I
would acknowledge that my renders along with indebtedness my warmest thanks with
the professors who created my work very possible and excellent. The guidance of
plus the expert advice of the professor is very invaluable by the different
stages of the works. Now I would to express the very humble thanks to my
respected professors for the extended discussions with the valuable suggestion
that have the greatly improvements of my report.
The
thesis has also benefited from comments and suggestions made by Princess of Wales, Jesus, who have read through the manuscript. I take
this opportunity to thank them.
Introduction of
Pumps, pump characteristics, pump selection, applications to power plants
The
machine which converts the mechanical energy into the fluid energy like the
kinetic or the potential, then the fluid is being incompressible is known a
Pumps. The Pumps is also supposed as the action which is completely opposite of
the turbine. In the pumps, the movements of the mechanism and the other blade
systems moves a fluid that is in the contact by the blade and converting the mechanical
energy for the mechanism to the kinetic energy. The perfect conversion of the blade,
which is required in the contact by the fluid at all the places, then the blade
is simply immersed in the fluid (Jiang and et.al).
Now
in the centrifugal pump is the rotodyanmic pump which uses the rotating
impellers to increase fluid pressure. The centrifugal pumps are mostly used to
move the liquids by the piping systems. A fluid which enters into the pumps and
has the impellers is near to the axis which is rotating and accelerated. Whereas
the centrifugal pumps are used for the large through smaller heads. The
subclass of the dynamic work is the centrifugal pump, which is absorbing the turbomachinery,
and it is also used to transport fluids through the rotational conversions for
the kinetic energy into the hydrodynamic (Couzinet and et al.).
Figure
1: Centrifugal Pumps
Objectives of
Pumps, pump characteristics, pump selection, applications to power plants
The
objective of the research study is to;
To study the Pumps in details with methods,
result
To become familiar with the Pump selection
To explore the applications of Pumps in
power plants
Focus on the characteristics of the Pumps
Theory of
Pumps, pump characteristics, pump selection, applications to power plants
The
performances of the pumps always decrease the under two-phase flow, which is
the conditions, and it is compared to the single-phase one. The level of the degradations
is always depended on the specific speed of the pumps, fluid properties, local geometry,
along with the thermal conditions. In this research study the objective of the
research studied is given below as explained;
Pump selections of Pumps, pump
characteristics, pump selection, applications to power
plants
There
are the following parameters which must be kept in mind, when selecting the
pumps (Kitch );
Maximum Operating pressure
Type of control
Maximum delivery
Pump drive speed
Type of fluid
Weight & Size of pump
Pump efficiency
Cost
Pump Noise
Pump contamination tolerances
Whereas
the pumps have different types as shown in the below figure;
Figure
2: Type of Pumps
Characteristics of Pumps
There
are following characteristics of the pumps which can be classified in different
ways;
Q-H curve
Efficiency Curve
Power Curve
NPSH( Net Positive Suction Head) Curve
The
explanation of each Characteristic is explained in the below methods and the procedures
sections (energy.gov);
Application of Pumps in Power Plants
The
pumping system as well an as the pumps which are used in the power plants applications
is like the fuel of the oil handling as well as for the auxiliary system like
the cooling and the lubrication , the average .
Condensates Pumps
Condenser circulating pumps
Boiler circulating pumps
These
pumps are used in the power plant, whereas the condensate pumpscollect the
saturated water from a condenser of pump along with the hot well and it either
to de-aerating the heater for the boiler feed pump (Karume).
There
are following applications of the pump which is used;
Network and pump characteristics
Pump layout
Variable Speed and Flow Control of pump
Pumping station layout
Method or procedures of
Pumps, pump characteristics, pump selection, applications to power plants
These type of pumps are designed to collect
the wastewater from the given area and then transport this water towards the
highest point of elevation, and these are also called lift station. This is
because it carries water from one point to another. These type of station are
designed for handling the wastewater from the underground or may form the
gravity pipelines. Then after this that water will be stored in the underground
pit. In the pumping station, there is wet well that is fixed with electrical
instruments. These electrical instruments are involved in sensing the level of
water that is present in the well.
For the analysis of the pumping stations from
the heterogeneous sensor data, the data-driven extraction used the analytical
methods which are dependent on a type of the data collected, and it is very
important and the unique structure along with the characteristics of a pumping
which is used to evaluate the data and it is organized with the variety of
sources. Whereas every source produced the sensor data which is needed and
included the numerical (like the sensor readings, is ON, OFF, and it is
structured with the variables.
