PD: Anyone having trouble reaching the GMH blog please advise at javs@ieee.org. Thanks.
Jos?45 said:
- Thread starter georgios
- Start date
wind turbines
Update??
So "georgios"... you have my undivided attention. Is there anything new you'd like to share?
I especially like your idea of storing energy mechanically (versus batteries). I have been calculating a system using two water reservoirs... one on ground or under ground and one at altitude and use the gravity of the water pumped up at times of high energy production to produce energy at times of no wind. Needless to say that we'd be looking at huge masses of water and/or hights. thus I'd love to hear more about your idea of compressing and decompressing a gaz.
I think that a home with no grid hook up should be able to be serviced by 5 kW/h at any time and for an unrestricted time period to make the system appealing not just to limited aplications... keep in mind this is an AC region.
... J-D.
georgios said:
So "georgios"... you have my undivided attention. Is there anything new you'd like to share?
I especially like your idea of storing energy mechanically (versus batteries). I have been calculating a system using two water reservoirs... one on ground or under ground and one at altitude and use the gravity of the water pumped up at times of high energy production to produce energy at times of no wind. Needless to say that we'd be looking at huge masses of water and/or hights. thus I'd love to hear more about your idea of compressing and decompressing a gaz.
I think that a home with no grid hook up should be able to be serviced by 5 kW/h at any time and for an unrestricted time period to make the system appealing not just to limited aplications... keep in mind this is an AC region.
... J-D.
Energy storage alternatives by Georgios.
Hola J D Sauser,
The BATTERY STORAGE SYSTEM is well known and practiced world wide. Here
are the "specs" ;
1. Initial purchase cost - relatively moderate.
2. Maintenance - High if flooded type is used.
3. Maintenance - low if sealed type, AGM batteries are the best.
4. Quality - varies on type and make.
5. Performance - depends on AH capacity-large battery bank is best.
6. Replacement - number of years vs type - AGM type = 10-15 years.(best)
7. Misc - toxic gas emmisions, leaks and disposal problems.
8. System elect power losses approx 30% at best.
The WATER STORAGE SYSTEM is found in a handful of locations in the
world. This type of storing kinetic energy does not refer to existing water
dams. Simply, any excess power produced can be stored by pumping
water at a higher reservoir. The "head" created provides gravity force thru
a penstock pipeline to feed a water turbine at the bottom. The asynchronous
generator delivers its rated power at 1800 rpm. The losses of this system
are 30-35%. The cost can vary as many factors affect it. Generally, it is
a high cost solution but once built it will power the load(house, factory etc)
without the need of batteries or inverter. The power output is pure sine wave
with a harmonic distortion below 4%. All the components are off the shelf
items - nothing special about it. Here is the specs of power vs water;
SMALL TURBINE MEDIUM TURBINE LARGE TURBINE
Discharge 0.1 - 0.3 cubm/sec 0.1 - 1.4 cubm/sec 1.0 - 3.5 cubm/s
Head 2 -15 meters 2 - 15 meters 2 - 15 meters
Power 5 - 25 KW 5 - 100 KW 10 - 200 KW
Legend.
-------
cubm/sec means cubic meters per second. Above quantities appear at first
to be large but really are not.
The COMPRESSED AIR STORAGE is widely used for industrial application only.
There is nothing available as an "off the shelf" system. I am working on this
with limited success so far. The main drawback is sourcing a high pressure
compressor to achieve 1550 psi at a reasonable cost. The remaining parts
of the system are easily found all over the world. Losses are projected at
30%. Again, this system eliminates the need for batteries & inverter. High
quality power is typically the final output.
The good news is that in a couple of months my website will be posted
on DR1 for the first residential - commercial wind turbines available for
sale. I can not disclose any more info about this untill a paid DR1 banner
is posted.
Thanks for your reply,
Georgios.
J D Sauser said:
Hola J D Sauser,
The BATTERY STORAGE SYSTEM is well known and practiced world wide. Here
are the "specs" ;
1. Initial purchase cost - relatively moderate.
2. Maintenance - High if flooded type is used.
3. Maintenance - low if sealed type, AGM batteries are the best.
4. Quality - varies on type and make.
5. Performance - depends on AH capacity-large battery bank is best.
6. Replacement - number of years vs type - AGM type = 10-15 years.(best)
7. Misc - toxic gas emmisions, leaks and disposal problems.
8. System elect power losses approx 30% at best.
The WATER STORAGE SYSTEM is found in a handful of locations in the
world. This type of storing kinetic energy does not refer to existing water
dams. Simply, any excess power produced can be stored by pumping
water at a higher reservoir. The "head" created provides gravity force thru
a penstock pipeline to feed a water turbine at the bottom. The asynchronous
generator delivers its rated power at 1800 rpm. The losses of this system
are 30-35%. The cost can vary as many factors affect it. Generally, it is
a high cost solution but once built it will power the load(house, factory etc)
without the need of batteries or inverter. The power output is pure sine wave
with a harmonic distortion below 4%. All the components are off the shelf
items - nothing special about it. Here is the specs of power vs water;
SMALL TURBINE MEDIUM TURBINE LARGE TURBINE
Discharge 0.1 - 0.3 cubm/sec 0.1 - 1.4 cubm/sec 1.0 - 3.5 cubm/s
Head 2 -15 meters 2 - 15 meters 2 - 15 meters
Power 5 - 25 KW 5 - 100 KW 10 - 200 KW
Legend.
-------
cubm/sec means cubic meters per second. Above quantities appear at first
to be large but really are not.
The COMPRESSED AIR STORAGE is widely used for industrial application only.
