🌡️ 热力学工具🌡️ Thermodynamics Tools

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🌡️ 热力学工具🌡️ Thermodynamics Tools

共 28个免费在线工具

等熵压缩功计算器Compressor Isentropic Work理想气体单位质量等熵压缩功Compressor Isentropic Work 牛顿冷却时间计算器Newton Cooling输入初温 T₀、环境温度 T∞、冷却时间常数 k 与经过时间 t，按集总参数法计算当前温度，用于物体降温、淬火与食品冷却过程预测。Temperature decay by the lumped capacitance method over time 对数平均温差计算器Lmtd Heat Exchanger输入换热器两端的温差 ΔT₁ 与 ΔT₂，计算对数平均温差 LMTD，用于管壳式与板式换热器的平均传热温差与换热量估算。Log mean temperature difference from the two end temperatures 比热比 γ 计算器Cp Cv Ratio输入定压比热 c_p 与气体常数 R，计算定容比热 c_v 及比热比 γ=c_p/c_v，用于理想气体热力学性质与过程功计算前的参数准备。Cp Cv Ratio 对流换热率计算器Convective Heat Rate输入表面传热系数 h、换热面积 A 与壁面-流体温差 ΔT，按牛顿冷却定律计算对流换热功率 Q̇，用于散热器与换热器热流评估。Convective Heat Rate 盖-吕萨克定律计算器Gay Lussac Law盖-吕萨克定律计算器：在恒容下由 P₁/T₁ = P₂/T₂ 由已知状态求另一状态压力或温度，用于封闭气体计算。Gay-Lussac's law P₁/T₁ = P₂/T₂ at constant volume for a fixed amount of gas 湿空气焓计算器Humid Air Enthalpy湿空气焓（h = 1.006t + w(2501 + 1.86t)）Moist air enthalpy h = 1.006t + w(2501 + 1.86t) 毕渥数计算器Biot Number输入表面传热系数 h、特征长度 L 与材料导热系数 k，计算毕渥数 Bi，据此判断物体是否满足集总参数法（Bi<0.1），用于瞬态导热近似分析。Biot Number 格拉晓夫数计算器Grashof Number输入重力加速度 g、体膨胀系数 β、温差 ΔT、特征长度 L 与运动黏度 ν，按 Gr=g·β·ΔT·L³/ν² 计算自然对流驱动力无量纲数。Grashof number Gr = g·β·ΔT·L³/ν², the driving force of natural convection 理想气体压强计算器Ideal Gas Pressure理想气体压强（P = nRT / V）Gas pressure from the ideal gas law: P = nRT / V 傅里叶数计算器Fourier Number输入热扩散率 α、时间 t 与特征长度 L，计算傅里叶数 Fo=α·t/L²，用于判断瞬态导热的进程阶段与无量纲时间尺度比较。Dimensionless Fourier number Fo = α·t / L² for transient conduction 熵产计算器Entropy Generation输入系统熵变与热源（环境）熵变，计算总熵产 S_gen，验证是否 ≥0 以判定过程方向性与不可逆损失，用于孤立系统熵分析。Total entropy generation from system and surroundings changes 相变潜热计算器Latent Heat输入物质质量 m 与相变潜热 L，计算熔化或汽化过程吸收或释放的热量 Q=m·L，用于制冷、蒸汽与相变储能的热量核算。Latent heat Q = m·L for melting or vaporising a mass 查尔斯定律计算器Charles Law查尔斯定律计算器：在恒压下由 V₁/T₁ = V₂/T₂ 由已知状态求另一状态体积或温度，用于气体热膨胀计算。Apply Charles law to volume and temperature 玻意耳定律计算器Boyles Law玻意耳定律计算器：在恒温下由 P₁V₁ = P₂V₂ 由已知状态求另一状态的压力或体积，用于理想气体状态计算。Apply Boyle law to pressure and volume 等温膨胀功计算器Isothermal Work等温膨胀功（W = nRT·ln(V₂/V₁)）Isothermal expansion work W = nRT·ln(V₂/V₁) for an ideal gas 傅里叶导热计算器Heat Conduction导热速率（q = k·A·ΔT / L）Compute steady state heat conduction rate from conductivity, area and thickness 可逆熵变计算器Entropy Change熵变（ΔS = Q_rev / T）Entropy change ΔS = Q_rev / T for a reversible process 斯特藩-玻尔兹曼辐射计算器Stefan Boltzmann辐射功率（P = ε·σ·A·T⁴）Radiant power P = ε·σ·A·T⁴ from emissivity, area and absolute temperature 热力学第一定律计算器First Law内能变化（ΔU = Q − W）Compute internal energy change from heat added and work done by the system 线性热膨胀计算器Linear Expansion线膨胀（ΔL = α·L₀·ΔT）Linear expansion ΔL = α·L₀·ΔT, for thermal clearance design 多变过程功计算器Polytropic Work多方指数 n 过程的体积功Compute polytropic process work from pressures, volumes and the polytropic index 奥托循环效率计算器Otto Efficiency理想汽油机（定容加热）热效率Ideal Otto cycle efficiency from compression ratio and γ 比热容热量计算器Specific Heat Q显热（Q = m·c·ΔT）Sensible heat Q = m·c·ΔT for heating or cooling a mass 狄塞尔循环效率计算器Diesel Efficiency理想柴油机（定压加热）热效率Ideal diesel cycle efficiency from compression ratio, cutoff ratio and γ 换热器选型计算换热器选型计算器依据对数平均温差（LMTD）法，根据热流量、冷热流体进出口温度与总传热系数，计算逆流或顺流布置下的 LMTD 与所需换热面积，辅助换热器初步选型。 R = L / (k·A)（串联相加）R = L / ( k · A )输入两层材料的厚度、导热系数与共同面积，计算各层热阻与串联总热阻，并求得给定总温差下的稳态热流，用于复合墙体保温设计。Thermal Resistance Series is a T·V^(γ−1) = 常数T · V ^(γ− 1 ) = Constant理想气体可逆绝热过程温度-体积关系T · V ^(γ− 1 ) = Constant
📖关于「热力学工具」About Thermodynamics Tools▼

