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Technical Physics Letters

, Volume 34, Issue 8, pp 718–721 | Cite as

Bistability in radiative heat exchange

  • V. I. Rudakov
  • V. V. OvcharovEmail author
  • V. P. Prigara
Article
  • 27 Downloads

Abstract

The possibility of a bistable regime in systems with radiative heat exchange is theoretically demonstrated for the first time. The transfer characteristics of a radiation-closed stationary system have been calculated, in which the radiator is a blackbody and the absorber is made of a material with the absorptivity sharply increasing in a certain temperature interval. The radiator and absorber are separated by a vacuum gap. The heat exchange between the system and the environment is controlled by varying the flow rate of a heat-transfer agent cooling the absorber. The output parameter of a bistable system is the absorber temperature, while the input parameter can be either the radiator temperature or the heat-transfer agent flow rate. Depending on the choice of the input parameter, the transfer characteristic of the system is either represented by a usual S-like curve or has an inverted shape.

PACS numbers

42.65.Pc 44.40.+a 61.82.Bg 

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Copyright information

© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  • V. I. Rudakov
    • 1
  • V. V. Ovcharov
    • 1
    Email author
  • V. P. Prigara
    • 1
  1. 1.Institute of Physics and TechnologyRussian Academy of SciencesYaroslavlRussia

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