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Incorporation of Micro Processor Controllers in the Frito-Lay Energy Program
Abstract
The evaluation and implementation of microprocessor energy management control systems in the Frito-Lay Energy Management Program is discussed. Following thorough testing of a mini-computer based system in one manufacturing facility, energy management control systems were designated for eighteen of Frito-Lay's plants. The detailed evaluation of the mini-computer showed that the system was cost effective; however, the unit provided a great deal more capacity than was necessary. The overall studies showed that effective utilization of a microprocessor capable of controlling up to 20 points was sufficient for the majority of our older plants. The controllers were designed to monitor and shed nonprocessing related loads only and were projected to show reductions in energy consumption of 4% - 5% per plant. At this conservative estimate, the internal rate of return on the investment was in excess of 30%. Data from one facility having a unit on-line for approximately one year shows actual savings to be greater than 23%. Based on current successes with the units, an expansion of the existing capabilities is being investigated.
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Citation
Kympton, H. W.; Bowman, B. M.; Chambers, D. H. (1982). Incorporation of Micro Processor Controllers in the Frito-Lay Energy Program. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /94309.