V2EX dry-bulb temperature

Dry-bulb Temperature

定义 / Definition

干球温度:用普通温度计(球部干燥、未包湿布)在空气中测得的环境空气温度。它反映空气的“实际温度”,不直接包含湿度影响(与湿球温度相对)。在暖通空调(HVAC)与气象中常用作基础参数。

发音 / Pronunciation (IPA)

/dra blb tmprtr/

例句 / Examples

The dry-bulb temperature is 25°C today.
今天的干球温度是25°C。

In psychrometric calculations, dry-bulb temperature is used with relative humidity or wet-bulb temperature to determine enthalpy and moisture content of air.
在湿空气(心理)计算中,干球温度常与相对湿度或湿球温度一起使用,用来求空气的焓值和含湿量。

词源 / Etymology

dry-bulb 字面意思是“干的玻璃球(温度计球部)”。早期温度计的感温端是一个小玻璃球;为了区分球部保持干燥的测量方式与用湿布包裹球部的湿球测量,于是形成了 dry-bulb temperature(干球温度)wet-bulb temperature(湿球温度) 这对术语。

相关词 / Related Words

文献与作品举例 / Notable Works

  • ASHRAE HandbookFundamentals(美国采暖、制冷与空调工程师学会《基础手册》;心理图与干球温度定义/应用)
  • Psychrometrics 相关经典教材与章节(如暖通空调工程教材中的“湿空气性质/心理图”部分)
  • WMO(世界气象组织)气象观测指南与手册相关内容(涉及气温测量规范与术语体系中与干球温度相近的测温概念)
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