Comparison studies between pressure-controlled pump with conventional pump for domestic application

The source and infrastructure that distributes water to residences are referred to as the domestic water supply. Pumping is an important way for obtaining water from various resources where gravity alone is insufficient due to geography and side levels. Centrifugal pumps are the most common type of...

Full description

Saved in:

Bibliographic Details
Main Author:	Siti Aisyah, Jilani
Format:	Thesis
Language:	English
Published:	2024
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/42479/1/ir.Comparison%20studies%20between%20pressure-controlled%20pump%20with%20conventional%20pump%20for%20domestic%20application.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-ump-ir.42479
record_format	uketd_dc
spelling	my-ump-ir.424792024-09-03T06:46:51Z Comparison studies between pressure-controlled pump with conventional pump for domestic application 2024-01 Siti Aisyah, Jilani T Technology (General) TJ Mechanical engineering and machinery The source and infrastructure that distributes water to residences are referred to as the domestic water supply. Pumping is an important way for obtaining water from various resources where gravity alone is insufficient due to geography and side levels. Centrifugal pumps are the most common type of pumps used in residential applications. This kind of pump is affordable and simple in design. Domestic centrifugal water pumps motor conventionally works at constant speed and provide a constant output. However, constant speed pumps are not easily able to deal with changing demands in water flows which will yield excessive energy losses and water losses. Various methods of energy saving in pumping applications have been applied by several groups of researchers, such as bypass lines, throttle control, parallel pumps, and variable speed control. Therefore, this research was commenced to study pressure-controlled variable speed pumps. This research aimed to study and compare the performance of constant speed and variable speed pumps in terms of performance characteristics like water pressure, flow rate, and pump speed. Moreover, this research also aimed to analyze energy cost saving offered by the variable speed water pump. In this research, a suitable technique was proposed to change the constant speed pump to a variable speed pump by adding Variable Frequency Drive (VFD) to the conventional pump’s motor to control the speed of the pump to match the water load demand. A simple and inexpensive test rig was designed and fabricated to represent water distribution for domestic use for example single-storey home application. The method is then experimentally validated to verify the pump performance and energy saving between conventional and variable speed water pumps. The valve opening which is half open and full open also was tested to see the variation of volume flowrate and pressure difference. For the pressure-controlled variable speed pump, to maintain the pressure inside the pipe to 20.68 kPa, the speed was controlled by adjusting the frequency. The results demonstrated that variable-speed pumps are the best option for matching the required loads, saving energy and water while also increasing the economic features of electrical motors. So, we conclude that less energy is applied when the motor runs at lower speeds. Pump energy, pressure, and volume flow rate are all influenced by the valve opening. A lower volume flow rate is achieved with a smaller valve opening, which reduces energy consumption where inversely correlated to pipe pressure. Pump pressure will rise by the time the valve opening is decreasing. The smallest opening of the valve for a pressure-controlled variable speed pump can reduce energy consumption by about 92% in comparison to a conventional water pump. 2024-01 Thesis http://umpir.ump.edu.my/id/eprint/42479/ http://umpir.ump.edu.my/id/eprint/42479/1/ir.Comparison%20studies%20between%20pressure-controlled%20pump%20with%20conventional%20pump%20for%20domestic%20application.pdf pdf en public masters Universiti Malaysia Pahang Al-Sultan Abdullah Faculty of Mechanical and Automotive Engineering Technology Akhtar Razul, Razali
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Akhtar Razul, Razali
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Siti Aisyah, Jilani Comparison studies between pressure-controlled pump with conventional pump for domestic application
description	The source and infrastructure that distributes water to residences are referred to as the domestic water supply. Pumping is an important way for obtaining water from various resources where gravity alone is insufficient due to geography and side levels. Centrifugal pumps are the most common type of pumps used in residential applications. This kind of pump is affordable and simple in design. Domestic centrifugal water pumps motor conventionally works at constant speed and provide a constant output. However, constant speed pumps are not easily able to deal with changing demands in water flows which will yield excessive energy losses and water losses. Various methods of energy saving in pumping applications have been applied by several groups of researchers, such as bypass lines, throttle control, parallel pumps, and variable speed control. Therefore, this research was commenced to study pressure-controlled variable speed pumps. This research aimed to study and compare the performance of constant speed and variable speed pumps in terms of performance characteristics like water pressure, flow rate, and pump speed. Moreover, this research also aimed to analyze energy cost saving offered by the variable speed water pump. In this research, a suitable technique was proposed to change the constant speed pump to a variable speed pump by adding Variable Frequency Drive (VFD) to the conventional pump’s motor to control the speed of the pump to match the water load demand. A simple and inexpensive test rig was designed and fabricated to represent water distribution for domestic use for example single-storey home application. The method is then experimentally validated to verify the pump performance and energy saving between conventional and variable speed water pumps. The valve opening which is half open and full open also was tested to see the variation of volume flowrate and pressure difference. For the pressure-controlled variable speed pump, to maintain the pressure inside the pipe to 20.68 kPa, the speed was controlled by adjusting the frequency. The results demonstrated that variable-speed pumps are the best option for matching the required loads, saving energy and water while also increasing the economic features of electrical motors. So, we conclude that less energy is applied when the motor runs at lower speeds. Pump energy, pressure, and volume flow rate are all influenced by the valve opening. A lower volume flow rate is achieved with a smaller valve opening, which reduces energy consumption where inversely correlated to pipe pressure. Pump pressure will rise by the time the valve opening is decreasing. The smallest opening of the valve for a pressure-controlled variable speed pump can reduce energy consumption by about 92% in comparison to a conventional water pump.
format	Thesis
qualification_level	Master's degree
author	Siti Aisyah, Jilani
author_facet	Siti Aisyah, Jilani
author_sort	Siti Aisyah, Jilani
title	Comparison studies between pressure-controlled pump with conventional pump for domestic application
title_short	Comparison studies between pressure-controlled pump with conventional pump for domestic application
title_full	Comparison studies between pressure-controlled pump with conventional pump for domestic application
title_fullStr	Comparison studies between pressure-controlled pump with conventional pump for domestic application
title_full_unstemmed	Comparison studies between pressure-controlled pump with conventional pump for domestic application
title_sort	comparison studies between pressure-controlled pump with conventional pump for domestic application
granting_institution	Universiti Malaysia Pahang Al-Sultan Abdullah
granting_department	Faculty of Mechanical and Automotive Engineering Technology
publishDate	2024
url	http://umpir.ump.edu.my/id/eprint/42479/1/ir.Comparison%20studies%20between%20pressure-controlled%20pump%20with%20conventional%20pump%20for%20domestic%20application.pdf
_version_	1811769666414051328

Comparison studies between pressure-controlled pump with conventional pump for domestic application

Similar Items