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E. A. G. Schuur, J. G. Vogel, K. G. Crummer, H. Lee, J. O. Sickman and T. E. Osterkamp, “The Effect of Permafrost Thaw on Old Carbon Release and Net Carbon Exchange from Tundra,” Nature, Vol. 459, No. 7246, 2009, pp.556-559. doi:10.1038/nature08031

has been cited by the following article:

• TITLE: Behaviour of Thermodynamic Models with Phase Change Materials under Periodic Conditions

  AUTHORS: A. C. Sparavigna, S. Giurdanella, M. Patrucco

  KEYWORDS: Thermodynamics, Heat Exchange, Lumped Volume Models

  JOURNAL NAME: Energy and Power Engineering, Vol.3 No.2, May 18, 2011

  ABSTRACT: We study the thermal behaviour of some models in a steady periodic regime. The aim is to simulate the be-haviour of small environments at the outermost part of our planet, subjected to the periodic solar radiation. Our approach is based on a method using lumped elements or volumes that simplifies the description of spa-tially distributed physical systems, through a topology consisting of discrete entities. Our models include some parts acting as energy storage systems, made with Phase Change Materials (PCMs). The storage is based on latent heats: the energy is stored during the melting and recovered during the solidification of the PCM substance. The simulation with lumped elements shows some interesting behaviours of temperatures.