Optimal fuzzy control to reduce energy consumption in distillation columns

Abstract Foundry resistance furnaces are thermal devices with a relatively large time delay in their response to a change in power parameters. Commonly used in automation classical PID controllers do not meet the requirements of high-quality control. Developed in recent years, fuzzy control theory is increasingly being used in various branches of economy and industry. Fuzzy controllers allow to introduce new developments in control systems of foundry furnaces as well. Correctly selected fuzzy controller can significantly reduce energy consumption in a controlled thermal process of heating equipment. The article presents a comparison of energy consumption by control system of foundry resistance furnace, equipped with either a PID controller or fuzzy controller optimally chosen.

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Modeling, Simulation, and Thermally Optimization of Thermally-Coupled Distillation Columns

International Journal of Chemoinformatics and Chemical Engineering ◽

10.4018/ijcce.2016010101 ◽

2016 ◽

Vol 5 (1) ◽

pp. 1-11

Author(s):

Fatemeh Safari ◽

Arjomand Mehrabani-Zeinabad

Keyword(s):

Energy Consumption ◽

Distillation Column ◽

Direct Sequence ◽

Thermally Coupled Distillation ◽

Distillation Columns ◽

Modeling Simulation ◽

Heating And Cooling ◽

Reduce Energy Consumption ◽

Thermally Coupled Distillation Column ◽

Backward Integration

Distillation is one of the most widely used separation units that consumes the largest amount of energy in chemical and petrochemical industries. Heat integration of thermally coupled distillation column is one of the methods to reduce energy-consumption. This paper provides a comparison between two simple columns with direct configuration and thermally coupled distillation column with direct sequence backward integration arrangement for separation of a ternary mixture based on energy-consumption. The influence of changing numbers of first and second column trays on heating and cooling rate of each column are investigated based on a developed mathematical model using conservation law of mass and energy and bubble-point method. The average relative error between calculated and industrial temperatures in some trays is about 0.74%. The condenser duty of high pressure column is about 9.73×109 kJ/h to provide heating of low pressure column. According to the simulation results, the thermally coupled construction saves energy about 50% more.

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Naval Energy Management System

International conference KNOWLEDGE-BASED ORGANIZATION ◽

10.2478/kbo-2020-0109 ◽

2020 ◽

Vol 26 (3) ◽

pp. 20-25

Author(s):

Laurențiu Bogdan Asalomia ◽

Gheorghe Samoilescu

Keyword(s):

Energy Consumption ◽

Power Systems ◽

New Technologies ◽

Integrated Navigation ◽

Integrated Navigation System ◽

Efficient Management ◽

Reduce Energy Consumption ◽

Energy Efficiency Design Index ◽

Green Ship

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.

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An Analysis of the Use of Energy Audits, Solar Panels, and Wind Turbines to Reduce Energy Consumption from Non Renewable Energy Sources

10.21236/ada626067 ◽

2015 ◽

Author(s):

Isaac J. Crumbly ◽

Haixin Wang

Keyword(s):

Renewable Energy ◽

Energy Consumption ◽

Wind Turbines ◽

Renewable Energy Sources ◽

Energy Sources ◽

Solar Panels ◽

Reduce Energy Consumption ◽

Energy Audits

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The Research of Measuring Approach and Energy Efficiency for Hadoop Periodic Jobs

The Open Fuels & Energy Science Journal ◽

10.2174/1876973x01508010206 ◽

2015 ◽

Vol 8 (1) ◽

pp. 206-210 ◽

Cited By ~ 2

Author(s):

Yu Junyang ◽

Hu Zhigang ◽

Han Yuanyuan

Keyword(s):

Energy Efficiency ◽

Cloud Computing ◽

Energy Consumption ◽

Energy Saving ◽

Energy Estimate ◽

Cloud Platform ◽

Periodic Tasks ◽

Current Consumption ◽

Reduce Energy Consumption

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.

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Performance Analysis of Energy Efficient Opportunistic Routing Protocols in Wireless Sensor Network

International Journal of Sensors Wireless Communications and Control ◽

10.2174/2210327909666191026092311 ◽

2019 ◽

Vol 09 ◽

Cited By ~ 1

Author(s):

Premkumar Chithaluru ◽

Rajeev Tiwari ◽

Kamal Kumar

Keyword(s):

Energy Consumption ◽

Routing Protocols ◽

Energy Efficient ◽

Data Communication ◽

Opportunistic Routing ◽

Link Quality ◽

Delivery Ratio ◽

Performance Parameters ◽

Wireless Medium ◽

Reduce Energy Consumption

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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