The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
This document evaluates the adequacy of the time allotted for contractors to submit tenders for public building projects in Nigeria. It analyzes responses from 78 public clients and contractors on currently allowed tendering durations versus what is considered adequate. Results show 75% of contractors feel the time allowed is sufficient, while 84% of clients agree. However, statistical analysis reveals no significant difference between the mean durations currently allowed (3.05 weeks) and what is adequate (3.15 weeks). The document recommends establishing construction regulations to standardize tendering durations based on project complexity. It also suggests efforts to timely approve budgets to reduce pressure on procuring entities.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Productivity and Quality Improvement Through Setting Parameters in...IRJET Journal
This document discusses parameters that affect quality in hot rolling mills. It summarizes that:
1) Parameters like draft, spreading, roll speed, slip factor, and roll force can impact quality if not properly set initially.
2) Quality can also be affected by improper roll gap, excess temperature, roll force changes, roll deflection, internal stresses, billet dimensions, roll convexity, and non-homogeneous material flow.
3) Optimizing parameters like these can improve productivity by reducing defects and increasing output.
The energy audit was conducted at a metal fabrication and casting company in Nigeria to identify areas of energy waste and potential savings. Data was collected on the company's electricity consumption over the past year, equipment power ratings, and lighting load. Analysis found the average monthly electricity consumption was around 8,500 kWh, with usage varying monthly. Machines were found to operate at low average loads of 62% and low power factors of 0.674 lagging. Recommendations will be provided to reduce power consumption through equipment replacements or process changes that save energy with payback periods less than equipment lifespans.
IRJET- Design of Fixture for Wind Mill Door SegmentIRJET Journal
This document describes the design of a new fixture for manufacturing door segments for wind turbines. The new fixture was created to reduce production time for processes like segment cutting. It allows two plates to be cut simultaneously for certain wind turbine models. Analysis showed the new fixture could reduce total work time for door segment production from 285 minutes to 268 minutes by streamlining some steps. It is expected to increase production rate and reduce labor requirements compared to the existing fixture design.
2009 2013 deep research report on china wind power equipment industry chainqyresearch
This document provides a summary of a 946-page research report on China's wind power equipment industry chain from 2009 to 2013. It was published in September 2009 by QY Research Group and included detailed analysis of industry trends, key manufacturers, production and demand for wind turbines, blades, gearboxes, generators, bearings, and control systems. The summary highlights that China's wind power installed capacity grew rapidly during this period and that the government implemented new pricing policies and regional development goals to further stimulate industry growth.
India is a land of abundant resources but ill managed due to complex matrix of reasons. Though there is a wide gap between supply and demand, supply is restricted due to political reasons and non-realisation of bills. Units are forced to cycle with load following or shutdowns on account of non-availability of coal, transmission bottle necks and other reasons. The Plant Load Factor of India has been declining from 75.08% in 2010-11 to 69.95% in 2012-13.
Thsi papaer on “ Cycling-Bane for Power Utilities “was submitted for Power Plant Efficiency and Reliability conference ( 2nd to 4th april’14). , Koulalampur, Malaysia by Eventful Power.
This paper discusses various reasons for cycling in India with emphasis on coal and transmission bottle necks. It also covers effects and damages inflicted by cycling in power plant equipment.
Please share your feedback on "pothalakrao@gmail.com"
Development And Testing Of Parabolic Through Collectors For Domestic Applicat...IRJET Journal
- The document describes the development and testing of a parabolic trough collector for domestic water heating applications.
- An experimental setup was created using grade 204 stainless steel for the reflector and copper tubing for the absorber. Testing showed a slight increase in water outlet temperature compared to a simple parabolic trough collector design.
- The results demonstrate the potential of this low-cost design for solar water heating in homes, with applications also including water desalination and increasing steam power generation.
This document describes the fabrication of a multipurpose dryer. It consists of a heating element, DC motor, blower, frame, battery, bearings, gears, and a heater control system. The blower blows hot air from the heating element to dry crops using the motor and gear system. The dryer can also be used as a room heater and is portable. It aims to provide a low-cost option for drying crops without using much energy.
IRJET- Comparative Performance Study of Mine Trucks by Overall Equipment Effe...IRJET Journal
This document discusses measuring the effectiveness of mining equipment using Overall Equipment Effectiveness (OEE). OEE is calculated based on availability, performance, and quality to identify sources of productivity loss. It presents a method to calculate OEE for trucks used in open pit mines based on time loss classifications like scheduled maintenance, breakdowns, setups, waiting times, reduced speeds, and quality defects. Calculating OEE using a calendar time-based approach rather than loading time provides a more accurate assessment of actual equipment utilization. Regular OEE measurement can help mining operations improve productivity by reducing downtime and other inefficiencies.
