Table 1: Test factors variance analysis of collector efficiency.

VariabledfSum of squaresF

F52.78115322.199**
P10.009242.393**
Th10.006177.936**
𝐹 𝑃 50.01584.428**
𝐹 𝑇 50.0017.517**
𝑃 𝑇 10.0004.972
𝐹 𝑃 𝑇 50.0013.168
Error480.002

**Significance level of 1%.