The Peltier module is a powerful tool for local cooling of small electronic equipment. However, when injecting Peltier-cooled air into PA (Power Amplifier) equipment, the risk of condensation increases along with the cooling effect. In this post, we will look at how condensation forms inside PA equipment when Peltier-cooled air is injected, based on simulation examples, and introduce key design points to prevent it. Condensation occurs when moisture in the air turns into water droplets on cold surfaces. If the cooled air drops below the dew point, water droplets will form on metal surfaces and circuit boards inside the equipment, potentially causing short circuits, corrosion, and insulation failure. Therefore, condensation simulation and dew point management are essential in the design of cooling air injection systems.     Simulation Conditions for Peltier-Cooled Air Injection Key conditions used in the simulation: Outdoor conditions : 28°C, 70% relat...

Condensation is a common phenomenon in our daily lives, and it becomes a major concern when operating electronic equipment or designing cooling systems. In this article, we will explore why condensation occurs, the scientific principle of the dew point, the conditions that cause condensation, and practical methods to prevent it in electronic equipment. Condensation happens when water vapor in the air turns into liquid droplets on a cold surface. This does not occur just because the surface is cold — the air’s temperature and humidity play crucial roles. When these two values reach a certain point, the air can no longer hold moisture as vapor, and condensation begins. This critical temperature is known as the dew point .     The Principle of Dew Point and Condensation Formation The dew point is the temperature at which air at a specific humidity and temperature reaches full saturation and starts to condense water vapor. For example, at 24°C with 60% humidity...