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hybrid adiabatic compressed-air storage system is working. It is conšider charging-discharging is done on a daily basis. The energy stored in the off peak period is discharged in the mentioned peak period with constant output power. Some of the data is given as follows: Electric energy drawn from the,grid by the motor-pump is at an average power of 250 MW from 0:00 hrs to 6:00 hrs daily. Hybrid Energy stored in the storage is 980 MWh in the same off peak period per day. Efficiency of the Turbine-Generator discharging system is 75.01%.Daily peak period is 18:00 to 19:30 hrs. Q: Calculate the roundabout efficiency of the system: 63% 49% 75% 55%

hybrid adiabatic compressed-air storage system is working. It is conšider charging-discharging is done on a daily basis. The energy stored in the off peak period is discharged in the mentioned peak period with constant output power. Some of the data is given as follows: Electric energy drawn from the,grid by the motor-pump is at an average power of 250 MW from 0:00 hrs to 6:00 hrs daily. Hybrid Energy stored in the storage is 980 MWh in the same off peak period per day. Efficiency of the Turbine-Generator discharging system is 75.01%.Daily peak period is 18:00 to 19:30 hrs. Q: Calculate the roundabout efficiency of the system: 63% 49% 75% 55%

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A hybrid adiabatic compressed-air storage system is working. It is considered that the charging-discharging is done on a daily basis. The energy stored in the off peak period is discharged in the mentioned peak period with constant output power. Some of the data is given as follows: Electric energy drawn from the grid by the motor-pump is at an average power of 250 MW from 0:00 hrs to 6:00 hrs daily. Hybrid Energy stored in the storage is 980 MWh in the same off peak period per day. Efficiency of the Turbine-Generator discharging system is 75.01%.Daily peak period is 18:00 to 19:30 hrs. Q: Calculate the roundabout efficiency of the system: 63% 49% 75% 55%
Transcribed Image Text:A hybrid adiabatic compressed-air storage system is working. It is considered that the charging-discharging is done on a daily basis. The energy stored in the off peak period is discharged in the mentioned peak period with constant output power. Some of the data is given as follows: Electric energy drawn from the grid by the motor-pump is at an average power of 250 MW from 0:00 hrs to 6:00 hrs daily. Hybrid Energy stored in the storage is 980 MWh in the same off peak period per day. Efficiency of the Turbine-Generator discharging system is 75.01%.Daily peak period is 18:00 to 19:30 hrs. Q: Calculate the roundabout efficiency of the system: 63% 49% 75% 55%
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