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Life Cycle Assessment of Asphalt Mix Containing Jordanian Oil Shale Ash

Alhunity Rozalya, Aljbour Salah H., El Qada Emad N.

Ecological Engineering & Environmental Technology

2023

Vol. 24, iss. 2

79--86

The focal theme of this study is to evaluate the life cycle of asphalt mix containing Jordanian oil shale ash (OSA). Life cycle assessment (LCA) approach was conducted to assess the environmental impact of all manufacturing stages of the asphalt mix from Global warming potential (GWP) and energy consumption (EC) perspectives. The documentation for the LCA study was done in accordance with ISO 14044:2006 standards for the research’s goal and scope, inventory analysis, impact assessment, and interpretation. The results revealed that replacing the asphalt mix partially with Jordanian OSA (10 wt.%) resulted in slight reduction in both GWP and EC. A reduction of 2.83% and 4.8% for GWP and EC, respectively, was obtained.

Adaptive inventory control system for material items with continuous non-stationary demand

Krajčovič M., Plinta D.

Management and Production Engineering Review

2014

Vol. 5, No. 1

11--20

This paper describes an algorithm of dynamic inventory control system for large numbers of material items with continuous non-stationary demand. It uses principles of pull inventory control systems, statistical inventory analysis and joint replenishment inventory systems. This algorithm was processed in software module (VBA for Excel) and applied in practice. The target of described algorithm is to keep an optimum inventory level and optimum customer service level in terms of inventory control of items with non-stationary demand.

Comprehensive approach to the inventory control system improvement

Krajčovič M., Plinta D.

Management and Production Engineering Review

2012

Vol. 3, No. 3

34-44

This paper describes a methodology for inventory analysis and reduction, which was developed at the Department of Industrial Engineering, Faculty of Mechanical Engineering, University of Zilina. The methodology describes the optimal procedure for the application of basic analytical methods and tools in practice. The results of the analysis are in the algorithm linked to the subsequent actions realized to improve inventory management system and to minimize inventory level in the company. Described procedure is the result of methodology examination and verification in practical conditions of production enterprises. In the following sections of this paper, there are presented a comprehensive approach to the inventory analysis and the own algorithm, which contains 3 phases: inventory analysis on enterprise level, summary analysis of individual item groups and individual analysis of material items. In the last section, there are described examples of results from such analysis and conclusions. The presented approach is an attempt to create a universal procedure of analysis which integrates methods and tools described in various publications.