Eco-conservational manufacturing inventory framework for deteriorating and defective products (original) (raw)

A Sustainable Inventory Model with Imperfect Products, Deterioration, and Controllable Emissions

Mathematics, 2020

Maintaining product quality and environmental performance are emerging concerns in modern competitive and transparent businesses. Many retailers separate perfect products from imperfect ones to ensure product quality and endeavor to achieve carbon dioxide (CO2) reduction through green technology investments and sustainable inventory planning. Product deterioration often badly hampers the retailing business; hence, suitable preservation technologies are used. In this study, we examined the optimization model of the selling price, investment, and replenishment planning to maximize the total profit. The proposed model considered the effect of a greater deterioration rate and discount price of imperfect products. Due to the high uncertainty in demand, a realistic holding cost was deliberated with a variable and constant part. Every time the retailer transports purchased items, greenhouse gases (GHGs), including CO2, are produced. Government regulations on CO2 minimization and customer a...

Recent Trends in Sustainable Inventory Models: A Literature Review

Sustainability, 2021

Greenhouse gas emissions are increasing global warming significantly, hence the need for manufacturing companies to include sustainability strategies in their supply chain to reduce emissions generated by their operations. This article aims to provide a systematic literature review on integrating sustainability issues into inventory management models to support scholars and practitioners in decision-making processes according to their market requirements. Thus, this paper discusses the most relevant papers published on inventory management topics that consider environmental criteria such as greenhouse gas emissions, ecological quality controls, unsold inventory, and fixed carbon costs. Therefore, we have extended the literature review to incorporate sustainability considerations in inventory models involving an industry’s environmental and social effects. As a result, in this article, a detailed analysis of the existing literature and related weaknesses provide meaningful discussion...

Inventory Management Sustainability

International Journal of System Dynamics Applications

Inventory optimality is an option of energy utilization proportionality that can lessen carbon emanations and maximize profitability. This study proposes an inventory management model in which the stock volume is optimally decided to diminish energy per resource utilized in-other to reduce carbon emanations. This will likewise help in concluding renewal volume optimally. Consequently, the study utilized economic order quantity (EOQ) to decide inventory volumes in-other to decrease carbon emanations so as to augment profits of the inventory chain. Partial least square(PLS) was additionally utilized to examine the extent of inventory management frameworks on environmental sustainability. The study, therefore, shows its oddity and pertinency by utilizing economic order quantity(EOQ) and partial least square(PLS) to examine and optimize inventory respectively, as it gives a perspective of decreasing carbon emanations during inventory procedures.

Economic Order Quantity Model for Sustainable Inventory Considering Different Sources of Environmental Cost Along with the Non- Environmental Cost

2021

Department of Mathematics, Holy Cross College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli-620002, India. Abstract: Mitigating carbon emission in inventory has become an important issue for companies. Nowadays, companies are looking for solutions to reduce the carbon emission due to carbon policies imposed by various regulatory bodies. Not only for regulations, ISO certification, business competitive and customer satisfaction also encourage organizations to adopt green practices in their supply chain. In this paper, we develop a new sustainable inventory model considering carbon emission function which includes different sources of pollution. A mathematical model is to determine the optimal order quantity and total cost of this system. A numerical example is illustrated to present the proposed model.

Single Vendor-Buyer Integrated Inventory Model for Deteriorating Items Considering Carbon Emission

2017

In this study, we present an integrated single vendor-buyer inventory model considering deterioration and carbon emission simultaneously. We focus on the emissions from warehousing, transport activity as well as emission from the disposal of the deteriorated items. A numerical example is developed to illustrate the proposed solution procedure. Computational results indicate that by incorporating carbon emissions into the integrated inventory model, we can reduce the total carbon emission and slightly reduce the total supply chain cost. We also show that the integrated inventory model has significantly reduced the total cost and total carbon emissions as compared to the result when the decision is made solely from the buyer’s perspective.

A Multiple Production Setups Inventory Model for Imperfect Items Considering Salvage Value and Reducing Environmental Pollution

Operations Research and Applications: An International Journal (ORAJ), 2017

This paper presents an imperfect manufacturing system in which production ability can produce items in m production setups and rework the imperfect quality items in one rework setup. Rework is one of the main issues in reverse logistic and green supply chain to reduce production cost and environmental problem. The aim of this research is to minimize the total inventory cost by determining the optimal cycle time and the optimal number of production setups. The convexity of the inventory model is derived by using mathematical software. The result is illustrated with numerical example for the model. The effects of the problem parameters upon the optimal solution are examined numerically. This model can be applied to optimizing the total inventory cost for the business enterprises where production rate and demand rate are time dependent and salvage value is incorporated to the deteriorated items.

Vendor-managed inventory (VMI) deteriorating item model taking into account carbon emissions

Scientia Iranica

This research investigates the primary actions that generate carbon supply chain emission generated by the transport of deteriorating products. This study applies a vendormanaged inventory (VMI) model that considers deteriorating items with a single-setupsingle-delivery (SSSD) system, and also a single-setup-multiple-delivery (SSMD) system. This study's managerial insights can help both researchers and businesses make inventory management decisions that reduce the total cost of processing these deteriorating commodities, as well as the total cost of carbon emissions. A numerical example optimizing the order quantity and order frequency for each manufacturing cycle is shown. Findings from this research can assist businesses in discovering an efficient inventory management approach that is crucial to lowering carbon emissions, particularly for deteriorating goods.

An Inventory Model for Growing Items with Imperfect Quality When the Demand Is Price Sensitive under Carbon Emissions and Shortages

Mathematical Problems in Engineering, 2021

Nowadays, it is well known that global warming is a great hazard to the planet, and the carbon emissions are a principal source of global warming. For this reason, the customers have become more environment and quality conscious than before, and as a result, they request the firms to be ecofriendly. In this context, it is desirable that companies develop and implement inventory models which consider sustainability issues. Furthermore, the companies face problems of shortages and setting prices in order to persist in a competitive and challenging business. Besides, there exists a kind of items different than the traditional products that it is necessary to feed them until a target weight is reached in order to slaughter and sell to customers. These are named as growing items. In this sense, this research work proposes an inventory model for growing items with imperfect quality when the demand is price sensitive under carbon emissions and shortages. The shortages are fully backordered...

Modelling Sustainable Development Aspects within Inventory Supply Strategies

Modelling and Simulation in Engineering

Nowadays, inventory management is a tool that must be extended to cover all aspects of the supply chain (SC). One of these aspects is Sustainable Development (SD) which emphasizes the balance between economic well-being, natural resources, and society. As inventory involves the use of natural and economic resources, the integration of SD criteria is important for a more efficient and sustainable SC. In this work, the most important SD variables associated with inventory management were identified. These variables were integrated as cost elements within a nondeterministic inventory control model to include SD criteria within inventory supply strategies. Through the assessment of the proposed integrated model, it was determined that, although SD practices involve additional investments, specific practices such as reuse/recycling and government incentives can increase revenue and profits. This is important for the development of government and business strategies to perform sustainable...