Motociklai alternatyviais varikliais
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ezhiukas
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amerikonai testuoja zero - http://www.motorcycle-usa.com/20/6487/M ... -Ride.aspx
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El Traxo
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Ir bene pirmas recall'as: 
Zero Motorcycles issued a recall notice with the CPSC on the 2009 Zero X and Zero MX. The throttles on the affected bikes can become stuck in the open position or become disconnected. In the electric bikes’ “Easy” or “0-25” modes, a stuck throttle may unexpectedly provide full power to the motor upon turning on the engine. Zero Motorcycles has received three reports of unexpected acceleration, with minor injuries suffered in one case.
Zero Motorcycles issued a recall notice with the CPSC on the 2009 Zero X and Zero MX. The throttles on the affected bikes can become stuck in the open position or become disconnected. In the electric bikes’ “Easy” or “0-25” modes, a stuck throttle may unexpectedly provide full power to the motor upon turning on the engine. Zero Motorcycles has received three reports of unexpected acceleration, with minor injuries suffered in one case.
How does you do?
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mindaugasa vol.2
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Ladabiena,
siandien noriu pasakyti, kad tuojau is alternatyvaus kampelio mesime vandenilines jegaines lauk!
pasirodo nelabai alternatyvu, ee.... t.y. efektyvu
pvz. jei pagamintus 1000kW elektros nutransportuosime laidais i kazkur, tada kas liko pakrausime i batareikas ir tas batareikas panaudosime motopyrkes ratams sukti, tai mums vis dar bus like apie 2/3 tu kilowatu
taciau jei tuos pacius 1000kW panaudosime vandeniliu pagaminti, ji suspausti, sandeliuoti ir nutransportuoti iki motopyrkes, tai ratus suks jau tik puse pradinio kiekio energijos.
ir aplamai teisinga butu vandenili laikyti energijos transportavimo budu, o ne energijos saltiniu, kadangi vandenilio dujos jegaineje panaudojamos elektrai gaminti, kuri ir suka ratus.
vienzo, kas prasizios apie vandenili, tam banas! :yvl:storms, tikiuosi emei ne vandeniline karve? >:/
siandien noriu pasakyti, kad tuojau is alternatyvaus kampelio mesime vandenilines jegaines lauk!
pasirodo nelabai alternatyvu, ee.... t.y. efektyvu
pvz. jei pagamintus 1000kW elektros nutransportuosime laidais i kazkur, tada kas liko pakrausime i batareikas ir tas batareikas panaudosime motopyrkes ratams sukti, tai mums vis dar bus like apie 2/3 tu kilowatu
taciau jei tuos pacius 1000kW panaudosime vandeniliu pagaminti, ji suspausti, sandeliuoti ir nutransportuoti iki motopyrkes, tai ratus suks jau tik puse pradinio kiekio energijos.
ir aplamai teisinga butu vandenili laikyti energijos transportavimo budu, o ne energijos saltiniu, kadangi vandenilio dujos jegaineje panaudojamos elektrai gaminti, kuri ir suka ratus.
vienzo, kas prasizios apie vandenili, tam banas! :yvl:storms, tikiuosi emei ne vandeniline karve? >:/
cross cojones PC
velgi priklauso nuo to kaip tas vandenilis gaunamas (ir turbut dar nuo to kaip poto naudojamas)
Jei tarkim vandenili gamina dumbliai tai pradines energijos kiekis smarkiai priklauso nuo ukio efektyvumo beigi dydzio.
Transportavimas beablejo yra problema/nuostoley. O bet taciau siulau alternatyva palikt*
*su salyga kad nesnekesim apie vandenili gaunama naudojant iskasenu kura.
Jei tarkim vandenili gamina dumbliai tai pradines energijos kiekis smarkiai priklauso nuo ukio efektyvumo beigi dydzio.
Transportavimas beablejo yra problema/nuostoley. O bet taciau siulau alternatyva palikt*
*su salyga kad nesnekesim apie vandenili gaunama naudojant iskasenu kura.
"Beer is proof that God loves us and wants us to be happy."