Portable Small-Scale Vertical Axis Wind Turbine with Pitch Angle Control Syst...IRJET Journal
This document describes the design and computational fluid dynamics (CFD) simulation of a portable small-scale vertical axis wind turbine with variable pitch angle control. The turbine uses a novel four-bar linkage mechanism to vary the pitch angle of each blade independently using servos. This is intended to improve energy absorption and output power by varying the lift force on the blades. The design aims to make the turbine portable for use in remote locations. CFD simulations using Ansys Fluent were conducted to analyze turbine performance at different pitch angles and tip speed ratios. The results will help optimize the pitch angle control system to maximize power output.
Comparing the thermal power plant performance at variou 2IAEME Publication
This document discusses an energy audit that was conducted at the Panipat Thermal Power Station (PTPS) in India to analyze the performance of Unit 7, which has a maximum capacity of 250MW. It provides background on PTPS, including its overall generation from 2000-2010. The audit analyzed the total system to identify improvement areas from an energy cost or quantity perspective. It involved detailed data collection and analysis of equipment like the boiler, turbine, generator and condenser. The goal was to determine efficiency and conservation potential to help address India's growing energy demand and environmental issues.
Comparing the thermal power plant performance at variou 2IAEME Publication
This document discusses an energy audit that was conducted at the Panipat Thermal Power Station in India to analyze the performance of Unit 7, which has a maximum capacity of 250MW. It begins with background on energy audits and their importance in improving energy efficiency. It then describes the methodology used, which was a total system audit analyzing the entire energy system in detail. The audit evaluated the efficiency of all equipment using energy. The document provides context on electricity supply in India and discusses prior research on energy conservation in thermal power plants. It also gives an overview of the Panipat Thermal Power Station and its units before framing the problem of auditing Unit 7 to evaluate the performance of the main unit and sub-units like
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Design, Development and Operation of 3.5HP Power Tillerpaperpublications3
Abstract: A power tiller is a mechanized agricultural implement popularly used to save time, human efforts and fuel in preparation of soil bed. In this paper presents the design and fabrication of maintenance free and efficient 3.5HP lightweight power tiller. However, under complex abrasive environment, tiller blades are subjected to extreme surface wear, particularly in dry sand which considerably affects its service life. Our aim of this paper is to improve service life of the tiller blade. Working of transmission system is based on chain sprocket mechanism to reduce cost. Different component of machine are modeled by using modeling software CATIA V5R21. The developed model is useful for agricultural industry especially developing countries.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
This document evaluates the adequacy of the time allotted for contractors to submit tenders for public building projects in Nigeria. It analyzes responses from 78 public clients and contractors on currently allowed tendering durations versus what is considered adequate. Results show 75% of contractors feel the time allowed is sufficient, while 84% of clients agree. However, statistical analysis reveals no significant difference between the mean durations currently allowed (3.05 weeks) and what is adequate (3.15 weeks). The document recommends establishing construction regulations to standardize tendering durations based on project complexity. It also suggests efforts to timely approve budgets to reduce pressure on procuring entities.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Productivity and Quality Improvement Through Setting Parameters in...IRJET Journal
This document discusses parameters that affect quality in hot rolling mills. It summarizes that:
1) Parameters like draft, spreading, roll speed, slip factor, and roll force can impact quality if not properly set initially.
2) Quality can also be affected by improper roll gap, excess temperature, roll force changes, roll deflection, internal stresses, billet dimensions, roll convexity, and non-homogeneous material flow.
3) Optimizing parameters like these can improve productivity by reducing defects and increasing output.
The energy audit was conducted at a metal fabrication and casting company in Nigeria to identify areas of energy waste and potential savings. Data was collected on the company's electricity consumption over the past year, equipment power ratings, and lighting load. Analysis found the average monthly electricity consumption was around 8,500 kWh, with usage varying monthly. Machines were found to operate at low average loads of 62% and low power factors of 0.674 lagging. Recommendations will be provided to reduce power consumption through equipment replacements or process changes that save energy with payback periods less than equipment lifespans.
