Tuesday, November 29, 2011
Sunday, November 27, 2011
Commercial Or Business Fire Sprinkler Choices - Which Suppression System Will Work the Best?
Commercial and residential fire sprinkler systems and other fire suppression systems have one goal: extinguish the fire in order to prevent and minimize property loss and lives. To this end, there are approximately 6 different types of fire sprinkler systems used throughout the U.S., wet pipe, dry pipe, deluge and pre-action, foam water, and "water spray systems". The two most commonly installed sprinkler systems in commercial environments and businesses are wet pipe systems and dry pipe systems.
Wet pipe sprinkler systems are the most popular type to have installed for a number of reasons. These systems are the simplest in function and therefore the most reliable. As expected, when the temperature of an area reaches a pre-set level, the glass bulb or link located at the affected sprinkler head releases allowing the flow of water. The cost of a wet pipe system is also usually the most inexpensive to have installed and maintain. Dry pipe systems are similar in operation with one key difference. Portion of lines leading to the fire sprinkler heads are filled with air. When the temperature at each individual head exceeds the pre-set limit, the individual sprinkler head is activated.
The air filling the line is expelled, then replaced with the water supply pushing in behind. The intended purpose of a dry pipe system is to allow for freezing temperatures and greatly lowering the risk of a freezing water line causing a rupture. A system such as this type can be less effective initially in extinguishing a fire due to the delay of water reaching the sprinkler head and dousing the fire. Increased cost of installation and maintenance, as well as complexity, can be a downside to installing this type of fire suppression system. Deluge systems and pre-action systems are similar to one another in that both are activated by some type of fire alarm system.
Deluge systems are common where the risk of fire spreading quickly is a concern. Deluge sprinkler systems, when activated simply spray water from every sprinkler head simultaneously instead of individual sprinkler head activation. Pre-action system can essentially be a combination of wet, dry and deluge systems. The advantage of a pre-action system is that it can send a trouble alarm should some problems occur without activating a sprinkler head. Some of this type of fire sprinkler system can also be set up for operation only when the temperature at a sprinkler head has exceeded the pre-set and a fire alarm is activated as well, essentially serving as a double check.
Foam water and "water spray" systems are usually installed where potentially hazardous materials are located and sensitive equipment. A mixture of foam and water helps to suppress the fire while the latter system sprays water in a particular spray pattern. These last two systems are not necessary for the majority of commercial businesses. Having any of these fire sprinkler setups is not enough.
Proper maintenance, as with any machinery, is necessary for successful operation. Depending upon the individual state or even local city laws, fire sprinkler systems are required to be inspected at least once per year, often more frequently. In order to receive discounts on insurance, insurance companies will sometimes require proof of inspection. Regardless of what type of fire sprinkler system being used, the cost of installation and maintaining the system will be miniscule compared to the loss of property, life and future revenue.
Thursday, November 24, 2011
How to Price Landscape & Irrigation Projects (Greenback Series)
!±8± How to Price Landscape & Irrigation Projects (Greenback Series)
| Price : $123.49Post Date : Nov 24, 2011 07:42:05 | Usually ships in 1-2 business days
A practical, step-by-step, hands-on guide that provides a comparative analysis of the six most common methods of estimating used in the market today. It not only shows you how to price your projects accurately and confidently, but it also explains the total quality management (TQM) process and how to run your jobs (and your company) right from the bid sheet.
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Monday, November 21, 2011
Residential Fire Sprinkler System Advantages
Fire sprinklers have been used in the protection of many business establishments. But lately these fire protection systems have also gained popularity among home builders and home buyers alike. So what leads people to install fire sprinklers in their residences even if they have already installed smoke alarms? It is because smoke alarms merely alert occupants to a spreading fire in the house, but these devices cannot suppress it. Fire sprinklers on the other hand have proven to be very effective in controlling a fire and protecting people from its associated dangers.
According to the National Fire Protection Association, there were about 396,000 residential fires during 2005 in the United States. These fires had caused 3,055 civilian fire fatalities, 13, 825 civilian fire physical injuries, and .9 billion in property losses.
