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.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12605754/index.pdf |
| Date | 01 December 2005 |
| Creators | Guner, Berkay |
| Contributors | Albayrak, Kahraman |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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