Browsing by Author "Goodman J.W."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Effect on scaling of heat removal requirements in three-dimensional systems
    (1992) Ozaktas, H., M.; Oksuzoglu H.; Pease, R.F.W.; Goodman J.W.
    A first-order discussion of convective heat removal from a hypothetical 3-dimensional computing system is presented. A textbook treatment indicates that our heat removal capability can be characterized by a quantity Q, the amount of power we can remove per unit cross-section. Thus the minimum length of the system is proportional to the square root of the total power dissipated. We predict Q ∼ 104Wcm−2 assuming an applied pressure difference of 1 atm, a maximum temperature rise of 100K and the use of water as the coolant fluid. © 1992 Taylor & Francis Ltd.
  • Thumbnail Image
    ItemOpen Access
    The optimal electromagnetic carrier frequency balancing structural and metrical information densities with respect to heat removal requirements
    (1992) Özaktaş, Haldun M.; Goodman J.W.
    The use of higher electromagnetic carrier frequencies for communication in a computing results in both increased spatial information density and larger available modulation bandwidth. However, assuming that the communication energies are dissipated, the heat that must be removed from unit volume per unit time increases quickly with higher frequencies, resulting in a maximum useful frequency based on our limited ability to remove heat. We show that this frequency is relatively insensitive to system specific parameters and estimate its order of magnitude to lie near the infrared and visible bands of the spectrum. © 1992.