scholarly journals Factors Influencing Wastivity in Small Scale Industries: A Case Study of Hubli-Dharwad

2014 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Chetan V. Hiremath ◽  
Shankargouda C. Patil

There are many approaches to enhance the overall performance of the production systems. But these approaches are inclined towards intense use of resources and have caused huge pressure on limited resources. Many scholars suggest waste management as an alternative and complimentary approach to tackle this problem. This approach is in nascent stage and lacks standard definitions, practices and tools. The research is taken up in Dharwad District (Karnataka) to know which major factors contribute significantly for waste generation in small scale units and to test whether wastivity can be used to compare the systems to evaluate their performance. The study found that lack of Production Planning and Control contributes maximum toward waste generation followed by Human Resource practices and Inventory Management. Also, it was found that wastivity can be used as a measure to compare production units as it is unit less and is independent of category of production system. There is a further scope to quantify the contribution of each sub systems towards waste generation to develop larger control mechanisms like Total Waste Management System.

Author(s):  
Daisy Ganados ◽  
Jessebel Gencianos ◽  
Ruth Ann Faith Mata ◽  
Christopher Sam Pates ◽  
Christine Mariesalvatiera ◽  
...  

Solid waste management is the process of collecting and treating solid wastes. It also offers solutions for recycling items that do not belong to garbage or trash. Reducing and eliminating the adverse impact of waste materials on human health and the environment supports economic development. Quality of life is the primary goal of solid waste management. To ensure environmental best practices, content or hazard potential and solid waste must be managed systematically, and it is needed to be incorporated into ecological planning. This study aimed to assess Bonbon, Clarin, Bohol residents towards the proper implementation of solid waste management. The quantitative-descriptive method of research was used with the aid of a modified standardized survey questionnaire. The data showed that mothers or married respondents aged 21-30 got the highest percentage. Therefore, it shows that they are the ones primarily in charge of household waste management. The Assessment of the implementation of Solid Waste Management was conducted per dimension: Planning and Control, Zero Waste Collection Service, and Waste Disposal System. According to the results, the dimension of Planning and Control was labeled as Strongly Implemented, Zero Waste Collection Service was marked as Moderately Implemented, and Waste Disposal System was categorized as Moderately Not Implemented. Therefore, it shows that the Solid Waste Management in Bonbon, Clarin, Bohol was moderately implemented. Thus, the study's outcome served as a guide to enhance their best practices for the full implementation and sustainability of solid waste management in their locality.


2018 ◽  
Vol 37 (3) ◽  
pp. 210-218
Author(s):  
Cansu Demir ◽  
Ülkü Yetiş ◽  
Kahraman Ünlü

Thermal power plants are of great environmental importance in terms of the huge amounts of wastes that they produce. Although there are process-wise differences among these energy production systems, they all depend on the logic of burning out a fuel and obtaining thermal energy to rotate the turbines. Depending on the process modification and the type of fuel burned, the wastes produced in each step of the overall process may change. In this study, the most expected process and non-process wastes stemming from different power generation processes have been identified and given their European Waste Codes. Giving priority to the waste minimization options for the most problematic wastes from thermal power plants, waste management strategies have been defined. In addition, by using the data collected from site visits, from the literature and provided by the Turkish Republic Ministry of Environment and Urbanization, waste generation factor ranges expressed in terms of kilogram of waste per energy produced annually (kg/MWh) have been estimated. As a result, the highest generation was found to be in fly ash (24–63 for imported coal, 200–270 for native coal), bottom ash (1.3–6 for imported coal, 42–87 for native coal) and the desulfurization wastes (7.3–32) produced in coal combustion power plants. The estimated waste generation factors carry an important role in that they aid the authorities to monitor the production wastes declared by the industries.


2020 ◽  
Vol 110 (04) ◽  
pp. 255-260
Author(s):  
Marvin Carl May ◽  
Andreas Kuhnle ◽  
Gisela Lanza

Im Rahmen der stufenweisen Umsetzung von Industrie 4.0 erreicht die Vernetzung und Digitalisierung die gesamte Produktion. Den physischen Produktionsprozess nicht nur cyber-physisch zu begleiten, sondern durch eine virtuelle, digitale Kopie zu erfassen und zu optimieren, stellt ein enormes Potenzial für die Produktionssystemplanung und -steuerung dar. Zudem erlauben digitale Modelle die Anwendung intelligenter Produktionssteuerungsverfahren und leisten damit einen Beitrag zur Verbreitung optimierender adaptiver Systeme.   In the wake of implementing Industrie 4.0 both integration and digitalization affect the entire production. Physical production systems offer enormous potential for production planning and control through virtual, digital copies and their optimization, well beyond purely cyber-physical production system extensions. Furthermore, digital models enable the application of intelligent production control and hence contribute to the dissemination of adaptively optimizing systems.


