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A novel generation expansion planning in older power plants – hybrid spotted hyena-particle swarm optimization

Arun Kumar A. Suresh S. Ramkumar A. Bhuvanesh A.
Opto-Electronics Review | 2024 | 32 | 3 | e150612 | DOI: 10.24425/opelre.2024.150612
Keywords generation expansion planning particle swarm optimization spotted hyena optimization retirement recuperation Tamil Nadu
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Abstract

Due to their lower productivity, lower reliability, and lower economic stability, older power plants are leading to higher carbon emissions. Rather than simply focusing on the retirement and recuperation of power plants, this study focuses on generation expansion planning (GEP). Considering recuperation is economically and environmentally beneficial to power the power generating company. These criteria have made the GEP problem more complex. Hence, the applications of optimization algorithms are required to solve these complex, constrained, and large-scale problems. In this study, an effective hybrid spotted hyena-particle swarm optimization (HSHPSO) algorithm is proposed to handle the GEP problem for the Tamil Nadu power system. This case study addresses the GEP problem for a 7-year planning horizon (2020–2027), as well as a 14-year planning horizon (2020–2034). A significant reduction in total cost and pollution occurs by including retirement and recuperation in GEP. To prove the effectiveness of the proposed HSHPSO technique, it is compared with the existing technologies such as particle swarm optimization (PSO) and differential evolution (DE). Compared to GEP with no recuperation or retirement, the total cost and CO2 emissions of the GEP have been reduced by 11.07% and 9.48%, respectively. Also, the results demonstrate that the HSHPSO algorithm outperformed other algorithms.
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Authors and Affiliations

Arun Kumar A.
1
Suresh S.
2
Ramkumar A.
3
Bhuvanesh A.
4
  1. Department of Electrical and Electronics Engineering, Ramco Institute of Technology, Rajapalayam, Tamil Nadu, India
  2. Department of Electronics and Communication Engineering, Sri Eshwar College of Engineering, Coimbatore, Tamil Nadu, India
  3. Department of Electrical and Electronics Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, India
  4. Department of Electrical and Electronics Engineering, PSN College of Engineering and Technology, Tirunelveli, Tamil Nadu, India

Comparative Study on Mechanical Performances of Circular and Flat Geometry Welds in Friction Stir Welding of Aluminium Alloy

S.M. Senthil S. Ragu Nathan R. Parameshwaran M. Bhuvanesh Kumar
Archives of Metallurgy and Materials | 2021 | vol. 66 | No 3 | 881-886 | DOI: 10.24425/amm.2021.136393
Keywords FSW aluminium pipe aluminium plate tensile test hardness test
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Abstract

This study is to find the extent of variation in mechanical properties between plate and pipe welds fabricated out of the same FSW process parameters. Common thickness of 3 mm along with similar tool specifications is used to fabricate the weld. Process parameters of tool rotational speed 2000 rpm and weld speed 94 mm/min that was defined as optimal for pipe weld is used as common process parameters. Welds are analyzed for hardness and tensile properties. Yield strength and ultimate tensile strength varied about 8.1% and 11.2% respectively between plate and pipe welds. The hardness of the stir zones varied about 11.6% between plate and pipe welds.
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Bibliography

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Authors and Affiliations

S.M. Senthil
1
ORCID: ORCID
S. Ragu Nathan
2
R. Parameshwaran
1
ORCID: ORCID
M. Bhuvanesh Kumar
3
  1. Kongu Engineering College, Erode, India
  2. Sree Vidyan Ikethan Engineering College, Tirupati, India
  3. National Institute of Technology, Tiruchirappalli, India

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