Porsche - ympäristöaktivistin unelma-auto

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HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Erilaiset hybridit ja ekoautot ovat nykyisin muotia, mutta ehkä ei tulisi unohtaa myöskään pitkään palvellutta polttomoottoria ja sen käyttämää polttoainetta, bensaa. Ainakin Car Lust -blogin Chris Hafner näkee kehittyneessä polttomoottoriteknologiassa paljon myönteistäkin:


In Defense of the Gasoline-Powered Internal Combustion Engine

So, why am I defending the internal combustion engine? Because, despite this relative inefficiency, the gasoline-powered engine is an amazing machine. Let me explain by telling you what you already know--today's cars can do amazing things with a small amount of fuel.

Think of a one-gallon container of liquid--a typical milk container, for example. With only that much gasoline, depending on conditions and driving style, a brand new Honda Fit will drive 40 miles, possibly more, before it runs out of fuel. Please suspend your ennui for a moment; I'm going to do my best to persuade you that this truly is remarkable.
----

So, how is this possible? Well, for one thing, the gasoline-powered internal combustion engine is fundamentally a century-old technology in the same way that high-powered turboprop airplane is fundamentally a century-old technology. In both cases, the basic, primitive beginning has transformed into something much more sophisticated, thanks to billions of dollars of development, innovation from some extremely smart people, and a century of customer- and warfare-driven pressure to improve. New materials, variable valve timing, turbocharging, fuel injection, direct injection, computerized engine management, and other high-tech wizardry have turned the old internal combustion engine into a highly efficient source of power. Though, to be fair, these same forces likely would have driven some amazing strides in steam or electric cars as well, had either of those technologies emerged as the standard in the 1900s.

Boring old gasoline has also turned out to be a pretty fantastic fuel. It's easily transportable, burns relatively cleanly, and contains a lot of energy. This is one problem with a lot of the possible alternatives to gasoline--one gallon of gasoline is less expensive and contains more energy than liquid natural gas, liquid hydrogen, methanol, or ethanol. You get more bang (literally!) for your buck with gasoline.


http://www.carlustblog.com/2010/01/in-d ... ngine.html
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Tasavallan Presidentin Kultaranta VIII on tekniikaltaan hyvin perinteinen edustuslaiva. Nyt olisi aika vaihtaa venettä. Kultaranta IX voisi näyttää vaikkapa tällaiselta:

Built in Germany, over 24 million dollars went into the construction of this huge, sun-powered boat. Planet Solar is enormous by necessity, it had to be made big enough to accommodate the 5,382 square feet of solar panels that blanket the eco-yacht. This solar array provides about 103 kW of power, which is five times more than the boat needs to run silently at its average speed of 8 knots. When the sun is not shining, the solar boat will rely on energy stored in the world's largest lithium-ion battery - a 13 ton giant, capable of storing 1,300 kilowatt-hours of energy when fully charged. The Planet Solar team says this will enable the boat to travel at 7 knots in complete darkness, and do so for about three days straight, before the battery bank is completely exhausted.

http://yachtpals.com/planetsolar-mega-yacht-9035

Tuollaisella paatilla ympäristötietoisen presidenttimme kelpaisi nayttää saaristoamme vaikkapa Suomen Valkoisen Ruusun ritarirille R. Pachaurille. Hinnankaan ei pitäisi olla este, onhan kyseessä sentään Suomen ja EU:n ilmastopolitiikan lippulaiva! :)
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Golfia harrastavalla ilmasto- ja ympäristöaktivistilla on tietenkin oltava kunnon ajopeli myös pelikentillä. Onneksi tarjolla on aito uusikaupunkilainen tuote, joka niittää mainetta jopa jenkeissä. Hintakin on kohdallaan, vain vajaat 40.000 euroa.

http://www.foxnews.com/sports/2010/04/0 ... rt-priced/

PS
Onkohon joku jo tarjonnut näitä Pachaurin käyttöon TERI instituutin yksityiskentälle New Delhiin, tai alarmistien opit omaksuneelle Obamalle (joka tämän aamun uutisen mukaan on tähän mennessä käyttänyt kahdeksan kertaa enemmän ajastaan golfin pelaamiseen kuin edeltäjänsä Bush)? :shock:
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Musiikkia harrrastaville ilmastouskovaisille Roskilden festivaali tarjoaa tulevana kesänä paljon mielenkiintoista puuhastelua:

Green Footsteps is Roskilde Festival's climate campaign that gives the audience the opportunity to choose a more climate-friendly lifestyle.