2020 ◽  
Vol 12 (9) ◽  
pp. 3791 ◽  
Author(s):  
Olumide Emmanuel Oluyisola ◽  
Fabio Sgarbossa ◽  
Jan Ola Strandhagen

Many companies are struggling to manage their production systems due to increasing market uncertainty. While emerging ‘smart’ technologies such as the internet of things, machine learning, and cloud computing have been touted as having the potential to transform production management, the realities of their adoption and use have been much more challenging than anticipated. In this paper, we explore these challenges and present a conceptual model, a use-case matrix and a product–process framework for a smart production planning and control (smart PPC) system and illustrate the use of these artefacts through four case companies. The presented model adopts an incremental approach that companies with limited resources could employ in improving their PPC process in the context of industry 4.0 and sustainability. The results reveal that while make-to-order companies are more likely to derive greater benefits from a smart product strategy, make-to-stock companies are more likely to derive the most benefit from pursuing a smart process strategy, and consequently a smart PPC solution.


1995 ◽  
Vol 1 (4) ◽  
pp. 341-363 ◽  
Author(s):  
Stephen R. Lawrence ◽  
Arnold H. Buss

The management of bottlenecks has become a central topic in the planning and control of production systems. In this paper, we critically analyze bottlenecks from an economic perspective. Using a queueing network model, we demonstrate that bottlenecks are inevitable when there are differences in job arrival rates, processing rates, or costs of productive resources. These differences naturally lead to the creation of bottlenecks both for facilities design and demand planning problems. To evaluate bottlenecks from an economic perspective, we develop the notion of an “economic bottleneck,” which defines resources as bottlenecks based on economic, rather than physical, characteristics.


2020 ◽  
Author(s):  
Νικόλαος Νικολάκης

Αντικείμενο αυτής της εργασίας είναι η μελέτη των συστημάτων παραγωγής ως κυβερνο-φυσικών συστημάτων επικεντρώνοντας στον προσαρμοστικό σχεδιασμό/προγραμματισμό κι έλεγχό τους. Απώτερος σκοπός είναι η δυνατότητα αναδιαμόρφωσής τους για την αύξηση της αυτοματοποίησης και της ευελιξίας στις συνθήκες εργασίας καθώς και σε μεταβαλλόμενες απαιτήσεις παραγωγής. Για αυτό το λόγο, μέθοδοι, που μεταφράζονται σε διαφορετικά επίπεδα της πυραμίδας αυτοματισμού, μέσω της αρχιτεκτονικής 5C για κυβερνο-φυσικά συστήματα, έχουν διερευνηθεί κι ενσωματωθεί σε υπό-μελέτη κυβερνο-φυσικά συστήματα. Πρώτον, μελετάται ο δυναμικός έλεγχος κλειστού βρόχου ενός κυβερνο-φυσικού συστήματος σχετικά με την ασφαλή συνεργασία ανθρώπου-ρομπότ σε ένα περιβάλλον εργασίας. Μια αρχική εφαρμογή αξιολογείται σε μια συγκεκριμένη περίπτωση χρήσης και συγκρίνονται τα αποτελέσματά της σχετικά με τη χρήση ενός ή περισσοτέρων αισθητήρων. Η σύγκριση πραγματοποιείται με βάση τον χρόνο απόκρισης του συστήματος για την ανίχνευση της ανθρώπινης παρουσίας εντός μιας προκαθορισμένης ζώνης ασφαλείας. Στη συνέχεια, εξετάζονται οι χειρωνακτικές εργασίες συναρμολόγησης, συζητείται ο προσαρμοστικός προγραμματισμός και ο επαναπροσδιορισμός του σταθμού συναρμολόγησης. Η εφαρμογή ψηφιακού διδύμου παρουσιάζεται για να κλείσει ψηφιακά το βρόχο μεταξύ φυσικού και εικονικού συστήματος, επιτρέποντας έτσι μια αποτελεσματική, από πλευράς κόστους, βελτίωση του σχεδιασμού, της ανάθεσης καθώς και ολόκληρου του κύκλου ζωής των διαδικασιών παραγωγής με βάση τον άνθρωπο. Μια μελέτη περίπτωσης σε χώρο αποθήκης καταδεικνύει τη σκοπιμότητα και αποτελεσματικότητα της προτεινόμενης προσέγγισης. Επίσης, στο πλαίσιο της τρίτης μελέτης, συζητείται ένα ολιστικό πλαίσιο για τα αναδιαμορφώσιμα κυβερνο-φυσικά συστήματα παραγωγής, που υλοποιούνται από τις τεχνολογίες των υπηρεσιών πακέτων λογισμικού (containers). Η παρουσιαζόμενη προσέγγιση ενισχύει την ευελιξία σε ένα κυβερνο-φυσικό σύστημα παραγωγής μέσω της δυναμικής αναδιάρθρωσης του συστήματος αυτοματισμού και του χρονοδιαγράμματος παραγωγής, με βάση τα συμβάντα. Η προτεινόμενη λύση υλοποιήθηκε σε μια εφαρμογή λογισμικού και εφαρμόστηκε σε ένα κυβερνο-φυσικό σύστημα παραγωγής μικρής κλίμακας που προέρχεται από την αυτοκινητοβιομηχανία. Τέλος, η συμβολή των στρωμάτων ολοκλήρωσης της αρχιτεκτονικής 5C για την υλοποίηση και την ανάπτυξη λειτουργιών CPPS, που μετατρέπει τις συμβατικές διαδικασίες παραγωγής σε έξυπνες, έχει αξιολογηθεί μέσω ενός συνόλου δεικτών επιπέδου ευελιξίας μέσω του αυτοματισμού και δεικτών χαρακτηριστικών των κυβερνο-φυσικών συστημάτων παραγωγής.


