CNG Trash Trucks for NY
Posted by Glenn on August 6, 2006 - 1:55pm in The Oil Drum: Local
One possible niche that seems almost too perfect would be to fuel garbage collection trucks with CNG, preferably converted from methane gas from anaerobic digestion that would have otherwise have been released into the atmosphere . A nationwide fleet of more than 126,000 Garbage trucks operate daily in almost exclusively residential areas including the most dense urban areas of the country. They are a major contributor of ground level pollution and unhealthy air. At the same time, 450-650 billion cubic feet per year of methane waste leeches out of landfills each year which is a significant contributor to greenhouse gases.
SOME may think Smithtown an unlikely pioneer in a major technology revolution. But last month, leaders of this community of 116,000 made a historic decision: by January, all refuse trucks serving the town must be powered by natural gas instead of diesel fuel. Smithtown is the first community on the East Coast to do this, and, if we’re lucky, other cities will follow its lead. Why should communities buy new, different and seemingly more expensive refuse trucks? The big heavy diesel trucks, providing an essential service, rumble down residential streets nationwide largely ignored by citizens (unless, of course, they don’t pick up the trash on time). But recent research conducted by Inform, under my leadership, shows that we can’t afford to ignore them anymore.
In May, Stephanie Mandell of the Sustainable transportation program at INFORM wrote about the many benefits of CNG powered municipal vehicles in Gotham Gazette. She also contrasted that to the current situation with Sanitation trucks:
Per mile, refuse trucks consume the most fuel of any vehicle on the road, burning one gallon of diesel fuel every 2.8 miles. Partly because they are among the oldest vehicles on the road (nationally, 41 percent of them have been in use for more than 10 years), garbage trucks are among the most polluting vehicles. As trucks age, their pollution controls deteriorate, allowing higher levels of pollutants to escape into the air. A recent report by INFORM (in pdf format) calculated that the 3,607 diesel-fueled refuse trucks operated by private garbage haulers in the city collectively generate as much as 9,500 tons of soot and pollutants per year. Thousands more tons spew from the Department of Sanitation's 2,500 diesel-powered refuse trucks.
Robert Rapier applauded Rhode Island's choice for choosing to sell Compressed Natural Gas (CNG) because CNG offers a good 50-60% reduction of ground level carbon monoxide emissions and because of the potential to develop renewable domestic supplies of CNG from landfill methane and collect stranded natural gas from around the world and transport it to the US through LNG tankers and ports.
Similar to how biodiesel might provide a niche in use for important functions like food distribution, basic municipal functions (police, fire, mass transit, sanitation), investing in CNG vehicles may play an important role in preserving reliable and possibly renewable fuel supplies to the most important vehicles in our society.
Local sanitation departments could become net fuel producers if they close the loop of waste from their landfills and the fuel their trucks use everyday. They could use the excess fuel for other municipal vehicles or to create electricity or provide gas for cooking/heating to surrounding homes and businesses.
So where does the current New York City Department of Sanitation stand on this? The latest information I could find on the subject which was contained in an October 2004 report for the Solid Waste Management Plan that was recented passed by the City Council seemed to state a preference for Ultra Low Sulphur Diesel (ULSD) as a way to reduce ground level pollution over CNG which they cite as too expensive for vehicle procurement and infrastructure development (p.9):
"DSNY recently procured 26 new CNG collection trucks. Based on their performance with the first-generation CNG trucks purchased under a contract. One of the major disincentives, however, to creating a CNG refuse fleet is the cost related to puchasing the trucks and infrastructure needed for a CNG facility; a CNG refuse collection vehicle can cost considerably more than a conventional diesel truck and the cost of a CNG facility with fueling, proper ventilation and leakage alarms can be high."
I could not find any further information on how these trucks performed on any metrics or specific costs estimated for what type of investment might be required to have a fleet of CNG trucks. It would be interesting to see the difference in emissions, the difference in noise level, the range and operating costs associated with each after the initial investment and what assumptions were made about the price of diesel.
All of this needs to be investigated, but I hope some imagination is considered in building anaerobic digesters to produce onsite methane that can be converted to CNG and placed back into trucks that collect the waste. The potential benefits to public health through the reduction of carbon monoxide on our streets, the prevention greenhouse gases, could make this a great idea now, even before post-peak oil production dramatically affects the reliability and cost of supplies of gasoline and diesel.
RE trash trucks, it seems that this is a fleet that is extremely open to hybrid technologies due to the constant braking and stop/go activity. (Which would have the community 'good' of making less noise much of the time ...) This hybrid can be with an air compression or hydraulic (rather than electrical) system.
Thus, hybrid CNG trash trucks that are getting their "fossil" fuel directly from the trash they carry, reducing the methane gas emissions from the dump into the atmosphere.
