对于太阳能热电厂的项目，我在 balancer 闭合热流体回路中的压力方面遇到了一些困难，因此我决定制作一个简单的系统来消除一些错误 . 下面是两个储 jar 之间的简单循环，可以使用MSL的水介质正常工作：
model TankTestfluid
Modelica.Fluid.Pipes.StaticPipe pipe(
p_a_start=system.p_ambient,
length=20,
height_ab=-20,
redeclare package Medium = Medium,
diameter=0.1) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=-90,
origin={50,10})));
Modelica.Fluid.Pipes.StaticPipe pipe1(
p_a_start=system.p_ambient,
length=20,
height_ab=20,
redeclare package Medium = Medium,
diameter=0.1) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=90,
origin={-50,10})));
Modelica.Fluid.Machines.ControlledPump pump(
redeclare package Medium = Medium,
p_a_nominal=system.p_ambient,
m_flow_nominal=100,
p_b_nominal=200000) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=90,
origin={-50,-42})));
inner Modelica.Fluid.System system
annotation (Placement(transformation(extent={{-80,60},{-60,80}})));
Modelica.Fluid.Vessels.OpenTank tank1(
height=10,
crossArea=3,
redeclare package Medium = Medium,
nPorts=2,
portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05),
Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05)},
level_start=7,
use_portsData=false,
use_HeatTransfer=false,
T_start=363.15)
annotation (Placement(transformation(extent={{-12,-82},{28,-42}})));
Modelica.Fluid.Vessels.OpenTank tank2(
height=10,
crossArea=3,
nPorts=2,
redeclare package Medium = Medium,
portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05),
Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05)},
level_start=3,
use_portsData=false,
use_HeatTransfer=false,
T_start=353.15)
annotation (Placement(transformation(extent={{-20,30},{20,70}})));
// replaceable package Medium = SolarTherm.Media.MoltenSalt.MoltenSalt_base
// constrainedby Modelica.Media.Interfaces.PartialMedium annotation (
// __Dymola_choicesAllMatching=true);
replaceable package Medium = Modelica.Media.Water.StandardWater
constrainedby Modelica.Media.Interfaces.PartialMedium annotation (
__Dymola_choicesAllMatching=true);
equation
connect(pump.port_b, pipe1.port_a)
annotation (Line(points={{-50,-32},{-50,0}}, color={0,127,255}));
connect(pipe1.port_b, tank2.ports[1]) annotation (Line(points={{-50,20},{-28,20},
{-28,30},{-4,30}}, color={0,127,255}));
connect(tank2.ports[2], pipe.port_a) annotation (Line(points={{4,30},{26,30},{
26,20},{50,20}}, color={0,127,255}));
connect(pipe.port_b, tank1.ports[1]) annotation (Line(points={{50,0},{32,0},{32,
-82},{4,-82}}, color={0,127,255}));
connect(tank1.ports[2], pump.port_a) annotation (Line(points={{12,-82},{-22,-82},
{-22,-52},{-50,-52}}, color={0,127,255}));
annotation (uses(Modelica(version="3.2.2"), SolarTherm(version="0.2")));
end TankTestfluid;
现在，当我尝试使用与熔盐介质完全相同的模型时，我得到一个错误 . 我正在使用的熔盐介质可以在（在Alberto分公司）找到：
https://github.com/SolarTherm/SolarTherm.git
我做的唯一区别（除了介质）是起始温度（所以盐仍然是液体）：
model MoltenSaltTest
Modelica.Fluid.Pipes.StaticPipe pipe(
p_a_start=system.p_ambient,
length=20,
height_ab=-20,
redeclare package Medium = Medium,
diameter=0.1) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=-90,
origin={50,10})));
Modelica.Fluid.Pipes.StaticPipe pipe1(
p_a_start=system.p_ambient,
length=20,
height_ab=20,
redeclare package Medium = Medium,
diameter=0.1) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=90,
origin={-50,10})));
Modelica.Fluid.Machines.ControlledPump pump(
redeclare package Medium = Medium,
p_a_nominal=system.p_ambient,
T_start=673.15,
p_b_nominal=200000,
m_flow_nominal=10) annotation (Placement(transformation(
extent={{-10,-10},{10,10}},
rotation=90,
origin={-50,-42})));
inner Modelica.Fluid.System system
annotation (Placement(transformation(extent={{-80,60},{-60,80}})));
Modelica.Fluid.Vessels.OpenTank tank1(
height=10,
crossArea=3,
redeclare package Medium = Medium,
nPorts=2,
portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05),
Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05)},
level_start=7,
use_portsData=false,
use_HeatTransfer=false,
T_start=673.15)
annotation (Placement(transformation(extent={{-12,-82},{28,-42}})));
Modelica.Fluid.Vessels.OpenTank tank2(
height=10,
crossArea=3,
nPorts=2,
redeclare package Medium = Medium,
portsData={Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05),
Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter=0.05)},
level_start=3,
use_portsData=false,
use_HeatTransfer=false,
T_start=573.15)
annotation (Placement(transformation(extent={{-20,30},{20,70}})));
replaceable package Medium = SolarTherm.Media.MoltenSalt.MoltenSalt_base
constrainedby Modelica.Media.Interfaces.PartialMedium annotation (
__Dymola_choicesAllMatching=true);
// replaceable package Medium = Modelica.Media.Water.StandardWater
// constrainedby Modelica.Media.Interfaces.PartialMedium annotation (
// __Dymola_choicesAllMatching=true);
equation
connect(pump.port_b, pipe1.port_a)
annotation (Line(points={{-50,-32},{-50,0}}, color={0,127,255}));
connect(pipe1.port_b, tank2.ports[1]) annotation (Line(points={{-50,20},{-28,20},
{-28,30},{-4,30}}, color={0,127,255}));
connect(tank2.ports[2], pipe.port_a) annotation (Line(points={{4,30},{26,30},{
26,20},{50,20}}, color={0,127,255}));
connect(pipe.port_b, tank1.ports[1]) annotation (Line(points={{50,0},{32,0},{32,
-82},{4,-82}}, color={0,127,255}));
connect(tank1.ports[2], pump.port_a) annotation (Line(points={{12,-82},{-22,-82},
{-22,-52},{-50,-52}}, color={0,127,255}));
annotation (uses(Modelica(version="3.2.2"), SolarTherm(version="0.2")));
end MoltenSaltTest;
现在，无论我使用什么样的泵质量流量，我都无法填满“顶部”油箱，事实上，在设定质量流量时，顶部油箱排水速度越快 .
这里可能是错误的来源是什么？