Heat Rate
Calculate the heat rate of a power plant, HR = 360000 ÷ η, dividing 360000 by the thermal efficiency in percent. The result, in kJ/kWh, is the fuel energy consumed to generate one kilowatt-hour of electricity — the inverse of efficiency expressed on an energy basis. It is the power-generation industry's standard metric: the lower the heat rate, the more efficient and economical the plant. A 40% efficiency equals 9000 kJ/kWh; modern combined-cycle plants reach ~6000 kJ/kWh. It lets you compare plants and estimate fuel use. Enter the thermal efficiency in percent.
Resultado
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Heat rate (regime térmico)
O heat rate (regime térmico) é o indicador favorito da indústria de geração de energia para falar de eficiência sem usar porcentagem: ele diz quanta energia de combustível a usina consome para entregar 1 kWh de eletricidade. É o inverso da eficiência, expresso em base de energia: HR = 360000 ÷ η, com η em porcentagem e o resultado em kJ/kWh (o 360000 vem de 3600 kJ por kWh multiplicado por 100 para tratar a eficiência percentual). A relação é inversa: quanto menor o heat rate, melhor — menos combustível por kWh significa usina mais eficiente e mais barata de operar. Os números contam a história da evolução tecnológica: 40% de eficiência equivalem a 9000 kJ/kWh (típico de uma termelétrica a vapor convencional); usinas de ciclo combinado modernas atingem ~6000 kJ/kWh (≈60%). O heat rate permite comparar usinas de tecnologias diferentes na mesma régua e estimar diretamente o consumo e o custo de combustível de uma central. Informe a eficiência térmica em porcentagem.
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The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.