Maximizing the building Delta-T has a significant impact on the efficiency of the DES chilled water system and can reduce the energy used within the customer building
The Metro Nashville District Energy System delivered more than 62-million ton-hours of chilled water last year employing nine Trane Dual Compressor CenTraVac commercial chillers. Regular inspection, evaluation and maintenance of the chillers and all other major components of MNDES has helped to keep the system running at a 99.99 percent reliability rate since 2006.
Natural gas serves as a primary fuel source for steam generation for the Metro Nashville District Energy System (MNDES). Commercial natural gas service is available under both interruptible and firm service agreements with firm service costing significantly more per unit of gas consumed. MNDES maintains an interruptible natural gas service agreement which means lower natural gas costs per unit. In periods of unusually high demand for natural gas energy, MNDES can be curtailed or limited on its consumption by the natural gas distributor in Nashville, and consumption above allotment volumes can be extremely expensive.
Metro Nashville District Energy System boiler valve replacement, new butterfly valve installation, new trap station, and replacement 6” steam valve.