Table of Content
Overall, this project was a blast to design, and hopefully it was for you to build it yourself. Take 2 gray end cap connectors and connect them with a black/green peg. Do this a total of two times, and thread one end onto the top blue bar and the top red bar between the 25-tooth module and the end of the gearbox. (This configuration is shown above.) This will act as braces should there be much pressure put on the 25-tooth module. Thread 3 gray spacers, followed by 2 blue spacers, onto the red bar. Now thread this through the hole on the top orange pass-through connector.
Doesn’t require fine intake screening for debris as it passes all but the largest of debris, making it less maintenance with little to no trash rack cleaning. There is a course intake grate to keep out the very large debris and for safety purposes. Mix a few drops of food coloring with one cup of water in one of the bowls. Place it where it will catch the water which comes out the top of the tube. Using the duct tape, tape one end of the narrow tubing onto one end of the plastic bottle, leaving about 1 cm hanging out over the end.
WHAT IS THE ARCHIMEDES SCREW
Connect 2 blue bars to the ends of an orange pass-through connector. Thread the red bar through the hole on the orange connector, and connect the exposed ends of the blue bar to the top-level right angle connectors. Next, place 2 gray spacers on the bar, followed by a pink A-shaped pin connector, and then a gray end cap with a blue bar coming out of it. (The pin should be inserted into the gap on the gray end cap.) Follow with 2 gray spacers and a black end cap. Therefore to make micro hydro possible something has to change, something has to be done differently from the current processes used for larger hydro project development in order to change the economics.
We follow the UK Environment agency’s guidelines that have been developed over several hundred installations and studies. Simple weight of the water turns the screw, which turns the gearbox which turns the generator. The post DIY Mimic Robot appeared first on Online ScienceStore.pk.
Latest Experiments
If you can get a good seal between the screw and the sleeve, you can get water moving, however this can be a bit tempermental depending on how aggressive you are with sandpaper, should it be needed. Place 6 yellow bars horizontally away from the red corner piece, as shown. Archimedes’ screw is an ancient contraption to pump water up an altitude.
Simply put, a large gear with 200 teeth will turn a smaller gear with 100 teeth twice for every one rotation made by the larger gear. In this way, we can take advantage of the special properties of levers, which allow us to take a set amount of force, and spread it over a larger distance. Gears are especially useful everywhere in engineering as they combine the wheel and axle and lever, resulting in a device seen everywhere rotational movement is needed. The output shaft of the gearbox from this project will be connected via a pulley to the Archimedes Screw, allowing us to pump water, marbles, etc., at four times the speed at which we are turning the input shaft.
Cold weather performance of the Archimedes Screw System
We know that a lot of people don't have access to a CNC machine so the discs can also just be bent into shape during the welding process using a hammer. Wrap the flexible tubing around the pipe, leaving about 2½cm / 1" between intervals, until you reach the end of the PVC pipe.
While the top surface of the water may freeze, the water always flows, and to prevent icing of the screw as it rotates we have a simple air seal arrangement at the intake and at the water exit. At the entrance is a simple concrete slab that extends just below the water and at the water exit, stop logs do the same thing. This prevents cold air from entering the screw chamber and generator room. With the thermal mass of the water and the small amount of heat emitted from the generator, the generator room stays just above freezing without any external heat source.
Be the First to Share
The simple design is so effective that it is still used in modern-day applications, such as moving wastewater at treatment plants because they do not clog easily. For more information about the history, science, and modern uses of the Archimedes screw, see the link in the Additional Resources section. This activity is not recommended for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data.
To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation. The Archimedes Screw has been used for pumping water for over 2000 years. Applying the principle in reverse, the same equipment now offers a new method for generating power from water, providing a fish friendly and highly efficient alternative to a conventional turbine. Each Archimedean Screw hydropower system is manufactured to be site-specific, with a choice of designs depending on which is the most appropriate and cost-effective for each individual site.
Archimedes screw systems are run of river systems and therefore the timing and variation of water flows is unaffected. Archimedes screw systems do not attempt to “store up” water in a reservoir. The screw generator is capable of handling flows from 100l/s – 10m3/s each. All the turbines have a gearing mechanism that drives the generator, but they differ in the manner by which the energy is extracted from the fall of water and converted into mechanical rotation. The mechanical rotation is then converted into electrical energy. Increases flood flow capacity of the site – when installed off to the side of the main weir structure, the screw adds to the flood flow capacity of the site.
This means that small dams/weirs are now useful valuable assets once again as they were historically and now a valuable assets as we clean up our air, renew our economy and reduce our reliance on foreign oil. Small dams can be functioning, economically viable hydropower dams. The power that we can be derived from a hydro site is a function of the head, or height, of the vertical drop and the volume of water in the river. The bigger the head and the bigger the volume of water the more power can be generated.
No comments:
Post a Comment