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1 KWTON is the efficiency of the entire Chilled Water plant (DX Units).23.6937=5.5454 BTU/lb of dry air) -n. (29.2391ENTHALPHY is the difference in enthalpy of Mixed Air (76F db, 50% <br /> RH) and Discharge Air (55F db, Saturated). 1240 ft elevatio HEATCOST is the rate of heating BTU. peak hours.-ELECCOST is the rate of electricity during offMeasured KW is the addition <br /> of Supply Fan and Return Fan energy. 5 4 3 2 1 KWTON is the efficiency of the entire Chilled Water plant (DX Units).23.6937=5.5454 BTU/lb of dry air) -, Saturated). 1240 ft elevation. <br /> (29.2391ENTHALPHY is the difference in enthalpy of Mixed Air (76F db, 50% RH) and Discharge Air (55F db HEATCOST is the rate of heating BTU. peak hours.-ELECCOST is the rate of electricity <br /> during offMeasured KW is the addition of Supply Fan and Return Fan energy. 5 4 3 2 <br /> <br />EXHIBIT D <br />FACILITY OPERATING PARAMETERS & <br />UTILITY SAVINGS CALCULATION METHODS <br /> <br />Northbound Liquor Store <br /> <br />Energy Calculations - Optimum and Schedule Start/Stop Strategy <br />HVACHRS HRSOCC BASELINE PROPOSED SAVINGS <br /> <br />SUPPLY O.A. Measured Baseline Proposed Savings Fan Energy Ventilation Cooling Fan Energy Ventilation Cooling Fan Energy Ventilation Cooling <br /> <br />AHU # AREA SERVED <br />CFM CFM KW Hrs/Wk Hrs/Wk Hrs/Wk KWH Therms KWH KWH Therms KWH KWH Therms KWH <br /> <br />RTU-1 0 5000 1,000 2.98 168.0 102.0 66 26,068 2,291 9,406 15,827 1,391 5,711 10,241 900 3,695 <br /> <br />RTU-2 0 3400 600 2.98 168.0 102.0 66 26,068 1,375 5,644 15,827 835 3,426 10,241 540 2,217 <br /> <br /> <br />TOTAL 52136 3666 15050 31654 2226 9137 20482 1440 5912 <br />Assumptions <br /> <br /> <br />VARIABLES CALCULATIONS <br />FAN ENERGY (KWH/YR.) <br />See Table Above ...PRESENT HRS/WK OF SYSTEM OPERATION (HVACHRS) <br />See Table Above ...HRS/WK OF ACTUAL BUILDING OCCUPANCY (HRSOCC) = FANKW * HVACHRS * WPY <br />0 ...HRS/WK OF SCHEDULED FOR WARMUP/COOLDOWN (WUCD) <br /> <br />52 ...WKS/YR OF AIR SYSTEM OPERATION (WPY) FAN ENERGY COST ($/YR.) <br />See Table Above …Measured KW / Data Logger KW (FANKW) = FAN ENERGY * ELECCOST <br />...ELECTRICITY UNIT ($) COST/KWHR (ELECCOST) <br /> <br />4977 ...HEATING HRS/YR FROM WEATHER DATA (HHPY) VENTILATION (BTU/YR.) <br />See Table Above ...TOTAL SUPPLY FAN CFM (CFM) <br />= HVACHRS * (HHPY/168) * OACFM * 1.08 * (HTSPUNOC-AVEDBT) <br />See Table Above …TOTAL OA CFM (OACFM) <br /> <br />62 ...UNOCCUPIED HRS. SPACE HEATING SETPOINT (HTSPUNOC) <br />VENTILATION COST ($/YR.) <br />27.9 ...AVERAGE