observations in CA can be applied to PA, we compared the annual energy usage to peak demand factors for two disparate climate zones in CA. The results, shown in Figure 38, indicate that the ratio of peak demand to annual energy usage is not strongly influenced by climate. Also, though the actual usage profiles may be different, the average usage between noon and 8 PM on summer weekdays is quite similar for al building types. The close level of agreement between disparate climate zones and building types suggest that the results will carry over to Pennsylvania. Figure 37: Load shapes for hot water in four commercial building types Figure 38: Energy to demand factors for four commercial building types. Definition of Terms The parameters in the above equation are listed in Table 397 below. The values for all parameters except incoming water temperature are taken from impact evaluation of the California Urban Water council Pre-Rinse Spray Valve Installation Program. FBNG = Baseline Flow Rate of Sprayer for Non-Grocery Applications FPNG = Post Measure Flow Rate of Sprayer for Non-Grocery Applications UBNG = Baseline Water Usage Duration for Non-Grocery Applications UPNG = Post Measure Water Usage Duration for Non-Grocery Applications FBG = Baseline Flow Rate of Sprayer for Grocery Applications FPG = Post Measure Flow Rate of Sprayer for Grocery Applications UBG = Baseline Water Usage Duration for Grocery Applications UPG = Post Measure Water Usage Duration for Grocery Applications THNG = Temperature of hot water coming from the spray nozzle for Non-Grocery Application TC = Incoming cold water temperature for Grocery and Non-Grocery Application THG = Temperature of hot water coming from the spray nozzle for Grocery Application
observations in CA can be applied to PA, we compared the annual energy usage to peak demand factors for two disparate climate zones in CA. The results, shown in Figure 38, indicate that the ratio of peak demand to annual energy usage is not strongly influenced by climate. Also, though the actual usage profiles may be different, the average usage between noon and 8 PM on summer weekdays is quite similar for al building types. The close level of agreement between disparate climate zones and building types suggest that the results will carry over to Pennsylvania. Figure 37: Load shapes for hot water in four commercial building types Figure 38: Energy to demand factors for four commercial building types. Definition of Terms The parameters in the above equation are listed in Table 397 below. The values for all parameters except incoming water temperature are taken from impact evaluation of the California Urban Water council Pre-Rinse Spray Valve Installation Program. FBNG = Baseline Flow Rate of Sprayer for Non-Grocery Applications FPNG = Post Measure Flow Rate of Sprayer for Non-Grocery Applications UBNG = Baseline Water Usage Duration for Non-Grocery Applications UPNG = Post Measure Water Usage Duration for Non-Grocery Applications FBG = Baseline Flow Rate of Sprayer for Grocery Applications FPG = Post Measure Flow Rate of Sprayer for Grocery Applications UBG = Baseline Water Usage Duration for Grocery Applications UPG = Post Measure Water Usage Duration for Grocery Applications THNG = Temperature of hot water coming from the spray nozzle for Non-Grocery Application TC = Incoming cold water temperature for Grocery and Non-Grocery Application THG = Temperature of hot water coming from the spray nozzle for Grocery Application
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