Electrical Engineer CDR PDF

 

CAREER EPISODE – 1 :

 a) Introduction:  

As a student of Master of Technology from Griffith University, I successfully achieved the expected credit score by the assessor for meeting the professional standards of the course. In my study curriculum, I worked on the ‘Proposal for an alternative power source in Queensland Micro and Nano-Technology Centre’. Though it was my solo work.

CE1.1

 Duration: month 20xx to June 2017

Location: Australia

Name of the organization: Griffith University

Position Title: Academic Engineer

 b) Background:

 CE1.2 Electrical power is a transfer of energy between two points and when it transferred over extended distances, different components like transmission and distributions involved. Heat from transmission and material used for energy transfer do not impact customer premises, but dips and fluctuation in the supply can halt customer operation, which in turn can damage equipment, quality compromise, productivity loss as well as low customer satisfaction. I noticed that Queensland Micro and Nanotechnology Centre (QMNC) are also affected by power and voltage fluctuations. 

CE1.3 Considering this need of the hour, I proposed this research work based on some critical concepts in the transmission of electric power. However, it was equally significant to understand the concept of power fluctuation and effects of it on the electrical system. Whenever there is any fault in the power system, the RMS voltage magnitude decreased for a very short period, which can lead to shutting down of the process in some cases. Hence, I assumed some key hypothesis to begin this technical project.

CE1.4 The aim of this research was providing answers to the question given below:

  • Analysis of power fluctuation in QMNC (N74) building.
  • Explore major causes and provide possible solutions for power fluctuation/dips in the power transmission.
  • Investigation of principles of implementing Solar System applications for building.
  • Execution of financial analysis of the project.
  • Systematic future project planning for proposed technical solution.

CE1.5 It was my individual work and took guidance from my Project Guide. I also took technical assistance from lab technician present in the project location.

 

CE1.6 Below listed were the prime activities I did in the research:

  • Wrote down the literature review providing a theoretical background of the voltage dips their types and impact on the power system.
  • Explained detailed theory and implementation of storage system besides two different possible solutions for power and voltage fluctuations.
  • Provided overview of both the solutions by experimenting and considering technical complications related with the power fluctuations.
  • Designed a new solar system to store energy and to perform a backup operation.
  • Carried out mathematical calculations regarding system cost with the results and financial analysis information.
  • Provided information about future project planning of using the devised system practically.

 

Personal Engineering Activity

CE1.7 As per the prerequisites of the experiment, I selected Queensland Micro and Nanotechnology Centre (QMNC) for the project. It was established in 2009 focuses its research in the development of silicon carbon wafer technology. I visited the site to discover additional technical facts. Simultaneously, I began with the study of journals and other study material related with the power fluctuation and power dip. I kept concurrency of all the work activities by referring to the project timeline chart prepared in the beginning only.

CE1.8 During this examination, I could make out that in QMNC building main problems were with current and voltage. I could deduce these by reviewing the online monitoring system graphs. These problems led to power fluctuation and power factor variation in the system. So, to understand the impact of voltage dips, I needed to work on the classification of voltage drops. It was because that it would further lead to investigate the effects of those causes on the system and then looking for a possible solution.

CE1.9 I noticed that QMNC building operated different types of equipment like process controller, programmable logic controller; adjustable speed drives as well as robotics. Faults could be the result of a problem in a plant or on the utility grid. It was tough to understand the impact of voltage sags on the equipment as different types of equipment from various brands had a significant different sensitivity to sags. I tried to understand different methods of resolving the issues.

CE1.10 As discussed in the literature review the voltage dips and fluctuation have severe impact on electrical system and there are numerous methods to solve this problem. I noticed that the most effective way was to install battery storage system, which further requires alternative power source to charge battery system. Among number of different energy sources available in the market, renewable energy has proved to be the best possible solution as an alternative power source. Out of different types of renewable energy sources, solar power was most cost effective and environmental friendly power source available for QMNC building.

CE1.11 Before designing the solar PV system for QMNC building, I measured the value of estimated calculation about system size and cost. I found that the solar system size was larger than space available on the building roof. Apart from that was calculated that the battery storage system needed to be large and expensive. After these results, I implemented the new approach where first power fluctuations were reduced by analyzing PI Core sight, which resulted in reduction in overall power consumption in the building. This helped in designing new system with small area required for PV system and small battery system.

CE1.12 I measured the value of power dips in the N74 building by using online software called PI CORESIGHT. I used this software tool to track all voltage and power activity of the university. I worked on the energy and power consumption of the building with issues of power fluctuations and power dips. I documented a project report by validating the selection of the equipment for my project guide. This report consisted of technical information of the proposed project with technical specification of the all the equipments selected in the project. I also highlighted some critical parameters of the project.

