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Fun Engineering problem, load calc
storage
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Replies: 23
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Oculus Spirit [85339]
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Fun Engineering problem, load calc
Jan 27, 2021, 11:00 AM
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If I have 25 housing units, and each unit has 3 1-ton units (12,000 btus), and I am in the desert (middle east), and I have 2 shower units and 2 toilet units (hot water + HVAC) and I have miscellaneous lighting and outlets and I'm gonna run these hookups 400 ft or so.
What size generator do I need?
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All-In [42878]
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Just one of them Honda 2200s and deep cycle marine battery.***
Jan 27, 2021, 11:03 AM
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Oculus Spirit [85339]
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This is exactly how I ran my house (Fridge, tv, internet)
Jan 27, 2021, 11:10 AM
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after the last hurricane.
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Oculus Spirit [81061]
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One about this size
Jan 27, 2021, 11:04 AM
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Preferably a long way from any neighborhoods
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All-In [43728]
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NONE.
Jan 27, 2021, 11:04 AM
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Sounds like you just need a multi-pronged surge protector and a really long extension cord. I can help you with the length of cord in feet if you can give me the mileage to the nearest electrical outlet.
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CU Medallion [66079]
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What wattage and supply voltage ?
Jan 27, 2021, 11:05 AM
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JFC, these civil and mechanical guys
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All-In [46825]
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a big one
Jan 27, 2021, 11:05 AM
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HTH
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All-In [31896]
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I would estimate about 500kW-600kW to be safe....
Jan 27, 2021, 11:11 AM
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pretty sure generators in that range will be 3-phase, so you'll need to try to equally load each phase as best as possible.
Give me your address to send my invoice.
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Oculus Spirit [85339]
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Yes, it would be 3 phase. I initially thot 150kW
Jan 27, 2021, 11:17 AM
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but coworker calcs 500kW and I'm all like how?
I want to sayHVAC is pulling 1.5kW X 3 = 4.5 + 0.5 for outlets and lights...so 5kW perRLB.
25X5 + double the showers and toilets (4X10). This gets me to 165kW. Let's call it 175kW and add 40% for safety and say 250kW....so now I am at 250kW and we gonna call it 500? Seems pretty big.
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Oculus Spirit [81897]
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0.5kW for outlets and lights? ROFL.***
Jan 27, 2021, 11:25 AM
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Oculus Spirit [85339]
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40X12 building, yeah I rounded, but I rounded a 1kW up to
Jan 27, 2021, 11:37 AM
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1.5kW then multiplied X 3....So theoretically, I have 5kW for a single building with 3 one ton units, some led fixtures, and a couple laptops plugged in, some phones charging.
This is pretty much sleeping only, also why I'm asking whatcha think.
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All-In [31896]
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Oculus Spirit [85339]
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Our split units have a difference in efficiency***
Jan 27, 2021, 12:02 PM
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All-In [31896]
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Hall of Famer [21940]
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1.21 jigawatts
Jan 27, 2021, 11:11 AM
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All-In [43728]
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jigawatt
Jan 27, 2021, 11:18 AM
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jigawho?
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Heisman Winner [105590]
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Do you need any gerbils, I know a guy
Jan 27, 2021, 11:14 AM
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Oculus Spirit [78876]
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I heard eating lots of celery will increase your load.***
Jan 27, 2021, 11:19 AM
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CU Medallion [64837]
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Zinc and Lysene also.
Jan 27, 2021, 12:22 PM
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Just ask my buddy, Peter North.
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Oculus Spirit [78876]
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thick ropes.***
Jan 27, 2021, 12:30 PM
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Heisman Winner [135917]
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The desert you say?
Jan 27, 2021, 11:20 AM
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4 camels on treadmills hooked to 10 alternators ought to do it.
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CU Medallion [53243]
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Re: this is easy.........
Jan 27, 2021, 11:38 AM
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desert = hot
hot = sun
sun = solar
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CU Medallion [54758]
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7
Jan 27, 2021, 2:19 PM
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DUH
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All-In [40656]
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Solar power
Jan 27, 2021, 11:54 AM
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Boom.
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Replies: 23
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