## 3 Analyzing Systems Improvement Programs
### Minimize the Power Consumption of the Device  
Based on the structural parameters of the main control building of the substation, a hexahedral unstructured mesh, which is simple to partition and shape, was used for modeling. Since the quality of the mesh partition directly affects the accuracy of calculations, the \"Normal\" method was employed for partitioning. Furthermore, areas with significant \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Cost** & \multicolumn{2}{c}{**Income**} \\ \hline Total installed capacity & 17.68 kW & Power generation in the first year & 21.25 MWh \\ Cost & 5 RMB/W & Total power generation & 468.7 MWh \\ Components as a percentage & 50\% & Gross income & 0.7 RMB/kWh \\ of total investment & 176,800 RMB & Collector line loss coefficient & 328,100 RMB \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Economic benefit analysis of solar power generation systems. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Name** & **Converted Value** & **Conventional Unit** & **Annual Average Value** & **Gross** & **Unit** \\ \hline Power generation & - & - & 18.75 & 468.72 & MWh \\ Standard coal & 0.3015 & & 5650 & 141,330 & \\ Electric dust and fume & 0.0022 & & 40 & 1030 & \\ CO\({}_{2}\) & 0.5703 & kg/kWh & 10,692 & 267,300 & kg \\ SO\({}_{2}\) & 0.0101 & & 190 & 4730 & \\ NO\({}_{\chi}\) & 0.0152 & & 290 & 7130 & \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Analysis of the benefits of emission reduction from photovoltaic systems. Figure 9: Profitability of photovoltaic power generation. temperature and velocity gradients, such as air supply and exhaust outlets, underwent local refinement after coarse partitioning. The maximum size of the mesh did not exceed 0.2 m, and the mesh quality was above 0.8. This simulation involved a total of 166,685 mesh elements and 181,139 nodes. The simulation results and analysis are discussed below. Electric heating is a natural convection heat transfer terminal device, which has the advantages of low investment cost, but it can lead to uneven heating and cooling, high surface temperature, and high maintenance costs. Aiming to address the issue of uneven heating and cooling, Airpak3.0.16 is used to simulate the temperature field of each room in the main control building during electric heating and analyze the possibility of condensation in the room. Figure 10 displays the temperature field distribution of the main control building of the substation at four different heights (0.2 m, 0.5 m, 1.5 m, and 2.1 m) with an outdoor ambient temperature of \(-\)30 \({}^{\circ}\)C. It can be observed that the temperature of the 10 kV equipment distribution room, secondary equipment room, and secondary equipment room monitoring room falls within the range of 17 to 20 \({}^{\circ}\)C, meeting the design requirements. No low-temperature phenomenon is observed in any part of the room. Figure 11 displays the distribution diagram of indoor temperature when the heat supply is at its peak and the outdoor ambient temperature is \(-\)20 \({}^{\circ}\)C. It is evident from the figure that an increase in outdoor temperature leads to a significant rise in temperature (by 4 to 6 \({}^{\circ}\)C) of the 10 kV equipment distribution room, secondary equipment room, and secondary equipment room monitoring room, if the heat supply of the radiator is not reduced. The reason for this is that the electric heater in the substation cannot be adjusted for heat production, and the equipment's heat supply is designed based on the maximum heat load. As a result, when the outdoor temperature increases, the required heat load decreases, but the heat supply remains the same, causing the indoor temperature to rise. This results in unnecessary energy waste and makes it difficult to achieve the goal of energy conservation and emission reduction. The air source heat pump utilizes a compressor to convert low-grade heat energy from the air into high-grade heat energy that can be used for industrial production with the aid of electric energy.