Hybrid Rocket Motor Nozzle Tests
Update on my senior project here at Cal Poly San Luis Obispo. This video is intended primarily for my advisor, but to anyone else who isn't familiar with what I'm doing: This is a demonstration hybrid rocket motor in our propulsions lab, employing oxygen as the oxidizer and plexiglas (polymethylmethacrylate) as the fuel, with propane as the ignitor. The purpose of this motor is DEMONSTRATION of hybrid motor characteristics, NOT thrust performance. As such, the thrust is intentionally low (this is also good for safety). My senior project is to design a rocket nozzle or two that will sufficiently demonstrate to students the higher performance that can be expected from the use of a nozzle, particularly in the form of increased thrust. Cal Poly's motto is "learn by doing." I am doing exactly that. Machining new fixtures and nozzles, testing the nozzles, collecting the data, and doing everything else myself has been a learning experience, allowing me to see the design process from conception to application. If you have any questions about Cal Poly, their aerospace engineering department, or hybrid rocket motors, let me know and I'll be sure to get back to you.
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Hybrid Rocket Motor Aerospike Nozzle Tests
This is a combination of 3 test firings of an Aerospike nozzle for my Senior Project in Aerospace Engineering from California Polytechnic State University in San Luis Obispo. The test bed hybrid uses gaseous oxygen, GOX, and a 2" dia Plexiglas tube as the solid fuel. The Oxygen is at 100psi. The first test run was not choked, which was expected for the throat area is ~10 times greater than what the ideal area should be. The ideal gap between the spike and the compression cowl needed to be .003", yes, 3 thousands of an inch. However, if this were too small, this could produce a thermal choke well in front of the actual physical choke, which would reduce the performance of the rocket. I machined the compression cowl to have a gap of .053" instead. This would have allowed me to re-machine it smaller to maximize the thrust of the rocket. I planned to fire the test for only 10 seconds, however I got distracted and allowed it to fire for 20 seconds, 2-3 seconds shy of turning the two piece nozzle into 3 or more pieces, that's what all the sparks are at the end. This nozzle was machined out of 4140 Chrome-Molly. What took over 32 hours of CNC machining only took 20 seconds to destroy. The second set of fires is with the newer nozzle design which reduced the stagnation zones that burnt up the first nozzle. As you can see, this one produced over twice as much thrust than the first nozzle, this one was machined to have a throat gap of .013" which may have over choked this nozzle <b>...</b>
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Build a laminar flow nozzle for $15
gryphern.googlepages.com For organized listing of all content Forum on this topic, yahoo! laminar.forumotion.com gryphern.googlepages.com Full text transcript of this video gryphern.googlepages.com Labeled assembly photo gryphern.googlepages.com Laminar jet lit with two cheap ($1.49) novelty laser pointers. My video of walking laminar bell gryphern.googlepages.com This video shows how $15 and half an hour of assembly can produce a working barebones laminar flow nozzle that attaches to a garden hose.
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How To Make Small Sugar Rocket Nozzles (Part-1)
nichropulse.com This how-to tutorial is part-1 of a two part video. In this first part, I show you how I make consistent and accurate 3 inner-diameter rocket nozzles. I demonstrate two types: packed bentonite clay (or clay-grog) nozzles, and quick cement nozzles. I use some common tooling that is used extensively in the amateur rocketry and homemade firework community. In particular, I use the Perfect-Nozzle kit. Professional drawings and the source list are available at www.nichropulse.com for FREE. In Part-2, I will demonstrate how I load pressed sugar candy propellant in powder form. This motor can easily be loaded with other rocket propellants such as black powder propellant, APCP propellant, and casted R-candy propellant.
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Engine Company Operations: Nozzle & Back-up Techniques
The latest addition to our video training series focuses on the importance of a well coordinated nozzle team. In this video Nate DeMarse and Chris Collier demonstrate effective nozzle and back-up firefighter techniques. In this video a 2 1/2" line equipped with a smooth bore nozzle with a 1 1/8" tip was used. At 50 lbs nozzle pressure this line is flowing approximately 280 gallons per minute (GPM) and can still be moved effectively by two firefighters. The nozzle reaction of the smooth bore is approximately half that of most combination nozzles while flowing the same GPM.
Akron Brass Assault Nozzle
www.akronbrass.com - Akron® Assault Nozzles combine the quality stream performance at a variety of pressures with the simplicity of a fixed orifice. It is one of the most versatile and easy-to-use nozzles in today's fire service. Superior stream performance, a quick change pattern adjustment along with a durable and simple design makes the Assault an unbeatable value.