IRJET- Design of Fixture for Wind Mill Door SegmentIRJET Journal
This document describes the design of a new fixture for manufacturing door segments for wind turbines. The new fixture was created to reduce production time for processes like segment cutting. It allows two plates to be cut simultaneously for certain wind turbine models. Analysis showed the new fixture could reduce total work time for door segment production from 285 minutes to 268 minutes by streamlining some steps. It is expected to increase production rate and reduce labor requirements compared to the existing fixture design.
2009 2013 deep research report on china wind power equipment industry chainqyresearch
This document provides a summary of a 946-page research report on China's wind power equipment industry chain from 2009 to 2013. It was published in September 2009 by QY Research Group and included detailed analysis of industry trends, key manufacturers, production and demand for wind turbines, blades, gearboxes, generators, bearings, and control systems. The summary highlights that China's wind power installed capacity grew rapidly during this period and that the government implemented new pricing policies and regional development goals to further stimulate industry growth.
India is a land of abundant resources but ill managed due to complex matrix of reasons. Though there is a wide gap between supply and demand, supply is restricted due to political reasons and non-realisation of bills. Units are forced to cycle with load following or shutdowns on account of non-availability of coal, transmission bottle necks and other reasons. The Plant Load Factor of India has been declining from 75.08% in 2010-11 to 69.95% in 2012-13.
Thsi papaer on “ Cycling-Bane for Power Utilities “was submitted for Power Plant Efficiency and Reliability conference ( 2nd to 4th april’14). , Koulalampur, Malaysia by Eventful Power.
This paper discusses various reasons for cycling in India with emphasis on coal and transmission bottle necks. It also covers effects and damages inflicted by cycling in power plant equipment.
Please share your feedback on "pothalakrao@gmail.com"
Development And Testing Of Parabolic Through Collectors For Domestic Applicat...IRJET Journal
- The document describes the development and testing of a parabolic trough collector for domestic water heating applications.
- An experimental setup was created using grade 204 stainless steel for the reflector and copper tubing for the absorber. Testing showed a slight increase in water outlet temperature compared to a simple parabolic trough collector design.
- The results demonstrate the potential of this low-cost design for solar water heating in homes, with applications also including water desalination and increasing steam power generation.
This document describes the fabrication of a multipurpose dryer. It consists of a heating element, DC motor, blower, frame, battery, bearings, gears, and a heater control system. The blower blows hot air from the heating element to dry crops using the motor and gear system. The dryer can also be used as a room heater and is portable. It aims to provide a low-cost option for drying crops without using much energy.
IRJET- Comparative Performance Study of Mine Trucks by Overall Equipment Effe...IRJET Journal
This document discusses measuring the effectiveness of mining equipment using Overall Equipment Effectiveness (OEE). OEE is calculated based on availability, performance, and quality to identify sources of productivity loss. It presents a method to calculate OEE for trucks used in open pit mines based on time loss classifications like scheduled maintenance, breakdowns, setups, waiting times, reduced speeds, and quality defects. Calculating OEE using a calendar time-based approach rather than loading time provides a more accurate assessment of actual equipment utilization. Regular OEE measurement can help mining operations improve productivity by reducing downtime and other inefficiencies.
Portable Small-Scale Vertical Axis Wind Turbine with Pitch Angle Control Syst...IRJET Journal
This document describes the design and computational fluid dynamics (CFD) simulation of a portable small-scale vertical axis wind turbine with variable pitch angle control. The turbine uses a novel four-bar linkage mechanism to vary the pitch angle of each blade independently using servos. This is intended to improve energy absorption and output power by varying the lift force on the blades. The design aims to make the turbine portable for use in remote locations. CFD simulations using Ansys Fluent were conducted to analyze turbine performance at different pitch angles and tip speed ratios. The results will help optimize the pitch angle control system to maximize power output.
Comparing the thermal power plant performance at variou 2IAEME Publication
This document discusses an energy audit that was conducted at the Panipat Thermal Power Station (PTPS) in India to analyze the performance of Unit 7, which has a maximum capacity of 250MW. It provides background on PTPS, including its overall generation from 2000-2010. The audit analyzed the total system to identify improvement areas from an energy cost or quantity perspective. It involved detailed data collection and analysis of equipment like the boiler, turbine, generator and condenser. The goal was to determine efficiency and conservation potential to help address India's growing energy demand and environmental issues.