CE1.13 I obtained building load profile data before working on mathematical calculations. I found that power fluctuations were reduced by installing new control and solar PV system. I designed this new solar system by using Homer Pro software. In this part, I made use of my mathematical skills to calculate building load profile, solar PV system, battery system as well as electricity cost of the building. I took reference from different books and journals having details on the topic. I also used internet to get the things that were missing in the books.

CE1.14 A series of experiments stated that PID controller improved the overall system power consumption. Power consumption before controller was more than 160kW, but after installing PID controller, power maintained between 90-120kW.whcih would help in designing solar PV system for the building. I firstly reduced power fluctuation by 80kW and then designed a new system for QMNC building. I found than after power variation reduction, approximately 7000000kWh energy were saved per year and the solar system size was reduced to 100Kw from 180Kw. The PV system reduction resulted in less cost and area required for system was reduced as well.

CE1.15 I made many graphs in the analysis section of the work to support my arguments. These graphs were made in MS-Excel. After planning and designing of the solar system, Professor Junwei Lu and Engineer Anthony Christian suggested a future land for the project. So, based on their suggestion; I divided the project into 2 phases as shown below: 

 

CE1.16 I carried out further technical qualification of the proposed equipment in the project by executing calculations. As part of the curriculum I was required to give regular presentations and seminars to my guide and in class room. And I have appeared for the viva in fulfillment of the course objective.  I prepared graphical results obtained after the simulation and placed them in the project report.

 

Summary

CE1.17 This task was another idea for which I got effective. At first, the work set forth a few difficulties, yet I successfully figured out how to face them all. I learnt about numerous new advances and ideas by chipping away at this research. I finished the proposed aims of the research in the given time. I finished all my subtasks by giving key answers for all the significant issues. In every one of my errands, I ended up being concerned and inventive in my designing works and furthermore in my venture administration works. I tackled different issues by applying novel technical principles.

 

CAREER EPISODE – 2 : Electrical Engineer CDR PDF

 

  1. a) Introduction:

 

As a student of Master of Technology from Griffith University, I successfully achieved the expected credit score by the assessor for meeting the professional standards of the course.  Based on the same lines of expectations, I completed another technical group project on ‘Renewable Energy Systems’. There were three teammates with me in this group project. There was constant support and guidance by project supervisors.

CE2.1

 

Duration: month 20xx to June 2017

Location: Australia

Name of the organization: Griffith University

Position Title: Academic Engineer

 

  1. b) Background:

 

CE2.2 Sun is the great source of energy for the mankind if explored keenly. It is the most potential and valuable source of energy which can be used to meet the energy demands in different ways. So in this regard I tried to examine and analyze the use of solar PV grid connected power plant. Renewable sources of energy are in great demand these days because these cause no carbon emission, can run for long durations and are used for clean power generation.

CE2.3 Solar PV grid power plant can be installed for electricity generation. It supplies usable power by means of photo voltaic units. It comprises of inverter, converters which convert solar energy into electricity. It when connected to power plant can lead to more electricity production using renewable energy like solar energy. I did the study which was designed to examine and analyze the annual production of electricity, cost and financial analysis of a projected solar PV Grid connected power plant. This study was done in order to take an effective step to promote the use of solar energy and explore the solar potential to meet the ever growing demands of electricity.

 

CE2.4 The aim of this research was providing answers to the question given below:

  • Explore alternative potential source of energy to meet the demands of today’s world.
  • Generate clean power i.e. no byproducts.
  • No carbon emission.
  • Less expenditure and long life of the system designed.
  • Investigation of principles of implementing Solar System applications for building.
  • Execution of financial analysis of the project.
  • Systematic future project planning for proposed technical solution.

 

CE2.5 It was my individual work and took guidance from my Project Guide. I also took technical assistance from lab technician present in the project location.

 

CE2.6 Below listed were the prime activities I did in the research:

  • Responsible for the entire designing and installation of the project.
  • Surveyed the internet and collected all the relevant data useful for my work plan.
  • Visited many sites equipped with similar power generation system.
  • Learned the RET screen (Renewable Energy Technology) software to carry out the designing and analysis tasks.
  • Involved in regular meetings with the guide and informed him about my work on daily basis.
  • Collected all the weather data from the nearest weather station.
  • Completed the designing and analysis work under the guidance of my project guide and the kind support of my team members.
  • Executed all the data interpretation and tabulated the results observed.
  • Carried out many methods to reduce miscellaneous losses while power generation.
  • Carried out mathematical calculations regarding system cost with the results and financial analysis information.
  • Provided information about future project planning of using the devised system practically.

