Theses and Dissertations - UTB/UTPA
Date of Award
12-2014
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Manufacturing Engineering
First Advisor
Dr. Hiram Moya
Second Advisor
Dr. Rajiv Nambiar
Third Advisor
Dr. Douglas Timmer
Abstract
Dairy operations suffer frequent stops. Product shrinkage is a consequence of downtime, which includes losses of packaging material, scraped finish product and capacity. This work proposes a troubleshooting methodology to identify causes of downtime, estimation of waste cost, and minimization of operation disruptions by applying a combination of a cost function to assess waste, and performance measurements. The drinkable yogurt process is evaluated to find the principal areas for wasted bottles and yogurt. In order to make a decision about which of those sources to address, a General Cost Function is used to estimate waste cost which include measurements that evaluate the entire process. Further performance measure analysis such as Squared Coefficient of Variation, Utilization, etc. indicated the necessary maintenance strategy to normalize the process. After the root cause of shrink was found, improvements were implemented and the performance of the station was assessed again to confirm results.
Granting Institution
University of Texas-Pan American
Comments
Copyright 2014 Maria F. Vargas. All Rights Reserved.
https://www.proquest.com/dissertations-theses/preventive-maintenance-framework-dairy-production/docview/1659795495/se-2