There is nothing available as an "off the shelf" system. I am working on this
with limited success so far. The main drawback is sourcing a high pressure
compressor to achieve 1550 psi at a reasonable cost. The remaining parts
of the system are easily found all over the world. Losses are projected at
30%. Again, this system eliminates the need for batteries & inverter. High
quality power is typically the final output.
The good news is that in a couple of months my website will be posted
on DR1 for the first residential - commercial wind turbines available for
sale. I can not disclose any more info about this untill a paid DR1 banner
is posted.
Thanks for your reply,
Georgios.
Wouldn't another gaz be better?
Thanks for your in depth response, Georgios.
Instead of air, wouldn't an other type of gaz be better? Some gasses seem to be easier to compress into liquid state... airconditioners do that all day long?
... J-D.
Thanks for your in depth response, Georgios.
Instead of air, wouldn't an other type of gaz be better? Some gasses seem to be easier to compress into liquid state... airconditioners do that all day long?
... J-D.
Business plan by Georgios
Hola Philbrick03,
Please read the last paragraph of #84 reply under "wind turbines" thread.
Just 2 weeks ago, me and a good friend of mine who lives in Cabrera for
many years, registered the first green renewable energy company in the
Dominican Republic. This company will provide the following goods and
services to everyone living in this country;
1. Wind turbines from 200w to 21KW.
2. Tilt-up & monopole towers.
3. 2V-6V-12V AGM batteries.
4. Inverters.
5. Extra sine wave devices for electronics.
6. DC submersible well pumps.
7. Bridge rectifiers for DR unstable grid power.
8. Wind-diesel hybrid systems for large projects (100KW to 10MW).
9. State of the art master control systems c/w PLC (100KW to 10MW).
The website is 50% completed. A banner will be posted on DR1 so everyone
can finally have access to reliable products and professional advice as to
sizing their needs when it comes to the power supply of their homes or
businesses.
I would like to thank everyone that took the time to read my comments on
the "wind turbines" thread. In a couple of months (or less) all the info c/w
pricing will be available in the upcoming website.
Georgios.
philbrick03 said:
Hola Philbrick03,
Please read the last paragraph of #84 reply under "wind turbines" thread.
Just 2 weeks ago, me and a good friend of mine who lives in Cabrera for
many years, registered the first green renewable energy company in the
Dominican Republic. This company will provide the following goods and
services to everyone living in this country;
1. Wind turbines from 200w to 21KW.
2. Tilt-up & monopole towers.
3. 2V-6V-12V AGM batteries.
4. Inverters.
5. Extra sine wave devices for electronics.
6. DC submersible well pumps.
7. Bridge rectifiers for DR unstable grid power.
8. Wind-diesel hybrid systems for large projects (100KW to 10MW).
9. State of the art master control systems c/w PLC (100KW to 10MW).
The website is 50% completed. A banner will be posted on DR1 so everyone
can finally have access to reliable products and professional advice as to
sizing their needs when it comes to the power supply of their homes or
businesses.
I would like to thank everyone that took the time to read my comments on
the "wind turbines" thread. In a couple of months (or less) all the info c/w
pricing will be available in the upcoming website.
Georgios.
Thank you, Georgios, for (1) working so hard to bring your vision of this technology to reality in the DR, which needs many more such efforts; (2) keeping us here at DR1 regularly posted during your journey from concept to implementation; (3) posting responsibly and in line with DR1 rules. All very much appreciated.
The Environment Forum Moderator :glasses:
The Environment Forum Moderator :glasses:
Freon properties.
My dear friend J D Sauser,
Freon is the gas used for air cond, fridges etc. These appliances recycle freon
and thru a heat exchanger provide cooling.
When an air motor is coupled to a generator, the compressed air is consumed
by the air motor to spin the generator. Therefore, compressed air is lost not
recycled.
Another gas under investigation is Hydrogen. We all know about electrolysis.
When DC power is fed to 2 electrodes dipped in water, hydrogen bubbles
appear on the positive(+) side. Hydrogen is vaccumed, filtered and stored
in a series of pressurized vessels. This type of fuel has almost the same
properties as propane or natural gas. It can be used to power a natural gas
generator, fuel cars or cook meals. Typically, it takes $100 of electricity to
produce $50 worth of Hydrogen. So far it sounds insane. If the electricity
comes from renewable sources(wind, solar), it begins to make sence! The
equipment (Hydrogen generator, purifier, storage vessel etc) are not "off
the shelf " items. They are very expensive.
Hydrogen is the fuel of the future...not any time soon anyway.
Georgios.
J D Sauser said:
My dear friend J D Sauser,
Freon is the gas used for air cond, fridges etc. These appliances recycle freon
and thru a heat exchanger provide cooling.
When an air motor is coupled to a generator, the compressed air is consumed
by the air motor to spin the generator. Therefore, compressed air is lost not
recycled.
Another gas under investigation is Hydrogen. We all know about electrolysis.
When DC power is fed to 2 electrodes dipped in water, hydrogen bubbles
appear on the positive(+) side. Hydrogen is vaccumed, filtered and stored
in a series of pressurized vessels. This type of fuel has almost the same
properties as propane or natural gas. It can be used to power a natural gas
generator, fuel cars or cook meals. Typically, it takes $100 of electricity to
produce $50 worth of Hydrogen. So far it sounds insane. If the electricity
comes from renewable sources(wind, solar), it begins to make sence! The
equipment (Hydrogen generator, purifier, storage vessel etc) are not "off
the shelf " items. They are very expensive.
Hydrogen is the fuel of the future...not any time soon anyway.
Georgios.