 

Personal Engineering Activity

CE2.7 I began with the study of journals and other study material related with the power fluctuation and power dip. I kept concurrency of all the work activities by referring to the project timeline chart prepared in the beginning only.  After series of surveys and studies I designed my model of Solar PV grid. In this solar energy is used to produce the electricity, which is further transmitted to the grid channels. Inverters are used to convert DC into AC which was then used for domestic lines. I designed the energy model keeping in mind four vital parameters like model, orientation, module type and the number of modules.

CE2.8 For my comprehensive analysis, I opted for the method II available in RET screen. Initially I looked for the site which was perfect for my proposed design. I fixed the solar tracking mode and adjusted the slope and the collector. I mounted the collector facing the equator which was the preferred orientation. All this required optimum power capacity. I arranged the photo voltaic cell modules having appreciable efficiency and temperature coefficient. I estimated the total area of solar collector using RET screen model. I used high efficiency inverters for my project and tried to minimize miscellaneous losses which were generally high during adverse weather conditions.

CE2.9 I worked on the energy and power consumption with issues of power fluctuations and power dips. I documented a project report by validating the selection of the equipment for my project guide. This report consisted of technical information of the proposed project with technical specification of the all the equipments selected in the project. I also highlighted some critical parameters of the project. I worked on financial viability of the system with the help of series of mathematical equations and computations.

CE2.10 I made use of my mathematical skills to complete required analysis segment in the project. I took reference from different books and journals having details on the topic. I also used internet to get the things that were missing in the books. I performed the cost analysis, the financial analysis and the emission analysis of my design. Power system formed the base and the most important portion of cost analysis in solar photo voltaic system as it shared 90% of total cost. I used method I for the pre feasibly analysis.

CE2.11 I also did the emission analysis in which I compared the results of electricity generated using other fuel mix and the results of my design. The electricity generation capacity of my design was remarkably high. I also proved that it had less GHG emission value and fewer miscellaneous losses. I did the financial analysis to determine all the expenses and correlate it with the life of the equipment installed and calculate the viability as well as the depreciation. I also identified all the pay back sources.

CE2.12 I made many graphs in the analysis section of the work to support my arguments. After all the results and analysis, the project showed good efficiency but also had huge investment which could only be decreased if more methods and variations are tried in this regard. Efforts should be laid down to increase the payback period. I also stated that if levied taxes were reduced on renewable source power plants, this method was a better way to promote and explore the renewable source of energy to generate the electricity.

CE2.13 I could make out from all the above analyses that it was not financially very much viable cause of 17.6 years of payback time as the total life time for project was 25 years. I concluded that without tax payback time period if 13 years so, if government made renewable energy projects become tax free rather than giving any incentives, it can be a better way to promote the use of electricity generated by renewable sources. I have appeared for the viva in fulfillment of the course objective.  I prepared graphical results obtained after the simulation and placed them in the project report.

 

Summary

CE2.14 This task was another idea for which I got effective. My experience of learning in this practical was quite good. I got the opportunity to master myself in technical precisions on pilot scale. It was a new way of learning in my career. I am quite satisfied with the findings of my work. I am very happy that I tried my level best to make my project successful. I was able to gain theoretical and analytical knowledge about my concept. After the successful completion of my project within the time specified, I feel more competent and competitive. My confidence level is on new heights and I am ready to take up novel challenges if such opportunities come to me. I am more confident now and ready to take up new challenges. My overall experience for the entire framework was very overwhelming.

 

CAREER EPISODE – 3 : Electrical Engineer CDR PDF

 

  1. a) Introduction:

 

As a student of Master of Technology from Griffith University, I successfully achieved the expected credit score by the assessor for meeting the professional standards of the course.  Professors were satisfied with my technical progress and a new project on home energy audit was assigned to me. Based on the same lines of expectations, I completed the work on ‘R3315ENG /7519ENG –Energy Audit Report’. There was constant support and guidance by project supervisors.

CE3.1

 

Duration: month 20xx to June 2017

Location: Australia

Name of the organization: Griffith University

Position Title: Academic Engineer

 

  1. b) Background:

 

CE3.2 Till the time I had already worked on a few small technical tasks related with energy audit. So, I was asked to develop a new project report on home energy audit by covering the energy consumption of a house located in st Andrew st, Kuraby, Brisbane. In the energy audit, I considered lighting system and detailed power consumption of all electrical appliances. With the help of these measurements, I could easily monitor the energy consumption and furthermore proposed methods to reduce the overall cost of energy by reducing excessive energy usage.

