The following readings were taken during a 60-min test at steady load of 360 rpm Diesel engine-generator unit rated at 650 kW. Initial fuel meter reading, 14.0154 m³ and final 14.1811 m³. Initial watthour meter, 86,547 kW-hr; final 87,002 kW-hr. Average temperatures: atmosphere, 4.4'C; fuel, 15.6°C; exhaust gas, 416.7°C; cooling water in, 46.1 C; out, 61.1 C. Water flow, 549 L/min. S.G. of fuel by hydrometer, 0.905. A:F ratio, 22:1. Calculate a five-element heat balance, including electrical losses as one item. Use NEMA efficiency data and Table 6-3.
The following readings were taken during a 60-min test at steady load of 360 rpm Diesel engine-generator unit rated at 650 kW. Initial fuel meter reading, 14.0154 m³ and final 14.1811 m³. Initial watthour meter, 86,547 kW-hr; final 87,002 kW-hr. Average temperatures: atmosphere, 4.4'C; fuel, 15.6°C; exhaust gas, 416.7°C; cooling water in, 46.1 C; out, 61.1 C. Water flow, 549 L/min. S.G. of fuel by hydrometer, 0.905. A:F ratio, 22:1. Calculate a five-element heat balance, including electrical losses as one item. Use NEMA efficiency data and Table 6-3.
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Transcribed Image Text:The following readings were taken during a 60-min test at steady load of 360 rpm
Diesel engine-generator unit rated at 650 kW. Initial fuel meter reading, 14.0154 m³
and final 14.1811 m³. Initial watthour meter, 86,547 kW-hr; final 87,002 kW-hr.
Average temperatures: atmosphere, 4.4'C; fuel, 15.6°C; exhaust gas, 416.7°C;
cooling water in, 46.1 C; out, 61.1 C. Water flow, 549 L/min. S.G. of fuel by
hydrometer, 0.905. A:F ratio, 22:1. Calculate a five-element heat balance, including
electrical losses as one item. Use NEMA efficiency data and Table 6-3.
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