2024 psa dissipator chf The PSA dissipator is a compact, self-contained cooling solution that combines a PCM cold plate with a heat exchanger. The PCM is designed to change phase (from solid to liquid) at a specific temperature, absorbing and storing large amounts of heat during this process. This phase-change behavior allows the PSA to maintain a nearly constant temperature, even under high thermal loads, providing a stable thermal environment for sensitive electronics. The PCM used in PSA dissipators is typically a salt hydrate, such as sodium sulfide decahydrate (Na2S·10H2O), which has a melting point of approximately 32°C. This melting point is ideal for many electronic applications, as it ensures that the PCM remains in the solid state during normal operation, but quickly transitions to the liquid state when subjected to high thermal loads. The PSA dissipator consists of several key components: 1. PCM cold plate: The PCM cold plate is a flat, rectangular block made of copper or aluminum, with a series of channels machined into the surface. The PCM is contained within these channels, forming a thin, uniform layer that covers the entire surface of the cold plate. 2. Heat exchanger: The heat exchanger is a compact, high-performance device that is attached to the PCM cold plate. It typically consists of a series of thin, flat heat pipes that are bonded to the cold plate surface. These heat pipes transfer heat from the PCM to a remote heat sink or other cooling device, ensuring that the PCM remains at a nearly constant temperature. 3. Mounting bracket: The mounting bracket is a simple, lightweight frame that holds the PCM cold plate and heat exchanger in place. It is typically made of aluminum or plastic and is designed to be easily attached to the electronic device being cooled.
The PSA dissipator offers several advantages over traditional heat sinks: 1. Improved thermal performance: The phase-change behavior of the PCM allows the PSA to absorb and store large amounts of heat, providing a more stable thermal environment for sensitive electronics. 2. Reduced size and weight: The compact, self-contained design of the PSA dissipator allows it to be smaller and lighter than traditional heat sinks, making it ideal for applications where space and weight are at a premium. 3. Simplified installation: The PSA dissipator is easy to install, requiring only a few simple steps to attach it to the electronic device being cooled. 4. Lower cost: The PSA dissipator is typically less expensive than traditional heat sinks, making it an attractive option for cost-sensitive applications. The PCM used in PSA dissipators is typically a salt hydrate, such as sodium sulfide decahydrate (Na2S·10H2O), which has a melting point of approximately 32°C. This melting point is ideal for many electronic applications, as it ensures that the PCM remains in the solid state during normal operation, but quickly transitions to the liquid state when subjected to high thermal loads. The PSA dissipator consists of several key components: 1. PCM cold plate: The PCM cold plate is a flat, rectangular block made of copper or aluminum, with a series of channels machined into the surface. The PCM is contained within these channels, forming a thin, uniform layer that covers the entire surface of the cold plate.
1. Improved thermal performance: The phase-change behavior of the PCM allows the PSA to absorb and store large amounts of heat, providing a more stable thermal environment for sensitive electronics. 2. Reduced size and weight: The compact, self-contained design of the PSA dissipator allows it to be smaller and lighter than traditional heat sinks, making it ideal for applications where space and weight are at a premium. 3. Simplified installation: The PSA dissipator is easy to install, requiring only a few simple steps to attach it to the electronic device being cooled.
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