeting on the weekend of the 29th. It could be Saturday or Sunday, or even Friday or Monday. Let's hear suggestions for a time and/or a place. The place could be a r | Mitchell | Mar 20, 2008 |
| platform design - I'm not committed to sun-seeking platforms, but I like the idea. I think we should explore any avenues that members are interested in. I have been in email conversation with an engineer who does mechanical design work. He said he might be interested | Mitchell | Mar 20, 2008 |
| Re: [alternativeenergy-224] Roy and I had lunch - It may very well be that tracking units are only cost effective in a small fraction of applications. Rex mentioned to me a few days ago that he had a large old TV satellite dish, with a motor. This was in the context of solar concentrators, that wo | Mitchell | Mar 17, 2008 |
| Re: [alternativeenergy-224] Roy and I had lunch - Mitchell [2008-03-17 07:07]: >If there is no shortage of space in which to place the solar cells, >then is it probably cheaper to not bother with tracking and just buy >more cells. However, we are interested in home use, and often | rex | Mar 17, 2008 |
| Re: [alternativeenergy-224] Roy and I had lunch - If there is no shortage of space in which to place the solar cells, then is it probably cheaper to not bother with tracking and just buy more cells. However, we are interested in home use, and often that means that space is at a premium. Tracking is | Mitchell | Mar 17, 2008 |
| Re: [alternativeenergy-224] Tracking vs stationary - Jimmy Petrol [2008-03-17 06:48]: > > However, the cost of tracking has usually seemed to be greater than the > cost of lost efficiency, ie; it is cheaper to buy another cell and make up > the difference, loose the mechani | rex | Mar 17, 2008 |
| Re: [alternativeenergy-224] Roy and I had lunch - Tracking is nice, esp. since you know the math....which is the thing I lack and hoped you could provide. However, the cost of tracking has usually seemed to be greater than the cost of lost efficiency, ie; it is cheaper to buy another cell and make | user 6731327 | Mar 17, 2008 |
| Roy and I had lunch - We got acquainted and discussed various aspects of solar energy conversion. Roy knew quite a few details that were new to me. He actually has a few solar panels and various related piece of hardware. One of the things we discussed was how make the | Mitchell | Mar 16, 2008 |
| Our Mailing List and Archives - I just wanted to point out that we have a mailing list. It's address is [address removed]. Any messages sent to that address will be relayed to all members. (like this message) Furthermore, the messages are archived, and you can loo | Mitchell | Mar 15, 2008 |
|
Re: [Cuckoosnest] A New Project - http://gliving.tv/technology-science/inflating-solar-panels-the-way-of-the-future/
describes low-cost parabolic mirrors.
I want to point out that if you are using mirrors to increase the
insolation of a flat panel solar array, the mirror should be fl
|
Mitchell | Mar 12, 2008 |
| Re: [Cuckoosnest] A New Project - On Wed, Mar 12, 2008 at 4:15 PM, Steven Smith wrote: > I've been reading about some setups where you moveable mount moveable > mirrors focused on one static mount panel. Mylar mirrors can be both > light and strong | Mitchell | Mar 12, 2008 |
| Re: A New Project - I have more comments below, but for starters let me say that, as of this point in time, you are our most productive researcher! On Wed, Mar 12, 2008 at 2:35 PM, rex wrote: > Mitchell wrote: >> I would like a solar panel | Mitchell | Mar 12, 2008 |
