Traction elevators are hoisted by wire rope cables and hydraulic elevators are pushed by pressurized hydraulic fluid. Previous work published in IMEC2013-66663 presented methodologies for only traction elevator energy analysis. Many of the elevators in the USA are hydraulic. An objective and inclusive measurement methodology is needed for comparing energy efficiency of these two elevator systems for a valid cost benefit analysis. In this paper, the necessary requirements for a workable system for energy analysis are presented along with case study results. The previously presented elevator energy equations have evolved from simple kilogram-meters to watt-seconds for a more conventional energy analysis.
Developing a Methodology for Comparing the Energy Efficiency of Hydraulic and Traction Elevators
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Bos, J, Dell, R, Nemeth, B, Wei, CS, & Foley, W. "Developing a Methodology for Comparing the Energy Efficiency of Hydraulic and Traction Elevators." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 6A: Energy. Montreal, Quebec, Canada. November 14–20, 2014. V06AT07A020. ASME. https://doi.org/10.1115/IMECE2014-38384
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