Dual-Functional Rainwater Harvesting System

Abstract

Water harvesting has become a common practice in modern metropolitan
settings. As a result of the paving and building of various metropolitan regions,
natural catchment areas have reduced. Not only that, but our country is not immune
to the global warming wave, which requires serious consideration. This is
demonstrated by the fact that the earth's temperature is rising day by day. The goal of
this project is to create innovative, environmentally sustainable building systems. The
overall goal of this study is to create a small-scale roof cooling system that produces
direct power from rainwater. Additionally, a digital multimeter was used to test the
electric current in this dual-purpose rainwater harvesting system, and an
environmental meter was used to test the temperature in the cooling system. This
experiment aims to demonstrate that the created model functioned well in the tests
carried out. The average reading voltage test findings for the first, second, and third
readings are 0.020 volts, 0.122 volts, and 0.133 volts, respectively. According to the
turbine test results, that is the voltage value, the third reading value is greater than the
first and second readings. Based on temperature tests, the average temperatures
before and after 10 AM were 31.5 °C and 30.5 °C, respectively. But at noon, the
temperature was 34.6 °C and 33.0 °C; the value was decreasing. The average value
at 2 PM before was 32.3 °C and 31.3 °C after the system was applied. This
temperature value is obtained by using an environmental meter that shows the
temperature difference between before and after. The reading value for before and
after 12 PM shows a higher temperature difference value of 1.6 °C compared to the
difference for 10 PM and 2 PM, which is 1.0 °C.