HVAC Manual Thermal load Calculations
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Maintenance Engineering
Introduction
• The same holds true for industrial equipment/system.
• Maintenance is one of the most indispensable job in any industrial organization.
Maintenance Engineering
Introduction
• The same holds true for industrial equipment/system.
• Maintenance is one of the most indispensable job in any industrial organization.
Process Design Engineering
PROCESS ENGINEERING AND THE ROLE OF PROCESS ENGINEER
Process design is the design of processes for desired physical and or chemical transformation of materials. Process design is central to chemical engineering and it can be considered to be the summit of chemical engineering, bringing together all of the components of that field. Process Engineering involves the design of unit operations & equipment design.
Role of Process Engineer: Chemical engineers (or process engineers) are responsible for developing new industrial processes and designing new process plants and equipment or modifying existing ones. The processes that they come up with are used to create products ranging from oil and gas, chemicals, petrochemicals, and specialty chemicals to food and drink. It is a vocation wherein the process engineer is supposed to perform any one or all of the activities mentioned below to provide documentation for a safe, reliable, and profitable design
Design new equipment/unit/plant as per good and internationally accepted engineering practices (Greenfield)
Rate or checks the adequacy of existing equipment/unit/plant for changed operating conditions (e.g. pressure, temperature, flow, etc.) as per good and internationally accepted engineering practices (Brownfield)
Process Design Engineering
PROCESS ENGINEERING AND THE ROLE OF PROCESS ENGINEER
Process design is the design of processes for desired physical and or chemical transformation of materials. Process design is central to chemical engineering and it can be considered to be the summit of chemical engineering, bringing together all of the components of that field. Process Engineering involves the design of unit operations & equipment design.
Role of Process Engineer: Chemical engineers (or process engineers) are responsible for developing new industrial processes and designing new process plants and equipment or modifying existing ones. The processes that they come up with are used to create products ranging from oil and gas, chemicals, petrochemicals, and specialty chemicals to food and drink. It is a vocation wherein the process engineer is supposed to perform any one or all of the activities mentioned below to provide documentation for a safe, reliable, and profitable design
Design new equipment/unit/plant as per good and internationally accepted engineering practices (Greenfield)
Rate or checks the adequacy of existing equipment/unit/plant for changed operating conditions (e.g. pressure, temperature, flow, etc.) as per good and internationally accepted engineering practices (Brownfield)
Engineering Design of a Disposable Water Bottle for an Australian Market
Abstract:
The primary purpose of this project is to investigate the engineering design process and use it to design a disposable water bottle for mass production that is aesthetically pleasing, structurally sound, market appropriate and financially viable. It is the intention that the water bottle, complete with branding, will go on sale in the Australian market. In the past decade bottled water has grown to become a major seller in the Australian beverage market. With many resources spent on the marketing and sales of a disposable water bottle, this project endeavor's to design a bottle tailored to its target demographic from the ground up. Largely in depth survey research from select focus groups within a target demographic will assure the accuracy of the specifications and the direct relevance to the intended consumer. An engineering design approach ensures that the bottle will not only be rigorously designed to heavily researched specifications but also computationally tested to guarantee the success of the completed product.
Engineering Design of a Disposable Water Bottle for an Australian Market
Abstract:
The primary purpose of this project is to investigate the engineering design process and use it to design a disposable water bottle for mass production that is aesthetically pleasing, structurally sound, market appropriate and financially viable. It is the intention that the water bottle, complete with branding, will go on sale in the Australian market. In the past decade bottled water has grown to become a major seller in the Australian beverage market. With many resources spent on the marketing and sales of a disposable water bottle, this project endeavor's to design a bottle tailored to its target demographic from the ground up. Largely in depth survey research from select focus groups within a target demographic will assure the accuracy of the specifications and the direct relevance to the intended consumer. An engineering design approach ensures that the bottle will not only be rigorously designed to heavily researched specifications but also computationally tested to guarantee the success of the completed product.