CE3.3 I did the study which was designed to examine and analyze the annual production of electricity, cost and financial analysis of electricity consumption. This study was done in order to take an effective step to reduce the amount of electricity bills and to meet the ever growing demands of electricity. As the home was currently on rent and from three rooms I had only access to one as its mine. In other two rooms, some other guys were residing so I did not have access to those room that’s why it was not possible for me to audit every point in the home.

 

CE3.4 The aim of this research was providing answers to the question given below:

  • Estimate the amount of electrical energy consumption by all the appliances used in home.
  • Evaluate the power consumption in different areas separately.
  • Carry out energy bill analysis.
  • Proposal of best-suited energy management opportunities.
  • Execution of financial analysis of the project.

 

CE3.5 It was my individual work and took guidance from my Project Guide. I also took technical assistance from lab technician present in the project location.

  

CE3.6 Below listed were the prime activities I did in the research:

  • Visited one room and assumed energy consumption of all the home appliances.
  • Audited personal energy consumption and carried out a number of mathematical calculations for final results.
  • Collected all the weather data from the nearest weather station.
  • Executed all the data interpretation and tabulated the results observed.
  • Proposed a series of methods to reduce miscellaneous losses while power generation.
  • Provided information about future project planning of using the devised system practically.

 

Personal Engineering Activity

CE3.7 For energy audit, there can be various numbers of different steps, for full energy consumption detail. As I was living in rented home so, I audited my personal energy consumption and made some assumption for other rooms to evaluate the overall energy usage of my home. As the first step, I thoroughly studied the design and structure of the home by looking at its map. I completed the study under the guidance of my project supervisor as there were some assumptions too.

CE3.8 In the preliminary analysis, I could make out that the energy consumption of the home was very low as all were students living in the home. So, most of time they were not in the home and maximum power consumption in the home was during night time. I also noticed that there were some high power consumption devices which ran for very short period of time whereas some low power consumption devices which ran for long period of time.

CE3.9 I examined heating and cooling mechanism of the house as per the construction mechanism in Australia. There were coolers for the cooling of the personal rooms and heaters in case of cold. In all round home, lights used were CFL which consumed very less power as compared to other lights. I used LUX meter to measure the energy consumption by all lights and took other information about lighting system from manufacturer manual. I documented a project report by validating the selection of the equipment for my project guide.

CE3.10 This report consisted of technical information of the proposed project with technical specification of the all the equipments selected in the project. I observed that refrigerator was used for whole time, whether it was winter or summer. Fridge was always in working mode with energy consumption of 111.0 kWh for 90 days and it valued to $33.31 for given period of time. Some other appliances used in the house were microwave, laptop, mobile charger, and washing machine. I worked on financial viability of the appliances with the help of series of mathematical equations and computations.

CE3.11 I made use of my mathematical skills to complete required analysis segment in the project. I took reference from different books and journals having details on the topic. I also used internet to get the things that were missing in the books. For the energy measurement, I used lux meter and power meter and from those meters I noted down different values. On the basis of those values, I estimated overall energy consumption.

CE3.12 I performed the cost analysis, the financial analysis and completed some tables consisting of resulting data values. The tables were:

  • Lighting in the bedroom and energy consumption of light bulbs.
  • Lighting energy consumption in common areas.
  • Natural light in the bedroom.
  • Natural light in common areas.
  • Power consumption in bedroom.
  • Power measurement in common areas

CE3.13 I identified weather and time condition of measurement as per Australian Weather Calendar. I considered energy bill for three month of time for the evaluation of this energy audit from that energy bill I noted that the cost of energy was approximately 1 kWh is $ 0.30. So, for the measurement of energy value, I would use this energy cost. I proposed some ways of making some reduction in the final billing of power consumption.

 CE3.14 Those methods were:

  • Change CFL lights by LED lights
  • Using solar water heating system
  • Installation of movement sensor so that if when nobody was in home, it automatically switched off the appliance.
  • Replacement of windows and door for more efficient insulation

 I have appeared for the viva in fulfillment of the course objective.  

Summary

CE2.15 This task was another idea for which I got effective. My experience of learning in this practical was quite good. According to this energy audit it was clear that the energy consumption of the home was very low because all appliances were not in use and most of the time nobody was in home. I got the opportunity to master myself in technical precisions on pilot scale. It was a new way of learning in my career. I am quite satisfied with the findings of my work. I am very happy that I tried my level best to make my project successful. I was able to gain theoretical and analytical knowledge about my concept.

electrical engineer cdr pdf

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