Comparing the thermal power plant performance at variou 2IAEME Publication
This document discusses an energy audit that was conducted at the Panipat Thermal Power Station in India to analyze the performance of Unit 7, which has a maximum capacity of 250MW. It begins with background on energy audits and their importance in improving energy efficiency. It then describes the methodology used, which was a total system audit analyzing the entire energy system in detail. The audit evaluated the efficiency of all equipment using energy. The document provides context on electricity supply in India and discusses prior research on energy conservation in thermal power plants. It also gives an overview of the Panipat Thermal Power Station and its units before framing the problem of auditing Unit 7 to evaluate the performance of the main unit and sub-units like
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Design, Development and Operation of 3.5HP Power Tillerpaperpublications3
Abstract: A power tiller is a mechanized agricultural implement popularly used to save time, human efforts and fuel in preparation of soil bed. In this paper presents the design and fabrication of maintenance free and efficient 3.5HP lightweight power tiller. However, under complex abrasive environment, tiller blades are subjected to extreme surface wear, particularly in dry sand which considerably affects its service life. Our aim of this paper is to improve service life of the tiller blade. Working of transmission system is based on chain sprocket mechanism to reduce cost. Different component of machine are modeled by using modeling software CATIA V5R21. The developed model is useful for agricultural industry especially developing countries.
A
REPORT
ON
INDUSTRIAL SUMMER TRAINING (IST)
AT
TBEA ENERGY (INDIA) PVT LTD
INTRODUCTION 09
2 LAYOUT OF TBEA ENERGY PVT. LTD. 10
3 BASICS OF TRANSFORMER 11
4 INFORMATION FLOW DIAGRAM 12
5 INFORMATION OF STORE 13
6 EQUIPMENT’S AND TOOLS ARE USED IN
TBEA
17
7 CORE ASSEMBLY 18
8 TRANSFORMER WINDING 21
9 LEAD ASSEMBLY 26
10 FINAL ASSEMBLY 28
11 TESTING OF TRANSFORMER 29
12 PACKING PROCEDURE OF TRANSFORMER 30
13 DISPATCH 32
14 CONCLUSION 33
This document is a report on simulating hail impact and testing the resistance of building materials to hail. It describes methods for producing spherical ice samples in the lab to simulate hailstones, measuring the mechanical properties of the ice and impact forces. It then presents results of impact tests on various building materials like fiberglass panels, swimming pool covers, polycarbonate plates and solar panels to analyze their hail resistance. The report concludes with suggestions for future work.
Design Optimization for Vibration Level of Root Blower With No Load Conditiontheijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Theoretical work submitted to the Journal should be original in its motivation or modeling structure. Empirical analysis should be based on a theoretical framework and should be capable of replication. It is expected that all materials required for replication (including computer programs and data sets) should be available upon request to the authors.
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The International Journal of Engineering and Science (The IJES)
1. The International Journal Of Engineering And Science (IJES)
||Volume||2 ||Issue|| 11||Pages|| 01-04||2013||
ISSN(e): 2319 – 1813 ISSN(p): 2319 – 1805
Implication of Poor Energy Supply on the Productivity of
Nigerian Manufacturing Industry
By
UZORH AUSTIN C.
Mechanical Engineering Department
Federal University of Technoloy Owerri PMB 1526 Owerri, Imo State, Nigeria.
-----------------------------------------------ABSTRACT----------------------------------------------------------A comprehensive evaluation of the effectiveness and delay contribution due to power outages and fluctuations is
presented. The purpose of this study is to reveal the implications of poor energy supply on the effective
utilization of the input resources in a typical Nigerian Manufacturing Industry. Delta steel company .Delata
state Nigeria was used as a casestudy. Data on power outages were collected from the energy distribution unit,
steel melting shop and the rolling mill. Additionally, the total delays, standard or planned production and actual
production were determined from the records, from which the power delay contributions and effectiveness were
evaluated. Results from this study revealed that power delay contributed more than 6% and the monthly
effectiveness was more than unity throughout year 2010. Analysis of data collected for 2010 production period
showed that the energy distribution unit experienced 54 outages with a total duration of 11472 mins, while a
total of 44947 mins was lost in the steel melting shops due to power outages and under-voltage. More so, 25
billets worth 44tonnes were scrapped and 20811 mins were lost as a result of power failure and fluctuations.
The implications clearly showed that poor power supply lowers the productivity of the company.
KEYWORDS: Energy, Manufacturing, Productivity.
--------------------------------------------------------------------------------------------------------------------------------------Date of Submission: 11, March, 2013
Date of Acceptance: 10, November, 2013
---------------------------------------------------------------------------------------------------------------------------------------
I.
