Specifying and installing the proper equipment for a process is the key to minimizing the long-term cost of producing products. But often the objective to purchasing equipment is to minimize the initial capital cost. Minimizing this initial purchase cost, however, may require the purchaser to add costly modifications to the line after installation, creating higher operating costs, lengthy troubleshooting, and a delay to market entry. Principles and strategies are presented here that show how to avoid this mistake, and case studies are provided as learning tools.
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2.
Spalding, M.A. , Powers, J.R., Wagner, P.A. and Hyun, K.S. (2000). Flow Surging in Single-Screw, Plasticating Extruders, SPE-ANTECTech. Papers, 46: 254-258.
3.
Hyun, K.S. and Spalding, M.A. (1996). Use of Process Data Obtained from a Data Acquisition System for Optimizing and Debugging Extrusion Processes, Adv. Polym. Tech., 15(1): 29-40.
4.
Spalding, M.A. and Hyun, K.S. (2003). Troubleshooting Mixing Problems in Single-Screw Extruders, SPE-ANTECTech. Papers , 49: 229-233.
5.
Hyun, K.S., Spalding, M.A. and Powers, J. (1995). Elimination of a Restriction at the Entrance of Barrier Flighted Extruder Screw Sections, SPE-ANTECTech. Papers, 41: 293-301.
6.
Spalding, M.A. (2004). Metering Channel Flows and Troubleshooting Single-Screw Extruders, SPE-ANTECTech. Papers, 50: 329-333.
