Process Simulation and Parametric Analysis of Gas Fractionation Unit

2014 ◽  
Vol 989-994 ◽  
pp. 3493-3496
Author(s):  
Qing Rui Li ◽  
Ping Li ◽  
Peng Zhang

Considering the problem of the energy consumption in the gas fractionation unit, PROII process simulation software is used to calculate the gas fractionation unit and to analyze the effect of process parameters. On the premise of ensuring product quality, these parameters can reduce energy consumption, improve economic benefit.

2014 ◽  
Vol 1 (4) ◽  
pp. 256-265 ◽  
Author(s):  
Hong Seok Park ◽  
Trung Thanh Nguyen

Abstract Energy efficiency is an essential consideration in sustainable manufacturing. This study presents the car fender-based injection molding process optimization that aims to resolve the trade-off between energy consumption and product quality at the same time in which process parameters are optimized variables. The process is specially optimized by applying response surface methodology and using nondominated sorting genetic algorithm II (NSGA II) in order to resolve multi-object optimization problems. To reduce computational cost and time in the problem-solving procedure, the combination of CAE-integration tools is employed. Based on the Pareto diagram, an appropriate solution is derived out to obtain optimal parameters. The optimization results show that the proposed approach can help effectively engineers in identifying optimal process parameters and achieving competitive advantages of energy consumption and product quality. In addition, the engineering analysis that can be employed to conduct holistic optimization of the injection molding process in order to increase energy efficiency and product quality was also mentioned in this paper.


2017 ◽  
Vol 873 ◽  
pp. 71-79
Author(s):  
Xun Hua Yuan ◽  
Qi Fu Zhang

Chinese general hot dip galvanizing industry has made great progress in recent years, with an annual output of more than 13 million tons. In China, general hot dip galvanized products were widely applied in many fields such as power facilities, construction, transportation, etc. Through the introduction of a series of advanced technologies including cleaner production technology, the general galvanizing industry was more environmental friendly and sustainable. In the future, Chinese general hot dip galvanizing industry will continue to pay attention to technological developments so as to improve product quality, reduce energy consumption and pollution.


2021 ◽  
Author(s):  
Sara Damyar

Building envelope retrofits is one of the options available to reduce energy consumption of postwar MURBs in Toronto. This study evaluates the impact of building envelope retrofits that meet current standards on energy consumption of a Toronto postwar MURB; utilizing eQUEST energy simulation software. Further upgrades also take place to evaluate how the impact of building envelope retrofits on energy use can be increased and optimized for all assemblies of building envelope and airtightness. Moreover, the retrofit strategies are ranked based on cost and energy-saving effectiveness. The results of the analysis reveal that building envelope retrofit based on OBC-2012 standards can reduce the energy consumption by up to 44%. Furthermore, the optimal RSI values of all building envelope components were found to be equal or less than code requirements which outcomes significant energy savings. Lastly, the ranking of the strategies helps to identify the best option according to the priorities of a project.


2021 ◽  
Author(s):  
Sara Damyar

Building envelope retrofits is one of the options available to reduce energy consumption of postwar MURBs in Toronto. This study evaluates the impact of building envelope retrofits that meet current standards on energy consumption of a Toronto postwar MURB; utilizing eQUEST energy simulation software. Further upgrades also take place to evaluate how the impact of building envelope retrofits on energy use can be increased and optimized for all assemblies of building envelope and airtightness. Moreover, the retrofit strategies are ranked based on cost and energy-saving effectiveness. The results of the analysis reveal that building envelope retrofit based on OBC-2012 standards can reduce the energy consumption by up to 44%. Furthermore, the optimal RSI values of all building envelope components were found to be equal or less than code requirements which outcomes significant energy savings. Lastly, the ranking of the strategies helps to identify the best option according to the priorities of a project.