Despite a disappointing climate summit in 2009, the climate changes remain an inescapable reality and Roskilde Festival therefore puts extra focus on green initiatives with the campaign Green Footsteps.


Climate community

Roskilde Festival's climate-friendly area with lots of green activities.

Near the campsite Green Bootcamp you find the area Climate Community that offers thrilling installations and lots of climate-friendly activities for you to participate in.

you can meet a variety of climate experts and operators who in a fun, challenging and informative way will give you ideas as to how you live a CO2-neutral life.

In addition, you can charge your mobile by biking on a exercise bike, wash your clothes at 30° degrees hot water, take a hot CO2-neutral shower, relax in recycled furniture in the gleam of LED lighting and be supplied with electricity from the Community Climate’s own generator, powered by solar panels and wind turbines.


Take three green footsteps and get a spot at the climate-friendly camping area Green Bootcamp.

If you make a special effort to keep the planet in balance, you can camp at Roskilde Festival’s Green Bootcamp that is located at camping East and is a little green oasis surrounded by trees and bushes. There are only 500 spots at the bootcamp and they’ll be distributed on a ‘first come first serve’ basis. To qualify for one of the spots, you have to take three green footsteps.

Odeon is Roskilde Festival's sustainable stage and in 2009 it was greener than ever before.

How about experiencing a sustainable concert with climate-friendly LED-lighting and screens, while you are eating an organic hot-dog or enjoying a fresh cup of fair trade coffee or an organic cocktail? Or how about hanging out in the large sitting installation that collects rainwater and has lighting powered by solar cells?

The Odeon stage is the festival's sustainable stage, and the entire area surrounding the stage joined in on this focus. Roskilde festival has prepared for this approach in the past two years, and in 2009 the area could bloom with pure focus on ecology, fair trade and sustainability.


http://www.roskilde-festival.dk/uk/

PS
Mielenkiintoista muuten, että festivaalin pääsponsori Tuborg (Carlsberg) on voittanut festivaalin Climate World Cupin :

With the highest rate in Climate World Cup, Carlsberg was the obvious winner of group 3. Carlsberg's CO2 emissions fell 4.6 percent in a year and the brewery takes an active role in relation to the climate changes. Thereby, Carlsberg is the company of the group that lies the least about its green profile.

Tanskalaiset ovat aina olleet hyviä kauppamiehiä/naisia!

Ai niin, WWF:n palava panda kuuluu myös Roskilden kesän kohokohtiin:

At Roskilde Festival, Burning Panda will encourage festival participants to shout out and make noise to draw attention to climate change. The climate campaign is a partnership between WWF World Wildlife Fund and The Tryg Fund. The goal is to give politicians a clear message that Danes stand together against global warming.
:roll:
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Näyttää siltä, etteivät sähkö- ja hybridiautot sittenkään ole niin "vihreitä" kuin on annettu ymmärtää:

The myth and cost of a 'green' electric car

Almost everyone knows that electric cars will be only as green as the power that drives them. And the jobs? According to one provocative new analysis, they will go mostly to China.
---

The Dog & Lemon Guide, which bills itself as “the world's toughest car buyer's guide,” has published a 168-page report, titled The Emperor's New Car, a no-nonsense analysis of the coming environmental and industrial impact of electric cars. Edited by auto expert Clive Matthew-Wilson and screened by international scientific advisers, it documents both the green myth and the industrial mythology.