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RAIN BIRD - ROTARY NOZZLE TUTORIAL
Here is an interesting video that shows the benefits of using Rotary Nozzles to water the lawn. Rotary Nozzles help reduce water waste and make it easier to design systems. The Rotary Nozzle provides a low precipitation rate, highly uniform distribution, and increased radius range, all in a nozzle which fits on a standard Rain Bird spray head.
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Mercedes Benz diesel Bosio injector nozzle before and after
This project shows the before and after of installing the Bosio fuel injector nozzles on a Mercedes Benz diesel. I have an installation DVD as well as the Bosio nozzles for both the Mercedes and VW diesel cars. Buy them at dieselgiant.com
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First 5th generation multiaxis nozzle
Since 10 years all aerospace bureaus in the world tried to build something like this and today its reality. Achievements of this engine are Enormous. Russia have already constructed AL-31F-M3 which provide a higher thrust at more than 15300 kgf. This technology have no analogy in the world. Such a nozzles will be part of the first russian 5th generation jets.
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The White House The Nozzle
gradual report makes good on word to deliverSUBSCRIBE NEW SHOWS EVERY, MONDAY WEDNSDAY FRIDAY What is the gradualreport? The gradualreport is a human experiment in comedy focusing on; human interactions, human phobias, animal news, giant world events, and scientific non-achievement. These things are distilled through the mind of a weird, smart, eccentric young man named Danny Grozdich and funny is the result. Who is Danny Grozdich? Danny is your best friend on the Internet. I must repeat, "Danny is your best friend on the Internet." And though you may never meet Danny. He wants you to know that he loves you. Final Summation: Danny made these videos to teach you, and make you happy, and help you laugh at the funny side of life, because, in a world of moral ambiguity, laughter, though fleeting, is the only worthwhile certainty to pursue. Here are a few more ways to share in Danny's Internet immortality... Social Media Stuff website: www.gradualreport.com facebook www.facebook.com twitter : www.twitter.com FourSquare : foursquare.com TAGS: gradualreport gradual report gradaulreport danny grozdich comedy funny human experiment best friend internet funny comedy video ze best vlog ever new gradual report lol lmao danny kissing unicorn happy fun "fun time" learning stand up comed "best friend on the internet"
Syngenta Application Advice: Defy Nozzles
With modern crop protection products it is possible to achieve exceptionally high levels of pest, disease and weed control. However, it is those spray operators who pay absolute attention to the finer points in the art of application, who can make the crucial difference between an acceptable 95% control, and an outstanding 98% or more. Syngenta has developed a range of specialist nozzles dedicated to solving application problems and achieving better coverage, to deliver greater results every time. - Up to 30% extra weed control when used pre or post-emergence compared to vertical nozzles - Half the drift of a conventional fan jet, giving extra spray days - Designed to spray effectively at 70cm boom height, but can still be used down to 50cm - Can be used at speeds up to 16 km/hr - Angled nozzle - Variable pressure The latest application guidelines and nozzle technology from Syngenta will enable operators to reconcile the requirements of targets, products, spraying equipment and timing, to get the best possible results every time. www.syngenta-crop.co.uk
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Environmental Aeroscience - Aerospike Nozzle Solid Rocket Motor Static Firing
eAc (Environmental Aeroscience Corp) developed and fired the first solid propellant Aerospike motor in 2003. Aerospike nozzles are designed to be altitude compensating and self adjust the expansion ratio making them extremely useful for ground-launched sounding rockets. This feature is specifically useful for long burn hybrid rocket applications. Several design verification tests firings using short burn solid propellants, with the goal of applying the technology to the long burn Hybrid motors.
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Nephilim's Magic Nozzle
I recommend that you watch the videos listed below by Ozmoroid (and subscribe to his channel. Why do People Laugh at Creationists (Part 33): www.youtube.com Miracle Man and god versus science: www.youtube.com Ozmoroid: www.youtube.com Nephilim and I save the world: www.youtube.com Let's get hosed: www.youtube.com See also JRChadwick: www.youtube.com In short, there is simply not enough energy in the system (as described by nephy) to get water anywhere near the moon. The size of the outlet and/or nozzle are irrelevant. His deluded mind seems incapable of grasping this point. To answer my own question: He is not the world's greatest scientist, he is wrong.