Author(s):  
Abdalhamid M. Ghazi Almasri, Tarek M. Farouk Housam Al- Din

In a fully glazed building façade with solar inhibitors with holes (cholesters) (PSS), it is often used as an exterior casing in order to reduce energy consumption and solve other problems such as: transparency of vision. Moreover, the function of these cholesteres is not only to control the solar inhibitors entering the building, but also to control the provision of appropriate degrees of daylight, and thus we have created a balanced solution to the daytime lighting process. Nowadays, daylight simulation software applications enable us to apply scientific analyzes of daytime management in a vacuum when using cholesters (PSs). Regardless of that, current applications of sun simulation (such as: EnergyPlus) cannot deal with some engineering configurations directly, making the process of estimating the thermal factor of solar inhibitors with holes is not possible. This research provides a scientific method to achieve integrated analyzes of daytime lighting and energy consumption of voids using cholesteres during the design process on local university buildings, and such a scientific method provides us with daylight analyzes through (DIVA) and also provides thermal analyzes via EnergyPlus with DIVA / GRASSHOPPER / ARCHSIM The goal is to control the double performance of cholesters by controlling the intensity, arrangement, and shape of these perforations using the statistical method of vertical beams (DOA), and studying the simultaneous gain of daylight and the thermal efficacy of cholesters in order to provide an annual balanced and integrated solution. The (DOA) method is effective in reducing the number of simulations drawn from a mixture of the aforementioned variables and identifying the visual arrangements of these fluids. In comparison with an imperfect interface for a building located in the buildings of the University of Aleppo in Aleppo, these solar fluids with holes achieve an expectation of a decrease .The areas that are actually illuminated by daylight are (50%) and 55% less energy is needed in the building. Although this work uses the DOA method to improve the three design variables, it is possible in the future to increase these factors to include the thickness of the panels, the materials made from them and the slope of the panels.


2021 ◽  
Vol XXIII (4) ◽  
pp. 31-37
Author(s):  
Igor Shesho ◽  
◽  
Risto Filkoski ◽  
Done Tashevski ◽  
Monika Uler-Zefikj ◽  
...  

The decrease in conventional energy resources, environmental pollution issues and climate change are the leading factors inducing the increase of energy efficiency criteria. Trends to improve energy efficiency are mainly aimed at the construction sector as one of the leading sectors in energy consumption. In the paper the performance of the decentralized solar assisted heating systems (SAHS) for climatic conditions in Macedonia was analysed in order to assess its possibility to be integrated as part of the district heating system. The analysis is based on a holistic approach, in which the performance of the SAHS is generally functionally dependent on four factors: (1) the characteristics of each component, (2) the system structure and mutual interactions of the components, (3) the management method and (4) specific energy consumption for heating of the building. The specific analysis is directed toward the assessment of the solar fraction of the SAHS as a function of the building energy performance and system heating temperature range. The numerical modelling of the processes occurring in systems was performed with the dynamic simulation software TRNSYS. Both dynamic models of the solar bivalent system and reference building were developed. The dynamic model contributes to the flexibility of conducting parametric analysis. The obtained results from the parametric analysis were condensed in a general table upon which the analysis of system performance was performed.


2020 ◽  
Vol 26 (3) ◽  
pp. 20-25
Author(s):  
Laurențiu Bogdan Asalomia ◽  
Gheorghe Samoilescu

AbstractThe paper analyses the role of control and monitoring of electro-energetic equipment in order to reduce operational costs, increase profits and reduce carbon emissions. The role of SCADA and EcoStruxure Power systems is presented and analysed taking into account the energy consumption and its savings. The paper presents practical and modern solutions to reduce energy consumption by up to 53%, mass by up to 47% and increase the life of the equipment by adjusting the electrical parameters. The Integrated Navigation System has allowed an automatic control and an efficient management. For ships, the implementation of an energy efficiency design index and new technologies was required for the GREEN SHIP project.


2015 ◽  
Vol 8 (1) ◽  
pp. 206-210 ◽  
Author(s):  
Yu Junyang ◽  
Hu Zhigang ◽  
Han Yuanyuan

Current consumption of cloud computing has attracted more and more attention of scholars. The research on Hadoop as a cloud platform and its energy consumption has also received considerable attention from scholars. This paper presents a method to measure the energy consumption of jobs that run on Hadoop, and this method is used to measure the effectiveness of the implementation of periodic tasks on the platform of Hadoop. Combining with the current mainstream of energy estimate formula to conduct further analysis, this paper has reached a conclusion as how to reduce energy consumption of Hadoop by adjusting the split size or using appropriate size of workers (servers). Finally, experiments show the effectiveness of these methods as being energy-saving strategies and verify the feasibility of the methods for the measurement of periodic tasks at the same time.


Author(s):  
Premkumar Chithaluru ◽  
Rajeev Tiwari ◽  
Kamal Kumar

Background: Energy Efficient wireless routing has been an area of research particularly to mitigate challenges surrounding performance in category of Wireless Networks. Objectives: The Opportunistic Routing (OR) technique was explored in recent times and exhibits benefits over many existing protocols and can significantly reduce energy consumption during data communication with very limited compromise on performance. Methods : Using broadcasting nature of the wireless medium, OR practices to discourse two foremost issues of variable link quality and unpredictable node agility in constrained WSNs. OR has a potential to reduce delay in order to increase the consistency of data delivery in network. Results : Various OR based routing protocols have shown varying performances. In this paper, a detailed conceptual and experimental analysis is carried out on different protocols that uses OR technique for providing more clear and definitive view on performance parameters like Message Success Rate, Packet Delivery Ratio and Energy Consumption.


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