POOL COVER MECHANISM - Copy - PARTH ENGINEER SUBJECT:...

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Unformatted text preview: PARTH ENGINEER SUBJECT: REPORT ON SWIMMING POOL COVER BASIC INSTALATION AND MECHANISM CLASS: Me416 GUIDED BY : PROF. LANDSBERGER HOW POOLS LOSE HEAT? Pools lose energy in a variety of ways, but evaporation is by far the largest source of energy loss for swimming pools. When compared to evaporation, all other losses are small. The reason evaporation has such an impact is that evaporating water requires tremendous amounts of energy. It only takes 1 Btu to raise 1 pound of water 1degree, but each pound of 80 water that evaporates takes a whopping 1048 Btus of heat out of the pool. An automatic pool cover and a manual model, both types of cover work pretty much the same way, but there is a lot more work involved in using a manual cover. WHY POOL COVERS? Since evaporation is the major source of heat loss for all swimming pools, to minimize evaporation one must cover the pool. Covering the pool with a pool cover when it is not in use is the single most effective means of reducing pool heating costs . Savings of 50-70% are possible. OUTDOOR POOLS . The diagram below (Figure 1) illustrates the impact of evaporation on the total energy consumption of the outdoor pool. The evaporation rate from an outdoor pool varies Figure 1 Outdoor Pool Energy Loss Characteristics. Depending on the temperature of the pool, the temperature and humidity of the air, and the wind speed at the pool surface. The higher the pool temperature and wind speed and the lower the humidity, the greater the evaporation rate. BASIC TWO TYPES OF POOL COVER MECHANISM 1)Manual Pool Covers Manual covers usually have a hand crank at one end. As you can imagine, cranking in a long pool cover is going to be quite a workout. On the other hand, if you have a uniquely shaped pool, you may not have much choice except to use a manual cover, as an automatic design may not be available for your pool layout. 2)Automatic Pool Covers An automatic pool cover roller works at the push of a button, retracting or extending the pool cover in a matter of seconds. Automatic covers are definitely easier to operate, especially in case of emergency. Convenience through Automation An electric pool cover can be set on a variety of timers. For example, you can connect a remote control box that allows you to trigger the mechanism from anywhere in the area. You could also use rain, wind or humidity sensors to help protect your pool when bad weather looms. GENERAL POOL COVER MODELS Recessed Under Guide If you are building or remodeling a pool, now is the time to have your automatic pool cover installed. It will be too late to provide the most custom and aesthetically pleasing options if you wait till after the pool is built. If safety, pool efficiency, cleanliness, and convenience are important to you, we recommend that you find out what needs to be done to add an automatic pool cover. We can work with standard rectangular pools to more elaborate designs including raised walls, raised spas, vanishing edge,...
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This note was uploaded on 12/05/2010 for the course ENGINEER me430 taught by Professor Landsberger during the Spring '10 term at California State University Los Angeles .

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POOL COVER MECHANISM - Copy - PARTH ENGINEER SUBJECT:...

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