Apparatus for determining the technical characteristics Of pumps and compressors | Aparatura za određivanje tehničkih karakteristika pumpi i kompresora

The technical development of civilization is conditioned by the increasing numberof devices and apparatus that surround us, which we are most often unable tosubstantially understand the principles of their operation. As a result, such devices aremost often incompletely or even incorrectly used, or not all are used in optimalparameters and in all the functions for which they are designed. Unfamiliarity with theessence of the operation of pumps and compressors results in many engineers notknowing how to correctly select the type of pump and compressor for particularoperating conditions, ie fluid transport. The consequence of poor selection of thesedevices is the increased energy consumption for their operation, the load on thenetwork where the fluid flows, the high or low pressure at the desired points along theinstallation, reduced utilization, etc. Poor selection also entails dysfunctional operationof other devices that depend on the operation of pumps and compressors, resulting ina poor quality product or service provided by that equipment. For the above reasons,an apparatus has been made that demonstrates the principle of operation of pumpsand compressors in a simple manner. The apparatus visually presents the principle ofoperation of the pumps and compressors and demonstrates in a simple manner howelectricity is converted into the energy of the pump impeller and then converted intothe potential, static and dynamic energy of the fluid over which it is operated.This paper shows that the measured H-Q curves are in good agreement with thetheoretical Bernoulli equation. The functionality and application of Bernoulli'sequation and its detailed analysis are best demonstrated on the apparatus. Theapparatus is intended for all those who need to know properly the technicalcharacteristics of pumps and compressors and how these characteristics can bemeasured.