Electric Power Cube: Difference between revisions
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=General= | |||
*Use 5hp compressor motor, 220AC - see [[Electric Motors]], 3450 running RPM | *Use 5hp compressor motor, 220AC - see [[Electric Motors]], 3450 running RPM | ||
*Calculations - from [[Hydraulic Calculations]]- have hp to drive a pump = PSI*GPM/1714 => GPM=hp*1714/PSI=5*1714/3000 | *Calculations - from [[Hydraulic Calculations]]- have hp to drive a pump = PSI*GPM/1714 => GPM=hp*1714/PSI=5*1714/3000=2.86 gal | ||
*In order to not burn out motor - overload protection on motor? Yes, compressor motors typically have it. | *In order to not burn out motor - overload protection on motor? Yes, compressor motors typically have it. | ||
*Pump to get - [https://www.surpluscenter.com/Hydraulics/Hydraulic-Pumps/Gear-Pumps/0-24-cu-in-Dynamic-GPF2004S9A-Hydraulic-Pump-9-7786-C.axd] but cw or ccw? Motor is CCW, so pump must be CW. | |||
=18650 Case= | |||
*Take a form factor comparable to common power tool batteries, say at 20V - 6 AH - $22 [https://www.amazon.com/Jialitt-Replacement-Cordless-Lithium-Ion-DCB127-2/dp/B07ZQB53L9/ref=sr_1_9?crid=8J6E70ZZFGN0&keywords=12+ah+for+dewalt&qid=1701048978&sprefix=12+ah+for+dewalt%2Caps%2C110&sr=8-9#customerReviews]. | |||
**For 10kW for 6 minutes - need 1 kWhr. 4 AH at 20v gives 80W for 1hr (year right). | |||
**Realistic for good cells: 8 WH for 1 cell [https://batteryuniversity.com/article/bu-501a-discharge-characteristics-of-li-ion] at 2C discharge. Would need 120 for 1 kWhr. 2C discharge means 8A discharge *120=1 kW discharge rate max. Each 4 AH dewalt bat is 10 cells [https://cibpartners.co.za/the-truth-about-dewalt-10vmax-batteries/#:~:text=If%20you%20look%20inside%20a,10%20cells%20x%203.6%20volts.]. Need 12 of these for 1 kWhr. | |||
**Dewalt 5AH battery is 100Wh, 10A sustainedfor 30 minutes or 200W for 30 minutes. For 10 kW, would need 50 of these batteries (500 individual cells). | |||
**50x$22=$1100. | |||
**Use this as a battery charging station for onsite power. | |||
=See Also= | |||
*[[Powercube]] | |||
*[[Advanced Powercube Construction Set]] | |||
*[[Power Cute]] - prototype built at OSE | |||
Latest revision as of 02:01, 27 November 2023
General
- Use 5hp compressor motor, 220AC - see Electric Motors, 3450 running RPM
- Calculations - from Hydraulic Calculations- have hp to drive a pump = PSI*GPM/1714 => GPM=hp*1714/PSI=5*1714/3000=2.86 gal
- In order to not burn out motor - overload protection on motor? Yes, compressor motors typically have it.
- Pump to get - [1] but cw or ccw? Motor is CCW, so pump must be CW.
18650 Case
- Take a form factor comparable to common power tool batteries, say at 20V - 6 AH - $22 [2].
- For 10kW for 6 minutes - need 1 kWhr. 4 AH at 20v gives 80W for 1hr (year right).
- Realistic for good cells: 8 WH for 1 cell [3] at 2C discharge. Would need 120 for 1 kWhr. 2C discharge means 8A discharge *120=1 kW discharge rate max. Each 4 AH dewalt bat is 10 cells [4]. Need 12 of these for 1 kWhr.
- Dewalt 5AH battery is 100Wh, 10A sustainedfor 30 minutes or 200W for 30 minutes. For 10 kW, would need 50 of these batteries (500 individual cells).
- 50x$22=$1100.
- Use this as a battery charging station for onsite power.
See Also
- Powercube
- Advanced Powercube Construction Set
- Power Cute - prototype built at OSE