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微型水力发电厂

2018-4-22 20:57| 发布者: dymodel| 查看: 394| 评论: 0|原作者: reid

摘要: 微型水力发电厂 我的居住地,有一个流提供足够的水流量和高度,以运行一个小涡轮,提供电力给我的家。微型水力发电厂正在实施,这里有一些照片的过程。 My little paradise has a stream that provides enough w ...
微型水力发电厂
我的居住地,有一个流提供足够的水流量和高度,以运行一个小涡轮,提供电力给我的家。微型水力发电厂正在实施,这里有一些照片的过程。

My little paradise has a stream that provides enough water flow and head to run a small turbine, to provide electricity to my home. While writing this, the microhydro plant is being implemented, and here are some photos of the process.
Since I usually like to start at the end, the first thing I built is the controller:
微型水力发电厂
It is an implementation of Jan Portegijs' "Humming Bird", with some changes and adaptations.
微型水力发电厂
The largest cost of the plant, by far, is in the piping for the rather long penstock. When the purchase was made and the truck arrived, we unloaded the pipes at different places, to get them as close to the installation area as possible. Here are the main stacks:
微型水力发电厂
A smaller number of pipes were stored closer to the turbine site. All these are white PVC pipes, class 2.5. The lowest of them will be used pretty much at their safe limit, very close to 2 bar of pressure.

 
Only for the last part of the run, where the pressure exceeds 2 bar, I will use blue class 4 PVC pipe.
 
To change from the low slope run of the white pipe to the much steeper run of the blue one, a change of direction is required. I tried to purchase a 135 degrees bent pipe, but it was not available despite appearing in the catalog. The best I could buy is a 135 degrees corner piece, which is far from optimal, but perhaps better than heat-bending a pipe myself, in this relatively high pressure area.
 
My neighbor Gabriel and his son took the hard work of digging the channel. Here you can see the beginning of the open channel that will bring the water from the stream to the forebay. A very small dam, made from wooden boards and some rocks, is foreseen to raise the water level a little bit to fill the channel.

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