/// <summary>
/// Вычисляет температуру кипения жидкой смеси.
/// </summary>
/// <param name="Mix">Объект, описывающий жидкую смесь.</param>
/// <returns>Возвращает значение температуры кипения жидкой смеси в градусах Цельсия в зависимости от давления и состава.</returns>
public static double BoilingPointMix(LiquidMix mix)
{
var table =
Database.Query(
String.Format(
"SELECT x,boiling_point FROM boiling_points_from_composition WHERE id1='{0}' AND id2='{1}' AND pressure={2}",
mix.LB.Id, mix.HB.Id, mix.Pressure));
var data = table.Select(list => list.ConvertAll(Convert.ToDouble)).ToList();
return LinearInterpolation(data, (1-mix.MolarFraction)*100);
}
public static double ThermalCapacity(LiquidMix liq)
{
return liq.MassFraction*liq.LB.ThermalCapacity + (1 - liq.MassFraction)*liq.HB.ThermalCapacity;
}
/*
private void Pressure_Out_Measure_Choose_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var grid = this.Content as Grid;
var Pressure_Out_Measure_Choose = grid.Children[22] as MyComboBox;
if ((Pressure_Out_Measure_Choose.SelectedIndex == 0))
{
Pressure_In *= 760;
}
if (Pressure_Out_Measure_Choose.SelectedIndex == 2)
{
Pressure_Out = 100000 * Pressure_Out / 101325 * 760;
}
}
private void Temperature_Out_Measure_Choose_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var grid = this.Content as Grid;
var Temperature_Out_Measure_Choose = grid.Children[25] as MyComboBox;
if (Temperature_Out_Measure_Choose.SelectedIndex == 1)
{
Temperature_Out += 273;
}
}
*/
private void Next_1_Click(object sender, RoutedEventArgs e)
{
bool g = true;
var grid = this.Content as Grid;
var Liquid = grid.Children[3] as MyComboBox;
var Pressure_Input = grid.Children[6] as TextBox;
var Pressure_Measure_Choose = grid.Children[7] as MyComboBox;
var Temperature_Input = grid.Children[9] as TextBox;
var Temperature_Measure_Choose = grid.Children[10] as MyComboBox;
//var Pressure_Out_Input = grid.Children[21] as MyTextBox;
//var Pressure_Out_Measure_Choose = grid.Children[22] as MyComboBox;
var Temperature_Out_Input = grid.Children[21] as MyTextBox;
var Temperature_Out_Measure_Choose = grid.Children[22] as MyComboBox;
var Liquid_Type = grid.Children[1] as MyComboBox;
var NK = grid.Children[25] as MyTextBox;
var VysPod = grid.Children[27] as MyTextBox;
double result = 0;
if ((double.TryParse(Pressure_Input.Text, out result) == false) ||
(double.TryParse(Temperature_Input.Text, out result) == false) ||
(double.TryParse(Temperature_Out_Input.Text, out result) == false) ||
(Liquid.SelectedIndex == Liquid.Items.Count - 1))
g = false;
double NK_dou = 0;
if (NK.Visibility == Visibility.Hidden)
{
NK_dou = 0;
}
if (NK.Visibility == Visibility.Visible)
{
if (double.TryParse(NK.Text, out result) == false)
{
g = false;
}
else
{
NK_dou = double.Parse(NK.Text);
if ((NK_dou == 0) || (NK_dou >= 1))
{
g = false;
}
}
}
double VP = 0;
if (double.TryParse(VysPod.Text, out result) == false)
{
g = false;
}
else
{
VP = double.Parse(VysPod.Text);
}
if (g == true)
{
Pressure_In = double.Parse(Pressure_Input.Text);
Temperature_In = double.Parse(Temperature_Input.Text);
Temperature_Out = double.Parse(Temperature_Out_Input.Text);
if (Pressure_Measure_Choose.SelectedIndex == 1)
{
Pressure_In = Pressure_In * 1000000 / (101325 / 760);
}
if (Pressure_Measure_Choose.SelectedIndex == 2)
{
Pressure_In = 100000 * Pressure_In / 101325 * 760;
}
if (Temperature_Measure_Choose.SelectedIndex == 1)
{
Temperature_In -= 273;
}
if (Temperature_Out_Measure_Choose.SelectedIndex == 1)
{
Temperature_Out -= 273;
}
/*
if (Pressure_Out_Measure_Choose.SelectedIndex == 0)
{
Pressure_Out *= 760;
}
if (Pressure_Out_Measure_Choose.SelectedIndex == 2)
{
Pressure_Out = 100000 * Pressure_In / 101325 * 760;
}
if (Temperature_Out_Measure_Choose.SelectedIndex == 1)
{
Temperature_Out += 273;
}
*/
//MessageBox.Show("Все круто!");
bool gg = true;
if (Temperature_Out < Temperature_In)
{
gg = false;
