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Relationship between energy wheel speed and effectiveness and its transient response. I. Mathematical development of the characteristic time constants and their relationship with effectiveness.

Author(s) : ABE O. O., BESANT R. W., SIMONSON C. J., et al.

Summary

This paper investigates the theoretical feasibility of using transient response tests on a stationary energy wheel to determine the effectiveness of the same energy wheel rotating at a specified rate. In this paper, mathematical models for predicting first the characteristic time constants and, second, the effectiveness of an energy wheel are developed using only the expected transient response functions for the wheel. These time constants for sensible and latent (phase change) energy transient response are directly related to the corresponding sensible and latent effectiveness of an energy wheel operating at steady state at a specified rotor speed. It is concluded that it is feasible to use a simple transient parallel flow test on a stationary energy wheel and use these data to predict the sensible and latent effectiveness of the same energy wheel operating at a known speed. [Reprinted with permission from ASHRAE. Copyright, 2006]. See also this Bulletin, reference 2007-1233.

Details

  • Original title: Relationship between energy wheel speed and effectiveness and its transient response. I. Mathematical development of the characteristic time constants and their relationship with effectiveness.
  • Record ID : 2007-1232
  • Languages: English
  • Source: ASHRAE Transactions. 2006 Annual Meeting, Quebec City, Canada. Volume 112, part 2 + CD-ROM.
  • Publication date: 2006/06/25

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