On 28th March 1979, at Three Mile Island nuclear power plant in USA, part of the core melted in the # 2 reactor. The TMI-2 reactor was destroyed. The cause of the accident was the little malfunction in the secondary cooling circuit which allowed temperature in the primary coolant to rise. This caused the reactor to shut down automatically. This situation developed because the level controls turned off the coolant to the reactor when they detected presence of cooling water near the top of the tank. The water at the top was not because of the tank got completely filled, it was because the water was too little in the tank that it got boiled and swelled up to the top of the tank.
Drinking Water from Air – Wind Water Turbine
Yes, you’ve read it right. The idea of collecting water from atmospheric moisture is pretty age old, but no one seemed to have implemented it in a practical way until Eole Water Company have successfully tested their prototype in a desert in abu-dhabi. They successfully collected around 1000 litters of water per day from their…
Water Overflow Indicator with Musical Alarm
In homes considerable amount of water lost every day due to refilling of water tank. We can avoid this just by having little knowledge with electronics. Here [[wysiwyg_imageupload::]]I have described a simple circuit with the help of two IC that is LM741 and UM66 which will give an musical alarm when your tank become full so that you can avoid wastage of water due to over flow.In this circuit IC LM 741 is an operational amplifier which is working as a comparator to sense the level of water present. And IC UM66 is used as melody generator. When tank is empty, water will not touch metal plate or sensor in that case inverting pin of LM741 IC is at higher potential in comparison to non inverting pin of IC1. Keep on reading to know more.