That is an attractive prospect ...
It appears that the idea of a closed system for Sanitation vehicles specifically using CNG may be a bit optimistic given current technology, but the idea of making some type of transportation fuel may be practical.
So what should Sanitation vehicles be powered by? Well, as we know, the North American natual gas situtation may deteriorate quicker than the global oil markets. And even after the installation of LNG facilities in our area, it is hard to predict whether that market will be more or less reliable than global oil markets.
The most important piece of information missing is the emissions difference between the 26 CNG trucks in operation and Ultra Low Sulphur Diesel fueled trucks.
Yes, don't need CNG based garbage trucks. Need less garbage. A LOT LESS. Garbage is not an item of commerce, meaning the Commerce Clause does not apply. States should simply ban the incineration or landfilling of "trash". Eliminate trash. Easier said than done, but must be done.
cfm
Over here in Sweden there has been a success with taxing landfills, it has mostly led to large scale garbage incineration that turns the waste into heat, chilling and electricity.
It has also somewhat helped the sorting of garbage usefull for biogas production or reuse within he building industry and so on.
Our greens realy dont like this since the idea were that there would be no garbage and instead we have more then ever but soon very few new landfills. They are arguing for taxation on garbage incineration, I do not think this will work.
My guess is that we will have this garbage stream untill we hit a depression and people no longer can afford to buy as much new things and parts of the wastes turn valuble.
My recommendation is to in the meantime try to get misc products to contain less harmfull substances such as certain flamability inhibitors and become easier to burn and recycle.
Getting people to not make garbage is a loosing battle, try to get them to make better garbage instead.
So this has been done before and is technically feasible, it's just not clear if this is better than simply burning the waste gas for electricity. I look forward to following this area and seeing which reuse of trash becomes the more viable and energy efficient concept.
It will never make sense to burn ANY liquid fuel in an ICE at 30% efficiency >> throwing away 70% in the form of heat???
If we have a liquid or gaseous fuel... CNG; landfill gas, CTL... it will be primarily used as a chemical feedstock.
And if you did want to burn the fuel... then it would have to be in a stationary situation so that you can harvest the high-quality heat... for industrial process, space heating, water heating, greenhouses... whatever...
As for trash trucks... what better application for EV... frequent stop & start; no pollutants whilst idling, only low velocity needed... day-use only > over-night recharging
Hell, the British have had electric "milk delivery vehicles" going door-to-door for this identical role since way back in 1950s...
The US gas situation is a heck of a lot better than the oil situation as far as supply. Most of the US sedimentary basins have only been explored thoroughly to 12,000 feet subsurface,and commercial production depths are now possible to 20,000 feet plus. Virtually all the oil is in the 2,000-10,000' depth range in wells, but the greater depth areas are prone to natural gas production. I think that we are still on the up slope in gas production as far as volumes.
But costs go up exponentially as wells are drilled and completed at greater depths and in unconventional objectives such as coal bed methane and shale gas wells or in the deep water and subsalt plays offshore. And burning gas in vehicles still doesn't address global warming.
Produced gas from organic wastes could have the CO2 captured and sequestered from both the upstream production and also from the exhaust of an electric generating plant in a much more cost effective manner through osmotic membrane technology,IMO because it has only one source.
To John Milton,
Allow me to requote your paragraph, because it so correct....
"It would seem to me that a hybrid CNG trash truck would make the most sense, since they are probably the worst example of "stop and go" use I can think of the regenerative braking system really makes sense here to recover some of the energy required to accelerate all those tons of trash time and time again."
There are developments afoot that will astound you, then, but, surprisingly, they will be hybrids, but not gas electric style hybrids. Due to the battery limitations, those are still half decade down the road for heavy vehicles.
But there is a better way. Combined with CNG, the use of the Hydraulic Hybrid drive will enhance performance and efficiency.
http://www.nextenergy.org/industryservices/Hybrid__Hydraulics.asp
http://seniordesign.engr.uidaho.edu/2004_2005/dumpsterdivers/index.htm
http://www.greencarcongress.com/2005/02/epa_eaton_and_p.html
And of extremely great promise, the stats and details on the EPA/Eaton Corp./Ford partnership demondstrated on a sport ute:
http://www.epa.gov/otaq/technology/420f04019.pdf
On many stop and go and vehicles, including mail and delivery trucks and vans, UPS delivery vans, school buses, city passenger buses, and of course, sanitation trucks, the improvement in efficiency once these designs make their way into the fleet nation wide will result in declines of tens of millions of gallons in fuel consumption. It is a revolution that is long overdue.
Roger Conner known to you as ThatsItImout
Ok, so heavy duty EV is not ready yet... how much imagination does it take to get round the problem... say, a fleet of small EV "cabs" pulling lightweight trailers to a central point.. drop & pick up an empty... go to the next subdivision... SOLVED.