📝栏目简介

热力学工具集合收录了 28 个免费在线工具，覆盖热力学场景下的常见计算、换算与查询需求。无论你是相关领域的从业者、学生还是普通用户，都能在这里找到即用即走的实用小工具。所有工具纯前端运行，数据不上传服务器，保护隐私安全。This collection gathers 28 free online Thermodynamics tools for everyday calculations, conversions and lookups. Whether you are a professional, a student or a casual user, you will find handy tools you can use right away. Everything runs client-side — no data is uploaded.

✨核心功能与适用场景

本页收录的热力学工具包括（部分代表工具）：Featured Thermodynamics tools on this page include:

  • 等熵压缩功计算器Compressor Isentropic Work
  • 对数平均温差计算器Lmtd Heat Exchanger
  • 比热比 γ 计算器Cp Cv Ratio
  • 盖-吕萨克定律计算器Convective Heat Rate
  • 湿空气焓计算器Humid Air Enthalpy
  • 格拉晓夫数计算器Grashof Number
  • 理想气体压强计算器Ideal Gas Pressure
  • 熵产计算器Fourier Number
  • 相变潜热计算器Latent Heat
  • 玻意耳定律计算器Boyles Law
  • 傅里叶导热计算器Isothermal Work
  • 可逆熵变计算器Heat Conduction
  • 热力学第一定律计算器Stefan Boltzmann
  • 线性热膨胀计算器Linear Expansion
  • 奥托循环效率计算器Polytropic Work
  • 比热容热量计算器Otto Efficiency
  • 换热器选型计算Diesel Efficiency
  • R = L / (k·A)（串联相加）T · V ^(γ− 1 ) = Constant

这些工具帮助你快速完成热力学相关的常见任务，无需记忆复杂公式或手动换算，输入即可得结果。These tools help you complete Thermodynamics tasks quickly — no formulas to memorise and no manual conversion, just enter your values and get the result.

❓常见问题

热力学分类下的工具需要下载或注册吗？Do Thermodynamics tools require any download or sign-up?

不需要。本页 28 个热力学工具（如等熵压缩功计算器、对数平均温差计算器、比热比 γ 计算器、盖-吕萨克定律计算器、湿空气焓计算器、格拉晓夫数计算器）都是纯前端页面，打开网页即可使用，无需安装软件、无需注册账号；输入的数据只在你的浏览器内处理，不会上传服务器。No. The 28 Thermodynamics tools on this page (including Compressor Isentropic Work, Lmtd Heat Exchanger, Cp Cv Ratio, Convective Heat Rate, Humid Air Enthalpy, Grashof Number) are pure front-end pages: just open them and start using. No software to install, no account needed, and anything you enter is processed inside your browser — never uploaded.

热力学工具的结果能直接用于医疗、法律或财务决策吗？Can the results be used directly for medical, legal or financial decisions?

不能直接作为决策依据。本页工具多为通用计算、换算与查询，结果仅供日常参考；涉及诊断、诉讼、投资、工程验收等专业场景，请以权威标准、原始仪器读数或持证专业人士的结论为准。所有运算都在本地完成，数据不上传。No — treat them as everyday references only. Most tools here are general-purpose calculators, converters and lookups; for diagnosis, litigation, investment or engineering acceptance, rely on authoritative standards, raw instrument readings or a licensed professional. Everything is computed locally and nothing is uploaded.