“The central premise behind the electric car movement – that electric cars will be powered from ‘green' sources – is essentially wishful thinking,” it concludes. “... Globally, most electricity is produced using highly environmentally damaging sources and much of it is produced from fossil fuels.” Indeed, the report says, electricity will grow dirtier before it begins to grow cleaner.
---

“Due to massive government investment,” the report says, “China is likely to be the first country to mass-produce electric cars at ... [competitive] prices. ... These cars are likely to be produced using environmentally destructive materials and techniques, in factories powered by non-renewable and heavily polluting forms of energy.”
---

Car makers want electric cars because of the enormous subsidies they will generate. Ten thousand dollars per car, Mr. McGuinty, won't do it: In a report released in December, the U.S. National Academy of Sciences calculated that the average electric car will require a subsidy of $18,000 (U.S.) to make it competitive with the average gas car.
:?

http://www.theglobeandmail.com/report-o ... le1541449/

http://dogandlemon.com/site/2010/03/28/ ... al-threat/
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Tässä olisi Tasavallan Presidentille erinomainen lennokki - Avro Business Jet Explorer Four - edustuskäyttöön. Ajatelkaapa, miten upeaa olisi, jos Tarja Halonen voisi esitellä helteistä Suomeamme koneen näköalaterassilta Suomen Valkoisen Ruusin komentaja Pachaurille tai vaikkapa itäisen naapurimaamme Putin-isännälle.

Sanomattakin on selväa, että TH-mallissa olisi lisävarusteena puulämmitteinen savusauna

http://www.dailymail.co.uk/sciencetech/ ... tform.html

PS
Koneen moottorien sanotaan olevan erittäin ympäristö- ja ilmastoystävällisiä
:mrgreen:
Kivimies
Viestit: 68
Liittynyt: 26.10.2009, 11:10:09

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja Kivimies »

HMV kirjoitti:Erilaiset hybridit ja ekoautot ovat nykyisin muotia, mutta ehkä ei tulisi unohtaa myöskään pitkään palvellutta polttomoottoria ja sen käyttämää polttoainetta, bensaa. Ainakin Car Lust -blogin Chris Hafner näkee kehittyneessä polttomoottoriteknologiassa paljon myönteistäkin:


In Defense of the Gasoline-Powered Internal Combustion Engine

[i]So, why am I defending the internal combustion engine? Because, despite this relative inefficiency, the gasoline-powered engine is an amazing machine.



Millä perusteella tuossa esitetään väite "suhteellisesta tehottomuudesta"? Minkälaisiin hyötysuhteisiin polttomoottorit ja tässä tapauksessa Otto-moottorit yltävät? En pidä väitettä näin suoralta kädeltä oikeana.
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

"Sähköautot ovat seuraava iso juttu, ja tulevat aina olemaan", toteaa Robert Bryce äskettäin ilmestyneessä "Power Hungry: The Myths of 'Green' Energy" -kirjassaan.

There have been impressive headlines about electric cars from my brilliant colleagues in the media. The Washington Post said, "Prices on electric cars will continue to drop until they're within reach of the average family."

That was in 1915.

In 1959, The New York Times said, "Electric is the car of the tomorrow."

In 1979, The Washington Post said, "GM has an electric car breakthrough in batteries, now makes them commercially practical."

I'm still waiting.

"The problem is very simple," Bryce said. "It's not political will. It's simple physics. Gasoline has 80 times the energy density of the best lithium ion batteries. There's no conspiracy here of big oil or big auto. It's a conspiracy of physics."


Entäpä tuulivoima?:

"Wind does not replace oil. This is one of the great fallacies, and it's one that the wind energy business continues to promote," Bryce said.

The problem is that windmills cannot provide a constant source of electricity. Wind turbines only achieve 10 percent to 20 percent of their maximum capacity because sometimes the wind doesn't blow.

"That means you have to keep conventional power plants up and running. You have to ramp them up to replace the power that disappears from wind turbines and ramp them down when power reappears."

Yet the media rave about Denmark, which gets some power from wind. New York Times columnist Thomas Friedman says, "If only we could be as energy smart as Denmark."