MANUFACTURING SECTOR AND ENERGY SECTOR
Every manufacturing industry requires energy to power their machines, computers, lighting and
establishment for various purposes. However, in Nigeria, power requirement of the manufacturing sector far
outweighs the available power being generated, transmitted and distributed by power holding company of
Nigeria (PHCN) to both manufacturing and non manufacturing sectors. This energy deficiency has resulted in
the emigration of some companies to other companies as exemplified by Mitchelin, which relocated their
production capacity to ghana , some industries lying moribund as experienced by most textile industries in
Nothern Nigeria and some industries resorting to diesel engines as prime movers of industrial alternators, which
supplied inadequate power and cannot run continously for many days. Also, the running cost of these diesel
engines are on the high sides , thereby increasing the cost of production and in many cases, lowers productivity.
FUNDAMENTAL CONCEPTS
Pertinent to this study is the understanding of the keywords: “Manufacturing” and “Productivity”.
MEANING OF MANUFACTURING
The word manufacturing is derived from the latin word manus and factus meaning hand and made
respectively. That is the literal meaning is “made by hand”. However, in the modern sense, manufacturing
means making of goods or articles from raw materials by hand and/or machinery by following a well defined
plan for each activity required.
DEFINITION OF PRODUCTIVITY
Productivity has become an everyday watch word that is crucial to the welfare of the industries as well
as the economic progress of the country. Productivity is the measure of how well the resources are brought
together in an organization and utilized for accomplishing a set of objectives (Telsang 2008).
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2. Implication Of Poor Energy…
Productivity is the ratio of outputs of goods or services from the conversion process to input consumed
in the generation of these outputs (Arthur, 1978). Productivity is a summary measure of the quantity and quality
of work performance with resource utilization considered (Schermerhorn, 1986) Productivity can be defined as
the optimum utilization of all the resoures of organization: Men, material, money and machinery, energy, space,
technology, etc (Sharma, 2006).
II.
MEASUREMENT OF PRODUCTIVITY
Productivity is the arithmetic ratio of amount produced (output) to the amount of resources(input).
Mathematically: Productivity= Output/Input Productivity refers to the efficiency of the production. (Telsang,
2008). The basic component of productivity measurement is a means of comprising output forecasts with actual
output at selected intervals. In general system theory, effectiveness is defined as the degree to which the actual
output of the system corresponds to its desired or planned outputs. Productivity is a function of effectiveness
and efficiency (www.authorsden.com).
Effectiveness= Actual Outputs/Desired Outputs
Productivity = Actual Production/ Standard Production
III.
DELTA STEEL COMPANY AS AN INTEGRATED STEEL PLANT
Delta Steel Company(DSC) is an integrated steel plant with iron making, steel making and rolling mill facilities.
These three important plant consume a lot of power during production and adversely lower the productivity of
the company when there is power fluctuations or failure. However, the steel melting shop and rolling mill were
functional during the period under study.
IV.
DATA COLLECTED AND PRESENTED PROCEDURE
Power outages in DSC were collected for one year (January-December 2010) from the energy
distribution unit. The record which show the specific date , timeout, timein, duration and feeders has been
summarized as shown in table 1. The delay due to power outages, insufficient power to run the furnaces and
preheat ladies, power fluctuation and power failure that resulted in the abortion of heats were determined from
one year record and percentage contribution of the power failure to total delay was determined and compared to
the productivity of the steel melting shop. See table 4.2. Moreso, delay due to power outages, cobbles due to
power outages, percentages contribution of power failure compared to the total delay was determined and
compared to the productivity of rolling mill (see table 4.3)
V.
POWER UTILIZATION IN THE STEEL MELTING SHOP
Melting in the plant is achieved with Electric Arc Furnaces (EAF), which cannot do without electric
Arc Furnaces (EAF), which cannot do without electricity. The melting point of steel is about 1539c, its
superheat temperature before tapping into the preheated ladle is 1700c and the casting temperature in the
continuous casting platform is 1600c. when there is power failure and the temperatture of the liquid steel is
below 1600c, the usual option is to abort the heat by quickly tapping into the ladies and pouring the liquid steel
on the ground floor before it solidifies. More so, when the Power failure is experienced at a temperature of about
1200c, the metal is left in the furnace, while heating and melting continue when the power is re-instated.
VI.
POWER UTILIZATION IN THE STEEL ROLLING MILL
Both power fluctuation and failures are very dangerous and highly undesirable in the rolling mill. This
is as a result of the formation of cobble which can occur when a billet undergoing deformation derails due to the
stoppage or malfunctioning of the mall stands, shears, approach or roller table and loppers along the mill train.
