Sustainable Economic Solution to Prevent the Wasted Cold Water in the Start of Shower Time Using Low Cost In-Line Electrical Heater with MISO Fuzzy Logic Controller

This paper discusses domestic problem of waiting hot water for the shower use till it reaches satisfactory temperature, which result a lot wastage in fresh water. The outcome from research survey shows that there is no solution now as all solutions were either expensive or with effective results. Local small inline electric heater equipped fuzzy logic controller proposed this to be installed just before showerhead measure temperature and flow showerhead, control input-variables, decide operating voltage heater, output-variable. Matlab Simulink used model system. Different test cases are simulated prove performance safe operation Techno-economic study carried out determine “Direct Benefits” “Indirect can achieved if such system implemented wide range. Azerbaijan data taken an example calculate economic benefits. results show important benefits not only economy, increase sales opportunity 545,088,171.52 $, but also climate reduction greenhouse gas emission. indices provided easy reference decision makers project managers.