Title
EPL models with fuzzy imperfect production system including carbon emission: a fuzzy differential equation approach
Abstract
The paper outlines the production policies for maximum profit of a firm producing imperfect economic lot size with time-dependent fuzzy defective rate under the respective country’s carbon emission rules. Generally in economic production lot-size models, defective production starts after the passage of some time from production commencement. So the starting time of producing defective units is normally uncertain and imprecise. Thus, produced defective units are fuzzy, partially reworked instantly and sold as fresh units. As a result, the inventory level at any time becomes fuzzy and the relation between the production, demand and inventory level becomes a fuzzy differential equation (FDE). Nowadays, different governments have made environmental regulations following the United Nations Framework Convention on Climate Change to reduce carbon emission. Some governments use cape and trade policy on emission. Due to this, firms are in fix how to optimize the production. If the firms produce more, the profit increases along with more emission and corresponding tax. Here, models are formulated as profit maximization problems using FDE, and the corresponding inventory and environmental costs are calculated using fuzzy Riemann integration. An \(\alpha \)-cut of average profits is obtained and the reduced multi-objective crisp problems are solved using intuitionistic fuzzy optimization technique. The models are illustrated numerically and results are presented graphically. Considering different carbon regulations, an algorithm for a firm management is presented to achieve the maximum profit. Real-life production problems for the firms in Annex I and developing countries are solved.
Year
DOI
Venue
2020
10.1007/s00500-019-03967-8
Soft Computing
Keywords
Field
DocType
Fuzzy imperfect production, Carbon emission, Fuzzy differential equation, Intuitionistic fuzzy optimization technique
Riemann integral,Mathematical optimization,Imperfect,Computer science,Commercial policy,Fuzzy logic,Fuzzy differential equations,Profit maximization,Profit (economics),United Nations Framework Convention on Climate Change
Journal
Volume
Issue
ISSN
24
2
1433-7479
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Manoranjan De101.35
Barun Das2649.18
Manoranjan Maiti351447.77