03 // 双向 STEM 与金融计算器 // 流体、结构与电气工程计算器η (%) = (1 - T_C / T_H) × 100

卡诺热机最高理论效率计算器

根据 η_max = (1 - T_C / T_H) × 100 求解热机理论极限热效率、高温热源温度或低温冷源温度（开尔文）。

η (%) = (1 - T_C / T_H) × 100

选择要计算的未知量（或直接在任意输入框中输入数值）：当前求解: η (%) — Carnot Thermal Efficiency

Carnot Thermal Efficiency计算结果

Maximum theoretical work output per unit heat input (%)

199

Cold Reservoir Temperature (K)

Heat sink absolute temperature in Kelvin (27 °C = 300.15 K)

12,000.00

unit

Hot Reservoir Temperature (K)

Heat source absolute temperature in Kelvin

505,000.00

unit

计算结果 · Carnot Thermal Efficiency (η (%))

62.5

分步代入计算过程

01Canonical Law: η (%) = (1 - T_C / T_H) × 100

02Given Inputs (Base Units): T_C (K) = 300, T_H (K) = 800

03Solve for η (%) (Carnot Thermal Efficiency): η (%) = 62.5

Carnot's Theorem establishes the Second-Law thermodynamic upper bound on thermal efficiency η for any heat engine operating between a hot source at absolute temperature T_H and cold sink at T_C.

常见参考标准值

Combined-Cycle Gas Turbine (CCGT)62% – 64% Real Efficiency

T_H ≈ 1,700 K firing temperature (~82% Carnot limit)

Supercritical Steam Rankine Plant42% – 47% Real Efficiency

T_H ≈ 873 K (600 °C) steam conditions

Geothermal Binary ORC Plant10% – 16% Real Efficiency

Constrained by low T_H ≈ 420 K (150 °C) brine

20 行数值对照表

Carnot Thermal Efficiency (η (%)) · Cold Reservoir Temperature (K) (T_C (K))

对比变量：

Carnot Heat Engine Efficiency Calculator — Cold Reservoir Temperature (K) → Carnot Thermal Efficiency
#	Cold Reservoir Temperature (K) (T_C (K))	Carnot Thermal Efficiency (η (%))	Δ %
01	75.1125	90.6109	+44.98%
02	101.4151	87.3231	+39.72%
03	127.7178	84.0353	+34.46%
04	154.0204	80.7475	+29.20%
05	180.323	77.4596	+23.94%
06	206.6257	74.1718	+18.67%
07	232.9283	70.884	+13.41%
08	259.2309	67.5961	+8.15%
09	285.5336	64.3083	+2.89%
10	300 当前	62.5	0.00%
11	338.1388	57.7326	-7.63%
12	364.4414	54.4448	-12.89%
13	390.7441	51.157	-18.15%
14	417.0467	47.8692	-23.41%
15	443.3493	44.5813	-28.67%
16	469.652	41.2935	-33.93%
17	495.9546	38.0057	-39.19%
18	522.2572	34.7178	-44.45%
19	548.5599	31.43	-49.71%
20	574.8625	28.1422	-54.97%

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常见问题解答 (FAQ)

如何使用在线卡诺热机最高理论效率计算器工具？+

输入已知参数或拖动滑块，即可在浏览器中实时计算并可视化卡诺热机最高理论效率计算器（基于关系式 η (%) = (1 - T_C / T_H) × 100）。根据 η_max = (1 - T_C / T_H) × 100 求解热机理论极限热效率、高温热源温度或低温冷源温度（开尔文）。

可以导出或打印卡诺热机最高理论效率计算器的结果吗？+

可以。支持一键复制数据、打印计算工作表或导出高清 SVG、PNG 和 CSV 文件。

我可以清空卡诺热机最高理论效率计算器中的示例数据并从空白状态开始吗？+

可以。点击工具顶部的“清空 / 空白开始”按钮即可重置所有输入项，随时也可一键重新加载示例数据。