Hydrogen Generator - Revision history

Eric: Minor Clarification

2021-08-01T00:00:04Z

Minor Clarification

← Older revision		Revision as of 00:00, 1 August 2021
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	*Spicer generator can be built for $1k. Balance of system may be $1k. Tank is $3k. + [[Honda Generator]] clone at about $500.		*Spicer generator can be built for $1k. Balance of system may be $1k. Tank is $3k. + [[Honda Generator]] clone at about $500.
	*Overall cost of $5.5k for 765 Whr for hydrogen. $7k/kW		*Overall cost of $5.5k for 765 Whr for hydrogen. $7k/kW
	*Compare to Compressed Air, 100Whr per $300 tank with cheapo air engine - need $2400 in tanks for compressed air, unless use regular compressor for 100 psi, + Air engine. [[Propane Tank]] ia $2700 for 1000 gal, can go up to 14 bar, as opposed to 300 cu ft for cylinder. 1000 gal to cu ft is 134 cu ft, x14 atm is 1876 cu ft - or 6 cylinders. Cylinders cost $1800 for that amount, so actually lower cost and more portable. Here it pays to have a higher efficiency air engine - if 150 W/tank - need 5 tanks to match the hydrogen route - or $1500. Air engine - $500 let's say - and compressor $500. $2500 for 750 Whr - much better than hydrogen. at $3.3k/kW.		*Compare to [[Compressed Air Energy Storage]], 100Whr per $300 tank with cheapo air engine - need $2400 in tanks for compressed air, unless use regular compressor for 100 psi, + Air engine. [[Propane Tank]] ia $2700 for 1000 gal, can go up to 14 bar, as opposed to 300 cu ft for cylinder. 1000 gal to cu ft is 134 cu ft, x14 atm is 1876 cu ft - or 6 cylinders. Cylinders cost $1800 for that amount, so actually lower cost and more portable. Here it pays to have a higher efficiency air engine - if 150 W/tank - need 5 tanks to match the hydrogen route - or $1500. Air engine - $500 let's say - and compressor $500. $2500 for 750 Whr - much better than hydrogen. at $3.3k/kW.
	For [[Pumped Hydroelectric Energy Storage]] - take a quick look at gravity storage, with 1/4 acre or 1000 sq meters, 2 m deep, or 1 meter usable. It is 1000 cubic meters of water, at 5 meter height (easy reach for most locations with hills) - we get MGH= 1000 cum 1000kg/cum 105=50,000,000 Joules. 13kWhr! By far the cheapest. 20% friction loss and 90% pelton and 90% electrical gen gets you 8 kW from that system! So even an 1/8 acre pond could do it, for 4 kWhr of power. DIY with your own bulldozer, this system costs $1500 for pipe, $1k for turbine, and $200 for gen, for under $3k, for 8 kWhr, or $375/kWhr - but over lifetime - negligible as it pays back for itself at $1/day, so we get free electricity after 5 years payback. And better with 3D printed pipe.		For [[Pumped Hydroelectric Energy Storage]] - take a quick look at gravity storage, with 1/4 acre or 1000 sq meters, 2 m deep, or 1 meter usable. It is 1000 cubic meters of water, at 5 meter height (easy reach for most locations with hills) - we get MGH= 1000 cum 1000kg/cum 105=50,000,000 Joules. 13kWhr! By far the cheapest. 20% friction loss and 90% pelton and 90% electrical gen gets you 8 kW from that system! So even an 1/8 acre pond could do it, for 4 kWhr of power. DIY with your own bulldozer, this system costs $1500 for pipe, $1k for turbine, and $200 for gen, for under $3k, for 8 kWhr, or $375/kWhr - but over lifetime - negligible as it pays back for itself at $1/day, so we get free electricity after 5 years payback. And better with 3D printed pipe.