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How To Make Small PVC Rocket Nozzles
nichropulse.com This video follows my first two 3 rocket making tutorial videos. Here, I am switching from cardboard tubes, to standard PVC. PVC holds more pressure for greater thrust. It is also cheaper. I have made a simple modification to my 3/4" Perfect-Nozzle kit to accommodate the slightly larger diameter. The homemade rocket nozzles can still be formed with anchoring cement or bentonite clay (kitty litter), however I have found that Durham's Rock Hard Watter Putty adheres to the PVC the best. I purchased the putty at the Home Depot. The two motors shown in the video are rammed sugar nitrate rockets (powdered r-candy propellant). With PVC the grain core can be made longer to get a higher pressure than in the cardboard tubes. This will give it more power to lift a heavier payload.
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Rotating Nozzle - PressureJet
Turbo-Jet nozzles have been one of the most important accessories developed. These efficient tools provide the power of a zero-degree pattern. The circular motion also adds extra agitation to cleaning tough jobs like caked-on mud. They are designed to provide a 200% cleaning efficiency over a 25-degree flat fan nozzle. The precision ceramic orifice and matching seat, along with the high strength forged brass housing; provide a long life accessory with no gears, teeth, or bearings. When the nozzle or seat wears, you can replace parts easily to extend the life even longer.
Clear Nozzle Clog and change cutting blade on Epson Printers
Andy of Pro Digital Gear will show you a method that has proven successful in clearing nozzle clogs. He also demonstrates the method of changing your cutting blade. These methods are for the Epson 4000, 4800, 4880, 7600, 7800, 7880, 9600, 9800, 9880. Pro Digital Gear assumes no liability in these methods and you will assume any risks associated with this video.
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HoncoopHighbanker Dry Land Dredge Nozzle
Don and Audrey using the 2" suction nozzle dry land dredge attachment. Filmed in mid-Michigan on November 12, 2010. This is an attachment that can fit on ANY 2" suction nozzle. It incorporates my 2" nozzle guard which restricts the rocks to 1" in size. Equipment pricing can be found at honcoophighbanker.com. NOTE: If you don't like the thought of a pretty woman prospecting, don't watch. ;)
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Nozzle and Plug Tutorial
This is how to mold a nozzle and a plug ! This is the link of Dan Pollino : www.inverseengineering.com ( seriously, buy his book, so intresting and wright really good ). Enjoy !
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Dry Land Gold Dredge Nozzle Hydro-Force 250
The new dry land suction dredge nozzle dredging for gold with the Hydro-Force 250
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Prototype 12volt venturi water pump nozzle
A water pump nozzle like a dredge uses, but only 3/4" diameter and powered by a 1000 gph 12 volt water pump. Possible replacement for a hand suction tube.
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aluminum nozzle test-delay test
This is a test to show that a metal nozzle, aluminum or steel can be threaded into pvc without melting the casing. Also testing a new delay grain ejection design. The Thai machinist made the exit too wide and too long so I never fired this nozzle. I have since had them make steel nozzles with the right size and shape which flew great. The purpose of this test is to mere show that the pvc can be protected from the heat of the metal.
North Carolina Hydro Force Nozzle PART 4
Field Testing the Hydro-Force Dry Land Suction Nozzle at Vein Mountain & Thermal City, North Carolina - PART 4
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How to install a Rain Bird 1800 series nozzle.
Website: iScaper.com Tutorial on installing a Rain Bird 1800 series nozzle onto a Rain Bird 1804 sprinkler body. Download my sprinkler repair guide iScaper for your Android phone at: goo.gl for you iPhone at: goo.gl from the Amazon App Store at: goo.gl or a PDF download for your computer at: iscaper.com Subscribe to my blog and sign-up for my newsletter at iScaper.com for more tips on sprinklers and landscaping.
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5' PVC Missile-How To Build A High Power Rocket-Part 3: Casting Nozzles
This is part 3. Casting nozzles using tile grout. Its relatively quick and simple.
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printing 3d scanned vase in Red PLA on Orca nr.1 with 1.75mm filament and .35 nozzle
printing 3d scanned vase in Red PLA at Orca nr.1 with 1.75mm filament and .35 nozzle. ps. the 3d scan stl file is also leaning forward.. so its not orca doing something wrong (what you can see @ end).. This model has alot of overhang etc.. but with the .35 nozzle at .25mm layers its pretty ok, I still need to improve the stl file so it has less triangles,.. its 400.000 facets now, which gives issues sometimes.. to be continued.
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