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Home Question Bank Engineering Archive 2024 December 06

Engineering Questions from Dec 06,2024

Browse the Engineering Q&A Archive for Dec 06,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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In car engines, write out what \( S / \) stands for. A four-stroke 2 -cylinder internal combustion engine running at the sp of \( 240 \mathrm{r} / \mathrm{min} \), has a bore and stroke length of \( 0,380 \mathrm{~m} \) and \( 0,585 \mathrm{~m} \) respectiv The engine develops a brake torque of \( 11,860 \mathrm{kNm} \), while the volume efficiency is 0,85 . The air-fuel ratio by volume is \( 7: 1 \). The fuel used in this ens has a calorific value of \( 38600 \mathrm{~kJ} / \mathrm{m}^{3} \). Calculate: 5.2.1 The engine's brake power in kW 5.2.2 The mean speed of the engine's pistons in \( \mathrm{m} / \mathrm{s} \) 5.2.3 The engine's swept volume in \( \mathrm{m}^{3} / \mathrm{s} \) i.2.4 The engine's induced volume in \( \mathrm{m}^{3} / \mathrm{s} \) 2.5 The brake thermal efficiency b) Beregn effekten til motoren. ( \( 30 \% \) ) Svar: For å beregne effekten til motoren kan vi bruke formelen. 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 \( 0,380 \mathrm{~m} \) and \( 0,585 \mathrm{~m} \) respectivel The engine develops a brake torque of \( 11,860 \mathrm{kNm} \), while the volumetr efficiency is 0,85 . The air-fuel ratio by volume is \( 7: 1 \). The fuel used in this engir has a calorific value of \( 38600 \mathrm{~kJ} / \mathrm{m}^{3} \). Calculate: \( 5.2 .1 \quad \) The engine's brake power in kW \( 5.2 .2 \quad \) The mean speed of the engine's pistons in \( \mathrm{m} / \mathrm{s} \) \( 5.2 .3 \quad \) The engine's swept volume in \( \mathrm{m}^{3} / \mathrm{s} \) \( 5.2 .4 \quad \) The engine's induced volume in \( \mathrm{m}^{3} / \mathrm{s} \) \( 5.2 .5 \quad \) The brake thermal efficiency In car engines, write out what SI stands for. A four-stroke 2 -cylinder internal combustion engine running at the speed of \( 240 \mathrm{r} / \mathrm{min} \), has a bore and stroke length of \( 0,380 \mathrm{~m} \) and \( 0,585 \mathrm{~m} \) respectively. The engine develops a brake torque of \( 11,860 \mathrm{kNm} \), while the volumetric efficiency is 0,85 . The air-fuel ratio by volume is \( 7: 1 \). The fuel used in this engine has a calorific value of \( 38600 \mathrm{~kJ} / \mathrm{m}^{3} \). Calculate: 5.2.1 The engine's brake power in kW 5.2.2 The mean speed of the engine's pistons in \( \mathrm{m} / \mathrm{s} \) 5.2 The engine's swept volume in \( \mathrm{m}^{3} / \mathrm{s} \) \( 5.2 \quad \) The engine's induced volume in \( \mathrm{m}^{3} / \mathrm{s} \) \( 5.2 .5 \quad \) The brake thermal efficiency
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