Intelligent control of showers in solar heating systems and gas to water economy

摘要

The following article presents a solution to the water waste in showers heated either by solar or gas energy. Analyzing such structures, there is a considerable physical distance between those heating devices or hot water trunks and the douche. Showers that are equipped with such devices are known by a big water flow, having cold water dropped off for a period of time coming from unheated pipes or water trunks. Considering the current environmental conditions, as water saving, the amount of water dropped which is not used for bathing is a problem. The Proposition is heating up the first water flow electrically, it can be used. Assisted by the Arduino Platform, the prototype verifies the water temperature inside the shower through a sensor and controls a heating system to heat the water or not electrically. Before turning on the shower the user sets the temperature using two buttons and a LCD display. In order to guarantee the minimum energy use, the circuit keeps the heat up only if the water temperature the gets to the shower is less than the one set. Appling the prototype in large scale can end the waste caused by these systems so they can be totally sustainable.