Northeast Agriculture Technology Corporation Dairy Energy Calculators Calculating Energy use and Energy Conservation Measure Savings.

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Presentation transcript:

Northeast Agriculture Technology Corporation Dairy Energy Calculators Calculating Energy use and Energy Conservation Measure Savings

Northeast Agriculture Technology Corporation Vacuum Pumps Calculating Vacuum Pump Capacity Vac Pump Capacity (cfm) = base cfm cfm/milking unit cfm/milking unit safety factor base cfm = 35

Northeast Agriculture Technology Corporation Vacuum Pump Horsepower Calculating Horsepower requirement for a vacuum system vac. pump Hp. = vac. pump capacity (cfm) 10 cfm/Hp

Northeast Agriculture Technology Corporation Energy Savings of an ASD on a Vacuum Pump Savings calculator for a vacuum pump ASD Annual savings (kWh) = [Hp of vac pump – (0.25 x no. of milking units)] x (0.9 x hrs of operation/day x 365 days/yr

Northeast Agriculture Technology Corporation Milk Pre-Cooler Calculator to determine savings of well water pre-coolers Annual savings (kWh/yr) = 0.3 kWh saved/cwt of milk x cwt of milk cooled/yr

Northeast Agriculture Technology Corporation Savings of a Precooler with an ASD on the Milk Pump Estimated annual energy savings using a well water precooler with an ASD on the milk pump Annual savings (kWh/yr) = 0.45 kWh saved/cwt of milk cooled x cwt of milk cooled/yr

Northeast Agriculture Technology Corporation Lighting Calculators Calculating required lamp watts Lamp watts required = required lumens/sq ft coefficient of util. X watts x sq ft of lighted area X rated lamp lumens 1.20 light degradation factor x 1.13 ballast factor

Northeast Agriculture Technology Corporation Lighting Calculators Calculator to determine how many light fixtures are required: No. of light fixtures = lamp watts required watts/fixture

Northeast Agriculture Technology Corporation Livestock Fountains Calculator to determine annual energy use by a heated livestock fountain: 1) Inside a shelter Annual kWh = 3.5 kWh/cow/yr 2) Outside Annual kWh = 5 kWh/cow/yr

Northeast Agriculture Technology Corporation High Efficiency Ventilation fan Energy Savings Calculator to determine savings from installing higher efficiency fan: Hi efficiency fan savings (kWh/yr) = Total cfm old _ total cfm new x 1 kW cfm/watt old cfm/watt new 1000 watts X hours fans operate/year