Characterization of a dry ice heat exchanger

Ilchi-Ghazaani, Maryam; Parvin, Parviz

doi:10.1016/j.ijrefrig.2011.02.015

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…They analyzed the size distribution and the produced dry ice amount for different conditions. 4 Ghazaani and Parvin 5 introduced a novel chilling system working with carbonic powder and the ethylene glycol mixture. The integrated system's works principle is based on the thermal exchange of liquid and solid CO 2 with lower energy consumption and higher refrigeration volume.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of dry ice cyclone separator for ultra‐low temperature energy storage using carbon dioxide

et al. 2020

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CO 2 cascade heat pump system has been developed to realize an ultra-low temperature below the triple point of 0.518 MPa and − 56.6 C or less by flowing dry ice solid-gas state of CO 2 in a refrigeration system. Solid CO 2 in the refrigeration system may cause to block the flow in the evaporation process and make the system operation failed. To overcome the blocking phenomena and farther challenging lower refrigeration temperature, the CO 2 cyclone separator was newly proposed instead of the conventional evaporator for ultra-low temperature energy storage. The basic characteristics of CO 2 dry ice cycle separator were investigated by constructing test rigs and visual experiments. The visualization tests were carried out by three type separators: nonswirling type separator, cylindrical, and conical type cyclone separators. The results of visualization test showed that the size of the dry ice particles gets bigger by coalescing together with the strong swirling flow in the cyclone separator. In comparison with three type separators, particularly by using the conical type cyclone separator, the amount of accumulation of dry ice at the bottom of the separator was increased as a result of the growth in dry ice particle size.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of dry ice cyclone separator for ultra‐low temperature energy storage using carbon dioxide

et al. 2020

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“…However, at moderate temperatures higher than ~-30 °C, a novel dry-ice chiller [60][61] is preferred. The practical scheme of a dry-ice heat exchanger being used as fast-cooling equipment for hot optical components is based on the cryogenic powder mixture using ethylene glycol to supply a high-capacity chilling bath, attaining thermal equilibrium for a long while.…”

Section: Fiber Lasermentioning

confidence: 99%

Heat Generation and Removal in Fiber Lasers

Eilchi¹,

Parvin²

2016

Fiber Laser

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The present chapter looks at heat generation and heat removal in fiber lasers, particularly if high-power or high-energy operation is required. In the context of the review, for the purpose of calculation of heat dissipation for different parts of the active gain media and providing effective cooling procedures, thermal loading as well as longitudinal and transverse temperature profiles of dual-clad fibers are comprehensively investigated both inside and outside of the doped fiber core. Considering numerical analysis, the heat deposited in the fiber due to pump and laser power is determined via the steady-state equations and also transient conductive, convective, as well as radiative heat transfer equations. Besides this, important features regarding how to mitigate thermal effects are stated. On the other hand, we will show that chilling mechanisms are very efficient methods for dissipating heat which is extensively adopted in high-power regimes. Finally, the concept of a cryogenic laser is discussed after propounding a novel cooling system, namely the dry-ice chiller.

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Chilling

2015

Seafood Chilling, Refrigeration and Freezing

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Characterization of a dry ice heat exchanger

Cited by 11 publications

References 9 publications

Experimental investigation of dry ice cyclone separator for ultra‐low temperature energy storage using carbon dioxide

Experimental investigation of dry ice cyclone separator for ultra‐low temperature energy storage using carbon dioxide

Heat Generation and Removal in Fiber Lasers

Chilling

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