Tangki NAHRIM is developed for the calculation of optimal tank size for rainwater harvesting in Malaysia.
The latest upgraded version, Tangki NAHRIM 2.0 is available as a web application: [Tangki NAHRIM 2.0]
This web app calculates the efficiency (water savings) of rainwater harvesting system by tank sizes. Based on your inputs such as rainfall, roof area, and your daily water demand, the web app will calculate the water-saving and storage efficiency for the range of tank sizes that you choose to be compared. You can adjust your inputs for the rainwater harvesting system and finally select a tank size which fulfils your required level of performance (in this case, water savings).
The built-in rainfall data covers all Malaysia, which will benefit all Malaysians, as well as people from all over the world since custom rainfall data can be used in this application.
Details of the methodology is published in Water Practice and Technology and can be cited as such:
Goh, Y. C., & Ideris, M. (2020). Tangki NAHRIM 2.0: An R-based water balance model for rainwater harvesting tank sizing application. Water Practice and Technology.
Tangki NAHRIM 2.0 | Released in 2020 | URL: Web application
These software and web application are meant to be a guide in estimating the size of the rainwater tank with its respective reliability. The use of the software and/or the web application and the accompanying results thereof are the sole responsibility of the users. NAHRIM will not be held responsible for any consequences arising from their use.