Studies conducted by the Federal Emergency Management Agency's United States Fire Administration show that thousands of lives could have been saved if residential fire sprinklers had been installed in those burned homes. The installation of a fire sprinkler system could have also prevented most of the fire related injuries and substantially reduced property damage.
Residential fire sprinklers are therefore very beneficial to both people's lives and properties. The advantages of these fire protection systems are further detailed below:
Quick response
The Underwriters Laboratories (UL) lists the latest available residential fire sprinklers. It features fire sprinkler heads with a quick response time that is faster than that of the standard commercial and industrial sprinklers. Due to their enhanced trigger mechanism, early suppression fast response (ESFR) residential fire sprinklers automatically activate quickly to control the fire before it can gain momentum.
Affordable cost
The current average cost for residential fire sprinklers is approximately .00 to .50 per square foot in the construction of new homes. This cost is expected to go down as home fire sprinklers get more popular and demand increases. Existing homes can also install a fire sprinkler system, but the cost is typically higher since the home has already been constructed.
Small size
Residential fire sprinklers are relatively smaller than the conventional commercial and industrial versions of these devices. Home fire sprinkler systems can also be inconspicuously installed and can be aesthetically coordinated with the color scheme of your home interiors.
Nominal installation work
During the construction of a new house or renovation of an existing one, installation of a residential fire sprinkler system will necessitate only a minimal amount of piping and labor since access to the walls, ceilings and attics is easily obtained.
Minimal water requirement
Residential fire sprinklers need less water than fire sprinkler systems designed for commercial and industrial buildings. Typically a residential fire sprinkler system can be linked to your home's main water supply.
Less costly piping requirements
The use of plastic PVC pipes has considerably lowered the piping costs. Plastic pipes are also more advantageous than metal pipes because they do not have rusting or threading problems typically associated with metal.
Individual sprinkler activation
The activation of the fire sprinklers is on an individual basis. This means that if the fire is in the kitchen, the nearest sprinkler will be the only one to activate and contain the fire in that area. Thus, water requirements and water-related property damage are both minimized.
Discounted insurance cost
Depending on the coverage type, underwriters offer discounts of about 5 to 15 % in home insurance premium to homeowners who have fires sprinkler systems installed. These values are even expected to increase in the future.
Residential fire sprinkler systems indeed offer an inexpensive, low maintenance, and inconspicuous option of fire protection. And on top of those advantages is the proven reliability of these devices in protecting your property and family from the hazards of fire. For the minimal cost of having a fire sprinkler system installed in your home, you can potentially increase the value of your property, gain discounts in your insurance premiums, and protect your family and possessions. A fire sprinkler system installed in your home is certainly a valuable investment that will become priceless should you have a fire in your home.
Saturday, November 19, 2011
TRICKLE IRRIGATION ADOPTABILITY UNDER SMALL-SCALE FARMING SYSTEM: Water Saving, Energy Cost and Economic Return for Maximizing Crop Production
!±8± TRICKLE IRRIGATION ADOPTABILITY UNDER SMALL-SCALE FARMING SYSTEM: Water Saving, Energy Cost and Economic Return for Maximizing Crop Production
Performance of Drip irrigation has been recognized throughout the world especially in terms of water saving. Even though a lot work has been done but still, a lot need to be done, under changing field environment. Present study aims at saving water with minimum adverse effects on the crop yield using Trickle Irrigation for different field crops with special reference to Energy Cost and Economic Return in irrigated environment and the results are presented in this book. This book certainly enhance learning among researcher, scientists, students and farm mangers and helps planning research studies. The authors appreciate the efforts of Barthlemy Chaton and his team in facilitating and highly acknowledge publishing of it by VDM Publishing House Ltd., for technical knowledge sharing internationally.
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TRICKLE IRRIGATION ADOPTABILITY UNDER SMALL-SCALE FARMING SYSTEM: Water Saving, Energy Cost and Economic Return for Maximizing Crop Production
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