}
EasyPACT.Liquid liq;
if (gg)
{
try
{
if (Liquid_Type.SelectedIndex == 0)
{
liq = new EasyPACT.LiquidPure(id_str[Liquid.SelectedIndex], Temperature_In, Pressure_In);
}
else
{
liq = new EasyPACT.LiquidMix(id_str[Liquid.SelectedIndex], NK_dou, Temperature_In, Pressure_In);
}
Window_Add_Pipeline New_Pipeline = new Window_Add_Pipeline(liq, Temperature_Out, NK_dou, VP);
New_Pipeline.Show();
}
catch
{
MessageBox.Show("Неправильно введены параметры");
}
}
else
{
MessageBox.Show("Температура на выходе должна быть больше температуры на входе.");
}
}
if (g == false)
{
MessageBox.Show("Некоторые поля не заполнены / введены неверно");
}
}
static void Main(string[] args)
{
// Разделитель - точка
var inf = new CultureInfo(System.Threading.Thread.CurrentThread.CurrentCulture.Name);
System.Threading.Thread.CurrentThread.CurrentCulture = inf;
inf.NumberFormat.NumberDecimalSeparator = ".";
// Вывод курсовой
//var ans = Database.Query("insert into liquid_list(name,formula,molar_mass) values('Бутан','C4H10',58.1)");
//var ans = Database.Query("select * from liquid_list");
/*string ConnectionString = "Data Source=|DataDirectory|\\EasyPACT.sdf";
SqlCeConnection Connect = new SqlCeConnection(ConnectionString);
Connect.Open();
var command = Connect.CreateCommand();
command.CommandTimeout = Connect.ConnectionTimeout;
command.Connection = Connect;
command.CommandType = CommandType.Text;
command.CommandText = "select * from liquid_list";
var table = new DataTable();
var adapter = new SqlCeDataAdapter(command);
adapter.Fill(table);
command.CommandText = "insert into liquid_list ([name],[formula],molar_mass) values('Бутан','C4H10',58.01)";
adapter.UpdateCommand = command;
var row = table.NewRow();
row.BeginEdit();
row.SetField("name", "Бутан");
row.SetField("formula", "C4H10");
row.SetField("molar_mass", Convert.ToSingle(58.01));
row.EndEdit();
table.Rows.Add(row);
table.AcceptChanges();
adapter.Update(table);
table.AcceptChanges();
//table.AcceptChanges();
Connect.Close();*/
//var ht = new HeatExchangerPipe(14);
var liq = new LiquidMix("11,12", 0.28, 20, 760);
var pip = new PipelineRound(33, 1, 0.069, 0.0025, 52);
pip.AddLocalResistance(1);
pip.AddLocalResistance(12);
pip.AddLocalResistance(65.5);
pip.AddLocalResistance(2.1);
pip.AddLocalResistance(7);
var lip = new LiquidInPipeline(liq, pip);
pip = new PipelineRound(33, 1, 0.092, 0.0025, 6);
pip.AddLocalResistance("1 1");
for (var i = 0; i < 7; i++)
pip.AddLocalResistance("4 90 1");
var lip2 = new LiquidInPipeline(liq, pip);
var net = Network.Create(lip2, lip);
net.SetProductivity(30000/3600.0);
Network.Get().ChooseHeatExchanger(liq.BoilingPoint, liq.BoilingPoint + 20);
net.ChooseCentrifugalPump(5.6);
Console.WriteLine("Смесь: {0}", liq.Name);
Console.WriteLine("\tТемпература: {0} град.", liq.Temperature);
Console.WriteLine("\tДавление: {0} мм рт. ст.", liq.Pressure);
Console.WriteLine("\tТемпература кипения: {0} град.", liq.BoilingPoint);
Console.WriteLine("\tВязкость: {0} Па*с", liq.ViscosityDynamic);
Console.WriteLine("\tТеплоемкость: {0} Дж/кг К", liq.ThermalCapacity);
Console.WriteLine("\t: {0} Дж/кг К", liq.ThermalCapacity);
Console.WriteLine("Трубопровод всасывающий");
Console.WriteLine("\tРазмеры: {0}x{1} м", net.VacuumLine.Pipeline.ExternalDiameter,
net.VacuumLine.Pipeline.ExternalDiameter - net.VacuumLine.Pipeline.Diameter);
Console.WriteLine("\tДлина: {0} м",net.VacuumLine.Pipeline.Length);
Console.WriteLine("\tКоэффициент м.с.: {0}",net.VacuumLine.Pipeline.FactorOfLocalResistance);
Console.WriteLine("Трубопровод нагнетательный");
Console.WriteLine("\tРазмеры: {0}x{1} м", net.ForcingLine.Pipeline.ExternalDiameter,
net.ForcingLine.Pipeline.ExternalDiameter - net.ForcingLine.Pipeline.Diameter);
Console.WriteLine("\tДлина: {0} м", net.ForcingLine.Pipeline.Length);
Console.WriteLine("\tКоэффициент м.с.: {0}", net.ForcingLine.Pipeline.FactorOfLocalResistance);
