Disassembly and Recovery Planning for a Salvaging Facility

Akcali, Elif
Yildirim, Gonca
Bayındır, Zeynep Pelin
Stochastic inventory models are investigated for a salvaging facility that disassembles a type of end-of-life product for recovery. A single-period newsvendor type of setting is considered to capture the basic tradeoffs between unit cost and revenue structures under three different product structure and recovery operation schemes. A numerical study is conducted to analyze the effects of dependencies due to product and recovery operation structures.


Part Recovery under Quality and Demand Uncertainty with Environmental Costs
Yildirim, Gonca; Akcali, Elif; Bayındır, Zeynep Pelin (null; 2010-10-24)
We consider acquisition and stocking decisions, motivated by the operations of a salvaging facility that collects a particular end-of-life product, performs a series of disassembly and recovery operations to reclaim a reusable part and sells the recovered part in the used parts market. We model uncertainties in demand and quality classification of the parts and include environmental fees that create a non-negligible tradeoff against the operational costs in acquisition and stocking decisions.
Analyzing the effects of inventory cost setting rules in a disassembly and recovery environment
Akcali, Elif; Bayındır, Zeynep Pelin (Informa UK Limited, 2008-01-01)
In this study we consider a disassembly and recovery facility receiving end-of-life products and facing demand for a specific part that is disassembled from the product and then recovered. The disassembly and recovery operations can be either performed before hand, or upon customer arrival. In the latter case, a discount on the selling price is applied to compensate the customer for waiting for the completion of the disassembly and recovery operations. One of the dificulties faced in planning for such a sys...
Reactive-power compensation of coal mining excavators by using a new-generation STATCOM
Bilgin, Hazim Faruk; Ermiş, Muammer; Kose, K. Nadir; Cadirci, Isik; Acik, Adnan; Demirci, Turan; Terciyanli, Alper; Kocak, Cetin; Yorukoglu, Mustafa (2007-01-01)
This paper deals with the development and implementation of a current-source-converter-based static synchronous compensator (CSC-STATCOM) applied to the volt-ampere-reactive (VAR) compensation problem of coal mining excavators. It is composed of a +/- 750-kVAR full-bridge CSC with selective harmonic elimination, a low-pass input filter tuned to 200 Hz, and a Delta/Y-connected coupling transformer for connection to medium-voltage load bus. Each power semiconductor switch is composed of an asymmetrical integr...
Donor-Acceptor Polymer with Benzotriazole Moiety: Enhancing the Eleetrochromic Properties of the "Donor Unit"
Balan, Abidin; Günbaş, Emrullah Görkem; Durmus, Asuman; Toppare, Levent Kamil (2008-12-23)
A new donor-acceptor type polymer poly(4,7-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-dodecyl-2H-benzo [1,2,3] triazole) (PBEBT) was synthesized and its electrochromic properties were investigated. Spectroelectrochemistry studies for PBEBT showed an absorption maximum at 618 nm which is nearly identical to that of poly(ethylenedioxythiophene) (PEDOT) where polymer has a saturated blue color in its neutral state. However, PBEBT film revealed better properties than that of PEDOT in terms of optical contr...
Fracture analysis of welded connections
Yetgin, Ali; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2013)
The main objective of this thesis is to evaluate structural integrity of a multi barrel launcher system on fracture mechanics basis by using finite element method. A global finite element model that includes necessary kinematic and elastic connections is built. Dynamic firing forces are applied on global finite element model and general structural response is obtained. Sub modeling method is used in order to perform crack analysis. Since size of global model is too large to include solid crack elements whic...
Citation Formats
E. Akcali, G. Yildirim, and Z. P. Bayındır, “Disassembly and Recovery Planning for a Salvaging Facility,” 2009, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/85187.