"Friedman doesn't fundamentally understand what he's talking about," Bryce said.

Bryce's book shows that Denmark uses eight times more coal and 25 times more oil than wind.

If wind and solar power were practical, entrepreneurs would invest in it. There would be no need for government to take money from taxpayers and give it to people pushing green products.

Even with subsidies, "renewable" energy today barely makes a dent on our energy needs.

Bryce points out that energy production from every solar panel and windmill in America is less than the production from one coal mine and much less than natural gas production from Oklahoma alone.

But what if we build more windmills?

"One nuclear power plant in Texas covers about 19 square miles, an area slightly smaller than Manhattan. To produce the same amount of power from wind turbines would require an area the size of Rhode Island. This is energy sprawl." To produce the same amount of energy with ethanol, another "green" fuel, it would take 24 Rhode Islands to grow enough corn.
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

"The Earth Angel" - ilmastoaktivistin toivelelu:

"Every industry has an obligation to do as much as they can to reduce the effects of climate change and by developing this new technology we hope that others will follow suit and look for alternative ways to design and manufacture their products," they added.

Chris O'Connor is the brains behind the power-storing technology that he said could be applied to any small power device, such as electric toothbrushes.

He said climate change had been his primary motivation rather than sexy fun.


http://www.abs-cbnnews.com/lifestyle/12 ... e-pleasure
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Lentäminen ei aina ole kovin ympäristöystävällistä. Nyt on kuitenkin ilmasto- ja ympäristötietoisille liike-,virka- ja lomamatkalaisille tarjolla vihreä vaihtoehto, jota saatujen kokemusten perusteella lämpimästi voi suositella:

One company in Burlington, Vermont, has set out to create the most green private aviation company ever. Heritage Flight has for 25 years broken down travel barriers. Offering aircraft charters from Turbo-Props to Bombardier Challengers, they fly you around the world, anywhere, anytime. No lines, no hassle. International returns allow you to pass through customs hassle-free. Pilots will even change routes mid-flights if you change your mind between say the French Rivera and the Italian Seaside. (Tämä ei onnistu Finnairilla!)

Now, their sister company, Heritage Aviation, is combining the ultimate in an eco-friendly aircraft rest stop with 24/7 convenient travel with their brand new 79,000 square-foot Fixed Base Operation at the Burlington International Airport. The center offers a wealth of services to transient pilots, passengers, and aircraft owners. The building, made from stone and textiles from sustainable sources presents a gym, game room, media room, business center, and snooze rooms for pilots passing through.

And best of all, it's one of the country's first L.E.E.D. Certified hangars, running off of on-site renewable-energy. "We are tremendously proud of our new FBO, from the hangar that needs little to no electrical lighting during daytime shifts, to the LEKTRO tugs that provide exceptionally safe aircraft handling while still minimizing our carbon footprint," said Heritage Aviation President, Chris Hill.

While being one of North East's largest and luxurious FBO, the site is partially powered by solar and wind energy. In fact, it has established one of the first community scale wind turbines at an aviation facility. And 98% of rain water is collected on one of the largest green roofs in the area, which is reused to clean aircraft.

:mrgreen:

http://www.luxist.com/2010/06/02/the-gr ... te-flying/
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Sähköautot eivät todellakaan ole mikään todellinen vaihtoehto:


ELECTRIC cars are unlikely ever to replace conventional cars and could even be worse for the environment, experts have warned.

Millions of pounds are currently being pumped into developing battery-operated vehicles as a greener alternative to petrol or diesel cars.

But engineering magazine E&T for members of the Institute of Engineering and Technology claims the switch to electric cars would not be viable because of the limited life of batteries and the need for frequent recharging.

An investigation found electric cars could be restricted to less than 100 miles while batteries would only last two years.

Peter Miller, director of electrical and electronic engineering at vehicle consultants Ricardo, said: “You could drive and then find it takes a day to recharge with a domestic electric socket.

