V2EX heat-loss

Heat-loss

释义 Definition

heat-loss(常写作 heat loss):热量损失/散热损失,指热从较热的物体、系统或建筑中通过传导、对流、辐射等方式向外流失,从而导致温度下降或能效降低。(在工程与建筑语境中尤常见。)

发音 Pronunciation (IPA)

/hit ls/(美式常见)
/hit ls/(英式常见)

例句 Examples

The insulation reduces heat-loss in winter.
保温材料能减少冬季的热量损失。

To estimate the building’s heat-loss, engineers consider wall materials, window quality, ventilation, and outdoor temperature.
为了估算建筑的散热损失,工程师会考虑墙体材料、窗户质量、通风情况以及室外温度。

词源 Etymology

heat 源自古英语 htu,意为“热、热度”;loss 源自古英语 los,意为“损失、失去”。两者组合成复合表达 heat(-)loss,字面即“热的损失”,在热工、暖通(HVAC)与建筑节能领域中被固定用来描述能量(热)向环境逸散的现象与量化指标。

相关词 Related Words

文学与典籍 Literary Works

  • Fundamentals of Heat and Mass Transfer(Incropera 等):在传热章节中反复讨论 heat loss 的计算与机理。
  • Heat and Mass Transfer: Fundamentals & Applications(engel & Ghajar):用于说明通过墙体、管道与换热器的 heat loss
  • ASHRAE HandbookFundamentals(ASHRAE):建筑负荷计算部分常用 heat loss 描述冬季供暖热负荷与围护结构散热。
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