Saturday, August 21, 2010
cell phone,our environment
Friday, August 20, 2010
DME : Alternative for Cleaner Fuel
The potential applications of DME as alternative fuel are listed as follows;
- DME can be used as a fuel for thermal power generation. During burning process, DME is a fuel that does not produce SOx or particulate with extremely small emission of NOx and CO2. Apart from that, the performance and reliability of DME in power generation is comparable to natural gas. This fact has been approved by General electric, Hitachi and Mitsubishi which utilize DME as fuel in their gas turbines.
- DME can be used as substitute for diesel as the the cetane rating is high; being 55-60, very high oxygen content, cheaper than diesel, requires very low injection pressure and produce little pollution from combustion process. The DME tests are currently conducted by Volvo and Ford Europe
- DME can be used as LPG substitute as it has quite similar properties with LPG. So, most of LPG facilities can be utilized for DME.
- DME can be used as fuel for domestic cooking and heating. DME can be blended with LPG and used without modifications to equipment or distribution pipelines.
- DME has potential as fuel for fuel cells as it is favourable on the heat balance and low formation of reaction heat.
Monday, August 16, 2010
Hybrid Technology: Key Towards Sustainable Mobility?
So, what about this hybrid vehicle? Hybrid vehicle refers to vehicle that is powered by more than one power source. Technically, hybrid vehicles can be categorized into two classes; series hybrids and parallel hybrids.
Series hybrids have a gas engine that powers the generator. The generator then charges the batteries and powers the electric motor. The gasoline engine doesn't power the vehicle on its own. The electric motor runs all the time and the gas engine comes on only when needed. This vehicle gets better mileage around town, where the electric motor is doing most of the work.
The parallel kind has a fuel tank for the gas engine and batteries for the electric motor. Both the engine and the electric motor can turn the transmission and power the vehicle. The small gas engine runs the car and the electric motor comes on when needed to boost power. This is typically needed for increasing speed, merging and passing other vehicles.
If you are enthusiastic about cars as well as the future of our environment, or at least you love to look at green engineering, it is worth to look at some of the available design of hybrid concept cars and recently launced hybrid cars in current market.
NISSAN LEAF (NOW ON SALE)
PORSCHE 918 SPYDER HYBRID SUPER CAR (HYBRID SUPER CAR WITH ELECTRIC PLUG-IN)
TOYOTA 3RD GENERATION OF PRIUS HYBRID
Sunday, April 25, 2010
ReCYCLEd paper i made my own!





~~NO plastic BAG day~~~

As from what I know till now, supermarket always gives their plastic bags FREE!. But then I realize.. why not I just carry all the stuff without a plastic.. after all, its not a wet stuff though..in addition, I can save the EARTH too! But customer will need to pay 10 cent for a plastic bag if they insist on having one. Well, I DO support on the “No plastic Bag Days” but it should be made known to consumers. I saw many others caught by surprise at the cashier’s line.
To those who do not know how these plastic bags is harmful to us..let consider the following shocking facts about plastic shopping bags..
- plastic bags are made of polyethylene
- Polyethylene is a petroleum product
- production contributes to air pollution and energy consumption
- Four to Five trillion plastic bags are manufactured each year
- Americans use over 380 billion polyethylene bags per year
- Americans throw away approximately 100 billion polyethylene bags per year
- Of those 100 trillion plastic bags, 1% are recycled
- it takes 1000 years for polyethylene bags to break down
- as polyethylene breaks down, toxic substances leach into the soil and enter the food chain
- approximately 1 billion seabirds and mammals die per year by ingesting plastic bags
- plastic bags are often mistaken as food by marine mammals. 100,000 marine mammals die yearly by eating plastic bags
- these animals suffer a painful death, the plastic wraps around their intestines or they choke to death
- plastic bags choke landfills
this is a good video to watch...5 star one!
http://www.youtube.com/watch?v=Ci9PC8s-r2Q&feature=related
Friday, April 23, 2010
RICH people POOR earth??!

Thursday, April 22, 2010
Electric Cars: Pros and Cons

The burning of fossil fuels from vehicles will emit a variety of pollutants into the earth's troposphere. Two of the pollutants that are mostly emitted are hydrocarbons and nitric oxide. These pollutants can be harmful to all living life and the environment. Therefore, replacing vehicles having an internal combustion with electric vehicles is seen by some as a solution to this problem.
Comparing both types of vehicle, the electric vehicles is seen to be more environmental friendly and are less polluting compared to the internal combustion engine vehicle. This is because electric vehicles uses whatever electricity is delivered by their electrical grid operator. The source of electricity from the power grid can be drawn from renewable energy such as hydro and wind. Therefore, the electric cars are as clean as the grid. The electric vehicles also reduce greenhouse gas emissions and eliminate petroleum. Thus, it helps to reduce fossil fuel usage despite the fact that electricity is largely generated by fossil fuels. Because even fossil fueled-fired power plants are more efficient than a car's internal combustion engine, the electric car is more energy efficient and produces less overall pollution. Even using electricity from coal, an electric car is 4 percent more efficient than a gasoline burning version of the same car.
Other than that, because all cars required battery replacement eventually, the disposal of lead-acid batteries used in cars with combustion engine is more hazardous to the environment compared to disposing lithium or nickel-based batteries of electric cars. Electric cars also have a lower or no demand for many of the hazardous, polluting fluids used in a conventional car, such as motor oil. Electric vehicles typically have less vibration and noise pollution than a vehicle powered by an internal combustion engine, whether it is at rest or in motion. Therefore, people thought that it is better to replace the internal combustion engine vehicles with the electric vehicles.
I think, with some modification to the electric vehicles, it can help to abate the problems. With the advancement of technology nowadays, other alternatives and method of operating vehicles can be developed in order to protect our environment.
So guys, what is your opinion on this matter? Do you think electric vehicles are better than conventional vehicles?
http://www.associatedcontent.com/article/2115395/the_benefits_of_electric_cars_outweigh.html?cat=27,
http://www.ehow.com/facts_4883957_why-electric-cars-better-environment.html)