Innovation
Simulations
To avoid costly overdesign and an ineffective cooling system, an ESP-r simulation was done. The 3-D thermal simulation accounted for the stored products’ thermal mass. The thermal mass of 44,092 lb (20 000 kg) of milk product has a major effect on load as shown in Figure 1. This procedure led to a 50% decrease of the initial standard sizing made by the chiller distributor. Their sizing doesn’t account for transient states or thermal mass. Another overall building simulation has been done with the interface EE4 for DOE-2. This showed that almost all heating load can be satisfied by heat recovery. EE4 is providing a reference building based on Standard 90.1-1989. The building with all efficiency measures, excluding process loads (refrigeration), gives an energy consumption 62% lower compared to that reference building.