Console.WriteLine("Смесь во всасывающем ТП");
Console.WriteLine("\tСкорость: {0} м/с",net.VacuumLine.Speed);
Console.WriteLine("\tКритерий Рейнольдса: {0}",net.VacuumLine.Re);
Console.WriteLine("\tКоэффициент трения: {0}", net.VacuumLine.FactorOfAFriction);
Console.WriteLine("\tПотеря давления на трение: {0} Па",net.VacuumLine.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря давления на м.с.: {0} Па",net.VacuumLine.LossOfPressureUponLocalResistances());
Console.WriteLine("\tПотеря давления: {0} Па", net.VacuumLine.LossOfPressureUponLocalResistances() + net.VacuumLine.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря напора: {0} м",
(net.VacuumLine.LossOfPressureUponLocalResistances() +
net.VacuumLine.LossOfPressureUponAFriction())/net.VacuumLine.Liquid.Density/9.81);
Console.WriteLine("Смесь в нагнетательном ТП");
Console.WriteLine("\tСкорость: {0} м/с", net.ForcingLine.Speed);
Console.WriteLine("\tКритерий Рейнольдса: {0}", net.ForcingLine.Re);
Console.WriteLine("\tКоэффициент трения: {0}", net.ForcingLine.FactorOfAFriction);
Console.WriteLine("\tПотеря давления на трение: {0} Па", net.ForcingLine.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря давления на м.с.: {0} Па", net.ForcingLine.LossOfPressureUponLocalResistances());
Console.WriteLine("\tПотеря давления: {0} Па", net.ForcingLine.LossOfPressureUponLocalResistances() + net.ForcingLine.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря напора: {0} м",
(net.ForcingLine.LossOfPressureUponLocalResistances() +
net.ForcingLine.LossOfPressureUponAFriction()) / net.ForcingLine.Liquid.Density / 9.81);
Console.WriteLine("Смесь в трубном пространстве ТО");
Console.WriteLine("\tСкорость: {0} м/с", net.HeatExchanger.LiquidInPipeline.Speed);
Console.WriteLine("\tКритерий Рейнольдса: {0}", net.HeatExchanger.LiquidInPipeline.Re);
Console.WriteLine("\tКоэффициент трения: {0}", net.HeatExchanger.LiquidInPipeline.FactorOfAFriction);
Console.WriteLine("\tПотеря давления на трение: {0} Па", net.HeatExchanger.LiquidInPipeline.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря давления на м.с.: {0} Па", net.HeatExchanger.LiquidInPipeline.LossOfPressureUponLocalResistances());
Console.WriteLine("\tПотеря давления: {0} Па", net.HeatExchanger.LiquidInPipeline.LossOfPressureUponLocalResistances() + net.HeatExchanger.LiquidInPipeline.LossOfPressureUponAFriction());
Console.WriteLine("\tПотеря напора: {0} м",
(net.HeatExchanger.LiquidInPipeline.LossOfPressureUponLocalResistances() +
net.HeatExchanger.LiquidInPipeline.LossOfPressureUponAFriction()) / net.HeatExchanger.LiquidInPipeline.Liquid.Density / 9.81);
Console.WriteLine("Затраты на создание скорости потока: {0} Па", net.ForcingLine.LossOfPressureUponCreationOfSpeed());
Console.WriteLine("Затраты на подъем жидкости: {0} Па", net.ForcingLine.LossOfPressureUponLifting(5.6));
Console.WriteLine("Полный напор: {0} м", (net.VacuumLine.LossOfPressureUponLocalResistances() +
net.VacuumLine.LossOfPressureUponAFriction())/
net.VacuumLine.Liquid.Density/9.81 +
(net.ForcingLine.LossOfPressureUponLocalResistances() +
net.ForcingLine.LossOfPressureUponAFriction())/
net.ForcingLine.Liquid.Density/9.81 +
(net.HeatExchanger.LiquidInPipeline.LossOfPressureUponLocalResistances() +
net.HeatExchanger.LiquidInPipeline.LossOfPressureUponAFriction())/
net.HeatExchanger.LiquidInPipeline.Liquid.Density/9.81 +
net.ForcingLine.LossOfPressureUponLifting(5.6) / 9.81 / net.ForcingLine.Liquid.Density);
Console.WriteLine("Для смеси {0} с параметрами t={1} и p={2} подходит ТО {3}, чтобы ее вскипятить.", liq.Id,
liq.Temperature, liq.Pressure, net.HeatExchanger.Id);
Console.WriteLine("Выбранный насос: {0}.",net.Pump.Brand);
var liq2 = new LiquidPure("6", 20, 760);
Console.WriteLine("Коэффициент теплопроводности ацетона: {0}",liq2.ThermalConductivity / 1.163);
Console.ReadKey();
}
/// <summary>
/// Подобрать теплообменник к заданной сети.
