C3: Pressurization

Description:

This metric describes the pressure differential between the cleanroom and the surrounding spaces.

Benchmarks:

Column graph illustrating pressurization levels for sixteen cleanrooms; X axis = Cleanroom ID, Y axis = Pressure in w.g., 0-0.16

Figure. Pressurization levels for cleanrooms in the LBNL database.

Actions Inferred:

  • Optimize the differential pressure to the minimum required to meet cleanliness requirements. Excessive pressurization increases energy use.