public void Powerequation()
{
//Q = m * Cp * dT
//obs - UnitsNet cant do this eq..
EngineeringUnits.SpecificEntropy P1 = new EngineeringUnits.SpecificEntropy(1, EngineeringUnits.SpecificEntropyUnit.JoulePerKilogramKelvin);
EngineeringUnits.MassFlow M1 = new EngineeringUnits.MassFlow(1, EngineeringUnits.MassFlowUnit.KilogramPerSecond);
EngineeringUnits.Temperature T2 = new EngineeringUnits.Temperature(10, EngineeringUnits.TemperatureUnit.DegreeCelsius);
EngineeringUnits.Temperature T1 = new EngineeringUnits.Temperature(5, EngineeringUnits.TemperatureUnit.DegreeCelsius);
EngineeringUnits.Power Q1 = M1 * P1 * (T2 - T1);
UnitsNet.SpecificEntropy p1 = new UnitsNet.SpecificEntropy(1, UnitsNet.Units.SpecificEntropyUnit.JoulePerKilogramKelvin);
UnitsNet.MassFlow m1 = new UnitsNet.MassFlow(1, UnitsNet.Units.MassFlowUnit.KilogramPerSecond);
UnitsNet.Temperature t2 = new UnitsNet.Temperature(10, UnitsNet.Units.TemperatureUnit.DegreeCelsius);
UnitsNet.Temperature t1 = new UnitsNet.Temperature(5, UnitsNet.Units.TemperatureUnit.DegreeCelsius);
UnitsNet.Power q1 = UnitsNet.Power.FromWatts(p1.JoulesPerKilogramKelvin * m1.KilogramsPerSecond * (t2.Kelvins - t1.Kelvins));
Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.BritishThermalUnitPerHour) - q1.As(UnitsNet.Units.PowerUnit.BritishThermalUnitPerHour), 7.2E-05);
Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.Kilowatt) - q1.As(UnitsNet.Units.PowerUnit.Kilowatt), 0);
Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.Watt) - q1.As(UnitsNet.Units.PowerUnit.Watt), 0);
}
public void Powerequation2()
{
//Q = m * Cp * dT
//obs - UnitsNet cant do this eq..
EngineeringUnits.SpecificEntropy P1 = new EngineeringUnits.SpecificEntropy(35345, EngineeringUnits.SpecificEntropyUnit.BtuPerPoundRankine);
EngineeringUnits.MassFlow M1 = new EngineeringUnits.MassFlow(4356, EngineeringUnits.MassFlowUnit.PoundPerMinute);
EngineeringUnits.Temperature T2 = new EngineeringUnits.Temperature(342, EngineeringUnits.TemperatureUnit.DegreeRankine);
EngineeringUnits.Temperature T1 = new EngineeringUnits.Temperature(43, EngineeringUnits.TemperatureUnit.DegreeRankine);
EngineeringUnits.Power Q1 = M1 * P1 * (T2 - T1);
UnitsNet.SpecificEntropy p1 = new UnitsNet.SpecificEntropy(35345, UnitsNet.Units.SpecificEntropyUnit.BtuPerPoundFahrenheit);
UnitsNet.MassFlow m1 = new UnitsNet.MassFlow(4356, UnitsNet.Units.MassFlowUnit.PoundPerMinute);
UnitsNet.Temperature t2 = new UnitsNet.Temperature(342, UnitsNet.Units.TemperatureUnit.DegreeRankine);
UnitsNet.Temperature t1 = new UnitsNet.Temperature(43, UnitsNet.Units.TemperatureUnit.DegreeRankine);
UnitsNet.Power q1 = UnitsNet.Power.FromWatts(p1.JoulesPerKilogramKelvin * m1.KilogramsPerSecond * (t2.Kelvins - t1.Kelvins));
//BtuPerPoundFahrenheit-- > JoulePerKilogramKelvin
//UnitsNet: 4186,8
//EngineeringUnits: 4186,816458133984
//UnitsNet dont not use a high precision for this conversion which gives a off result
//Difference in procent
Assert.AreEqual(0, HelperClass.Percent(P1.As(EngineeringUnits.SpecificEntropyUnit.JoulePerKilogramKelvin),
p1.As(UnitsNet.Units.SpecificEntropyUnit.JoulePerKilogramKelvin)), 0.0004);
Assert.AreEqual(0, HelperClass.Percent(P1.As(EngineeringUnits.SpecificEntropyUnit.BtuPerPoundRankine),
p1.As(UnitsNet.Units.SpecificEntropyUnit.BtuPerPoundFahrenheit)), 0);
Assert.AreEqual(0, HelperClass.Percent(M1.As(EngineeringUnits.MassFlowUnit.KilogramPerSecond),
m1.As(UnitsNet.Units.MassFlowUnit.KilogramPerSecond)), 0.0003);
//Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.BritishThermalUnitPerHour) - q1.As(UnitsNet.Units.PowerUnit.BritishThermalUnitPerHour), 0);
//Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.Kilowatt) - q1.As(UnitsNet.Units.PowerUnit.Kilowatt), 0);
//Assert.AreEqual(0, Q1.As(EngineeringUnits.PowerUnit.Watt) - q1.As(UnitsNet.Units.PowerUnit.Watt), 0);
//Difference in procent
Assert.AreEqual(0, HelperClass.Percent(Q1.As(EngineeringUnits.PowerUnit.BritishThermalUnitPerHour),
q1.As(UnitsNet.Units.PowerUnit.BritishThermalUnitPerHour)), 0.0003);
Assert.AreEqual(0, HelperClass.Percent(Q1.As(EngineeringUnits.PowerUnit.Kilowatt),
q1.As(UnitsNet.Units.PowerUnit.Kilowatt)), 0.00013);
Assert.AreEqual(0, HelperClass.Percent(Q1.As(EngineeringUnits.PowerUnit.Watt),
q1.As(UnitsNet.Units.PowerUnit.Watt)), 0.00013);
}