And maybe while we are at it... we can start locating landfills for garden waste in the centre of town rather than every inhabitant having to drive(in my case 5 miles) out of town and there, join a line of trucks emptying their 10kg of grass cuttings...
Sorry... just venting...
Anyway, in Kyoto (where I am based now) the city rubbish trucks have used cooking oil for the past 2-3 years, if I remember correctly. Also, another major contributor to city pollution, the bus fleet is slowly switching over to bio-diesel, although I am not sure of the exact combination of the alternatives they use. It is certainly a start because hundreds of huge buses belching out black diesel smoke has been an eyesore in Kyoto and other Japanese cities for years now.
http://www.bloomberg.com/apps/news?pid=20602099&sid=aiUH45sTA2og&refer=energy
Iran,Kuwait ,Saudi Arabia and Nigeria all down. The citibank analyst says "it is unusual to see so many members move in the same direction" Really? Get used it. Idiot.
Major Alaskan oil field shutting down
By MARY PEMBERTON, Associated Press Writer 7 minutes ago
ANCHORAGE, Alaska - Half the oil production on Alaska's North Slope was being shut down Sunday after BP Exploration Alaska, Inc. discovered severe corrosion and a small spill from a Prudhoe Bay oil transit line.
BP officials said they didn't know how long the Prudhoe Bay field would be off line. "I don't even know how long it's going to take to shut it down," said Tom Williams, BP's senior tax and royalty counsel.
Once the field is shut down, in a process expected to take day, BP said oil production will be reduced by 400,000 barrels a day. That's close to 8 percent of U.S. oil production as of May 2006, according to data from the U.S. Energy Information Administration.
"We regret that it is necessary to take this action and we apologize to the nation and the State of Alaska for the adverse impacts it will cause," BP America Chairman and President Bob Malone said in a statement.
Malone said the field will not resume operating until the company and government regulators are satisfied it can run safely without threatening the environment.
Officials learned Friday that data from an internal sensing device found 16 anomalies in 12 locations in an oil transit line on the eastern side of the field. Follow-up inspections found "corrosion-related wall thinning appeared to exceed BP criteria for continued operation," the company said in a release.
That's when workers also found a small spill, estimated to be about 4 to 5 barrels. A barrel contains 42 gallons of crude oil.
BP says the spill has been contained and clean up efforts are under way. State and federal officials have been informed of the decision.
BP said it was sending additional resources from across the state and North America to hasten the inspection of the remaining transit lines. About 40 percent of the lines have been inspected.
BP previously said it would replace a 3-mile segment of pipeline following inspections conducted after up to 267,000 gallons of oil spilled onto the frozen ground about 250 miles above the Arctic Circle in March.
House Speaker John Harris said it was admirable that BP took immediate action, although it's sure to hurt state coffers.
"This state cannot afford to have another Exxon Valdez," said Harris, R-Valdez
http://news.yahoo.com/s/ap/20060807/ap_on_bi_ge/oil_field_shutdown.
and Syria and hurricane season, and the collapse
of Cantarell, we are all in a world of poo.
It sounds like the Alaska pipeline needs replacement.
"It sounds like the Alaska pipeline needs replacement."
....yeah and they just realized TODAY, with no foreknowledge....
THIS IS GETTING SOOOOO RICH!!
Roger Conner Known to you as ThatsItImout
yeah, they alllllll peaked at once....this is getting rich!!
Roger Conner known to you as ThatsItImout
Suppose instead that you carbonized that matter (turning it into charcoal and a combustible off-gas), then used the off-gas for fuel and the charcoal as half soil amendment, half feed for direct-carbon fuel cells. All potassium and phosphorus winds up either tied up in charcoal or in recycled fuel-cell effluent. You could knock out a considerable chunk of your energy needs this way (and even store it against future needs once it was dried). Would you rather eliminate large parts of your fuel consumption and sequester a stream of carbon, or feed worms?
*Estimated to provide $200/year of energy savings with a payback period of 200 years. Maintenance not included in calculations.
**To be used with paper waste and food refuse only. Products containing silanes such as conditioners, hand-lotion, and makeup are not to be gasified.
*
*Coproduct liquid nitrogen is not a toy.A sterile product such as charcoal would eliminate pathogen worries when used as a soil amendment, too.
http://news.yahoo.com/s/ap/20060807/ap_on_bi_ge/oil_field_shutdown
I understand the pollution advantage of CNG, but what is the fuel advantage. Does it really matter whether we produce the methane and sell it to others, or produce the methane and use it in our own trash trucks? This second reasons seems to be grasping at straws.
Pollution reasons seem good though.