O.A. TEMP. DURING HEATING SEASON (AVEDBT) = VENTILATION COST * HEATCOST <br />80% Heating Eff <br /> <br />1.2 …CHILLER EFFICIENCY IN KW/TON (KWTON) COOLING (KWH/YR.) <br />2462 ...COOLING HRS/YR FROM WEATHER DATA (CHPY) <br />= (HVACHRS * CWPY * OACFM * 4.5 * ENTHALPY / 12,000) * KWTON <br />14.65 ...COOLING WEEKS PER YEAR (CWPY) = (CHPY/168) <br /> <br />8.49 …COOLING ENTHALPY DELTA (ENTHALPY) COOLING COST ($/YR.) <br /> <br />= COOLING COST * ELECCOST <br /> <br /> <br /> <br />Westbound Liquor Store <br /> <br />Energy Calculations - Optimum and Schedule Start/Stop Strategy <br />HVACHRS HRSOCC BASELINE PROPOSED SAVINGS <br /> <br />SUPPLY O.A. Measured Baseline Proposed Savings Fan Energy Ventilation Cooling Fan Energy Ventilation Cooling Fan Energy Ventilation Cooling <br /> <br />AHU # AREA SERVED CFM CFM KW Hrs/Wk Hrs/Wk Hrs/Wk KWH Therms KWH KWH Therms KWH KWH Therms KWH <br /> <br />RTU-1 0 6000 1,200 2.98 168.0 102.0 66 26,068 2,749 11,287 15,827 1,669 6,853 10,241 1,080 4,434 <br /> <br />RTU-2 0 6000 1,200 2.98 168.0 102.0 66 26,068 2,749 11,287 15,827 1,669 6,853 10,241 1,080 4,434 <br /> <br /> <br />TOTAL 52136 5499 22575 31654 3339 13706 20482 2160 8869 <br />Assumptions <br /> <br /> <br />VARIABLES CALCULATIONS <br />FAN ENERGY (KWH/YR.) <br />See Table Above ...PRESENT HRS/WK OF SYSTEM OPERATION (HVACHRS) <br />See Table Above ...HRS/WK OF ACTUAL BUILDING OCCUPANCY (HRSOCC) = FANKW * HVACHRS * WPY <br />0 ...HRS/WK OF SCHEDULED FOR WARMUP/COOLDOWN (WUCD) <br /> <br />FAN ENERGY COST ($/YR.) <br />52 ...WKS/YR OF AIR SYSTEM OPERATION (WPY) <br />See Table Above …Measured KW / Data Logger KW (FANKW) = FAN ENERGY * ELECCOST <br />...ELECTRICITY UNIT ($) COST/KWHR (ELECCOST) <br /> <br />4977 ...HEATING HRS/YR FROM WEATHER DATA (HHPY) VENTILATION (BTU/YR.) <br />See Table Above ...TOTAL SUPPLY FAN CFM (CFM) <br />= HVACHRS * (HHPY/168) * OACFM * 1.08 * (HTSPUNOC-AVEDBT) <br />See Table Above …TOTAL OA CFM (OACFM) <br /> <br />62 ...UNOCCUPIED HRS. SPACE HEATING SETPOINT (HTSPUNOC) <br />VENTILATION COST ($/YR.) <br />27.9 ...AVERAGE O.A. TEMP. DURING HEATING SEASON (AVEDBT) <br />= VENTILATION COST * HEATCOST <br />80% Heating Eff <br /> <br />1.2 …CHILLER EFFICIENCY IN KW/TON (KWTON) <br />COOLING (KWH/YR.) <br />2462 ...COOLING HRS/YR FROM WEATHER DATA (CHPY) <br />= (HVACHRS * CWPY * OACFM * 4.5 * ENTHALPY / 12,000) * KWTON <br />14.65 ...COOLING WEEKS PER YEAR (CWPY) = (CHPY/168) <br /> <br />8.49 …COOLING ENTHALPY DELTA (ENTHALPY) <br />COOLING COST ($/YR.) <br /> <br />= COOLING COST * ELECCOST <br /> <br />EXHIBIT D Page 23 of 27 <br /> <br />