Oct 31, 2012 Lighting Design & Controls
Loading dock lights are used on truck loading docks to bring light into long semi trailers and surrounding work area. The need is great as so little light often reaches the end of an enclosed trailer. For safety reasons and efficiency, it’s important to have proper lighting in loading dock areas. Loading dock lights have become enormously adaptable for numerous types of lighting applications, such as loading dock areas and warehouse work areas where work lights need to be portable. Loading dock lights are necessary for any business which does a lot of loading and unloading of heavy trucks. There are most likely other ways loading dock lights can be used in an industrial lighting situation where you want keep the light against a wall or swing out to provide ample light down the length of a truck trailer. Most companies provide several different types of loading dock lights including incandescent, halogen, high pressure sodium and rayton composite fluorescent work lights. Easy Rack?s loading dock lights reduce freight damage, expedite loading and unloading operations and provides consistent illumination inside semi-trailers or around dock worker areas. All Dock Loading Lights are UL listed.
Work lights are portable and can also be used in a residential environment when working in areas of poor light such as basements, attics, crawl spaces, working under sinks, cabinets or in dark garages. Other work light uses include painting, sanding, repairing, laying floor or staining. Whatever the job may be we have a work light that will fit the job
Industrial Dock Loading Light Benefits.
Incandescent Lights, offer portability, good color, low replacement cost and turn on instantaneously even in cold weather conditions. Our Incandescent work lights utilize a 90 watt bulb, model PAR-38, sold separately. Adjustable arm knuckle joint allows vertical and horizontal positioning.
Halogen Incandescent Lights provides more lumens/watt, better energy efficiency, has a longer service life, portable and experiences less light reduction over its lifetime. Halogen work lights are supplied with a 500 watt bulb. Light turns on instantly.
High Pressure Sodium Lights offers much higher lumens/watt output and a very long lamp life. Its illumination color rendition (yellowish) is not as desirable as an incandescent. Incandescent work lights characteristically requires several minutes to turn on, and even longer if in a cold environment. Low operating cost and portable. Dock work lights units are supplied with a 50 watt bulb.
Ryton Composite Fluorescent Dock Lights stay cool to the touch even with a 500 watt incandescent light. Dock loading lights are available in a standard incandescent lamp head and a fluorescent lamp head. Fluorescent lighting units include a bulb and head.
Halogen Work Lights provide superior lighting at jobsites that assures worker safety and precise loading and unloading. These quality work lights are UL listed and CSA certified. 500 watt halogen bulb included providing 11,000 lumens.
Companies can also carry dock loading traffic lights that have red and green lights that help avoid accidents and injuries by providing clear communication between dock loading workers and truck drivers.
The original post: The New Light
Oct 31, 2012 ELV Systems
SafetyCare’s ultra-reliable PERS (Personal Emergency Response System) consists of a console that easily plugs into an electric outline and phone jack as well as a wireless, water-proof, one-button wrist transmitter.
If you require medical assistance, or in the event of another type of emergency, just press the transmitter button or the console’s alarm button. A call will be sent instantly to the SafetyCare Response Center, staffed 24 hours a day, every day.
Your console functions like a hands-free speaker-phone. Once your alarm call is received at SafteyCare’s Response Center, certified EMTs stay on the line, assessing your situation, dispatching emergency personnel to your location, and providing your vital medical history to the paramedics enroute.
- Includes console, transmitter (can be worn as wristband or pendant) and accessories
- Transmits up to 1,000′ line of sight
- SafetyCare PERS requires a monthly service fee to operate
- More info …
Source: Home Controls
Oct 30, 2012 Energy Talks
From the Industrial Revolution we learned that economic growth is inextricably linked to energy and as a result, our future is dependent upon equitable access to energy. When the Stourbridge Lion made entry as the first American steam locomotive in 1829 it was used to transport Anthracite coal mined in nearby Carbondale, PA to a canal in Honesdale that in turn linked to the Hudson River and onto New York City. Coal fueled the growth of New York and America’s Industrial Revolution because coal was cheap and more efficient than wood.
Advances in science and technology gave way to improvements in manufacturing, mining, and transportation. Energy became the catalyst to industrial growth. Steam power such as Thomas Newcomen’s steam powered pump in 1712 developed for coal mining and James Watt’s steam engine in 1765 were initially used to bring energy to market.
In terms of heating efficiency, coal at the time offered almost double the energy, pound for pound, in comparison to wood. Energy Units and Conversions KEEP Oil offers higher energy efficiencies over coal and wood, but as with most hydrocarbon fuels, carbon and other emissions are costly to our economy and environment.
With rapid growth in automobile production in the U.S., oil became the predominant form of fuel. According to the Energy Information Administration, in 2004 the U.S. spent over $468 billion on oil.
