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| Efficient Lamp: Newsletter Challenge (06/01/11) | | posted in Challenge Questions |
This month's Challenge Question: Comparing fluorescent vs incandescent lamps, a fluorescent lamp emits mostly ultraviolet (UV) light and a very small amount of visible light, whereas an incandescent lamp produces mostly visible light. And even though UV light can't be used to "see" anything (unl ... more |
| Unstable Voltage | | By sake in Electrical Engineering |
How do i get to control voltage on a cat 3516B generator,when running on island mode?When unit is in island mode the voltage shoots high or down and cant be controled unit trips on high/lowvoltage.Unit works normal when running in parallel with other unit.DVR has been replaced,and all exitation fiel ... more |
| Cummins 6CTA8.3M2 Marine Diesel Not Cranking | | By dvmdsc in Mechanical Engineering |
Dear Conference Roomers. Some advice to not to dismantle too much? 500 Hours on the counter. When exciting the starter, I hear just a click. 6 cylinder, in line, turbocharged, 450 HP. When I check the starter with 12V test bulb, the light is out when engaging. The crankshaft doesn't move a bit. C ... more |
| Maximum Field Bend Radius for Pipeline | | By SUTHASINEE in Mechanical Engineering |
Hi,all the specialist. I just worked as an engineer in engineering section in Thailand ,I found several problems in pipeline work but now can't find the solution for them.First priority problem ,My Client let me to design Pipeline route to be alongside the curved U turn road by natural field bend , ... more |
| GE Multilin SR735 Feeder Protection Relay Failures ? | | By colintonybone in Electrical Engineering |
Hi, Does anyone have problems with SR735 relays failing ? I have a number of relays fitted to an ABB, 6.6kV switchboard, which has been in service around 18 months. We have now changed out 4 relays due to them just dying ! All LEDs extinguished. DCS receives alarm to tell us relay has problems. I ... more |
| Blowdown Calculations Using HYSYS | | By enguest in General Discussion |
Dear all, Could you please help me with the following query: Now I am doing the blowdown calculations for the gas injection manifold. It is 16" Manifold with 10 meters line with enlarger at the end (increasing line size to 6") and blowdown orifice on the 6" line. Is it possible to use the depressu ... more |
| ACME SMK 980-17 | | By Toba in Electrical Engineering |
Hello Everyone. Please can anyone offer me some help as I am currently working on a set up that involves an ACME SMK 980-17 Console, the problem is I can't get to access the Set up Menu for this product in detail. I stumbled on a particular set up screen by using some key combinations that were dif ... more |
| The Internet | | By MACA in General Discussion |
Is it possible to shut down/alter/censor/control the internet? I was reading an old article by Jeremy Clarkson and he said it is not possible to switch off the internet but I was thinking about this and wondered is the internet now too big and complicated for it to be fiddled with. Also, if it isn't ... more |
| Wet Fiberglass Insulation at Chilled Water Lines | | By afrikeber in General Discussion |
We have two chilled water lines within a walkable tunnel that have exposed piping. As a result the lines have condensed as the ambient temperature in the tunnel stays much higher then the chilled water lines. The chilled water lines must stay active. My question is can the fiberglass insulation whic ... more |
| Discrimination Nation? | | posted in Plastics & Resins Blog |
The All India Plastic Manufacturers Association (AIPMA) is trying to work with their government on recycling and renewable energy initiatives, arguing that only 4% of the nation's solid waste is plastic, 60% of which is recycled. Are they right to argue that a ban is actually a "tax" on plastic, whi ... more |
| Cool Cars: 1967 Chevrolet Chevelle SS 396 | | posted in Hemmings Motor News Blog |
Since the start of the Great Recession, we haven't seen nearly as many muscle cars touting high-quality restorations as we saw during the boom years. This 1967 Chevelle SS will not disappoint you, however, as it's the product of a 7-year labor-of-love restoration on a solid original Super Sport. Fro ... more |
| Is Fracking Safe? | | posted in Oil & Gas Technology |
The French National Assembly just voted to ban hydro-fracturing in their country. In the U.S., citizens are considering suing the U.S. Environmental Protection Agency for tighter control, if not an outright ban, of hydro-fracturing projects. Coastal Brits are torn between fracture fears and boosting ... more |
| There's an App for That? | | posted in Mechanical Components Blog |
At the office, walking to lunch, taking in your favorite ballclub. Wherever you are, the exclamation is now too common, "I didn't know there was an app for that!" The array of apps is so phenomenal now that, indeed, there does seem to be an app for almost everything. Even in design engineering. Ther ... more |
| Is HVAC Training Right for You? | | posted in Engineering...Beyond the Classroom |
If you are looking for a skilled trade that lets you work with your hands, the Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R) field may be the perfect career path for you. Companies, hotel chains, office parks and homeowners rely on efficient and reliable climate control and ... more |
| Climate Change and Storm Frequency | | posted in Rockaholic Adventures |
Whether current global climate patterns are human induced or not, climate change does takes place and weather patterns can help us anticipate climate trends. Climate change is the deviation of mean global temperature by as few as one or two degrees Celsius. Spatial variability is grea ... more |
| Rallying 'Round "Affordability" | | posted in Aerospace Technology |
The aerospace industry could use a shot in the arm says Aviation Week & Space Technology Editor-in-Chief Tony Velocci. Citing a general decline in R&D as well as recruitment of top talent, Velocci believes a mission or rallying call is needed. In this editorial, he makes the case for "afford ... more |
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