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  • Heat syncope


    Heat syncope is fainting or dizziness as a result of overheating (syncope is the medical term for fainting). It is a type of heat illness. The basic symptom of heat syncope is fainting, with or without mental confusion. Heat syncope is caused by peripheral vessel dilation, resulting in diminished blood flow to the heart and dehydration.

  • Internal combustion engine cooling


    Internal combustion engine cooling uses either air or liquid to remove the waste heat from an internal combustion engine. For small or special purpose engines, cooling using air from the atmosphere makes for a lightweight and relatively simple system. Watercraft can use water directly from the surrounding environment to cool their engines. For water-cooled engines on aircraft and surface vehicles, waste heat is transferred from a closed loop of water pumped through the engine to the surrounding atmosphere by a radiator. Water has a higher heat capacity than air, and can thus move heat more quickly away from the engine, but a radiator and pumping system add weight, complexity, and cost. Higher-power engines generate more waste heat, but can move more weight, meaning they are generally water-cooled. Radial engines allow air to flow around each cylinder directly, giving them an advantage for air cooling over straight engines, flat engines, and V engines. Rotary engines have a similar configuration, but the cylinders also continually rotate, creating an air flow even when the vehicle is stationary. Aircraft design more strongly favors lower weight and air-cooled designs.

  • Overheating


    Overheating may refer to: Overheating (economics), a rapid, very big growth of production that is thought to have a negative influence Overheating (electricity), unexpected rise of temperature in a portion of electrical circuit, that can cause harm to the circuit, and accidents Overheating (combinatorial game theory), an operation on combinatorial games that approximately reverses the effect of chilling Hyperthermia, also called sunstroke, an elevated body temperature due to failed thermoregulation Thermal shock, the overheating of a device leading to reduced efficiency, damage or even destruction

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