ORCID
https://orcid.org/0000-0003-1923-0319
Abstract
This study uses a mass balance model and economic analysis technique to present an estimation of roofing areas and storage tank capacity for Rainwater Harvesting (RWH) system. The water-saved benefits were estimated using the monthly rainfall of over 39 years from 1981 to 2020 and five roofing areas. The proposed roof-storage-ratio method presents the minimum requirement of roof area and storage tank size when the ratio value is closer to 1. The benefit-cost ratio and percentage of reliability indicated the optimal roofing areas ranging between 200 and 300 m2 for storage tank capacity between 20 and 25 m3, with a minimum discount rate of 5%. The increased capacity of storage tank and roofing area would also be a potential factor to increase the investment cost for installing the RWH system.
Recommended Citation
Mdee, O. J. (2022). Estimation of Storage Tank Capacities for Different Roofing Areas for Rainwater Harvesting in Dodoma Urban, Tanzania. Tanzania Journal of Engineering and Technology (TJET), 41(2), 109-120. https://doi.org/https://doi.org/10.52339/tjet.v41i2.784
Publisher Name
University of Dar es Salaam