Orange County NC Website
gy O AVOID COSTL Y VAL VE LEAKAGE <br /> Case study <br /> D <br /> 1 You can't find the cost of a valve on a price list <br /> SIZE OF <br /> LEAK AIR STEAM WATER <br /> Number of Total Cost Number of Total Cost Number of Total Cost <br /> Diameter Cubic Feet Waste /Month lbs. wasted Waste /Month gallons wasted Waste /Month <br /> Inches /Month $0.029 /Month $10.356 /Month $4.650 <br /> at 75 PSIG 100 at 160 PSIG 1000 at 60 PSIG 1000 <br /> 1/2" 13,468,000 $3,940 1,219,280 $12,627 1,524,100 $7,087 <br /> 3/8" 7,558,500 $2,211 684,290 $7,086 855,360 $3,977 <br /> 114" 3,366,990 $985 304,820 $3,157 381,020 $1,772 <br /> 1/8" 0 824,570 $241 1 74,650 1 $773 93,310 1 $434 <br /> 1/16" • 213,000 $62 19,280 1 $200 24,110 $112 <br /> 1/32" 52,910 $15 4,790 $50 5,990 $28 <br /> based <br /> on $.08 kwh <br /> Notes: <br /> total loss /cfm month 3,366,990 1/4" leak from above table <br /> cfm 3.4 source Johnson Control Manual, A2000; 37j4 <br /> min /hr 60 source Johnson Control Manual, A2000; 37j4 <br /> cf /hr. /hp 204 3.4.60 <br /> hp required /month 16,505 <br /> hp required /hour 22.61 <br /> total kwh required 12,313 <br /> hp 1 <br /> kw 0.746 <br /> hrs /month 730 <br /> Cost /kwh 0.08 Average cost, includes demand charges ; <br /> total cost for loss $985.01 <br /> Cost /100 cfm @.08 kwh 0.029254902 <br /> Energy Investments that Beat the DOW <br /> t�,ja <br />