Question
ESTION 5
In car engines, write out what SI stands for.
A four-stroke 2 -cylinder internal combustion engine running at the spee
of 240 r/min, has a bore and stroke length of
The engine develops a brake torque of
efficiency is 0,85 . The air-fuel ratio by volume is
has a calorific value of
Calculate:
In car engines, write out what SI stands for.
A four-stroke 2 -cylinder internal combustion engine running at the spee
of 240 r/min, has a bore and stroke length of
The engine develops a brake torque of
efficiency is 0,85 . The air-fuel ratio by volume is
has a calorific value of
Calculate:
Ask by Blake Chambers. in South Africa
Dec 06,2024
Upstudy AI Solution
Tutor-Verified Answer
Answer
- 5.2.1 The engine’s brake power is approximately 1,011.5 kW.
- 5.2.2 The mean speed of the engine’s pistons is approximately 7.54 m/s.
- 5.2.3 The engine’s swept volume per second is approximately 16.56 m³/s.
- 5.2.4 The engine’s induced volume per second is approximately 16.53 m³/s.
- 5.2.5 The brake thermal efficiency is calculated based on the given data.
Solution
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Beyond the Answer
In car engines, SI stands for “Standard International,” which refers to the International System of Units. This system is crucial for engineering calculations as it provides a consistent framework for measurements like length, mass, time, and energy, ensuring precision across various applications and fields.
For a fun historical tidbit, the development of the internal combustion engine can be traced back to the late 17th century! Early inventors like Christiaan Huygens were experimenting with gunpowder engines, but it wasn’t until the 19th century that real advancements were made, leading to the engines we know today. So, every time you rev up that engine, you’re experiencing centuries of innovation!
