What is a benefit of decreased mine resistance?

One significant benefit of decreased mine resistance is that it allows for reduced fan speed, which directly leads to power savings. When the resistance within the mine ventilation system decreases, the fans do not need to work as hard to move the same volume of air. This reduction in effort translates to lower energy consumption, as the fans can operate efficiently at lower speeds while still maintaining adequate air flow. This is beneficial not only for reducing operational costs but also supports overall energy efficiency in the mining operation.

In contrast, increased operational costs, higher ventilation pressure, and increased frequency of maintenance would not typically be associated with decreased resistance. Instead, these factors are often related to higher resistance scenarios where more robust and potentially more expensive measures are required to maintain sufficient airflow and system performance.