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Analog Electronics Blogging Life

Blogging Keeps Me Going

As you may have all noticed (or at least those that read here more often-ish), I have been posting less lately. Partly because I am fixing up a new house and partly because I have not felt very inspired. I think the recession is starting to get me down a little unfortunately. Worrying takes its toll as I’m sure many can attest to.  But fear not! I have some things I would like to reaffirm about why I enjoy blogging thus far and why I think it’s a good idea to keep going with the blog:

  1. Resume 2.0 — I have seen it written that blogs are the new resume. I believe that a little bit, but only for certain industries. If you’re in a field like marketing or PR, you’d BETTER have a blog, and it should be better than the other gazillion marketing blogs out there. The people in non-traditional writing fields like engineering don’t have quite as much competition but I’ve never seen whether employers like new hires to write blogs. Heck, some might even discourage it for fear of a leaky mouthed employee talking about the company’s next great patent or product (I’m so much smarter than that though).  Any way you look at it, if you have a blog you are much more visible to employers than those without a blog.
  2. It opens new windows — My site is hardly a high traffic site. However, I get enough visitors that when someone leaves a comment I can take the time to write them back and try to get to know them. Already I have emailed with some people in the industry that I don’t think I would have ever met otherwise. I have had some people contact me for job interviews and others contact me about potential projects. I like that the blog helps me communicate with people.
  3. Build a brand, brand yourselfChris Gammell is a brand now. It’s a search term. I’m even thinking about making it into an LLP. But when all else fails and people don’t make that association, scream out what you want people to know you are. That’s why I bought Analog ElectricalEngineer.com last month. If nothing else, blogging has taught me a lot about marketing, especially with “New Media”.
  4. Options, Options, Options — I’d like to think if nothing else in this down economy, I might have a few more options than my non-blogging engineering brethren. I think of writing for magazines, trying to blog full time (probably would need more people in the world interested in engineering), consulting, doing contract work, shifting completely and trying marketing (see above) or looking for another engineering position and advertising myself on my blog. While I have learned more and more that it is your experience that gets you a job, the tough part is showcasing that experience to an employer.
  5. Analog electronics suits me well —  I’ll be honest. I feel that my strengths lie in improving upon existing ideas as opposed to coming up with completely new ideas (engineer vs. scientist). And I think analog electronics intrigue me because even after all of these years since electricity was discovered, there are SO many things that are hard to get right. And there will always be problems with analog circuits where others will need help. You can put everything into digital format but there will still be significant portions of a circuit that need to be processing analog signals. Not only that, I could see a future where more signal processing moves back into the analog domain. Ka-ching!
  6. Renewable energy has a long way to go — I love writing about analog because it makes me geek out. I love writing about renewable energy because it’s such a new and exciting field with so much going on and so many new developments. While I don’t like talking about things “going green” just for the sake of it, I really do think there are some significant advances in the technology that need to be discussed (or dismissed).
  7. I like writing — Of all the things that blogging has taught me, I was most surprised at enjoying finding my writing voice. Perhaps it’s my creative side trying to escape or perhaps I enjoy others reading what I have to say. Either way, I like trying to get my ideas across to people, especially difficult technical ideas that may have been inaccessible otherwise. I hope you enjoy it too.

I know this and other posts have been a bit more introspective lately, but I think that’s what tougher times do to people. We stop expecting answers to be external to ourselves and we start to analyze how we can enjoy what we have and what we do. I fully expect to publish more technical entries in the near future because that is something I enjoy doing.

If you have posts you would like to see, technical or otherwise, feel free to suggest them in the skribit box to the right. Others can vote on ideas and I will write them if I can. If you have anything else to say, the comments box is always listening (as am I).

Photo by Woplu

Categories
Engineering Renewable Energy Supply Chain

What The World Needs, Part 1

I like the communication between myself and my readers and my readers (either random or regular) on the comments section. As such, I’ve decided to try some posts titled “What the world needs” (similar to the “My Hobby” posts over at xkcd). These will supplement, not supplant, my regular posts. So here we go:

What the world needs, part 1…

What the world needs is more energy storage solutions. What we have right now just isn’t going to work. Batteries aren’t reliable enough over the long term, ultracapacitors aren’t developed enough and large scale solutions just aren’t efficient enough. All we keep hearing about at the Detroit auto show are the hybrid and plug-in vehicles (Nov 2010 for the Volt? It’s going to take that long??). While they have the conversion from braking energy back into stored energy, I feel like all of the stored energy solutions right now (within the cars, just are not sufficient). Furthermore, when all those plug-in vehicles are in the driveways of the suburbs and sucking down grid power, there will be a higher need to draw upon reserves of energy, either by cranking on more power plant capacity or tapping stored energy. If we want renewable energy to fill that gap in available power we will need even more storage capability, as renewable sources are not “always on”.

My favorite idea out there is the storage of energy by pumping water up a hill (known as Pumped Storage Hydroelectricity); it’s so simple and beautiful, basically you pump water up a hill and then release it later to be converted through turbines into electricity. The initial concept was developed to help deal with load variations on power lines but also to help sell lower cost electricity produced at night during the high cost hours of the day (a concept the plug-in vehicles also hope to capitalize on). Today we see these hydroelectric storage facilities being targeted as ways to store energy from sources such as solar cells or wind turbines.When the sun isn’t shining and the wind isn’t blowing, renewable sources cannot output power; people do not typically stop consuming energy during those times though, quite the opposite. When the sun is highest A/C units are cranked and when the wind is blowing outside people are cuddled under blankets watching TV or reading by lamp.

