32 lines
1.1 KiB
Dart
32 lines
1.1 KiB
Dart
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/// energyNeededToHeatAParticularMaterial = tempDiff * specificHeatCapacity (measued in J/kg)
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/// we have some amount of energy e
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/// e / energyNeededToHeatAParticularMaterial => amount of material which can be heated (in kg)
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/// for H2H: 1 l = 1 kg
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double _kg(double energy, double specHeatCapacity, double tempDiff) {
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return energy / (tempDiff * specHeatCapacity);
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}
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/// Notes
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/// Eine PKW-Bremscheibe ca. 6.5kg
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/// LKW Actros: 34kg
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/// Calculates the amount of water in Liter that can be heated
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/// from 20°C to 100°C with the given [engergy] in Joule.
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///
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double literWaterThatCanBeBoiled(double energy) {
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const double specHeatCapaH2O = 4180; // J(kg*K)
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const double tempDiffH20 = 100 - 20; // K
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return _kg(energy, specHeatCapaH2O, tempDiffH20);
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}
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///
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/// Calculates the amount of iron in kg that can be heated
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/// from 20°C to ???°C with the given [engergy] in Joule.
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///
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double kgIronThatCanBeHeatetUntilRed(double energy) {
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const double specHeatCapaIron = 500; // J/(kg*K)
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const double tempDiffIron = 700 - 20; // K
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return _kg(energy, specHeatCapaIron, tempDiffIron);
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}
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