NAVAL FACILITIES ENGINEERING COMMAND PORT HUENEME CA PORT HUENEME United States
This report summarizes the findings from a demonstration of sand filter technology to determine whether the technology will save energy with a simple payback within the projected life of the equipment. The Chemworks model CW-120-H was selected for this evaluation. NAVFAC Engineering and Expeditionary Warfare Center EXWC performed the evaluation at the Naval Air Station Lemoore, CA. The two year evaluation period began with one year of sand filter operation. During the second year, the sand filter was removed from service to develop the baseline data. NAVFAC EXWC determined that under the conditions of this demonstration, the sand filter technology produced exceptional energy savings. While other environmental and operational conditions may provide higher energy savings, in this project, the technology payback period was two 2 years or less, assuming a chiller cleaning schedule of two 2 years or greater, which is well within the projected twenty 20 year life of the equipment.