Valves and Orifices
Use these blocks to model orifices, valves, and valve actuators in the two-phase fluid domain.
Simscape Blocks
Directional Control Valves
4-Way 2-Position Directional Valve (2P) | 4-Way 2-Position Directional Valve in the two-phase fluid domain (Since R2024b) |
4-Way 3-Position Directional Valve (2P) | 4-way, 3-position directional valve in the two-phase fluid domain (Since R2024b) |
Check Valve (2P) | Check valve in a two-phase fluid network (Since R2021a) |
Flow Control Valves
Thermostatic Expansion Valve (2P) | Flow control valve that maintains evaporator superheat (Since R2020b) |
Pressure Control Valves
Pressure Relief Valve (2P) | Pressure relief valve in a two-phase fluid network (Since R2021a) |
Pressure-Reducing Valve (2P) | Pressure-reducing valve in a two-phase fluid network (Since R2021a) |
Valve Actuators and Forces
Multiposition Valve Actuator | Multiposition actuator in any fluid domain (Since R2020a) |
Proportional Valve Actuator | Power-controlled valve actuator in any fluid domain (Since R2020a) |
Orifices
Orifice (2P) | Constant- or variable-area orifice in a two-phase fluid network (Since R2021a) |
Topics
- Building a Custom Valve
Model a custom valve with orifice blocks.
Featured Examples
Residential Air Source Heat Pump
Models an air source heat pump system that is used to heat a residential building having hot-water radiators for heat distribution. The two-phase fluid refrigerant takes up heat from the environment moist air mixture and transfers heat to water. The compressor drives the R410a refrigerant through a condenser, a thermostatic expansion valve, and an evaporator. An accumulator ensures that only vapor returns to the compressor.
Residential Ground Source Heat Pump
Models a ground source heat pump system that is used to heat a residential building having hot-water radiators for heat distribution. The ground source heat pump uses R410a, a two-phase fluid refrigerant, as the working fluid. The heat pump takes up the naturally existing heat stored in the ground and transfers the heat to the hot-water radiators. The compressor drives the refrigerant through a condenser, a thermostatic expansion valve, and an evaporator. An accumulator ensures that only vapor returns to the compressor. A receiver ensures that only liquid returns to the thermostatic expansion valve.
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