Electronics News

How Safe Is Safe Enough?

View Comments: Oldest First|Newest First|Threaded View
<<  <  Page 6/6
User Rank
Re: One other thing that the rulemakers should consider
Totally_Lost   5/14/2013 2:19:46 AM
WilliamK writes: "And air pollution comes from many sources and getting rid of all of them will reduce our standard of living to staying in caves and eating rocks. OK, that is an exageration, I know, but I am also aware that there are a whole lot of people, some who are actially well meaning, who want to force us into some utopian realm by taking away most of our freedoms, which include driving away from them in our carbon-based fueld automobiles."

Funny, when I do the math, removing 3.2M deaths and many times that illnesses/injuries from fossil fuel pollution, frees up about $3T to be added back into the global economy to improve the quality of life on this planet ... which is almost enough to pay the entire cost of needed high temp reactors.

If we simply stop producing gasoline/diesel cars/trucks, then other than a small number of collectors vehicles, everything else can be phased out to H2/EV hybrids in two decades or so by natural attrition. Providing H2 conversion kits at a low subsidized cost, will entice even a significant number of car collectors to upgrade, just so they can drive them everyday, without having to find gasoline/diesel which will start to get scarce/expensive with lower volume use.

I don't see any reason to come knocking at your door, asking for your car keys.

That kind of rhetoric is probably FUD.

User Rank
Re: One other thing that the rulemakers should consider
windhorn   5/16/2013 3:08:05 PM
WilliamK wrote:

"...an FMEA for the complete plant would probably take a team of engineers less than a week..."

An FMEA for ONE component of ONE genset takes six engineers about two months (one man-year) and 40 pages.  Multiply that by the number of parts in the building.



William K.
User Rank
Re: One other thing that the rulemakers should consider
William K.   5/17/2013 8:22:10 PM
Windhorn, Six months for an FMEA on one component? Either they are: a.) evaluating it on a molecular level, or b.) doing it part time with a weekly FMEA committee meeting, or c.) Milking the project most strenuously. I can see that there could be 40 pages of report, but it is unomaginable that the FMEA could take that long, if the team understood the product beuing evaluated. If it was a team of "avaerage" engineers that had never seen the product previously and had never worked to gether before then it might take a lot more time. But why in the whole world would a team be selected for an FMEA that did not understand the product intimately. OUr team that worked so (apparently rapidly) knew and understood every aspect of the product completely, prior to our first time spent on doing the FMEA. There is no other raional way to approach such an important project.

User Rank
Re: One other thing that the rulemakers should consider
RegularJoe70   7/1/2013 9:48:53 AM
A couple weeks ago, I read an article from another trade rag (link here: http://www.deskeng.com/articles/aabkes.htm ) about the military experimenting with hydrogen fuel cells for automotive use.

The article says that the prototype vehicles carry about 5kg H2 at 10,000 psi.  Assuming the tank is at a balmy 80F, that hydrogen occupies about 24gallons (basic PV = nRT calc).  The article also says that a kg of H2 is roughly equivalent to a gallon of gasoline, so that's about 5 times the volume of ordinary, liquid, atmospheric pressure gasoline, just for fuel.

And that's just the hydrogen.  What about the pressure vessel? And all of the ultra-high pressure lines and pressure regulation and risk of sitting on a bomb?

It's cool that we're experimenting with this technology but I can't see it being anything but a niche application for a long time to come.  Petroleum prices have to get redonkulously expensive before this tech becomes even remotely attractive for a common user.

<<  <  Page 6/6
Partner Zone
More Blogs from Electronics News
By now, most engineers know that embedded applications are vulnerable to cyber attack. That knowledge, however, isn’t necessarily translating to action.
Renesas Electronics this week rolled out the first components for a new platform that promises to simplify embedded product development.
We're counting down the inventions that have had the greatest impact on our lives. Now it's time for the top ten.
Even as an increasing number of instrument manufacturers migrate toward modern touch screens, many engineers say they still prefer the tactile feel of knobs and buttons, a new survey says.
Flexible electronics will expand beyond its high-profile role in fitness over the next five years, potentially aiding in the treatment of movement disorders such as Parkinson’s Disease.
Design News Webinar Series
11/10/2015 11:00 a.m. California / 2:00 p.m. New York
10/29/2015 11:00 a.m. California / 2:00 p.m. New York
10/20/2015 8:00 a.m. California / 11:00 a.m. New York
12/2/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 6 - 10, Building Raspberry Pi Controllers with Python
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service