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Assessing rainwater harvesting systems and reliability analysis of storage tanks: a monitoring study and system simulation
Author(s) -
Molaei Oweis,
Kouchakzadeh Mahdi,
Haghighi Fashi Fereshte
Publication year - 2020
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12514
Subject(s) - rainwater harvesting , roof , reliability (semiconductor) , environmental science , storage tank , volume (thermodynamics) , environmental engineering , green roof , engineering , civil engineering , waste management , ecology , power (physics) , physics , quantum mechanics , biology
This study applied a simulation model to evaluate the reliability of rainwater harvesting systems (RWHs) and the potential for rainwater storage was investigated in three different buildings. The results indicated that the tank stores 97.7% of the run‐off from the gym roof. Modelling the volume of the tank connected to the gym roof showed that 100% reliability can not be achieved for a roof with a relatively small area. The reliability for a tank larger than 2600 L was independent of the size of the tank. Maximum reliability of the RWHs was 70% of the total days of the year for a tank volume of 10 000 L, 300 m 2 roof area and daily demand of 300 L (60% demand). Minimum reliability was 3% of the total days of the year for a tank volume of 1000 L, 100 m 2 roof area and a daily demand of 1000 L (80% demand).