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A gas engine working on the constant-volume eveleave the following results during a one-kaur test run. Cylinder diameter 24 cm; stroke 48 cm; torque 770 a verage speed 220 rpm; average explosion per minute 77: mep 7.5 DD 7volume of gas used 12 m at , 2 and 770 mm of mercury pressure; lower calorific value of gas 21 inlet and outlet temperature of cooling water are 25 °C and 60 °C respectively; cooling water used 600 kg. Determine (i) the mechanical efficiency (ii) the indicated Specific gas consumption in m³/kW h and (iii) the indicated thermal efmal y. 6m3 at NTP: Draw up a heat balance for the engine on minute basis., explaining why friction power has been included in or omitted from your heat balance. NTP conditions are 760 mm of Hg and 0 °C.

A gas engine working on the constant-volume eveleave the following results during a one-kaur test run. Cylinder diameter 24 cm; stroke 48 cm; torque 770 a verage speed 220 rpm; average explosion per minute 77: mep 7.5 DD 7volume of gas used 12 m at , 2 and 770 mm of mercury pressure; lower calorific value of gas 21 inlet and outlet temperature of cooling water are 25 °C and 60 °C respectively; cooling water used 600 kg. Determine (i) the mechanical efficiency (ii) the indicated Specific gas consumption in m³/kW h and (iii) the indicated thermal efmal y. 6m3 at NTP: Draw up a heat balance for the engine on minute basis., explaining why friction power has been included in or omitted from your heat balance. NTP conditions are 760 mm of Hg and 0 °C.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A gas engine working on the constant-volume eveleave the following results during a one-kaur test run. Cylinder diameter 24 cm; stroke 48 cm; torque 770 a verage speed 220 rpm; average explosion per minute 77: mep 7.5 DD 7volume of gas used 12 m at , 2 and 770 mm of mercury pressure; lower calorific value of gas 21 inlet and outlet temperature of cooling water are 25 °C and 60 °C respectively; cooling water used 600 kg. Determine (i) the mechanical efficiency (ii) the indicated Specific gas consumption in m³/kW h and (iii) the indicated thermal efmal y. 6m3 at NTP: Draw up a heat balance for the engine on minute basis., explaining why friction power has been included in or omitted from your heat balance. NTP conditions are 760 mm of Hg and 0 °C.
Transcribed Image Text:A gas engine working on the constant-volume eveleave the following results during a one-kaur test run. Cylinder diameter 24 cm; stroke 48 cm; torque 770 a verage speed 220 rpm; average explosion per minute 77: mep 7.5 DD 7volume of gas used 12 m at , 2 and 770 mm of mercury pressure; lower calorific value of gas 21 inlet and outlet temperature of cooling water are 25 °C and 60 °C respectively; cooling water used 600 kg. Determine (i) the mechanical efficiency (ii) the indicated Specific gas consumption in m³/kW h and (iii) the indicated thermal efmal y. 6m3 at NTP: Draw up a heat balance for the engine on minute basis., explaining why friction power has been included in or omitted from your heat balance. NTP conditions are 760 mm of Hg and 0 °C.
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