Like any engineering problem there are limitations. Evaporation reduces the efficiency in arid climates where large photo voltaic installations are likely. Wind occurs more naturally and is more likely to be harvested in areas with out large inclines to pump the water up and down. The turbines are not 100% efficient so there are losses during any pumping of the water. So the question remains, how else can we store and then harvest energy to take advantage of renewable energy infrastructure?

  1. As the verbiage above suggests, we can actually store energy and harvest it through biofuels; it’s really just a different way of thinking about an existing solution. Corn is a favorite right now, with switchgrass being a potential in the future. Mother nature helps us take sunshine, nutrients from the soil and water to produce plants that can be converted into energy through distillation.
  2. Gravity (in non water forms) could help us store more energy. I think of having lifts that could raise large weights into the air to be released at later times. I know there’s a lamp that uses gravity to temporarily light up LEDs, but I wonder how scalable this idea is.
  3. Spring energy has always fascinated me, ever since I got one of those wind up planes as a kid (you turn the propeller to twist a rubber band which then releases to unwind the propeller as the plane flies). I imagine a huge spring being pushed by some weight and then slowly released later to power a generator, but I doubt the materials would allow this indefinitely (springs eventually lose their “springiness”).
  4. Heat is another storage mechanism but has some serious limitations. You could try and heat up a medium (salt? water? saltwater? I think I saw that somewhere), but then maintaining the heat and retrieving it later provide some serious issues.
  5. Hydrogen is touted as a great storage mechanism; while I like the fact that water is readily available, I don’t think the storage capabilities are reasonable. One of the things I like most about the pumped storage facilities is its simplicity.
  6. Pumping air into a bladder or bag underwater could be a possibility someday. You would pump air into the bag and once the pumping had stopped and you wanted to retrieve the energy, the pressure surrounding the bag would force the air back upwards; when you need it, you direct the air through a turbine to retrieve the energy. Temperature changes as you go down in depth would be a concern (air compresses as it gets colder).
  7. Batteries are still an option…basically taking electrons and squirreling them away into electrolytic solutions (or however you want to do it). These become severely limited in large scale operations though; imagine how many “AA” rechargeable batteries you would need to store the output of a 500 MW wind farm

As a final note, I should point out I found this other Wikipedia article on grid energy storage at the end of writing this post. I still wanted to publish my ideas but only some of them matched.

I get a little frustrated when I try and think of new ways to store energy; however, it’s reassuring that there are many options out there that can still be improved upon. Can you think of any other natural or otherwise methods of storing energy? Let me know in the comments!

Photo by obenson

Categories
Engineering Learning Life Work

Yes, I’m still here

It’s 2009.

More importantly I’m still employed. I actually had a blog post planned out for early January in the event that I lost my job. Hey, if you’re not going to promote yourself, who will?

I was reviewing my new years resolutions from last year and I realized the only one I really followed through on was finding new employment. And since finding my new employment and starting a blog and all of those details, I have come to some important realizations, mostly about work:

  1. If you’re doing it right, there are 3 sections to your life: sleep, work, other.
    • Sleep is unavoidable. At least for now. If there are ever advances in sleep technology that allow people to sleep less per night (besides coffee), I will be the first in line. Plus, I have come to the realization that without the sleep component in your life, you enjoy the other 2/3 much less.
    • Other is everything you’re not doing when sleeping or working. The most important thing you should be doing (in my opinion) is building relationships in your life and enjoying those relationships. Sure, there are hobbies and time for relaxing and whatnot, but really it’s the connections in your life that will enrich your “other” time. And in this economy, you shouldn’t be planning for too much “other” time, so savor what you get. Heck, I consider this blog to be under this time category and in the event sleep and work  and my family and friends get in the way, the blog will fall behind.
    • So work takes up that last 1/3 of your life…probably more. What I’m trying to get across is, it’s important, much more so than I was ever told when I was deciding what to do with my life. It’s important to enjoy what you do, who you work with, how fulfilled you are by the things you accomplish and having an employer that respects your non-work time. For me, I continue to tell myself that on mornings when I’m walking the dog in the snow or when I glance at the forecasts for my old hometown. I think about how I enjoy my job now and how I let that trump some other things when deciding whether or not I wanted to change my life around and move up t0 the blustery north. And given the choice, I would do it all again and have advised others to do the same (pick up and move across the country for a job they might like).
  2. A job that pays you to learn is probably one of the best jobs in the world–I’m not talking about being a grad student (although that’s not bad either). I know those jobs and assistantships pay you (sorta) to learn and do research and such, but my experience has been in the private sector; jobs where the real expectation is that I produce an item that can be sold for the company. However, the important thing is that you learn in the process.  My job is particularly well suited to learning, mostly because I am handed problems and then told to start fixing them. Jobs that require thinking on your feet and quickly adapt to your situation will give you the steepest learning curve and you should relish the opportunity to be challenged like that.
  3. If you learn new skills, you’re not a commodity anymore–Let’s face it, we’re all afraid of losing our jobs at one point or another. I’d say a higher percentage have that fear now that we’re in a recession. I was talking recently with a friend that just lost her job and she mentioned a similar thought: to stay employed, you have to be valuable to your employer. A simple but powerful concept. In the end if you’re not learning and are not contributing (or not showing off what you do contribute), you are expendable. So in the event that you are in a job that does not allow for learning (either mentored or self-learning), push your employer to let you start new projects that will allow you to do so. If they say your workload is too high, offer to work overtime on your learning project. I think it’s that important and it might just help you save your job.

The recession will deepen. But even in the Great Depression, with 25% unemployment, that meant three out of four people were working. I plan on being one of those 3 by continually increasing my skillset in my work projects or in my “other” time (reading new books, working on my piano and blogging). What are you doing to make yourself more valuable to your employer or to any future employer?

Picture by _neona_