/// </summary>
/// <param name="temperatureLiquid">Требуемая на выходе температура в градусах Цельсия.</param>
/// <param name="temperatureSteam">Температура греющего пара в градусах Цельсия.</param>
public void ChooseHeatExchanger(double temperatureLiquid,double temperatureSteam)
{
var t = (temperatureLiquid + this.ForcingLine.Liquid.Temperature)/2; // Средняя температура
Liquid liq;
if (this.ForcingLine.Liquid.GetType().ToString().IndexOf("Pure") != -1)
liq = new LiquidPure(this.ForcingLine.Liquid.Id, t, this.ForcingLine.Liquid.Pressure);
else
{
var l = this.ForcingLine.Liquid as LiquidMix;
liq = new LiquidMix(l.Id, l.MolarFraction, t, l.Pressure);
}
var steam = new LiquidPure("10", temperatureSteam, Calculation.Pressure(10, temperatureSteam));
steam.Evaporate();
liq.Temperature = t;
var Q = this.Productivity*liq.ThermalCapacity/1000*
(temperatureLiquid - this.ForcingLine.Liquid.Temperature);
var G1 = Q/steam.VaporizationHeat;
var V1 = G1/steam.Density;
var V2 = this.Productivity/liq.Density;
var dtMax = steam.Temperature - this.ForcingLine.Liquid.Temperature;
var dtMin = steam.Temperature - temperatureLiquid;
var dt = (dtMax - dtMin)/Math.Log(dtMax/dtMin);
var Kor = 120;
var For = Q*1000/Kor/dt;
var Re2min = 10000;
var w2min = Re2min*liq.ViscosityDynamic/liq.Density/0.021;
var nmax = Math.Ceiling(V2/0.785/0.021/0.021/w2min);
var list =
Database.Query(string.Format("SELECT id FROM XXXIV WHERE surface_area < {0} AND pipes_per_course < {1}",
For, nmax))[0];
var id = list.First();
var he = new HeatExchangerPipe(Convert.ToInt32(id));
he.SetLiquidInCase(steam);
he.SetLiquidInPipes(this.ForcingLine.Liquid);
double F = 0;
while(true )
{
var Re2 = Re2min*(nmax*he.NumberOfCourses/he.NumberOfPipes);
var Pr2 = liq.Pr;
var Nu2 = 0.021*Math.Pow(Re2, 0.8)*Math.Pow(Pr2, 0.43);
var a2 = Nu2*liq.ThermalConductivity/0.021;
var q = Q/he.SurfaceArea;
steam.Condence();
var a1 = 1.21*steam.ThermalConductivity*
Math.Pow(
Math.Pow(steam.Density, 2)*steam.VaporizationHeat*9.81/steam.ViscosityDynamic/
he.PipesLength, 0.33)*Math.Pow(q, -0.33);
var d = 0.002;
var r = d/he.Pipeline.ThermalConductivity;
var r1 = 1/1600.0;
var r2 = 1/5800.0;
r = r + r1 + r2;
var K = 1/(1/a1 + r + 1/a2);
F = Q*1000/K/dt;
var zap = (he.SurfaceArea - F)/he.SurfaceArea;
if((zap < 0.1) & list.Count > 1)
{
list.RemoveAt(0);
id = list.First();
he = new HeatExchangerPipe(Convert.ToInt32(id));
he.SetLiquidInCase(steam);
he.SetLiquidInPipes(this.ForcingLine.Liquid);
}
else
{
break;
}
}
he.LiquidInCase.MassFlow = G1;
this.HeatExchanger = he;
}