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mindaugasa vol.2
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pramoniniai vandenilio gavybos budai yra du: metano kazkokia ten isskaidymo procedura, kurios metu tersalu pagaminama daugiau negu leidzia sveikas protas, todel sitas budas nesvarstomas.Arvis wrote:velgi priklauso nuo to kaip tas vandenilis gaunamas (ir turbut dar nuo to kaip poto naudojamas)
Jei tarkim vandenili gamina dumbliai tai pradines energijos kiekis smarkiai priklauso nuo ukio efektyvumo beigi dydzio.
Transportavimas beablejo yra problema/nuostoley. O bet taciau siulau alternatyva palikt*
*su salyga kad nesnekesim apie vandenili gaunama naudojant iskasenu kura.
ir antrasis: vandeniaus skaidymas, kuriam reikalingas didelis kiekis elektros, o ignalina uzdaryta (nors ir toliau veikia)
kiti budai nebuvo aptarti
cross cojones PC
mindaugas akivaizdziai remiasi ziniom kurios prie smetonos alementoriuj buvo surasytos. Vienok mokslas nestovi vietoj.
http://en.wikipedia.org/wiki/Biological ... production
http://en.wikipedia.org/wiki/Biological ... production
"Beer is proof that God loves us and wants us to be happy."
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ezhiukas
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as tai palaikau pirmininka. Imho vandenilis yra tik tarpinis etapas, sugalvotas automobiliu pramones kad nereiktu beveik nieko keist (kalbu ne apie elektros generavima naudojant fuel cell, bet apie vandenilio deginima tradiciniuose vidaus degimo motoruose). Fuel cell kaip technologija irgi savo parametrais nusileidzia batareikems. Taip kad skaitau vandenilis yra neefektyvi ir neperspektyvi technologija. Nugales elektra ir batareikes (o gal naujos kartos kondensatoriai)
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mindaugasa vol.2
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ziurime Trends in Biotechnology, (02 March 2010 Copyright © 2010 Elsevier Ltd. All rights reserved.):
"Hydrogen gas provides exceptional value as an energy carrier and industrial feedstock, but currently is produced entirely by reforming fossil fuels. Biological hydrogen production (BioH2), which offers the possibility of being renewable and carbon neutral, can be achieved by photosynthesis, fermentation, and microbial electrolysis cells. This review introduces the principles, advantages and challenges of each approach to BioH2. Photosynthetic BioH2 is the ultimate renewable source, since it directly uses inexhaustible resources: sunlight energy and electrons from H2O. However, it presents major technical challenges, particularly due to oxygen sensitivity. Fermentative BioH2 offers a high production rate, but poor conversion efficiency from the organic substrate to H2. The microbial electrolysis cell can achieve high conversion efficiency, but is an emerging technology"
Vienu zodziu, apibendrinant, siandiena technologijos leidzia gaminti vandenili arba pigiai, arba dieliais kiekiais
niekas nelauks, kol ten bakterijos pribezdes ..
gal kadanors tas technologijas ir pagamins. bais jau tos bakterijos jautrios, tik biski kas nepatinka, ir nebezda vandenilio
kas netikit, prasome:
Conclusion
Hydrogen gas is seen, as a future energy carrier by virtue of the fact that it does not evolve the "greenhouse gas" CO2 in combustion, liberates large amounts of energy per unit weight in combustion, easily converted to electricity, and is an inexhaustible resource. Biological hydrogen production has several advantages over other conventional hydrogen production processes. It requires the use of a simple photobioreactor akin to a transparent closed box, with low energy requirements and it is very cost effective. Electrochemical hydrogen production via solar battery-based water splitting requires the use of solar batteries with high-energy requirements. Low conversion efficiencies of biological systems can be compensated for, by low energy requirements and reduced initial investment costs. The most appealing aspect of the biological hydrogen production is the source of hydrogen, which is nothing but water. With the existing knowledge of bioengineering it possible to obtain sufficient amount of hydrogen that on combustion will liberate energy and therefore could act as a substitute of coal in several operations [68]. Reported analysis suggests that cost of photobiological produced hydrogen ($25/m3) is much lower compared to that produced by photovoltaic splitting of water ($170/m3) [69]. Though there are various hindrances with cyanobacterial hydrogen production and utilization but potential solutions also seem to exist readily. With the global population increasing at a fast and steady rate, both the environment and the earth's natural resources cannot continue to be exploited without development of alternative sources of energy. Capability of individual nations to produce hydrogen will eliminate monopolies on the fuel industries, and, price increases due to political conditions. The hydrogen production by cyanobacteria although offers much promise in this respect, more research is needed before this commodity can be effectively utilized.