Power fluctuation or failure causes cobble formation in this mill, thereby grounding the rolling operation. Also,
the temperature 1200c of the heated billets drops when there is power failure. When cobble forms, the mill is
shut down, and cobble removal crew cut and remove the cobble, while the maintenance/production crew reinstates the plant before production continues.
VII.
RESULTS AND IMPLICATIONS
The results from the data collected are summarized in tables 4.1, 4.2 and 4.3, while the implications of
poor power supply are revealed in the tables 4.2 and 4. 3 and presented as shown below:
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3. Implication Of Poor Energy…
VIII.
IMPLICATIONS OF POOR POWER SUPPLY IN THE STEEL MELTING SHOP
The implication of poor fluctuation and failure are listed as follows:
[1]
Loss of consumables and ferroalloys are used in the treatment of aborted heat.
[2]
Loss of money accruable from 110 tons (furnace capacity) of steel had it been successfully casted.
[3]
Devaluation of already treated steel to scrap.
[4]
Increased expenditure on the cutting of the aborted steel to sizeable form for easy loading into the EAF.
[5]
Consumption of more energy in re-melting or continued melting because of temperature drop.
[6]
Loss of money paid to PHCN for power expended on return or aborted heat.
[7]
Increased idle times of workers because the entire plant get heated up and polluted when there is heat
abortion.
[8]
Loss of man hours especially when heat is aborted.
[9]
Inability to make the planned or standard production
[10]
Productivity ratio or effectiveness is always less than one with respect to the production quantity.
IMPLICATIONS OF POOR POWER SUPPLY IN THE STEEL ROLLING MILL
The Implications of power fluctuations and outages in the steel mill includes:
[1]
Devaluation of the billet to scrap
[2]
Loss of a would be income if the billet was successfully rolled
[3]
Extra expense on the oxygen and acetylene used in cutting the cobbles
[4]
Maintenance and repair of damage damage parts due to cobble
[5]
Expenditure on the treatment of injured perssonnel or compensation on the family when a worker is
entangled by cobble (death situation)
[6]
Increased downtime
[7]
Increased idle time of some workers
[8]
Increased energy consumption when the furnace temperature drops
[9]
Loss of man-hour and expenditure on power when cobble forms
[10]
Productivity is always less than unity because actual production was always less than the planned
production.
[11]
Loss of machine hours as some machines take up to thirty minutes before assuming normal operating
condition.
COMMENT ON THE RESULT
Table 4.1: The cause of the outages includes system collapse, system disturbance, high frequency, under
voltage, over-voltage and poor generation. The number of power failure times was found to be 54 and the
outage duration totaling 11472mins in 2010.
GIW – Ughelli Supply, S4W – Sapele Supply
Table 4.2: A total of 44937min delay due to power outages and inadequacy was recorded in 2010 and the steel
melting shop which contributed 7. 37% to the total delay and resulted in the abortion or return of heat worth
1107tonnes of liquid steel. No monthly target was achieved throughout 2010, as revealed by the effectiveness.
EAF II and EAF IV delays due to power are presented in second column.
Table 4. 3: when the effectiveness is 0.82, the power delay contribution is 2.90% , while the effectiveness of
0.50 resulted when the power delay contribution is 17. 32%. These clearly show that power delay affect the
productivity adversely. Also, the total number of billets devalued throughout 2010 was 25. Total delay due to
power failure was calculated to be 20811mins with a contribution of 6.27% to the total delay. The effectiveness
from January to December, 2010, was found to be less than unity.
IX.
CONCLUSION
Obviously, poor energy supply lowers the productivity of manufacturing industries in Nigeria as shown
by the two functional plants in Delta Steel Company. This is due to its associated unwanted events such as
increased idle time, delivery time delay, Increased cycle time, reduced machine output, increased expenditure on
material recovery and recycle, increased maintenance and repair expences , semi finished product devaluation,
compensation to injured personnel or family of dead personnel, downtime, loss of consumables, alloys and
extra expenses on raw materials or semi-finished product protection. All these implications arise due to power
fluctuation and outages and in some cases the use of diesel engines as an alternative source of power supply.
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4. Implication Of Poor Energy…
Table 4.1: Power Outages for 2010. Source: Energy Distriburtion Unit
August
GIW
2201
325
Month
Feeders
Distribuion
February
March
April
May
June
July
GIW, S4W
GIW, S4W
GIW
GIW
GIW
GIW
790
1319
68
520
238
642
Number
failures
4
5
4
6
3
10
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of
power
Page 4