NUMERICAL ANALYSIS FOR (H-Q) CURVE OF CENTRIFUGAL PUMPS USING NATURAL AND CONSTRAINED CUBIC SPLINE INTERPOLATIONS
Journal Title: Journal of Mechanical Engineering Research & Developments (JMERD) - Year 2018, Vol 41, Issue 3
Abstract
This study is founded by numerical analysis to (H-Q) curve for centrifugal device pump with radial and axial flow fitted firstly with natural spline interpolation and secondly using reserved cubic interpolation spline. Two case studies are used, first one analyzed the (H-Q) curve for axial flow with high specific speed, NS, when the H-Q curve having undesirable dip due to incorrect design of the impeller. The second case study is the parallel operation for two devices (pumps) for different (H-Q) curves, the joint the curves of combination which having important point, until the suitable and working point which reached, the first one doesn’t transfer the flow. The second pump can begin to fund to the flow, it is for this reason that in such a case, the second pump should be started first and then the first pump, locate this point provides us with energy and maintenance costs. The results shown that the normal cubic interpolation which will useful to interpolate these types of curves to obtain the undesirable overshooting points than constrained cubic spline.
Authors and Affiliations
Maher Abd Almeer Kadim, Riyad Jassim Tilefih, dil Hameed Shakir
Keywords
Related Articles
- EP ID EP405961
- DOI 10.26480/jmerd.03.2018.06.08
- Views 39
- Downloads 0
STUDY ON THE BREAKDOWN OF MILLING BALLS MADE OF 13%Cr WHITE CAST-IRON WORKING IN STRONG ABRASIVE AND CLASH CONDITIONS
The breakdown due to abrasion and clash of the milling balls made of 13% Cr white cast iron is a complicated process which depends on many factors, especially on the strength of the matrix and carbide phases. As shown, s...
LEARNING OUTCOMES FOR TRAINING PROGRAM BY CDIO APPROACH APPLIED TO MECHANICAL INDUSTRY 4.0
The CDIO approach (Conceive-Design-Implement-Operate) is a model of educational reforms in technical universities towards meeting the needs of careers in the corporate and social context. The paper presents the need to b...
EXPERIMENTAL INVESTIGATION OF THE EFFECT OF BAFFLE CUT SHAPE ON SHELL SIDE PRESSURE DROP IN SHELL AND TUBE HEAT EXCHANGER
Shell and Tube Heat Exchanger (STHE) is widely used in industry due to its high performance and serviceability. The pressure drop and the heat transfer are considered as the major factors in the design of a STHE. In this...
REVIEW OF HYDROGEN FUEL FOR INTERNAL COMBUSTION ENGINESREVIEW OF HYDROGEN FUEL FOR INTERNAL COMBUSTION ENGINES
In the world that we live in today, non-renewable sources of energy are being depleted at an exponential rate. Thus, alternative sources of fuel have become more important to prevent the occurrence of an energy crisis. S...
TESTING AND ANALYSING THE GRINDING UNIFORMITY OF POLYMER PRODUCTS
This work aims to improve the uniformity of the grinding polymer materials (recycling of thermoplastic polymers) and reduce the power consumption of the grinding process for the polymer recycling process. The uniformity...