Abstract

About 37% of the energy consumed in the United States is used by industrial facilities, and a considerable fraction of this energy can be saved by practicing simple energy conservation measures. In this paper we give an overview of such conservation measures complete with the analysis, the potential energy and cost savings, the implementation costs, and simple payback periods. The proposed measures are intended as a retrofit for existing facilities, and most of them can be implemented by the maintenance personnel of the facilities. The recommendations are based on our observations and measurements during energy audits of numerous manufacturing facilities in Nevada and California during the last three years. In a recent paper (Cerci et al, 1995) we discussed energy conservation opportunities related to compressors. In this paper we extend the discussions to other areas, and present economically attractive common sense measures such as (1) insulating hot and cold surfaces, (2) adjusting the air-fuel ratio in the furnaces, (3) installing programmable thermostats, (4) installing high efficiency fluorescent lamps, (5) installing occupancy sensors, (6) using reflective film on glazing, (7) improving the power factor, and (8) installing high efficiency motors. These measures are described in sufficient detail, and the energy and cost savings are analyzed and quantified. The typical potential savings from these measures are illustrated with examples taken from real-life applications. Our goal in this paper is not to present something new, but rather, to raise awareness and to show the tremendous energy and cost saving opportunities missed as a result of overlooking some simple and obvious conservation measures.

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