Development Of An Engineered Wetland System For Sustainable Landfill Leachate Treatment
ABSTRACT
Sustainable and effective treatment of landfill leachate has become one of the most important environmental problems due to the fluctuating composition and quantity, as well as its high concentrations of pollutants. High-tech solutions applied for the leachate treatment are expensive and energy consuming, and in addition they are not suitable at many landfill sites, especially those in rural areas. Hence there is need to develop novel and sustainable low-energy systems for the effective treatment of landfill leachates. Constructed wetlands (CWs) are inexpensive simple to operate and they have the potential to remove not only organic carbon and nitrogen compounds, but heavy metals. This study focussed on the design, development and experimental investigation of a novel CWs for the treatment of landfill leachate. The CWs employed dewatered ferric waterworks sludge (DFWS) as the main substrate. The overall aim of the study was to design and assess the novel configuration of the CWs, whilst also contributing to advancing the understanding of pollutant removal from the landfill leachate in the CWs, through the development of models to explain the internal processes and predict performance. The key design and operational variables investigated were: the primary media used, i.e. the DFWS, and the wetting and drying regimes. The CWs was configured as 4- stages in series which was operated for 220 days. Thereafter, an additional unit was added due to clogging and the CWs was operated for 185 days in this second period. Results and experimental observations indicate that the chemical treatment processes (adsorption and precipitation) contributed to the clogging. The DFWS used served as adsorbent for heavy metals removal in the system. Results of heavy metals, organic matter (COD), ammonia and total nitrogen removal indicate average removals of 99%, 62%, 83% and 81%, respectively in first period; and 100%, 86%, 90% and 82% in second period, with an average heavy metals loading rate 0.76 g m-2 day-1 , organic loading rate 1070 g m-2 day-1 , ammonia loading rate of 178 g m-2 day-1 and total nitrogen loading rate 192 g m-2 day-1 . Results were supported through mathematical analysis using STELLA model for heavy metals transformation in CWs and numerical modelling using HYDRUS CW2D, which enhanced understanding of the internal processes for organic matter and nitrogen 3removal. The result from STELLA modelling showed that up to 90% of the removal of heavy metals was through adsorption, which is highly significant. While HYDRUS CW2D results showed that the main path of nitrogen removal was through simultaneous nitrification and denitrification. Overall, results have shown that CWs design has great potential for reduction of metals and nutrients in landfill leachate. Results of this study can contribute to future CW research and design for landfill leachate treatment, through the increased understanding of long-term pollutant removal in these systems. In time, this may result in the wider application of CWs for landfill leachate treatment to better protect the environment.
Development Of An Engineered Wetland System For Sustainable Landfill Leachate Treatment
ABSTRACT
Sustainable and effective treatment of landfill leachate has become one of the most important environmental problems due to the fluctuating composition and quantity, as well as its high concentrations of pollutants. High-tech solutions applied for the leachate treatment are expensive and energy consuming, and in addition they are not suitable at many landfill sites, especially those in rural areas. Hence there is need to develop novel and sustainable low-energy systems for the effective treatment of landfill leachates. Constructed wetlands (CWs) are inexpensive simple to operate and they have the potential to remove not only organic carbon and nitrogen compounds, but heavy metals. This study focussed on the design, development and experimental investigation of a novel CWs for the treatment of landfill leachate. The CWs employed dewatered ferric waterworks sludge (DFWS) as the main substrate. The overall aim of the study was to design and assess the novel configuration of the CWs, whilst also contributing to advancing the understanding of pollutant removal from the landfill leachate in the CWs, through the development of models to explain the internal processes and predict performance. The key design and operational variables investigated were: the primary media used, i.e. the DFWS, and the wetting and drying regimes. The CWs was configured as 4- stages in series which was operated for 220 days. Thereafter, an additional unit was added due to clogging and the CWs was operated for 185 days in this second period. Results and experimental observations indicate that the chemical treatment processes (adsorption and precipitation) contributed to the clogging. The DFWS used served as adsorbent for heavy metals removal in the system. Results of heavy metals, organic matter (COD), ammonia and total nitrogen removal indicate average removals of 99%, 62%, 83% and 81%, respectively in first period; and 100%, 86%, 90% and 82% in second period, with an average heavy metals loading rate 0.76 g m-2 day-1 , organic loading rate 1070 g m-2 day-1 , ammonia loading rate of 178 g m-2 day-1 and total nitrogen loading rate 192 g m-2 day-1 . Results were supported through mathematical analysis using STELLA model for heavy metals transformation in CWs and numerical modelling using HYDRUS CW2D, which enhanced understanding of the internal processes for organic matter and nitrogen 3removal. The result from STELLA modelling showed that up to 90% of the removal of heavy metals was through adsorption, which is highly significant. While HYDRUS CW2D results showed that the main path of nitrogen removal was through simultaneous nitrification and denitrification. Overall, results have shown that CWs design has great potential for reduction of metals and nutrients in landfill leachate. Results of this study can contribute to future CW research and design for landfill leachate treatment, through the increased understanding of long-term pollutant removal in these systems. In time, this may result in the wider application of CWs for landfill leachate treatment to better protect the environment.
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