--- In [email protected], Peter Lengyel <[EMAIL PROTECTED]> wrote: > "Deci nu trebuia sa va uitati la televiziunea maghiara sa invatati ce se > stie si in Romania ca este depasit de 20 de ani:))." > > Un savant din Statele Unite, personalitate care detine Premiul Nobel, cred ca in ceea ce afirma public poate sa fie o sursa de informatii, pareri care merita cunoscute. Desigur, asta nu face sa nu poata fi interesante si pareri ale unor oameni din Romania, zise in urma cu 20 de ani. Dar a afirma ca "se stie de 20 de ani ca este o linie moarta", intr-un domeniu in pline transformari, cu nenumarate solutii tehnice noi, ca si toate aceste tipuri de domenii, mi se pare cam hazardat. Apoi, cand sa trecut de la masini cu aburi la cele cu benzina, cred ca nu erau sute de milioane de autovehicule care consuma, 14-15 milioane de tone de (produse de) titei pe zi..., si de a caror functionare este dependenta civilizatia noastra actuala... > > Peter
Nu va suparati, intamplarea face sa lucrez in domeniu conex cu cele discutate.Si nu de ieri de azi sau maine...:) Domnia voastra se pare ca va faceti Religie din Stiinta.Ca Olah a luat premiul Nobel in Chimie are atat relevanta pentru Aplicatiile Metanolului in Industria de automobile cat au si Afirmatiile lui Emil Palade despre agricultura.Daca Olah are premiul Nobel in Chimie nu inseamna ca are ultimul cuvant in aplicatiile metanolului in automobile la fel cum Palade daca are Premiul Nobel in biologie celulara nu inseamna ca se pricepe la agricultura.Logic, nu?Ca in stiinta nu in Religie, adica exact cum nu faceti.... Ma pune pe ganduri despre utilitatea discutiei(cu cineva care probabil nu doreste sa invete si doar doreste sa aiba 'dreptate'/sa i se dea dreptate in toate') mai ales MODUL cum luati ca litera de Evanghelie cuvintele 'unui savant din Statele Unite'.Am senzatia ca v-ati facut Religie din Stiinta, adica exact ceea ce combateti la altii, aia faceti domnia voastra:-)... In primul rand ca in ce priveste valoarea de adevar a unei afirmatii stiintifice n-are nici o relevanta daca vine din US sau din Panama.Cum nu are nici o relevanta ca eu va scriu din Motor City sau ca sunt cetatean US, iar domnia voastra cititi cele scrise de mine la Somme-ul Francofoniei sau la Consiliul Europei unde nu pierdeti ocazia sa ne anuntati ca ati fost invitat... Cum am spus George(Gyorgy) Olah e cunoscut ca un 'avocat' al metanolului in detrimentul Hidrogenului ale carui dezavantaje le cam exagereaza.Cand v-am spus asta nu v-am spus bazat pe ce se stia in ROmania acum 20 de ani, asa cum gresit ati inteles, ci pe ce stiu acum si se intampla sa fiu inca in legatura cu domeniul...Cu Romania si 20 de ani in urma a fost doar un exemplu sa scot in evidenta ca nici Romania nu era un fund de lume ...unde oamenii sunt inapoiati, dobitoci, indobitociti de preoti, cum cred unii...BTW...si acum trebuie sa stea cu gura cascata sa primeasca 'lumina' de la unii preaplini de ei care se 'adapa' de la televiziunea maghiara cu generalitati, de exemplu... Daca vi se pare anormala aprecierea despre Olah si exagerarea dezavantajelor hidrogenului, nu-mi ramane decat sa constat ca n-ati auzit inca cum exista si in lumea stiintifica pareri pro si contra, si ca detineti adevarul aflat din gura 'unui savant din Statele Unite':)... Deci, a afirma ca metanolul e aproximativ, pe o linie moarta nu e hazardat ci e documentat.Daca vreti sa cititi si sa discutam va dau bibliografie pe adresa personala si va stau la dispozitie. Daca aveti cunostinte in domeniu va rog sa ma contraziceti documentat, tot pe adresa personala nu cu povesti de genul 'intr-un domeniu in pline transformari, cu nenumarate solutii tehnice noi'...'este hazardat'.Vreti sa le discutam, sa va explic, va repet pe personala....Daca nu, lasati transformarea Stiintei in Religie si cuvintelor unor 'savanti din Statele Unite(va dati seama?De unde? Tocmai din Statele Unite!Ptii, nu-mi vine sa cred ca ne-am luminat asa tare!:)) Cu salutari din Motor City, astept sa aflati/invatati si despre pareri pro si contra in teorii stiintifice in tehnica, etc...:) p.s.In general am oroare de amestecul orgoliului national in