Figure 1 U.S. Energy Consumption by Fuel
We all need to become more conversant in understanding energy costs and efficiency and as a corollary, better understand the benefits of renewable energy such as solar, wind, and hydrogen fuel cells. A common metric we should understand is the kilowatt-hour (KWH) – the amount of electricity consumed per hour. The KWH is how we are billed by our local electric utility and can be used to compare costs and efficiency of hydrocarbon fuels and alternative energies.
One-kilowatt hour equals 3,413 British Thermal Units (BTUs). One ton of Bituminous Coal produces, on the average, 21.1 million BTUs, which equals 6,182 KWH of electric at a cost of about $48 per short ton (2,000 pounds). That means coal cost approximately $0.01 per KWH. To put that into perspective, a barrel of oil at $90/barrel distilled into $3.00 gallon gasoline is equivalent to 125,000 BTUs or 36.6 KWH of energy. Gasoline at $3.00/gallon equates to $0.08 per KWH. So gasoline at $3.00 per gallon is eight times more expensive than coal.
Is oil and gasoline significantly more efficient than coal? Let’s compare on a pound for pound basis. A pound of coal equates to about 10,500 BTUs or approximately 3.1 KWH per pound. A gallon of gasoline producing 125,000 BTUs weighs about 6 pounds equating to 6.1 KWH per pound (125,000 /3,413 /6). While gasoline is almost twice as efficient as coal, coal’s lower cost per KWH is why it is still used today to generate electric.
The Bottom Line: the economics of energy determines its use – coal still accounts for approximately half of our electric generation because it has a lower cost than other fuels. However, there are two factors to consider 1) the cost of carbon is not calculated into the full price of coal or other hydrocarbon fuels and 2) the cost of conventional fuel is calculated on a marginal basis while alternative fuel costs are calculated on a fixed cost basis. Meaning the cost of roads, trucks, and mining equipment is not factored into the price of each piece of coal, only the marginal cost of producing each ton of coal. For solar, hydrogen fuel cells, and wind energy systems, the cost to construct the system is factored into the total cost while the marginal cost of producing electric is virtually free. We need a framework to better measure the economics of alternative energy. The impact of carbon on our climate and global warming are clearly not measured in the costs of hydrocarbon fuels nor is the cost of protecting our access to oil such the cost the Iraq War.
Despite the carbon issues surrounding coal, (coal has higher carbon-to-hydrogen ratio in comparison to oil or gas) coal is more abundant and therefore is cheaper than oil. As electric utilities in 24 states embrace alternative energies through such programs as Renewable Portfolio Standards (RPS), perhaps the benefits of alternative energies will begin to combat the negative economics of hydrocarbon fuels.
Original post: Green Econometrics
Oct 30, 2012 Lighting Design & Controls
You might belong to those home owners who are having second thoughts on purchasing his own solar garden lights (or any other type of solar lighting or gadgets for that matter) if only because you have doubts about the efficiency of these gadgets. People somehow doubt whether or not these sun-powered gadget would really deliver what the manufacturers advertise they can do.
If many of the home owners who have already bought and installed their solar garden lights on their yards are really happy about the quality of the product that they get. Most outdoor lights nowadays are really efficient and reliable regardless of the kind of brand – this is because manufacturers are in fierce competition with one another and so they want to capture a good share of the market by selling excellent quality solar products.
What makes this type of outdoor solar lighting click? Here are some of the reasons why garden solar lights are better than the conventional outdoor lights.
Solar lights are made up of solar cells, without which the lights will not be able to work as no solar energy is harnessed. And so PV or photovoltaic cells are the special components not found in ordinary lights; they make the collection of energy from the sun and its conversion to solar power possible.
Solar garden lights are built with light emitting diode lights or LED lights. They are made of advanced materials making them several levels higher than the ordinary lights in terms of quality in providing illumination to your garden and home exteriors.
What makes garden solar lights a hit among home owners is that they are known to run efficiently for many hours in a day without any need for any battery changes. Of course being sun power-run, you never need electricity for these sun-powered gadgets. Normally, these lights that are fully exposed to the rays of the sun will be able to gather energy and transform it to power, enough for the lights to illuminate for 8 to a maximum of 10 hours non-stop.
Overall, the benefits that we can take advantage of solar garden lights are significant, although there is one drawback. In terms of illumination, these lights are not as bright as the usual lighting. Hence, many home owners really buy solar lighting as mainly accents to beautify their homes.
If you are greatly interested in other solar lights, solar panels and sun-powered gadget topics and discussions, do visit our http://solarlightsandgizmos.com/ blog.
The original is here: The New Light