"Hydrogen gas provides exceptional value as an energy carrier and industrial feedstock, but currently is produced entirely by reforming fossil fuels. Biological hydrogen production (BioH2), which offers the possibility of being renewable and carbon neutral, can be achieved by photosynthesis, fermentation, and microbial electrolysis cells. This review introduces the principles, advantages and challenges of each approach to BioH2. Photosynthetic BioH2 is the ultimate renewable source, since it directly uses inexhaustible resources: sunlight energy and electrons from H2O. However, it presents major technical challenges, particularly due to oxygen sensitivity. Fermentative BioH2 offers a high production rate, but poor conversion efficiency from the organic substrate to H2. The microbial electrolysis cell can achieve high conversion efficiency, but is an emerging technology"
Vienu zodziu, apibendrinant, siandiena technologijos leidzia gaminti vandenili arba pigiai, arba dieliais kiekiais
niekas nelauks, kol ten bakterijos pribezdes ..
gal kadanors tas technologijas ir pagamins. bais jau tos bakterijos jautrios, tik biski kas nepatinka, ir nebezda vandenilio
kas netikit, prasome:
Conclusion
Hydrogen gas is seen, as a future energy carrier by virtue of the fact that it does not evolve the "greenhouse gas" CO2 in combustion, liberates large amounts of energy per unit weight in combustion, easily converted to electricity, and is an inexhaustible resource. Biological hydrogen production has several advantages over other conventional hydrogen production processes. It requires the use of a simple photobioreactor akin to a transparent closed box, with low energy requirements and it is very cost effective. Electrochemical hydrogen production via solar battery-based water splitting requires the use of solar batteries with high-energy requirements. Low conversion efficiencies of biological systems can be compensated for, by low energy requirements and reduced initial investment costs. The most appealing aspect of the biological hydrogen production is the source of hydrogen, which is nothing but water. With the existing knowledge of bioengineering it possible to obtain sufficient amount of hydrogen that on combustion will liberate energy and therefore could act as a substitute of coal in several operations [68]. Reported analysis suggests that cost of photobiological produced hydrogen ($25/m3) is much lower compared to that produced by photovoltaic splitting of water ($170/m3) [69]. Though there are various hindrances with cyanobacterial hydrogen production and utilization but potential solutions also seem to exist readily. With the global population increasing at a fast and steady rate, both the environment and the earth's natural resources cannot continue to be exploited without development of alternative sources of energy. Capability of individual nations to produce hydrogen will eliminate monopolies on the fuel industries, and, price increases due to political conditions. The hydrogen production by cyanobacteria although offers much promise in this respect, more research is needed before this commodity can be effectively utilized.
cross cojones PC
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ezhiukas
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nebuciau tuo tikras. Siuo metu batareikes turi 3 problemas:Teo wrote:gal ir nusileidzia kol kas, bet tai yra ateities technologija. paliubomu virsu imsi visokie super-ultra-mini energijos generatoriai pries energijos kaupikliusezhiukas wrote: Fuel cell kaip technologija irgi savo parametrais nusileidzia batareikems.
- talpa
- pakrovimo greitis
- pakrovimu ciklu skaicius
Visos jos yra issprendziamos. Talpa kai kuriuose modeliuose jau dabar yra pakankamai didele. Ciklu skaiciaus noretusi didesnio, bet is bedos galima ir toki naudoti. Didziausia problema pakrovimo greitis. Nors kai kuriuose modeliuose jis jau yra smarkiai pagerintas. Bet sita problema galima apeiti ne kraunant baterijas, o padarius ju keitimo punktus. Kitos problemos kaip kad kaina, svoris yra antraeiles.
Kam gaminti vandenili, ji pilti i baka, laikyti suspaudus aukstame slegyje, poto galvoti kaip is jo pagaminti elektra, jei galima paprasciausiai ikist kistuka ir pasikrauti. Vandenilis turi kur kas daugiau problemu nei batareikes.
Isvis mano nuomone idomiausia technologija yra net ne batareikes, o nano kondensatoriai. Jei pavyktu padidinti ju talpa kad uztektu bent kokiam 100 km, didelis pakrovimo greitis ir neribotas pakrovimo ciklu skaicius uztikrintu jiems puikia ateiti.