About that Hydrogen Powered School Bus II ...

The U.S. Department of Energy will drop its research into hydrogen powered cars, the New York Times reports. Discussing the Department of Energy's budget, Energy Secretary Steven Chu said DOE will focus on small labs, a power plant that would turn coal into gas and separate out carbon dioxide and other projects [more details as we sift through the budget]. The New York Times notes:

The retreat from cars powered by fuel cells counters Mr. Bush’s prediction in 2003 that “the first car driven by a child born today could be powered by hydrogen, and pollution-free.” The Energy Department will continue to pay for research into stationary fuel cells, which Dr. Chu said could be used like batteries on the power grid and do not require compact storage of hydrogen.

Earlier this year, the Department of Energy specifically said hydrogen powered school buses did not have a viable future.

Given these issues [public health and fuel economy], school bus operators are increasingly receptive to new technologies, but their willingness to demonstrate and deploy advanced technologies and alternative fuels must be balanced with strict financial and operational considerations

Also online, John Whelan shows how to replace power steering hoses on a pusher school bus.

Goodbye Prius, Hello Volt

Newsweek has a story that's worth reading on why first-generation, Prius-style hybrids may be the first victims of a shift to plug-in hybrids. Why dump these relatively new cars? Because the market will need to make room for their much more efficient younger brothers and sisters. Of course, Prius maker Toyota disagrees:

"The fact that the Prius has been around for 10 years does not mean it is old news or obsolete. In fact, it keeps getting better and better," says John Hanson, a company spokesman ... Hanson says Toyota is doing research on lithium-ion batteries, and plans a plug-in hybrid prototype for next year. But he insists that for now its tried-and-true batteries are best, and that lithium ion isn't ready for prime time. "Battery science is not where it needs to be," he says.

Recently, we've seen a bit of news on the hybrid in the school bus industry. Next generation buses may be far from some district's economic reach now, but with more hybrids coming to market, the school bus industry will soon have its own similar questions to answer.

What to do when diesel engine cranks but does not start

This week, John Whelan posts on what to do when your bus cranks, but does not start.

...the first thing you want to look at is the power feed to the engine controls. In this case it's a Mercedes mbe 900 diesel engine in a Thomas C2 school bus. The first check is the fuse block since this powers up the ignition relays that operate the engine control modules.

Follow the link for a full description and photos. As always, thanks, John.

Generational Digital Divide in Your Garage?

Talk about the Digital Divide between those with access to information technology and those without it is well over a decade old. But what about the divide between how the older and younger technicians and mechanics look at technology? As Bill Siru discussed in March, there is only going to be more technology and it's going to require more training.

Education Week points to an interesting survey on the differences between how Boomers (ages 44-60), Generation X (ages 29-43) and Generation Y (ages 28 and younger) use technology. One interesting question for this blog is about the blogging. Only 28 percent of Boomers think it's acceptable to blog about work-related issues while 40 percent of Gen Y workers do. Even more striking, 62 percent of Gen Y access a social network (LinkedIn, Facebook, MySpace, etc) from work, but only 14 percent of Boomers do.

All of those in the survey were in white collar jobs and most of the technologies were PDAs, social networking, email, etc., but the survey could pose some interesting questions for those in the school bus maintenance and heavy-duty diesel repair industries:

• Are older employees reluctant to use laptops, PDAs and other digital diagnostic tools or are they eager to learn?
• Are younger employees more inclined to use the Web, email, social networks, this site etc. to solve difficult problems in the garage or find out about new technologies?
  
• Are younger employees more interested in learning about alt-fuel technologies (i.e. CNG, Propane, Hybrid-Electric, Electric, Hydrogen)?
• If your younger employees are coming in with knowledge of "new" technologies (Web, laptop, digital diagnostics, alt-fuels, etc), how are you reaching out to your older employees?
• Do you have a clear and up-to-date policy about what technologies (cell phones, email, social networks, etc) are acceptable at work?
  

District Drops CNG, Says Diesel Will Save

Three years ago the Tucson Unified School District invested heavily in CNG-powered school buses, now the school district is change its tack with an $3 million diesel school bus order, the Arizona Daily Star reports:

... the CNG buses have drawn complaints from mechanics, who don't like the engines as much as they do diesel, and from drivers, who don't like the long trips to the airport fueling station ... but the biggest reason behind the switch is that diesel is cleaning up its act. With the federal government next year instituting stringent clean-air requirements, the new generation of diesel buses spits out only a fraction of the tiny pieces of dust, soot and fumes that its older kin does. Such emissions are now on par with clean-burning CNG-fueled buses.

Tom Mulligan, the district's transportation director, says given the improvements in diesel, the decision to switch makes financial sense. But Richard Kolodiej of NGVAmerica says that might not hold if diesel prices go back up, especially since districts can lock into natural gas prices for seven years. On the environmental side Patricia Monahan of the Union of Concerned Scientists says natural gas is still worth considering as a means to end petroleum independence and overall pollution reduction. But, she says:

"... I think school districts have a lot of hard decisions to make ...I wouldn't chastise the district for cutting costs, but there is an argument to still use natural gas."

So what's going on at your operation? Are you looking at CNG or propane? Is "green" diesel where it's at?

Also on the alt-fuel radar this week, IC Bus will get $10 Million from the U.S. Department of Energy to develop and test the next generation plug-in hybrid school bus.

The Mystery of 2010: SCR vs. EGR

This week, both Thomas and IC Bus offer takes on the 2010 emissions regulations coming. In a story that appears elsewhere IC's marketing director argues its EGR solution is better because it's "less hassle"

Looking at both options, we can conclude that even if SCR improves fuel economy and if urea costs come down at some point, then the additional costs of training service techs, storing and purchasing replacement parts for the urea system, and adding a urea infrastructure to your business will add unfamiliarity and costs that are not good for your bottom line.

Thomas Built Buses counters with a Web site about its SCR solution. The company breaks the choice down to a top ten list:

1. Best fuel efficiency
2. Proven technology in Europe
3. EPA recommended and approved
4. Higher engine power density
5. No increased heat rejection, allowing for more efficient combustion
6. Lower cost of total ownership
7. Reliable
8. Durable
9. Easy to service
10.Environmentally friendly

Take a look at both sites for yourself. Let us know what you think. What questions do you still have about SCR and EGR? Let us know and we'll see if we can get them answered for you. Are you ready to make a switch? Have you already committed?

RIP: School Bus Artist Tom Kennedy

Tom Kennedy, the San Francisco-based artist/activist and father of Topsy Turvy, drowned over the weekend in San Francisco. Topsy Turvy (shown right) was a piece of school bus protest art designed to follow the 2008 presidential election and argue against what it's designers considered the upside down spending priorities of the United States. More modified vehicles and school buses at Kennedy's Web site. More videos and well-wishes here.