fuel energy

What Affects Engine Efficiency?

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What Affects Engine Efficiency? The efficiency of internal combustion engines depends on several factors, the most important of which is the expansion ratio. For any heat engine the work which can be extracted from it is proportional to the difference between the starting pressure and the ending pressure during the expansion phase. What causes an

What Is The Largest Single Source Of Energy Used In The United States?

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What Is The Largest Single Source Of Energy Used In The United States? Petroleum is currently the largest single source of energy in the United States; it is used for, among other things, running vehicles, generating electricity and heating homes and businesses. What is the United States single largest user of energy? Air Force. The