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2024
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06
Which aluminum rod or iron rod is faster to conduct heat?
In practical applications, aluminum rods are widely used in occasions where efficient heat transfer is required due to their excellent thermal conductivity, such as radiators, heat exchangers and heat conductors.
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Aluminum rods conduct heat faster than iron rods. The thermal conductivity of aluminum is about 237 W/(m·K), while the thermal conductivity of iron is about 80 W/(m·K), which means that under the same conditions, aluminum can transfer heat to the surrounding area faster. environment. In addition, aluminum has a smaller heat capacity than iron, which is about 0.9 J/(g·K), while iron has a heat capacity of about 0.45 J/(g·K), which means that the same mass of aluminum requires less than iron The heat is used to raise the temperature, so aluminum can absorb heat faster and transfer it to the surrounding environment.
In practical applications, aluminum rods are widely used in occasions where efficient heat transfer is required due to their excellent thermal conductivity, such as radiators, heat exchangers and heat conductors. In contrast, iron rods are relatively few in these fields, mainly limited by their thermal conductivity. However, iron rods may be more suitable in certain high load occasions because iron has higher strength and hardness and can withstand greater pressure and wear. In addition, the cost is also a factor that cannot be ignored, and aluminum is usually higher than iron, so iron rods may become a more economical option under limited budgets.
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