Ad
related to: phase change material for cooling system
Search results
Results From The WOW.Com Content Network
A phase-change material (PCM) is a substance which releases/absorbs sufficient energy at phase transition to provide useful heat or cooling. Generally the transition will be from one of the first two fundamental states of matter - solid and liquid - to the other. The phase transition may also be between non-classical states of matter, such as ...
Single-phase immersion uses a circulation method for the dielectric liquid across hot electronic components and to a heat exchanging approach. A single-phase fluid does not boil or undergo a phase change at any time during the cooling process. Two-phase immersion leverages the heat-absorbing phase change from liquid to gas [3]. It uses ...
Computational Fluid Dynamics (CFD) modeling and simulation for phase change materials (PCMs) is a technique used to analyze the performance and behavior of PCMs. The CFD models have been successful in studying and analyzing the air quality, natural ventilation and stratified ventilation, air flow initiated by buoyancy forces and temperature space for the systems integrated with PCMs.
Phase-change cooling is an extremely effective way to cool the processor. A vapor compression phase-change cooler is a unit that usually sits underneath the PC, with a tube leading to the processor. Inside the unit is a compressor of the same type as in an air conditioner. The compressor compresses a gas (or mixture of gases) which comes from ...
The phase change effect can be intentionally used, or can be detrimental. Phase-change materials use the other phase transition between solid and liquid. Liquid gases may fall here, or into refrigerants, as their temperature is often maintained by evaporation. Liquid nitrogen is the best known example encountered in laboratories.
This effect arises primarily due to a change in the material's entropy. The change in entropy is often linked to a phase transition or the reorientation of the material's crystalline structure. Shape memory alloys (SMAs) have the elastocaloric effect. This effect is closely connected to the reversible phase transition between different crystal ...
These have been investigated for many applications, including cooling photovoltaic panels, [42] cooling electronic devices, [43] heat recovery systems, fuel cell systems, [44] [45] HVAC systems, [46] and desalination. [47] More and more, PHPs are synergistically combined with phase change materials. [43] [47]
Ionocaloric heating/cooling utilizes the ionocaloric effect within an appropriate thermodynamic cycle (e.g. Reverse Carnot or Stirling cycle). Ionocaloric cooling works by surrounding a solid phase with ions (i.e. applying an electrochemical field to the solid), which makes the solid more stable as a liquid .