## 3 Results and Discussion
### The Temperature and Humidity in the Greenhouse Using the Optimum Flow Rate of Water Misting
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Time**} & \multicolumn{10}{c}{**Humidity (\%)**} \\ \cline{2-10}  & **Day 1** & **Day 2** & **Day 3** & **Day 4** & **Day 5** & **Day 6** & **Day 7** & **Average** &
\begin{tabular}{c} **Standard** \\ **Deviation** \\ \end{tabular} \\ \hline
7 a.m. & 65 & 65 & 65 & 66 & 67 & 67 & 66 & 66 & 0.900 \\
8 a.m. & 83 & 84 & 84 & 83 & 85 & 83 & 84 & 84 & 0.756 \\
9 a.m. & 82 & 81 & 80 & 82 & 81 & 83 & 82 & 82 & 0.976 \\
10 a.m. & 76 & 75 & 75 & 76 & 77 & 75 & 76 & 76 & 0.756 \\
11 a.m. & 80 & 81 & 80 & 80 & 81 & 80 & 80 & 80 & 0.488 \\
12 p.m. & 75 & 77 & 77 & 75 & 76 & 75 & 77 & 76 & 1.000 \\
1 p.m. & 73 & 73 & 72 & 73 & 72 & 72 & 73 & 73 & 0.535 \\
2 p.m. & 74 & 73 & 75 & 72 & 73 & 73 & 74 & 73 & 0.976 \\
3 p.m. & 75 & 76 & 77 & 75 & 73 & 74 & 76 & 75 & 1.345 \\
4 p.m. & 80 & 79 & 79 & 80 & 80 & 81 & 79 & 80 & 0.756 \\
5 p.m. & 83 & 82 & 83 & 84 & 82 & 82 & 83 & 83 & 0.756 \\ \hline \hline \end{tabular}
\end{table} 
Table 9: Humidity in the greenhouse using the optimum flow rate of water misting. Figure 7: Temperature in the greenhouse using the optimum flow rate of water misting. greenhouse can make the greenhouse temperature not exceed \"33 \({}^{\circ}\)C\" from 11 a.m. to 2 p.m.. The highest temperature of the greenhouse during the day was only \"32.9 \({}^{\circ}\)C\" at 12 p.m.. This was due to the longer time that the water mist fell from the nozzle to the ground surface because the length of the path travelled by the water mist with the nozzle tilt angle at 60 degrees is longer [16; 20]. The falling water mist to the ground surface occurs in the process of evaporation of the water mist; therefore, the phase changes to a gas. At this stage, the water mist will absorb heat in the greenhouse so that the temperature inside the greenhouse becomes lower [13]. Figure 8 also shows that humidity is maintained at ideal conditions from 7 a.m. to 5 p.m., which is not more than 85%. At 7 a.m., the water flow is \"50 L/h\", so the humidity at 8 a.m. is not at the maximum limit. Based on tests with the \"80 L/h\" and \"60 L/h\" discharges, humidity at 8 a.m. is always at its maximum limit of 85%. The optimised misting system's humidity at 5 p.m. did not exceed its maximum limit. The misting system stopped working at 3 p.m., when the temperature is also at an ideal condition. However, even though the misting system had stopped working, the humidity increased over time until it reached 83% at 5 p.m.. This phenomenon is similar to a greenhouse without a misting system, which can be seen in Figures 3 and 4, where the temperature decreases from 2 p.m. and humidity increases from 1 p.m. It is also affected by the reduced radiation from the sun shining on the greenhouse. This research is in line with the research conducted by [PERSON] et al. [14] in a greenhouse in Bogor-West Java, Indonesia. Their study revealed that the temperature at 3 p.m., which reached \"36 \({}^{\circ}\)C\", decreased to \"30 \({}^{\circ}\)C\" at 5 p.m. This phenomenon occurs naturally when the greenhouse does not have the technology to manipulate the temperature [10; 14]. Figure 8: Humidity in the greenhouse using the optimum flow rate of water misting.