stiinta.Ca de ex. cum ca Olah ar avea mai multa dreptate pentru un maghiar, pentru ca e maghiar....Desi si aici incape discutie pentru ca Olah parca sa zic ca se traduce 'valahul' adica ne-ar duce cu gandul la romanii din Ungaria, poate maghiarizati, cine stie...evident ca n-are relevanta pentru discutia despre metanol... Despre metanol si probleme doar cateva randuri: (mai pe intelesul tuturor) http://www.procarcare.com/icarumba/resourcecenter/encyclopedia/icar_r esourcecenter_encyclopedia_fuels1.asp Methanol comes from natural gas, but the technology can produce it from coal, wood and a variety of other materials. Like ethanol, methanol raises the octane of gasoline and reduces engine "knock" or "ping", without affecting the efficiency of the catalytic converter. A 5% blend of methanol may raise the octane rating at the pump by 1-1.5 numbers. Methanol also reduces carbon monoxide exhaust emissions, but the trade-off can be high: Methanol has an adverse effect on fuel economy, especially in late model cars. A 5% blend of methanol with gasoline has an energy content 2.5% less than gasoline. Evaporative emissions rise substantially when methanol is blended with gasoline. In addition, methanol may increase the oxides of nitrogen emissions and affect the capacity of the charcoal in the evaporative emissions canister. Methanol causes both hot and cold weather drivability problems. Methanol can change the stoichiometric (chemically correct) air/fuel ratio in the fuel delivery system. The higher volatility of the fuel increases the chance of vapor lock in carbureted cars and the increased heat of vaporization of methanol increases cold start and stalling problems in winter. Methanol, when water is present even in trace (minute) amounts will separate gasoline into 2 layers-gasoline rich on top and alcohol and water on the bottom. The net effect is unsatisfactory car operation. Since the engine draws fuel from the bottom of the tank, it will not run properly, even at idle. Some refiners add heavier alcohol, known as "cosolvents", to counter the separation, but they are not 100% effective. Methanol has an effect on the parts of the fuel system and is measured more in time than in mileage. Rubber, plastic and metal fuel system components in most motor cars were designed for use with gasoline and are subject to attack by methanol blended fuels. Water tends to cling to methanol, and any water in the fuel tank will be carried through the entire fuel system. Metal components (excluding brass) are subject to water corrosion. Plastic and rubber compounds tend to swell, lose strength and stretch when subjected to high concentrations of methanol. La alt nivel: http://cobweb.ecn.purdue.edu/~jratts/che697m/ sau: http://www.sae.org/automag/features/fuelcells/fuelcell5.htm unde merita subliniat: Today, there is no central distribution infrastructure for methanol, neither in industry nor at the pumps. DaimlerChrysler estimates that it will cost about $400 million just to add methanol tanks to a third of the service stations in California, New York, and Massachusetts. It's estimated that each methanol installation would cost from $50,000-60,000 per station. "Who's going to pay?" is the question often heard. Others say the cost issue is overblown. Said one industry observer, "Even if gasoline is used for fuel cells, the gasoline formulation won't be the same we use today (it'll have less sulfur), so you'll still need to install a new gasoline tank, which costs from $20,000-30,000 for each service station. From that perspective, the cost issues surrounding methanol tank installation don't seem so dire." .... Meanwhile, doubts are growing over the viability of methanol as a consumer product, at least in the U.S. Said one well-placed expert who wanted to remain anonymous, "My sense is that methanol is more and more becoming a losing proposition. DaimlerChrysler is pushing it, but GM, Toyota, Honda, and Nissan seem to be lukewarm about it." *** sustineti [romania_eu_list] prin 2% din impozitul pe 2005 - detalii la http://www.doilasuta.ro *** Yahoo! 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