Sources: David Steward, 785-532-1585, steward@k-state.edu;
Paul Bruss, pjb2@k-state.edu; and Brady Hedstrom, bradyh@k-state.edu
Photos available. Contact media@k-state.edu or 785-532-6415.
News release prepared by: Kristin Hodges, 785-532-6415, khodges2@k-state.edu
Monday, May 18, 2009
K-STATE ENGINEERING 1xbet online casino DESIGN, BUILD SUCCESSFUL PUMP THAT IS USED IN LOCATIONS WITHOUT ELECTRICITY
MANHATTAN -- In locations without electricity, ram pumps can be built to pump 1xbet online casino to a higher elevation than the 1xbet online casino source at a lower elevation. Kansas State University engineering students were interested in learning about the apparatus, and their interest has resulted in a successful pump.
David Steward, associate professor of civil engineering at K-State, teaches a course on hydraulic engineering, which is the control of 1xbet online casino , and assigns a class design project. This spring, his students designed and helped build a ram pump.
&1xbet online casino ;We've gotten the students actively involved in designing an apparatus for the hydraulic engineering laboratory,&1xbet online casino ; Steward said. &1xbet online casino ;As I've taught the class, I've tried to pick a new area that would be of interest to the students each semester.&1xbet online casino ;
Steward said the students take two weeks to design a new apparatus; next, 1xbet online casino is built with some student involvement; and then 1xbet online casino is tested. This semester, Steward did not have a selected topic and asked the class for suggestions.
Paul Bruss, senior in civil engineering, Lenexa, is a member of K-State's Engineers Without Borders, a nonprofit organization that partners with developing communities. He heard about the concept of ram pumps when the founding president of Engineers Without Borders-USA spoke at K-State in November 2008. Bruss told the class about the idea, and the 1xbet online casino decided they wanted to try to design a ram pump.
&1xbet online casino ;It's kind of a way to exploit the idea,&1xbet online casino ; Bruss said. &1xbet online casino ;I was interested in building one, but this way we could have the whole class do it. We could use everyone's ideas.&1xbet online casino ;
Steward said ram pumps are used in locations with no electricity, such as in developing nations. They take 1xbet online casino from a lower elevation and discharge it at a higher elevation through the inertial forces associated with moving 1xbet online casino and the properties of elasticity of 1xbet online casino and pipes to lift 1xbet online casino .
The 38 1xbet online casino in the class made teams of three or four and created designs. A voting process was used to decide which apparatus to build, and then the class went back through the calculations to make sure everything would work.
Brady Hedstrom, senior in civil engineering, Chapman, was a student in the class and worked in the K-State civil engineering shop. He put together a comprehensive parts list for the pump, and then the 1xbet online casino were ready to build.
&1xbet online casino ;In one of our lecture sessions, we all went into the civil engineering shop,&1xbet online casino ; Steward said. &1xbet online casino ;The students got hacksaws and everything we needed. We built the entire pump in an hour. We took it out at the end of class and tried it out, and it worked.&1xbet online casino ;
Hedstrom said a ram pump has to be four or five feet lower than the 1xbet online casino source. The students' pump has a spring-loaded check valve, and when the 1xbet online casino flows past it, and when it builds enough velocity, the valve will slam shut and create a 1xbet online casino hammer effect, which sends a pressure wave back through the pipe.
He said this forces 1xbet online casino up into a smaller reservoir, which also has a one-way check valve. That pressure forces up into the reservoir and compresses the air. When the pressure dissipates below, 1xbet online casino can't flow back down because that valve will shut. The 1xbet online casino is then forced out the top through the sprinkler head.
&1xbet online casino ;I understood the concept in class, but I was surprised that we got it to work,&1xbet online casino ; Hedstrom said.
The pump was displayed at K-State's All-University Open House in April. It will be installed in K-State's hydraulic engineering lab and will be used in subsequent classes to demonstrate 1xbet online casino hammer properties.
Steward's course is a senior-level design class. He said he started assigning a class design project when equipment in the hydraulic engineering lab was damaged. Past students have created a pipe flow demonstration, an apparatus to demonstrate levee failure, and a wave tank designed to understand tsunamis and the mechanisms between deep and shallow 1xbet online casino waves.
&1xbet online casino ;The students have really felt empowered I think in every experience by creating something, designing it, having it work, and then knowing that what it is they're creating is going to be used in subsequent semesters,&1xbet online casino ; Steward said. &1xbet online casino ;They feel like they're doing something useful and meaningful, and they understand why it is that they study math, physics and all those courses they had in their early undergraduate career.&1xbet online casino ;
