how to increase efficiency in biogas in vehicles?
339003
Methane can be removed by low temperature gas distillation.  The cost may not be worth it.
81119
Go tall it not only gives you more low end torque but adds horses in the entire power band. Not to mention if you get one thats ported it helps atomize the air/fuel mixture giving you better efficiency and power.
1072455
I suspect it depends on the volume of the flatus.  More gas = more methane.
931550
adjust the ratio of gas that mixes with air for combustion
92238
I know what you mean; the problem is there is such a variety of accessories for a diesel that changes the efficiencies.  Direct injected common-rail engines with turbochargers and intercoolers are usually more efficient than indirect-injected turbo-charged engines.  \n\nGasoline engines typically are rated at about 8%-10% efficiency, while diesels roughly are 11%-13% efficient.  It is all anecdotal evidence from many articles.  Nobody really has a good number because of variances of construction, etc.  Diesel also has a higher heating value per gallon than gasoline, so that accounts for some of the higher efficiency.
527012
It is not possible for usng slar energy directly. because the compresser operations want frequent input. ( Not continuose). In the form Solar electricity is possible. \n\nHow ever Vapour Absorption syastem is possible
49570
I pressume you are asking about biomass.\n\nConverting energy from one form to another is never 100% efficient.\nNot all the energy illuminating a plant will be fixed into manufactured organic chemicals (BIOMASS)\nOnly some of the energy available in organic chemicals (food) will be available for animals to build BIOMASS.\n\nAssume 100 units of light energy available, and a 10% energy transfer efficiency, then;\nSun to plant - 10 energy units fixed, and\nPlant to animal - 1 energy unit fixed.\nSo the amount of BIOMASS that could be made decreases dramatically at each trophic level.\n\nALSO - don't forget that some BIOMASS is RESPIRED by the organisms  at each trophic level and is therefore not available to the next level.\n\nNo surprise then that diagrams of biomass for the organisms in an ecosystem look like a pyramid, and that any ecosystem can only support very few top carnivores.
297496
I'm already half way there; a Vapor Chamber that converts Regular Pump Gasoline into Propane.The Problem is that it's Illegal to change anything on any Car from 1996 to the present, even if Emissions are Lowered, and Fuel Economy is Improved.100 parts of Air to 1 Part of Fuel, instead of 14.7 Parts of Air to 1 Part of Fuel, which is the Law! I've already built the Vaporizer Chamber, which is a Really Cool Gadget, and burning less Fuel would definitely make Life easier!
239402
Try creating alternative fuel. I'm reduced to cycling since the recent fuel price increase.
52429
One of the classic inefficiencies of cars of yore is the driveline design.  Take for instance a 1962 V-8 Impala with a hydramatic transmission and rear wheel drive.  The two-speed transmission always allowed slippage between the engine and the wheels, which caused energy loss in the transmission fluid being heated up in the torque converter during all driving situations.  They have cured that in today's automobiles by locking out the torque converter with an automatic clutch.  Putting a 90 degree angle between the input and output is also an energy sucker.  In more efficient front wheel drive cars, the axis of engine revolution is the same as the wheels.  This saves some energy as well. The final drive ratios of cars in the 60's was insane!  A cruising RPM of 3600 at highway speeds was not unheard of--and on a V8!!! Think of the gas going down the tubes.....  Modern cars reduce the final drive ratio and add overdrive to the transmission to reduce cruising speed RPM.  Less RPM means less air consumption and less fuel use.  In the 70's, they caught on and offered rear wheel drive cars with 2.73:1 rear end ratios to save gas.  This hurt acceleration, but was cheaper than offering a 4 speed automatic.  (It eventually happened.)  \n\nA huge determinant of efficiency is COMPRESSION RATIO.  Without computer control and injection, most cars of the 70's (BAD efficiency) had LOW compression ratios, say 8.0.  (And food for thought--the first spark ignition engines had a sorry compression ratio of 4.0:1.  How sad!!  They did not know enough about fuel chemistry at the turn of the century, so that's why the horsepower value of vehicles was so low back in the teens. A four cylinder automotive engine having 10hp in the "old days" with a displacement of 2 liters.  WOW!) New cars have all kinds of tricks to increase compression ratios while running on regular 87 octane fuel.  Current compression ratios include 9.0 to 10.1.  Computers adjust injection and spark ignition timing (to repeat a collegue's information already submitted) along with monitoring piezoelectrick "knock" sensors which make adjustments for preignition "pinging."  In the old carbureted cars, even ones with HEI ignition, there was no way to deal with the pinging. The sure fire way to prevent pinging (and serious damage) is to lower the compression ratio.\n\nAnother huge problem with cars of the 70's and 80's were the addition of the catalytic converter and other emission control systems like the huge drain from a "smog pump."  EGR valves put exhaust in the intake charge to reduce nitrous oxides, but that reduces peak combustion temperatures and the available power from the fuel charge.  Running exhaust through the manifold also made the intake charge hotter, reducing efficiency.  Old cars had fixed valve timing, which determines the relationship between power at high rpm and torque at low rpm.  Some manufactures today have adjustment on the exhaust valve timing, and some even adjust both the exhaust and the intake timing to increase efficiency and torque at low RPM while changing valve overlap for high rpm horsepower with a net smaller displacement.\n\nSome modern cars still include EGR, but the catalytic converter technology is much better and more attention to exhaust system design has helped increase MPG.\n\nThe actual energy used by the valvetrain has also been reduced by reducing the mass of the components in the valve train.  Using a cog belt to a cam riding right above the valves reduces the energy used to activate the valves.  That can really add up over the life of the engine.  \n\nAnother development was the inclusion of the electric cooling fan.  Belt driven fans consumed huge amounts of power from the engine, even if they had a thermal clutch.  Flex fans were supposed to reduce energy, but we are still talkin' in the multi-horsepower range just to move air across the radiator.  The modern c
82580
So much to do. I would first start by avoiding the waste of electricity because most of the electricity generated at home comes from gas generators that burning millions of gallons of fuel.\nthe heat generated from this generators is one of the main causes of the global waming.\nadded to that the emmissions from vehicules that is also one major problem.\ntry encouraging people and yourself :) to use vehicules that don't waste a lot of gas. take the bus when you can or ride a bicycle when you have a chance.
