PICO式水轮机转轮 总结 在这篇文章中，你会发现一个微型水力发电系统，我develloped的摘要。该系统被设计成充电电池一间银行，需要通过一个高山小屋电源。这docuement旨在分享我对那些谁可能有兴趣使用一个类似的项目工作。在这个文件中，我提供的思路和可能是有用的信息。我想澄清，我不是一个professionnal的，而且布置所有的计算都是我的，所以我负责的唯一的人 Summary In this article you will find a summary of a pico hydro electric system which I develloped. This system is designed to recharge a bank of batteries for power supply needed by an alpine chalet. This docuement aims to share my work for those who might be interested in using a similar project. Within this document, I provide ideas and informations which might be useful. I would like to clarify that I'm not a professionnal, and that all calculations furnished are mine and therefore I'm the only person responsible Chapitre 1. Introduction Table of content 1.1. Site setup 1.2. Technic choices This pico hydro electric turbine is in the process of devellopement and is means of producieng clean energy in complete autonomy. According to my calculations, it will produce a current of 25 to 35 Amperes under a 12 Volts tension. its mins function will be to recharge a bank of battery to power on an alpine chalet in combinaision with a photovoltaique system. 1.1. Site setup I have a natural energy source: water. It cme to my chalet through a semi rigid PVC pipes. Collection is made up and feeds a tank of a capacity of 2,500 liters. - Pipes diameter = 19 mm intérior (25 mm external) - Drop Tank to chalet = 50 mètres - Pressure = 5 bars - Flow = 60 litres/minutes (with 12 mm injector diameter) 1.2. Technicals options The element which will determine the "form" of my project is the "wheel". After much reflection and research, my choice was made to a Pelton wheel built in epoxy resin with a diameter of 133 mm. I found a good supplier in Australia, whose link can be found in the 'links' section. I my opinion the pelton wheel offers the best value for money (about 65 Euros), however this wheel is extremely fragile so be very careful! It is constructed using epoxy resin, very strong but also brittle (I have had some bad experiences because I did not pay attention to this characteristic). This also means that a filter system needs to be used upstream from the turbine to filter particulates (small stones and pebbles). There is an alternative whell that is less brittle but much more expensive. Lastly it should be noted that you can find the complete turbine system prebuild and ready to use for 1500 Euros. Chapitre 2. Theory (calculations) Table of content 2.1. Introduction 2.2. Estimation of potential 2.3. The speed of the water 2.4. Angular velocity 2.5. Cross sectional area of the injectors 2.6. Torque 2.1. Introduction Before I could start this project I had to calculte if I could draw power from volume and pressure of flow present. So the next step to to explain the calculations and estimations made simply. If there are errors in this page please contact me via e mail, it is this way that we can improve and expand our possibilities. Note In the following section I will explain the general formula followed by the same formula using my 'site' specific data. 2.2. Estimation of potential Figure 2.1. Formula to estimate potential This is the first formula which I used, it makes it possible to estimate the potential by considering the two parameters: volume per second and the 'Head' of water (the height of water above the turbine). |

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