전력공학
화력발전
열효율
2015.5 기출
발전량 E[kWh], 연료 W[kg], 발열량 C[kcal/kg] 화력발전소 열효율은?
- ① \(\frac{860E}{WC}\times100\) 정답
- ② \(\frac{WC}{860E}\times100\)
- ③ \(\frac{E}{WC}\times100\)
- ④ \(\frac{860WC}{E}\times100\)
📖 해설
화력발전 열효율
\[ \eta=\frac{860W}{BH}\times100\,[\%] \](W:kWh, B:연료kg, H:발열량kcal/kg, 1kWh=860kcal)
풀이
\(\eta=\dfrac{860E}{WC}\times100\,[\%]\)(1kWh=860kcal).
\[ \eta=\frac{860W}{BH}\times100\,[\%] \](W:kWh, B:연료kg, H:발열량kcal/kg, 1kWh=860kcal)
풀이
\(\eta=\dfrac{860E}{WC}\times100\,[\%]\)(1kWh=860kcal).