Index / Sheet list

Engineering guides

Thermodynamics & fluid mechanics

The difficult concepts made clear, each with a diagram and a solved problem worked through to the answer.

The first law of thermodynamics explained with solved problems

Energy is never created or destroyed, only moved as heat and work. Here is what that means for closed and open systems, with two problems solved step by step.4 min read

Heat transfer fundamentals: conduction, convection and radiation

The three ways heat moves, the formula for each, and how thermal resistances add up through a wall, with a step-by-step insulated wall problem and a radiation example.4 min read

Otto and Diesel cycles explained with solved problems

How petrol and diesel engines turn heat into work, the ideal cycles behind them, their efficiency formulas, and two problems solved step by step.5 min read

Bernoulli's equation explained with a solved numerical

What Bernoulli's equation says about pressure, speed and height in a moving fluid, when it applies, and two problems solved step by step to a final answer with units.4 min read

Reynolds number and fluid flow: laminar vs turbulent

What the Reynolds number measures, how it predicts laminar or turbulent flow, why that changes friction and pressure loss, and two flow problems solved step by step.4 min read

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