Solar Powered, Geothermal Heated Snowless Driveway and Walkway
Geothermal / Radient Heat
Snow and ice covered driveways and walks have been plaguing man for many winters now. we have created tools and machines to assist us in our efforts of snow removal, but they still require bundling up and facing the cold. Would it not be wonderful to watch the snow melt away as it lands on your walk, no matter what the current weather conditions? I think I have formulated a solution to achieve this kind of winter wonderland.
To get started we will be discussing to types of heating systems; geothermal and in floor radiate heat. Then we will combine them as one and use them in a different way then normal, let us begin.
Geothermal Heat pump / Ground Source Heat
A ground source heat is an alternative energy heating and cooling system that uses the natural heat of the earth to heat and cool our homes. The concept is simple, below the frost line the ground maintains a constant 65 degrees F. Water or a water antifreeze mix is circulated in pipes that are buried below the frost line or deeper, they are connected to heat exchanging unit in the home where the heat from the earth that has been transferred to the water is used to warm the home. In some cases the water may be heated by other means ( lp, natural gas, electric)once in reaches the exchanging unit. This is actually an efficient way to heat your home, due to the fact that you are only heating the water from its already warm 65 degrees.
In Floor Radiant Heat
In Floor Radiant heating is a heating system which uses heat conduction to warm the floor then the heat rises and warms the room. Most commonly these systems consists heating and circulating warm water in a closed system of pipes. Similar to our previously discussed ground source heat, water is used as the medium for heat transfer. I believe that a combination of these system has been used before for in home heat, but we are talking about warming our walks to melt snow.
Now on to the system.
- Radiant Floor Heating- Can You Install This Yourself...
I am sure many have wondered whether or not radiant floor heating is something a homeowner can install themselves.
- Geothermal Energy for Household Use
Geothermal power is a natural resource whereby heat or cooling is extracted from the Earth to help fuel your home.
- What is Geothermal Underfloor Heating?
Geothermal underfloor heating is a type of underfloor heating system that utilizes geothermal energy. An underfloor heating system is one that places the heat source under the floor of the house. Having a...
Now to the topic at hand, there may be a system that does warm the walks and melt the snow as it falls but what I am purposing here is a system that uses little to no additional energy. Combining these to effcient heating systems to create a warm, snow resist, shovel free walkway is easy. Frist we aquire some tubing like that used in the ground source system and that used in the radient floor system and design a system of circulation. Then using the figure below as a guide we will need to bury some of it below the frost line and lay some in the poured concrete of our walks and ways. This will need to be done at the time the walk and driveways are poured or the exsisting will need to be destoyed and replaced, unless you can figure out a way to lay the tubing under your exsisting walkways without damaging it (if you do let us know). I will guess that a 4 to 1 ratio of tubing will be sufficent to accomplish our goal. This means we will bury 4 foot of tubing for every 1 foot in the walkway. We will also need a pump to circulate the water and a few valves for maintenance access and system bleed. I suggest laying the tubing in a zig zag pattern with about 8-10inch gap between lines, see figure for illustration. Now our goal is to keep the walk way surface above freezing which is 32 degrees F, so if the water from the earth is 65 degrees then there should be no need for additional heat. With that in mind the only energy require to run our system is a small amount of electrical for the circulating pump. Any small electrical pump will work just fine. For complete efficiency I suggest a small DC pump and small solar panel kit and battery to run it, this can provide circulation at no additional cost. Now you can sip your coffee while standing in the window watching your neighbors shoveling their walks in the freezeing cold.
This hub it not very detailed or specific and the contents are purely speculative and theoretical. This design has not been proven or tested in anyway. I in no way claim to be an expert in the areas I am about to discuss. I also take no responsibility of damages or expenses cause by the implementation of these ideas. I recommend researching the two heat systems mentioned before attempting to build a system like this. I also recommend professional asssistence in any DIY project.
With all that said I am greatly interested in comments and discussion from expert individuals who have or are willing to experiment with the following idea.
Thanks for reading, I look forward to your comments.
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