607432
While increasing flow of fuel u r increasing the speed of the driver unit (eg. increasing the speed of diesle engine which drives the alternator) bu thus more RPM and more power (however it will not increase more than the rating)
314801
try some octane booster it will clean your fuel injectors and give it some go
160389
You can use just about any flammable gas.  I used to run our lawnmower from a small bottle of propane just for fun.  With a car it's much tricker because the engine changes speed and you have to somehow change the flow of gas.  You can buy refit kits for propane for many cars, am guessing that hydrogen is available too.  The trick with H is not introducing into the engine, but trying to keep it in storage for use.  It does not like to liquify, so very high pressures have to be used to keep any amount of it.
1133765
REDUCE YOUR IMPACT AT HOME\n\nMost emissions from homes are from the fossil fuels burned to generate electricity and heat. By using energy more efficiently at home, you can reduce your emissions and lower your energy bills by more than 30%.\n\nIn addition, since agriculture is responsible for about a fifth of the world’s greenhouse gas emissions, you can reduce your emissions simply by watching what you eat. \n\nHere’s how:\n\nReplace a regular incandescent light bulb with a compact fluorescent light bulb (cfl)\nCFLs use 60% less energy than a regular bulb. This simple switch will save about 300 pounds of carbon dioxide a year. If every family in the U.S. made the switch, we’d reduce carbon dioxide by more than 90 billion pounds! You can purchase CFLs online from the Energy Federation. \n\nMove your thermostat down 2° in winter and up 2° in summer\nAlmost half of the energy we use in our homes goes to heating and cooling. You could save about 2,000 pounds of carbon dioxide a year with this simple adjustment. The American Council for an Energy Efficient Economy has more tips for saving energy on heating and cooling.\n\nClean or replace filters on your furnace and air conditioner \nCleaning a dirty air filter can save 350 pounds of carbon dioxide a year.\n\nREDUCE YOUR IMPACT WHILE ON THE MOVE\n\nAlmost one third of the carbon dioxide produced in the United States comes from our cars, trucks and airplanes. Here are some simple, practical things you can do to reduce the amount of carbon dioxide you produce while on the move.\n\nReduce the number of miles you drive by walking, biking, carpooling or taking mass transit wherever possible\nAvoiding just 10 miles of driving every week would eliminate about 500 pounds of carbon dioxide emissions a year! Click here to find transit options in your area.\n\nStart a carpool with your coworkers or classmates\nSharing a ride with someone just 2 days a week will reduce your carbon dioxide emissions by 1,590 pounds a year. eRideShare.com runs a free national service connecting commuters and travelers.\n\nKeep your car tuned up\nRegular maintenance helps improve fuel efficiency and reduces emissions. When just 1% of car owners properly maintain their cars, nearly a billion pounds of carbon dioxide are kept out of the atmosphere.\n\nCheck your tires weekly to make sure they’re properly inflated \nProper inflation can improve gas mileage by more than 3%. Since every gallon of gasoline saved keeps 20 pounds of carbon dioxide out of the atmosphere, every increase in fuel efficiency makes a difference!\n\nHELP BRING ABOUT CHANGE LOCALLY, NATIONALLY AND INTERNATIONALLY\n\nYour actions to reduce global warming can extend beyond how you personally reduce your own emissions. We all have influence on our schools, workplaces, businesses, and on society through how we make purchases, invest, take action, and vote. Here are some ways you can have a positive effect on global warming.\n\nEncourage your school or business to reduce emissions\nYou can extend your positive influence on global warming well beyond your home by actively encouraging other to take action. Download our toolkits for schools and businesses to take action outside of your home.\n\nJoin the virtual march\nThe Stop Global Warming Virtual March is a non-political effort to bring all Americans concerned about global warming together in one place. Add your voice to the hundreds of thousands of other Americans urging action on this issue.\n\nEncourage the switch to renewable energy\nSuccessfully combating global warming requires a national transition to renewable energy sources such as solar, wind and biomass. These technologies are ready to be deployed more widely but there are regulatory barriers impeding them. Take action to break down those barriers with Vote Solar.\n\nProtect and conserve forest worldwide\nForests play a critial role in global warming: they store carbon. When forests are burned or cut down, their stored carbon is
748326
The fuel should increase to take the load. My experience is on turbine generators, one was 9 mega. WATS.
232819
You can't go wrong with a high flow exhaust and a high flow air filter, it helps the engine breathe a lot better and should also increase economy.  It might be a bit louder though...