Rainwater harvesting system (RHS) and its applications on METU campus

Kadı, Orhan Veli
The rainwater harvesting is a water management strategy that is becoming more and more common around the world. Due to the decrease in fresh water resources, development of rainwater harvesting systems (RHS) gain importance. This system, which is used to store the rain reaching the earth and use it to supply various types of water demands, is very easy to install. In this study, a water balance model (WBM) is run with different rain harvesting tank (RHT) sizes to find the best RHT sizes for a set of buildings at Middle East Technical University (METU) campus. A cost-benefit analysis is conducted to evaluate the financial feasibility of various RHT sizes and their performances are evaluated using performance indicators such as reliability, stormwater capture efficiency, water saving efficiency and overflow ratio. Generally, 25 m3 RHTs are found to result in the maximum net benefit for building groups of METU. However, dormitory buildings which are used by relatively more residents for longer times during the year and have smaller collection areas, require more collector area for their RHSs to be profitable.


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Citation Formats
O. V. Kadı, “Rainwater harvesting system (RHS) and its applications on METU campus,” M.S. - Master of Science, Middle East Technical University, 2022.