No abstract

Renewable energy sources are getting more and more popular due to the increasing world population and decreasing conventional sources. In recent years, climate change and global warming have also increased the amount of water needed for irrigation. Renewable energy sources may therefore be used to develop photovoltaic pumping systems. Using photovoltaic arrays to drive water pumping units for irrigation in remote areas and desert regions is an economical solution. The sizing of photovoltaic pumping systems is important in order to optimize the power peak of photovoltaic array and for the choice of motor, pump and inverter (when needed). A photovoltaic pumping system consists of at least six basic components: a photovoltaic array, a dc pump motor, a battery-charge regulator, a water tank, humidity sensors and an electronic control unit. The usage of such system is in a natural relationship between the availability of solar radiation and water requirement. In this study, the designed system is an electronically controlled system, based on humidity sensors. The water requirement increases with increasing solar radiation. Hence, the dc motor is operated by means of an electronic control unit. When humidity in the soil reaches a certain value, the dc motor is stopped. The operation of the control unit relies on the data received from humidity sensors. The designed system was implemented and the obtained results were satisfactory.

No abstract

No abstract

The utilization of renewable energy sources have been increasing day by day. Solar, wind, biomass, wave, etc. are some of the renewable energy sources. Solar, wind and hydro are more commonly used than others. Solar energy has many advantages such as abundance, renewability, continuation, and pollution free etc. Advancing technology increases people's life standards. Over time, high life standards have stopped being a luxury and entered people's homes with smart home automation systems. With the advances in Internet technologies, people now expect to be able to control their homes and workplaces over the Internet too. This study controls six different Computer/Internet-based systems of smart home automation in a house which is included solar arrays. These systems were illumination of three different rooms, temperature control of a room, garden irrigation system control, and home security system control. With the software written, all these systems were monitored online on a website. These controls were successfully experimented on the model house with the smart home automation system designed.