Category Archives: Energy

Diesel converts to water

You know the whole water into wine thing? Well, I hate to bring it up but what else comes to mind when the Army announces that their diesel-powered Humvees are going to be outfitted with technology that can return water from diesel exhaust? Just filter the exhaust through some “proprietary carbon filters” and put the results into a handy container in the Humvee and add a spigot. Pretty darn amazing idea, if you ask me, and apparently just one of the innovative things that happens when the chips are down in a desert and water is considered a truly precious commodity, yet diesel fuel is all around. Or as someone in logistics might put it “if you carry fuel, you already have your water”. Well, unless you run out of “proprietary” filters. But I digress…

once you taste the water, you realize the potential.

Great marketing slogan, because before I tasted the water I just thought it would be a convenient place to dump toxic waste from warships and munitions. To be frank, the risk equation being used here to justify the research is simple. The more complicated the supply logistics the more vulnerable the soldiers, so the brass are looking for ways to shore-up a water supply chain. Cleaning domestic superfund base sites? Civilians are vulnerable mostly, so no pressing need for the military to invest in new technology there…remember, the groundwork for the Internet was started by a project funded by the US military to help maintain the command structure during war.

Now, let’s say the situation with risk is different — contaminated water is all around, AND diesel refineries are nowhere to be found. Enter engines designed for bio-fuels? Hmm, maybe the next war, although the use of bio-diesel is known to lower the risk of damage from IEDs since it is less combustible. It also might make the water taste more like yesterday’s freedom fries.

In the meantime fuels like bio-diesel remain non-combat experiments and the ability to recycle the exhaust sounds like a cool use (pun intended) of energy tech that I hope makes it to the civilian world soon.

Grow your own fuel?

Whoa, the Seattle Times reports that Washington state is talking about low-interest loans for “biodiesel factories”. Just the fact that they call them factories instead of refineries means they probably are actually hoping that this will take off on a distributed level:

Gov. Christine Gregoire recently proposed low-interest loans for biodiesel factories, and a requirement that diesel sold in the state contain at least some biodiesel. State lawmakers from both parties are vowing to promote similar plans when the Legislature convenes next month. And Congress last summer included a tax credit for biodiesel in its energy bill.

Frankly, this seems very lopsided compared to the information technology revolution that led to the Personal Computer. Companies like Microsoft that kludged together some flimsy DOS system, sold it to a couple big customers and…the rest is history. But the energy age seems to be struggling with generating a reliable source of energy to be converted, rather than the efficiency of doing the conversion itself.

I think growing greens for oils (or processing fish, meat, etc.) might not be the best approach, since you could actually get another use out of the oil first and then process the remaining waste. We still find that each small restaurant produces 20 gallons of waste oil a week, with larger productions reaching 50-100 gallons a week. I will verify that this Friday, but what if you can tap into the waste issues of resort-towns with their close concentration of hotels and affiliated restaurants, or strip malls, or even large malls? It seems best for municipalities and counties to promote that for every 1,000 gallons/week of waste oils they will subsidize establishment of a bio-diesel station. Thus you are not only focusing production of the bio-diesel around a ready supply, but you are also reducing waste/land-fill issues.

I’m not suggesting that farmers shouldn’t grow their own fuel, but it seems to me that it would be better to convert to plain oil and retain flexibility by diversifying output options — they might be able to do a minor conversion to sell to restaurants, manufacturing, energy, etc.

One thing is for certain, beware the opportunists who pose as engineers:

“You have seen a lot of snake-oil salesmen come through with the next best thing,” acknowledged Conklin, the Palouse Biodiesel president.

Both examples in the story (straw-board and beets) illustrate what happens when a concept is marketed and sold as ready for production before it even has been properly tested (quality problems and equipment failures). And because that brings me back to the issues of security in a system development lifecycle (SDLC), I think I’ll categorize this post as security too.

TDI Passats appreciate in value

USA Today reports today that the ’04 and ’05 VW TDIs have appreciated in value, unlike most cars which have depreciated as much as 26%. And when you consider the diesel option actually made the car cost less up-front than the gas engine, bio-diesel powered Passats have turned out to be not only one of the most fun cars to drive but also a good financial and environmental investment.

sunbrella

sunbrella

This red-dot winner seems like a good idea at first glance. It’s a sunbrella/solar-panel. Perfect for beachgoers who need to power those portable air conditioning units or giant portable beer coolers. In fact, this seems like the just the right thing for small villages in the desert that suffer little or no wind, which brings me to my second glance; what happens when the breeze picks up the disc and launches it like a monster frisbee into the monster-truck parked next to the guy with all the muscles? And how do you collapse/store the thing when you don’t want every bird in the harbor to use it for target practice? Ew, messy. Oh, well. At least it looks a lot prettier than the CIA’s new solar and wind energy units, shown below, made by SkyBuilt Power.

The CIA plop and drop