Eric: Minor Clarification

2021-07-31T23:59:32Z

Minor Clarification

← Older revision		Revision as of 23:59, 31 July 2021
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	*Overall cost of $5.5k for 765 Whr for hydrogen. $7k/kW		*Overall cost of $5.5k for 765 Whr for hydrogen. $7k/kW
	*Compare to Compressed Air, 100Whr per $300 tank with cheapo air engine - need $2400 in tanks for compressed air, unless use regular compressor for 100 psi, + Air engine. [[Propane Tank]] ia $2700 for 1000 gal, can go up to 14 bar, as opposed to 300 cu ft for cylinder. 1000 gal to cu ft is 134 cu ft, x14 atm is 1876 cu ft - or 6 cylinders. Cylinders cost $1800 for that amount, so actually lower cost and more portable. Here it pays to have a higher efficiency air engine - if 150 W/tank - need 5 tanks to match the hydrogen route - or $1500. Air engine - $500 let's say - and compressor $500. $2500 for 750 Whr - much better than hydrogen. at $3.3k/kW.		*Compare to Compressed Air, 100Whr per $300 tank with cheapo air engine - need $2400 in tanks for compressed air, unless use regular compressor for 100 psi, + Air engine. [[Propane Tank]] ia $2700 for 1000 gal, can go up to 14 bar, as opposed to 300 cu ft for cylinder. 1000 gal to cu ft is 134 cu ft, x14 atm is 1876 cu ft - or 6 cylinders. Cylinders cost $1800 for that amount, so actually lower cost and more portable. Here it pays to have a higher efficiency air engine - if 150 W/tank - need 5 tanks to match the hydrogen route - or $1500. Air engine - $500 let's say - and compressor $500. $2500 for 750 Whr - much better than hydrogen. at $3.3k/kW.
	For ~~gravity storage~~ - take a quick look at gravity storage, with 1/4 acre or 1000 sq meters, 2 m deep, or 1 meter usable. It is 1000 cubic meters of water, at 5 meter height (easy reach for most locations with hills) - we get MGH= 1000 cum 1000kg/cum 105=50,000,000 Joules. 13kWhr! By far the cheapest. 20% friction loss and 90% pelton and 90% electrical gen gets you 8 kW from that system! So even an 1/8 acre pond could do it, for 4 kWhr of power. DIY with your own bulldozer, this system costs $1500 for pipe, $1k for turbine, and $200 for gen, for under $3k, for 8 kWhr, or $375/kWhr - but over lifetime - negligible as it pays back for itself at $1/day, so we get free electricity after 5 years payback. And better with 3D printed pipe.		For [[Pumped Hydroelectric Energy Storage]] - take a quick look at gravity storage, with 1/4 acre or 1000 sq meters, 2 m deep, or 1 meter usable. It is 1000 cubic meters of water, at 5 meter height (easy reach for most locations with hills) - we get MGH= 1000 cum 1000kg/cum 105=50,000,000 Joules. 13kWhr! By far the cheapest. 20% friction loss and 90% pelton and 90% electrical gen gets you 8 kW from that system! So even an 1/8 acre pond could do it, for 4 kWhr of power. DIY with your own bulldozer, this system costs $1500 for pipe, $1k for turbine, and $200 for gen, for under $3k, for 8 kWhr, or $375/kWhr - but over lifetime - negligible as it pays back for itself at $1/day, so we get free electricity after 5 years payback. And better with 3D printed pipe.

	=Current=		=Current=

Eric: Added a Category to the Page

2021-07-31T23:56:13Z

Added a Category to the Page

← Older revision		Revision as of 23:56, 31 July 2021
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	*[[Hydrogen Production]]		*[[Hydrogen Production]]
	*[[Solar Hydrogen Chronicles]]		*[[Solar Hydrogen Chronicles]]

			[[Category: Hydrogen]]

Marcin: /* BOM */

2021-02-15T01:45:52Z

BOM

← Older revision		Revision as of 01:45, 15 February 2021
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	==BOM==		==BOM==

	'''System cost for 0.36 kg hydrogen production per day:'''		'''System cost for 0.36 kg hydrogen production per day is $7k raw, but $700 in the case of [[Production by the Masses]]:'''

	[[File:solarhydrogenbom.png\|400px]]		[[File:solarhydrogenbom.png\|400px]]