2021 ◽  
pp. 165-185
Author(s):  
Manuel Woschank ◽  
Patrick Dallasega ◽  
Johannes A. Kapeller

AbstractThe integrated planning and control of logistics processes can be seen as one of the basic prerequisites for the successful implementation of smart production systems and smart and lean supply chains, as well. Therefore, modern Industry 4.0 approaches are mainly focusing on (1) the principles of decentralization and (2) the usage of real-time data to improve the overall logistics performance in terms of promised delivery dates, work in progress, capacity utilization, and lead-times. In this context, this chapter systematically evaluates the application of decentralized production planning and control strategies, e.g., KANBAN and CONWIP, in comparison with traditional approaches, like MRP. Moreover, the impact of real-time data usage in production planning and control systems on lead-times and work in progress is investigated using a discrete event simulation based on primary data from a make to order manufacturer. The results of this industrial case study research confirm the significant potential that lies in smart production systems and smart and lean supply chains and, therefore, in the introduction of Industry 4.0 technologies and technological concepts in production and logistics systems.


2018 ◽  
Vol 215 ◽  
pp. 01031
Author(s):  
Maksum Tanubrata ◽  
Ika Gunawan

Material inventory management is one part of the logistics system devoted to project implementation on material procurement as per the needs plan procurement management is a very important material function, since the material inventory for a construction project involves a considerable investment cost. In general, every construction project involves complex activities, which involves the sharing of activities and operations. Material acquisition activities require good planning and control considering the large percentage of material costs to the total cost of the project. So if less effective material handling will result in loss of time, cost and quality. then this should receive high attention from contractors for the smooth and performance to be achieved in the implementation of construction projects.


2015 ◽  
Vol 4 (1and2) ◽  
Author(s):  
Vipul Chalotra ◽  
Neetu Andotra

The present research highlights some of the important benefits that proper inventory management assures, through the assistance of primary data collected from eight small scale cement firms operating in SIDCO & SICOP, under DIC (District Industries Center) in District Udhampur of Jammu & Kashmir State. The main recompenses apprehended were Assists in cost reduction, Satisfied customers, Liaison with market, and Builds goodwill. The results of the ranking table revealed that the variable Assists in cost reduction scores highest mean rank as it accrued to be the main benefit derived by the cements industry. The variable Satisfied customers received second rank followed by Liaison with market with rank three due to larger market distances and erratic production schedule. The variable Builds goodwill received the fourth rank.


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