In the
first methods, conduct a trend and breakpoint analysis of the data,
this method to detect patterns in the data and when those patterns change.
Study the maintenance log and train a
detection tool on a sample set of data-driven methods is developed on the
pumping stations.
Time-dependent
model is also used for the analysis of the pumping stations, which is
describing the estimation and failure rate of the statistical descriptions.
The
methods which are calculating a rated flow by the pumping section of the pump
in a pressure differential
Differential
pressure is detecting across the pump which is computed (Newhart and et.al)
Results of
Pumps, pump characteristics, pump selection, applications to power plants
In
the different cases of the results of the pumping stations; the data-driven
from the sensor of the heterogeneous data is used, with the hierarchically by
the number of the wastewater pumping stations and it is spread by a catchment
area of the transport. Through the pressure lines of the sensor of the
heterogeneous data, the main sections of the pumping stations pump the
wastewater. Whereas it is observed in the catchment area, which is involving
the pumping stations. Thus the main pumping stations is the critical and most
identified pumping station of the systems. The FTA methods which are used in
the above results of the pumping stations, its identify the pumps which are
main critical pumping stations.
The
pump performances, which is explained through the Q-H Curve, giving the relation
among the volume flow point plus the pump curve, as shown in appendix 1. The
characteristics of the network could theoretically be calculated by combining
the proper in a network to the pipe only. By using the network model along with
the calculations of the program which is more feasible options as shown in
appendix 2;
Discussion of
Pumps, pump characteristics, pump selection, applications to power plants
The
research study is about the study of the pumps, Characteristic of pumps, for
the analysis of the pumping stations form the sensor of the heterogeneous data.
Then the further explanations are about the scope of the pumping stations pumps
systems the power plants applications of the pumps and explains the theory
section with the pumping stations. In the methods section, there are several
methods which are explained for the further study of the pumping stations along
with the analysis of the pumping stations (Ocw.tudelft.nl).
Conclusion on
Pumps, pump characteristics, pump selection, applications to power plants
Summing
up all discussion and the information about the research study, the focused of
the research study is on the different methods of the pumping stations. The main aim of the reports is to
provide specific applications of the pumps in the power plants, along with the
details study about the pumps and its description can be used for getting the proper information
from different pumping stations. In this research study, the objective of the
research is full filled, as shown in the above explanations. The methods and
result sections of the study are proper explained according to the given requirements
Recommendations
of Pumps, pump characteristics, pump selection, applications to power plants
If the installations involve in standby as
well as main pumps, then rotate their usages at least one in a month.
Do not expose the clod rotary displacements,
which is positive and pumps to the liquids.
For the pumps, the control systems must provide
protection in the event of the power failure
Couzinet, Anthony and et al. "haracteristics of
Centrifugal Pumps Working in Direct or Reverse Mode: Focus on the Unsteady
Radial Thrust." International Journal of Rotating Machinery
(2013).
<https://www.researchgate.net/publication/258391816_Characteristics_of_Centrifugal_Pumps_Working_in_Direct_or_Reverse_Mode_Focus_on_the_Unsteady_Radial_Thrust>.
energy.gov. Energy Tips – Pumping
Systems. 2 October 2005. <https://www.energy.gov/sites/prod/files/2014/05/f16/pump_selection.pdf>.
Jiang, Qifeng and et.al. "A Review
of Design Considerations of Centrifugal Pump Capability for Handling Inlet
Gas-Liquid Two-Phase Flows." Energies (2019): 1-18.
Karume, Nita . Types of pumps used in
power plants. 17 September 2018.
<https://www.pumps-africa.com/types-of-pumps-used-in-power-plants/>.
Kitch , David M. . "PUMP SELECTION
AND APPLICATION IN A PRESSURIZED WATER." (2018): 47-58.
<https://pdfs.semanticscholar.org/2384/7663010fa08f5a8fa7514a21c5920e3461c6.pdf>.
Newhart, Kathryn B. and et.al.
"Data-driven performance analyses of wastewater treatment plants: A
review." Water Research (2019).
<http://sci-hub.tw/https://www.researchgate.net/publication/331942628_Data-driven_performance_analyses_of_wastewater_treatment_plants_A_review>.
Ocw.tudelft.nl. Pumps and pumping
stations. 2019.
<https://ocw.tudelft.nl/wp-content/uploads/pumps_and_pu.pdf>.