“To get a vehicle that behaves the same way as a petrol or diesel model is not viable for the foreseeable future.”

The magazine said a battery capable of the same level of driving as a standard Ford Focus or Volkswagen Golf would cost £100,000 and would weigh 1.5 tonnes.


http://www.dailyexpress.co.uk/posts/vie ... vironment-
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Eko-Porschella ja muilla hybrideillä ajelevien ympäristöaktivistien on hyvä näin keskellä kuuminta kesää muistaa: ilmastointia ei pidä käyttää, vaikka kuinka hiki tulisi pintaan. Ilmastointi autoissa, toimistoissa ja kodeissa nimittäin lisää global warmingia!

“And it’s a vicious circle: the reliance on A.C. is contributing to global warming, Cox says, which in turn creates more of a demand for it.”

Got that? Using your air conditioning is warming the planet, which requires you to use your air conditioning, which… Well, ain’t that a dilly?


http://orangepunch.ocregister.com/2010/ ... ody/30299/
:shock:
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Vinkki tosi ilmastoaktivistille: Aja Priuksellasi (tai vaihtoehtoisesti hybridi-Porschellasi) maalikauppaan, osta paljon valkoista maalia, ja maalaa talosi katto valkoiseksi. Näin osallistut maapallomme kuumenemista vastaan käytävään taisteluun. USA:n edistyksellinen ilmastoministeriö suosittelee! Hulppean talon Kalifornian rannikolta äskettäin hankkinut Al Gore lienee on varmaankin jo pannut maalarit töihin...


The Department of Energy will paint the roofs white on its buildings to save energy and fight global warming.

"Cool roofs are one of the quickest and lowest cost ways we can reduce our global carbon emissions and begin the hard work of slowing climate change,” said Chu, a Nobel laureate and former director of Lawrence Berkeley National Laboratory
.

http://www.bizjournals.com/sanfrancisco ... aily6.html
Lorentz3
Viestit: 1884
Liittynyt: 23.12.2009, 13:55:45

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja Lorentz3 »

HMV kirjoitti:Vinkki tosi ilmastoaktivistille: Aja Priuksellasi (tai vaihtoehtoisesti hybridi-Porschellasi) maalikauppaan, osta paljon valkoista maalia, ja maalaa talosi katto valkoiseksi. Näin osallistut maapallomme kuumenemista vastaan käytävään taisteluun.

Hyvä vinkki, lisäksi ilmastointikuluissakin säästyy pitkä penni.

http://www.sciencedaily.com/releases/20 ... 162945.htm
HMV
Viestit: 581
Liittynyt: 02.02.2010, 08:27:28

Re: Porsche - ympäristöaktivistin unelma-auto

Viesti Kirjoittaja HMV »

Kattojen maalaaminen valkoisiksi ei riitä. On paljon muuta maalattavaa. Mallia voi ottaa esimerkiksi tästä:

http://www.telegraph.co.uk/earth/enviro ... hange.html

Tavallisesti lutettavista lähteistä kerrotaan, että hallitus suunnittelee laajaa ilmasto-ohjelmaa, jonka tavoitteena on peittää mahdollisimman suuri osa maastamme valkoisella värillä. Tämän Valkoinen Suomi -ohjelman avulla Suomi ottaisi itselleen johtoaseman EU:n ilmastotaistelussa. Ohjelma, jonka rahoitukseen on luvassa tukea EU:lta ja Maailmanpankilta, toteutetaan yhteistyössä Suomen maaliteollisuuden kanssa.

Hallituksen ilmastopoliittiset neuvonantajat ovat jo todenneet, että pitkät ja lumiset talvet - jolloin Suomi jo on valkoinen - saattavat edesauttaa Valkoinen Suomi -ohjelman tavoitteiden saavuttamista.

Tiettävästi Jorma Ollilan johtama Brändivaltuuskinta on ottanut myönteisen kannan Valkoinen Suomi -ohjelmaan, jonka arvellaan lisäävän Suomen tunnettuutta maailmalla.
:mrgreen:
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