Gas regulators have to have access to ambient pressure to work properly, so they can't be "completely inside" of the tank. http://en.wikipedia.org/wiki/Pressure_regulator However not all propane regulator designs have the same degree of vulnerability to icing and ones deployed outside in cold environments by professionals will likely be loss prone to icing than the Chinese stuff at the local hardware store. Icing is caused by the Ideal Gas Law. PV=nRT. A law of physics that would be silly to argue about. http://en.wikipedia.org/wiki/Pv%3Dnrt Also, there are devices out there designed to connect to a Propane tank without an intermediate regulator. Large tanks of propane can benefit from thermal inertia for a while during cold snaps. But arguing about the -43.6F limit on Propane would be similar to arguing about the law of gravity. And my only point has been to remind people about the cold limits that exist for propane and propane regulators and to accommodate those limitations in your designs accordingly. I hope this helps.
Christopher Erickson Consulting Engineer Summit Kinetics Waikoloa, HI 96738 www.summitkinetics.com _____ From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mike Hammett Sent: Tuesday, November 26, 2013 10:33 AM To: WISPA General List Subject: Re: [WISPA] TEGs / Thermo Electric Generators No, it's in tanks that are the size of a medium sized car... outside. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com _____ From: "Josh Luthman" <j...@imaginenetworksllc.com> To: "WISPA General List" <wireless@wispa.org> Sent: Tuesday, November 26, 2013 2:27:26 PM Subject: Re: [WISPA] TEGs / Thermo Electric Generators Is the propane in a heated environment? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Tue, Nov 26, 2013 at 3:24 PM, Mike Hammett <wispawirel...@ics-il.net> wrote: I guess all of those homes that use propane to heat their homes with its 20 below zero don't exist. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com _____ From: "Christopher Erickson" <christopher.k.erick...@gmail.com> To: "WISPA General List" <wireless@wispa.org> Sent: Tuesday, November 26, 2013 12:20:24 PM Subject: Re: [WISPA] TEGs / Thermo Electric Generators Yes, it DOES matter how cold it is. Propane won't create gas pressure below -43.6F and many propane gas pressure regulators will ice up and stop working below about +20F. This isn't a problem for many locations but it is still important to know what the limits are. Christopher Erickson Consulting Engineer Summit Kinetics Waikoloa, HI 96738 www.summitkinetics.com -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Terry Hickey Sent: Tuesday, November 26, 2013 8:06 AM To: WISPA General List Subject: Re: [WISPA] TEGs / Thermo Electric Generators I had 5120 TEGS powering 7 mountaintop sites for about 8 years before I sold the system. As long as there is propane, they work. No moving parts, very little maintenance. It doesn't matter how cold or hot it is, they just work . Simple power that provides heat for the radio shack as well. Terry -----Original Message----- From: D. Ryan Spott Sent: Monday, November 25, 2013 10:15 PM To: WISPA General List Subject: Re: [WISPA] TEGs / Thermo Electric Generators Who was this from? Remember there is ZERO maintenance on a TEG. ryan On 11/25/13 9:04 PM, Mike Lyon wrote: > So i heard back on pricing today for the 100 watt propane TEG. $7960 > plus a $300 mount. > > > It's a cool idea but a Generac 7kw propane genset for $1900 with free > Amazon Prime shipping seems to be a better deal... > > -Mike > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4158 / Virus Database: 3629/6863 - Release Date: 11/24/13 _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless _______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4158 / Virus Database: 3629/6863 - Release Date: 11/24/13
_______________________________________________ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
