Intermittent Freezing Concept for Energy Saving in Artificial Ground Freezing Systems

Food chilling and freezing technologies : Potential for energy saving

Numerical simulation of energy consumption of artificial ground freezing applications subject to water seepage

The energy consumption of artificial ground freezing applications results from the necessary (consumed) refrigeration capacity. The determination of the refrigeration capacity requires the numerical modeling of heat transfer processes within the freeze pipe. Therefore a new module has been implemented in the Finite Difference Program SHEMAT. An approach for calculating the heat transfer process...

Evaluation of freezing tolerance in olive cultivars by stomatal density and freezing stress

Selection of frost tolerant cultivars and understanding the mechanisms of frost hardiness could help to improve freezing resistance in olive plants. Olive cultivars may differ in frost hardiness due to differential survival of specific organs. The aim of this study was to screen different olive cultivars based on their stomatal density and metabolic modifications under cold conditions. The ‘Zar...

Martian post-impact hydrothermal systems incorporating freezing

0019-1035/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.icarus.2010.01.013 * Corresponding author. E-mail address: [email protected] (C.J. Barnhar We simulate the evolution of post-impact hydrothermal systems within 45 km and 90 km diameter craters on Mars. We focus on the effects of freezing, which alters the permeability structure and fluid flow compared with unfrozen cases. Discha...

Freezing in Ising ferromagnets.

We investigate the final state of zero-temperature Ising ferromagnets that are endowed with single-spin-flip Glauber dynamics. Surprisingly, the ground state is generally not reached for zero initial magnetization. In two dimensions, the system reaches either a frozen stripe state with probability approximately 1/3 or the ground state with probability approximately 2/3. In greater than two dime...