Marcin: /* BOM */

2021-02-15T01:43:59Z

BOM

← Older revision		Revision as of 01:43, 15 February 2021
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	==BOM==		==BOM==

	'''System cost for 0.36 kg hydrogen production per day:		'''System cost for 0.36 kg hydrogen production per day:'''
	'''
	[[File:solarhydrogenbom.png\|400px]]		[[File:solarhydrogenbom.png\|400px]]

Marcin: /* BOM */

2021-02-15T01:43:47Z

BOM

← Older revision		Revision as of 01:43, 15 February 2021
Line 26:		Line 26:

	==BOM==		==BOM==

			'''System cost for 0.36 kg hydrogen production per day:
			'''
	[[File:solarhydrogenbom.png\|400px]]		[[File:solarhydrogenbom.png\|400px]]

Marcin: /* BOM */

2021-02-15T01:42:23Z

BOM

← Older revision		Revision as of 01:42, 15 February 2021
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	==BOM==		==BOM==
			[[File:solarhydrogenbom.png\|400px]]

			[[File:solarhydrogenbom2.png\|400px]]

	=Sources=		=Sources=

Marcin: /* Mr. Spicer Version */

2021-02-15T01:41:05Z

Mr. Spicer Version

← Older revision		Revision as of 01:41, 15 February 2021
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	**Production rate - 1000W for 170 l/hr of hydrogen. Matches above electrolyzer pretty much exactly.		**Production rate - 1000W for 170 l/hr of hydrogen. Matches above electrolyzer pretty much exactly.
	*17024=4080 l/day. 4 cubic meters per day. Volume of 1000 gal propane tank is 3.8 cu m. This fills one propane tank in one day!		*17024=4080 l/day. 4 cubic meters per day. Volume of 1000 gal propane tank is 3.8 cu m. This fills one propane tank in one day!
			**4 cu m/11.2 = 0.36 kg hydrogen production per 24hr.

	=Solar Hydrogen Chronicles=		=Solar Hydrogen Chronicles=

Marcin: /* Numeracy */

2021-02-15T01:39:58Z

Numeracy

← Older revision		Revision as of 01:39, 15 February 2021
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	=Numeracy=		=Numeracy=
	*Hydrogen is 0.082 kg/cu m.		*Hydrogen is 0.082 kg/cu m.
			*Hydrogen is MW 2 g/mol.
			*Hydrogen is 11.2 cu m per kg at STP.
	*Spicer generator batch - 0.3 kg/day production.		*Spicer generator batch - 0.3 kg/day production.
	*Honda generator - 0.55 gal tank. 0.3 kg is about 0.3 gal fuel, so half a tank.		*Honda generator - 0.55 gal tank. 0.3 kg is about 0.3 gal fuel, so half a tank.

Marcin: /* Mr. Spicer Version */

2021-02-15T01:38:33Z

Mr. Spicer Version

← Older revision		Revision as of 01:38, 15 February 2021
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	*In Iowa - http://www.hydrogenwindinc.com/. Went out of business in the 90s.		*In Iowa - http://www.hydrogenwindinc.com/. Went out of business in the 90s.
	*See [[Solar Hydrogen Chronicles]] for more info on the Spicer system, which costs $200/cell for a 12 cell system.		*See [[Solar Hydrogen Chronicles]] for more info on the Spicer system, which costs $200/cell for a 12 cell system, p66.
	**Production rate - 1000W for 170 l/hr of hydrogen. Matches above electrolyzer pretty much exactly.		**Production rate - 1000W for 170 l/hr of hydrogen. Matches above electrolyzer pretty much exactly.
	*17024=4080 l/day. 4 cubic meters per day. Volume of 1000 gal propane tank is 3.8 cu m. This fills one propane tank in one day!		*17024=4080 l/day. 4 cubic meters per day. Volume of 1000 gal propane tank is 3.8 cu m. This fills one propane tank in one day!


			=Solar Hydrogen Chronicles=
			See p. 44 for system overview of an electrolyzer from the [[Solar Hydrogen Chronicles]]

			==BOM==

	=Sources=		=Sources=