Davin Hoyt

pollinator
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since Jan 04, 2012
Davin likes ...
tiny house wofati
Architecture apprentice for life.
Retired from rat race.
I was raised in Georgetown; university in Lubbock; lived in Houston (where I worked while finding answers to humanity's shortcomings).
I am young, enthusiastic, and flowing with creativity. I am proud through selflessness.
I seek bonds with similar people.
My parents still watch TV, and my friends have molded their lives to urban-materialisms.
Thank (GOD) for those who've kept their sanity.
Central Texas (Georgetown)
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Recent posts by Davin Hoyt

Peter Chan wrote:are there plans for this 2017 ATC solar dehydrator build?

Link is at the top of this page.
1 month ago

C. Letellier wrote:I would argue that wanting that difference in temperature is exactly why the outside should be painted black.



I am arguing that the conduction heat passing through the wood at point C and D (see image) would not be desired.
1 month ago

C. Letellier wrote:4.  I assume eventually the whole outside of the box will be painted black for that bit of heat gain?



No. Only the interior of the solar collector has been/will be painted. I believe we want the difference in temperature. At the back bottom of the dehydration cabinet, the air will need to rise and escape the system. I believe temperature difference will encourage air movement, and I fear that the increased heat would slow the system's air velocity. I have not done tests.
1 month ago

Peter Chan wrote: curious about the collector - does the depth of the solar collector matter much?  I see the one pictured is about 5 inches deep or so?  also wondering if you use glass rather than a plexi or other plastic material, so as to avoid any fumes from the plastic being absorbed by the food?

p.s. is this angle of the collector important?  what is best?



GLASS: This solar dehydrator has glass, not plexi-glass.

DEPTH: Although I have not run tests, I believe the volume of air (depth of collector) inside the solar collector does matter, and contributes to the velocity of air moving through the system. I believe the dehydration cabinet would need to be smaller for the solar collector to lose depth. The relationship between solar collector and dehydration cabinet has yet to be fully explored here. I would enjoy seeing a study for volume of air / velocity of air ratios.

ANGLE: The angle will also contribute to the velocity of the air. I was informed that the appropriate angle of solar collector ceiling is between 35 and 45 degrees. (Little Colorado Plateau Resource Conservation and Development Area, Inc.)
1 month ago
I have EDITS /highlights for a successful dehydrator build.

Please take note because these EDITS have yet to be added to the plans!!!

1). On the western side of the dehydration cabinet, 2x4s create a shelf for snow at the bottom. I recommend bringing you dehydrator in during the winter, but some extra material can be used to close up that wall, or fur out that area with water resistant materials to help prevent moisture problems.
2). The solar collector's floor and wall should be painted, as well as the remaining opaque surfaces inside the solar collector.
3). Mesh material can be fortified by sandwiching it between layers. Strips of wood can be added to help resist critter attack.
4). Air flow is most important. Weather strip between the top surface and the wall tops.
5). Air flow is most important. Felt strip between surfaces that are adjacent to air flow.
6). Deny fruit flies by using a smaller mesh, in addition to the mesh called-out on the forums (and plans).
7). It's worth noting the originator of this concept/design uses plastic mesh for food trays and fly protection.
8). The tray size could be increased. Do not increase tray size in the North direction.
9). The solar collector and the dehydration cabinet could be built as separate pieces and joined together with screws.
10). The Missoula1 model could be placed on caster wheels.
2 months ago
I have been under the opinion that we could: sternly plan guilds based on plant families, then, spread seeds (and transplants) within the family zones/areas. Thoughts?
3 months ago
Recently I received questions via email:

Q: "I am looking at the plans Missoula1 model... I am interested in building one of these. I see in the video the original model has a chimney pipe. Your plans don't include it. Is this an oversight or did you determine it was unneeded?"

A: The original model does not have a chimney pipe. The chimney/riser in the Missoula1 model is the space inside the back wall. My video "Solar Dehydrator - Air Flow" has back wall illustrated simply.

Q: "Did you build and test your design?"

A: No, I modeled Mark Vander Meer's solar dehydrator and gave my documentation the name Missoula1.
3 months ago

Patrick Kniesler wrote:Would it be ideal to size the structure to fit the glass laying as in the design, or rotated vertical, or just find the glass first and decide based on what you have? Are there issues with toppling if the structure is too narrow, requiring a base?



Air flow is very important in solar dehydrator design. I would worry about air flow if this design were to be narrowed.

We used what glass was available (craigslist or something), and did not bother cutting the pieces. Instead, it over-hangs the exterior walls of the structure which is a roofing benefit.
3 months ago

Patrick Kniesler wrote:Meaning films applied to cut UV exposure and such?



Yes.
3 months ago