Articles

Unmanned Aerial Vehicle (UAV) is one of the most important invention of recent era. UAVs are popular for their use in places where humans are not allowed. Basically, UAVs are introduced in military to reduce casualty of their solder in warfront by a country. But later many possible applications have been found out by the researchers apart from its use in battlefield. Today the UAVs are popular by the Drone. This paper thrust on the principle of operation of drones and its major areas of application. Along with the discussion on foresaid topics, a system has also been proposed in this paper to monitor the faults of high rise structures and do small maintenance works where the installation of infrastructure could be costly and bears life threat.

Nowadays the burning issue in the country is the deficiency of electricity in rural areas to provide required amount of cool environment to conserve specific kind of essential commodities. A possible remedy is to use fossil fuels on an average of 35% of the time. The generation of sufficient energy to fulfil the required needs may lead to significant operating costs and large volumes of greenhouse gas emissions. This paper presents a design of cooling refrigerator using solar energy. Under different types of cooling system, lithium-bromide (Li-Br) & water (H2O) is considered as the best pair for absorption coolant. In coolant (like water), there is zero ozone deficiency capacity and very little global warming potential. Thus, the proposed refrigerator is environmentally friendly. No moving parts are present in the system. The average insulation in India is more than 5.5 KW / m2 per day, which is the most abundant, pollution-free source of such facilities. This paper therefore emphasizes the use of renewable energy sources such as solar energy in the cooling system.

Nowadays we all are suffering from lack of water. In this circumstances rain water harvesting system is one of the most feasible and viable options to overcome the crisis. In this system the rain water is collected from rooftop through rain pipe and is being stored into a reservoir. Then the water is filtered and distributed for drinking and irrigation purpose. In this study the filtration system has been proposed using pulse corona discharge. At the time of water purification with the help of Pulsed Corona Discharge (PCD) technique water is allow to run into a reactor where the atmospheric air or oxygen is available and simultaneously a short duration high voltage pulse creates a Corona discharge. Consequently high voltage discharges are produced by the equipment which is as little as hundred nanosecond in duration and it can be said that it is equivalent to the duration of a lightning strike. This work bears a noble propose to implement the use of Pulsed Corona Discharge and it endeavours to develop a solar fed filtration system so that one can use it off grid as well.