scholarly journals Production Line Optimization to Minimize Energy Cost and Participate in Demand Response Events

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 462
Author(s):  
Bruno Mota ◽  
Luis Gomes ◽  
Pedro Faria ◽  
Carlos Ramos ◽  
Zita Vale ◽  
...  
Keyword(s):  
Demand Response ◽  
Production Line ◽  
Textile Industry ◽  
Complex Problem ◽  
Energy Availability ◽  
Energy Prices ◽  
Production Lines ◽  
Renewable Sources ◽  
Consumption Cost

The scheduling of tasks in a production line is a complex problem that needs to take into account several constraints, such as product deadlines and machine limitations. With innovative focus, the main constraint that will be addressed in this paper, and that usually is not considered, is the energy consumption cost in the production line. For that, an approach based on genetic algorithms is proposed and implemented. The use of local energy generation, especially from renewable sources, and the possibility of having multiple energy providers allow the user to manage its consumption according to energy prices and energy availability. The proposed solution takes into account the energy availability of renewable sources and energy prices to optimize the scheduling of a production line using a genetic algorithm with multiple constraints. The proposed algorithm also enables a production line to participate in demand response events by shifting its production, by using the flexibility of production lines. A case study using real production data that represents a textile industry is presented, where the tasks for six days are scheduled. During the week, a demand response event is launched, and the proposed algorithm shifts the consumption by changing task orders and machine usage.

scholarly journals c-Bottlenecks in serial production lines: Identification and application

2001 ◽  
Vol 7 (6) ◽  
pp. 543-578 ◽  
Author(s):  
S.-Y. Chiang ◽  
C.-T. Kuo ◽  
S. M. Meerkov
Keyword(s):  
Cycle Time ◽  
Production Line ◽  
Markovian Model ◽  
Production Lines ◽  
Serial Production ◽  
Automotive Engine ◽  
Machine Reliability ◽  
Bottleneck Identification ◽  
Serial Production Lines

The bottleneck of a production line is a machine that impedes the system performance in the strongest manner. In production lines with the so-called Markovian model of machine reliability, bottlenecks with respect to the downtime, uptime, and the cycle time of the machines can be introduced. The two former have been addressed in recent publications [1] and [2]. The latter is investigated in this paper. Specifically, using a novel aggregation procedure for performance analysis of production lines with Markovian machines having different cycle time, we develop a method for c-bottleneck identification and apply it in a case study to a camshaft production line at an automotive engine plant.

scholarly journals Effect of Preventive Maintenance on the Production Line Machines and Systems Reliability: Case Study

2020 ◽  
pp. 58-65
Author(s):  
A. M. Badiea ◽  
A. A. Adel ◽  
H. A. Aamer
Keyword(s):  
Preventive Maintenance ◽  
Production Line ◽  
Production Lines ◽  
Mean Time Between Failure ◽  
One Year ◽  
Mean Time

The aims of this study are to introduce the appropriate preventive maintenance to the production line machines at the company to increase their reliability and reduction the shutdown, and to obtain more safety. Mean time between failure, mean down time and availability are investigated as the best indicators to generally evaluate all type of maintenance. Pareto diagram and Effect-Cause techniques both have been used for identifying where and what are the problems in the production lines. The big and serious way that the company staff was using was maintenance of run to failure. Many solutions in this paper are introduced to the company to follow the proper preventive maintenance. After one year monitoring to those production lines, their productivity increases by 15.47% and the reliability becomes high.

scholarly journals SIMULATION MODELING OF PRODUCTION LINES: A CASE STUDY OF CEMENT PRODUCTION LINE

2013 ◽  
Vol 41 (3) ◽  
pp. 1045-1053 ◽  
Author(s):  
M. Heshmat ◽  
M. A. El-Sharief ◽  
M. G. El- Sebaie
Keyword(s):  
Production Line ◽  
Simulation Modeling ◽  
Production Lines ◽  
Cement Production

scholarly journals Productivity improvement in the production line with lean manufacturing approach: case study PT. XYZ

2018 ◽  
Vol 154 ◽  
pp. 01093
Author(s):  
Halimatussa’ diah ◽  
Ali Parkhan ◽  
Muchamad Sugarindra
Keyword(s):  
Production Line ◽  
Lean Manufacturing ◽  
Textile Industry ◽  
Value Added ◽  
Value Stream Mapping ◽  
Competitive Strategies ◽  
Productivity Improvement ◽  
Value Stream ◽  
Current Production

The increaseing productivity is one of the competitive strategies that can be applied in a company in order to survive in an intense competitive presure. PT. XYZ is a textile industry manufacturing golf gloves and caddy bag. Every day, the company has a production target of 600 pieces per line. However, the desired target is not achieved that it will affect the delay in delivery of products to customers. In this research, a case study on implementing value stream mapping and Kaizen as the lean manufacturing concept is reported. The purpose of this study is to map the current production line, analyse and design the future value stream mapping by eliminating waste occured. It is obtained a lead time reduction as much as 440.4 seconds through eliminating 17 non-value added activities. Then, the output can be increased up to 21% which is equal to 502 pieces.

Study The Effect of Machine Efficiency In Production Lines Balancing

2020 ◽  
Vol 38 (9A) ◽  
pp. 1283-1292
Author(s):  
Rasha J. Marzoog ◽  
Sawsan S. Al-Zubaidyb ◽  
Ahmed A. Alduroobi
Keyword(s):  
Production Line ◽  
Idle Time ◽  
Line Balancing ◽  
Production Flow ◽  
Production Lines ◽  
Work Time ◽  
Efficiency Criterion ◽  
Maximum Production ◽  
On Line

Production Line Balancing (PLB) is the technique of assigning the operations to workstations in such a way that the assignment minimizes the idle time between workstations. PLB aims to equator the workload in each workstation to assure maximum production flow. By adding machine in specific configurations is one treatment which leads to this leveling in workload. This research studies the different efficiencies of the added machine and the effect of these efficiencies on line balancing to select the machine with suitable efficiency. This will be led to reduce the idle time between workstations and increasing production flow. The work time considered as the efficiency criterion for this case study. The study has been implemented on a dumb truck production line and resulted in increasing the line efficiency to 81.7%.

Tackling Means for Balancing the Production Lines

2011 ◽  
Vol 383-390 ◽  
pp. 4620-4628
Author(s):  
Olga Ioana Amariei ◽  
Codruţa Oana Hamat ◽  
Liviu Coman ◽  
Cristian Fănică ◽  
Cristian Rudolf
Keyword(s):  
Production Line ◽  
Idle Time ◽  
Computer Method ◽  
Basic Method ◽  
Assembly Lines ◽  
Production Lines ◽  
Heuristic Techniques ◽  
Human Operators

Balancing a production line means to organize the activity of the human operators, to establish the production flux and designing the line, minimizing the idle time for the machines and the operators, through an optimal charge bestowed upon them. WinQSB software offers three methods of solving this type of problem, namely: heuristic techniques (a basic method is specified and an alternative one from all the available ones), Optimizing Best Bud Search and Computer Method of Sequencing Operations for Assembly Lines, presented all in the present paper.

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