Design and construction of an educatinal pump bench with operational controls

Güner, Berkay
System characteristics of automated pumping systems may change due to wear, aging of piping, and accumulation of deposits in the system and/or due to configuration changes. Such changes might result in conflicts between the controlling algorithms and the actual system requirements for each particular case. The said mismatch between the actual physical system and the software controlling it, may result in inefficient operation of the pump which may even lead to total system failures (overpressurization of instrumentation and sensing elements etc.) due to temporary malfunctioning of the system components or permanent damages incurred by them during operating under unsuitable conditions. It is intended in this study to design and construct an experimental automated pump bench with operational components (mechanical, electronical and instrumentation etc.), serving in a system introducing multiple geometric heads and its controlling and monitoring software in order to visualize effects of the above-mentioned cases for education and training purposes. System characteristics data acquisition module (system test module) provides the means of recognizing new pump and system characteristics, provided that they were changed due to some reason (throttled valve, changed pump speed, changed flowrate or elevation of discharge etc.). Then the pump operation module enables users to make comparative judgments by observing the effects of the abovementioned changes. Above-mentioned testing sequence and monitoring of changing physical quantities were achieved by employing four pressure transducers, a custom made DC motor operated -throttling valve with position feedback which was designed and constructed specifically for this study and a variable frequency drive (VFD) which were all connected to a custom made Main Control Circuit (MCC) Board.


Design and simulation of a vapor compression refrigeration cycle for a micro refrigerator
Yıldız, Seyfettin; Okutucu Özyurt, Hanife Tuba; Department of Mechanical Engineering (2010)
Cooling of electronic equipments has become an important issue as the advances in technology enabled the fabrication of very small devices. The main challenge in cooling is the space limitation. The use of miniature refrigerators seems to be a solution alternative for the cooling problem. The objective of this study is to design and simulate a vapor compression refrigeration cycle for a micro-scale refrigerator. A MATLAB code is developed for the simulations. The four components of the refrigerator, namely,...
Friction analysis in cold forging
Cora, Ömer Necati; Akkök, Metin; Department of Mechanical Engineering (2004)
Friction is one of the important parameters in metal forming processes since it affects metal flow in the die, forming load, strain distribution, tool and die life, surface quality of the product etc. The range of coefficient of friction in different metal forming applications is not well known and the factors affecting variation are ambiguous. Commercially available FEA packages input the coefficient of friction as constant among the whole process which is not a realistic approach. In this study, utility o...
Design improvements on mixed flow pumps by means of computational fluid dynamics
Özgen, Onur; Albayrak, Kahraman; Department of Mechanical Engineering (2006)
The demand on high efficiency pumps leads the manufacturers to develop new design and manufacturing techniques for rotodynamic pumps. Computational Fluid Dynamics (CFD) software are started to be used during the design periods for this reason in order to validate the designs before the pumps are produced. However the integration process of CFD software into the design procedure should be made carefully in order to improve the designs. In this thesis, the CFD software is aimed to be integrated into the pump ...
Effect of strain history on simulation of crashworthiness of a vehicle
Doğan, Uluğ Çağrı; Gökler, Mustafa İlhan; Department of Mechanical Engineering (2009)
In this thesis the sheet metal forming effects such as plastic strain and thickness changes in the crash have been investigated by numerical analysis. The sheet metal forming histories of the components of the load path that absorbs the highest energy during a frontal crash have been considered. To find out the particular load path, the frontal crash analysis of Ford F250 Pickup has been performed at 56 kph into a rigid wall with finite element analysis without considering the forming history. The sheet met...
Simulation of flexible manufacturing systems: a pilot implementation
Yücel, Necati Deniz; Kılıç, Sadık Engin; Department of Mechanical Engineering (2005)
Manufacturing industry has made extensive use of simulation as a means of trying to model the impact of variability on manufacturing system behavior and to explore various ways of coping with change and uncertainty. Simulation helps find optimal solutions to a number of problems at both design and application stages of Flexible Manufacturing Systems (FMS̕s) serving to improve the أflexibilityؤ level The flexibility requirement of FMS necessitates the dissemination of every activity that concerns production,...
Citation Formats
B. Güner, “Design and construction of an educatinal pump bench with operational controls,” M.S. - Master of Science, Middle East Technical University, 2004.