Vanmok DensePhase(TM)

Vanmok DensePhase

Simulator for modeling pipelines transporting dense phase fluids such as CO2, Ethane etc..

The Challenges

CO2 pipeline design gets wrong if corrected EOS is not used.
Industrial pipelines transport CO2 in dense and supercritical phase.
Temperature changes and operational deviations can force phase transitions.
Near the critical point where CO2 pipeline operates, small modeling shortcuts can create large errors.
Density and heat-capacity ratio change sharply near critical conditions.
Many conventional equations of state (EOS) smooth out this behavior, leading to 10–30% property errors.
Those errors propagate directly into FEED design studies, and leak detection reliability.
CO₂ pipeline design becomes unreliable if near-critical physics is not handled correctly

Need for a Simulator:

Why Existing Simulation Tools Fail Near Critical Region

Most pipeline simulation tools rely on equations of state or property tables that were not designed for near-critical operation. While these methods perform adequately for conventional gas and liquid regimes, they struggle in dense-phase CO₂ where property curves change sharply near the critical point. Coarse tables and interpolation smooth out the very physics that governs this region, causing real-time models to use density and thermodynamic values that can be wrong by 10–30%. These inaccuracies directly undermine transient simulation fidelity and the reliability of leak detection systems.

Identified Gap in Existing Approaches

Helmholtz models: Thermodynamically accurate but computationally heavy for RTTM
Cubic EoS: Computationally efficient but unreliable near critical and phase-envelope regions
Multi-parameter models: Impractical for real-time use
Composition dynamics: Poorly handled in most CPM systems

Vanmok Dense Phase simulator as a Solution:

Vanmok’s CO₂ Simulator overcomes the limitations of conventional equations of state by using explicit, regularized thermodynamic correlations tailored for the critical region. Instead of relying on property tables or standard EoS near critical conditions, the simulator detects proximity to the critical point and replaces property evaluation with analytical correlations for density and heat-capacity ratio that are directly embedded into the transient PDE solver. This produces a continuous, numerically stable thermodynamic field across gas, liquid, critical, and supercritical regimes. As a result, the simulator accurately models challenging conditions such as startups, shut-ins, temperature swings, and elevation-driven density changes—where conventional tools typically fail.

Features & Benefits:

Accurate Prediction of Phase Behavior: Vanmok Dense Phase simulator allows for the precise modeling of the complex phase behavior of supercritical CO2 under various conditions. This is crucial for predicting when and where CO2 will transition between different phases (liquid, gas, supercritical), ensuring the pipeline remains within safe operating conditions.
Optimization of Transport Properties: With Vanmok Dense Phase simulator , Customers can model the transport properties of supercritical CO2 (density, viscosity, compressibility) under different pressures and temperatures, enabling optimization of pipeline design and operational parameters. This can help prevent issues like flow instability and ensure the efficient transportation of CO2.
Thermal Management: Maintaining the supercritical state of CO2 requires careful thermal management. Vanmok Dense Phase simulator helps model heat transfer and temperature variations along the pipeline, enabling the design of efficient thermal management strategies, such as insulation or heating systems, to ensure CO2 remains in the supercritical phase during transportation.
Flow Behavior and Stability: Vanmok Dense Phase simulator helps model and predict flow regimes (laminar, transitional, turbulent) and the impact of these regimes on pipeline performance. It enables the design of pipelines that prevent pressure drops, flow instabilities, and other issues that could compromise the system's reliability and safety.
Pressure and Safety Management: Simulating pipeline pressure and operational conditions allows for the accurate prediction of pressure fluctuations, helping operators design pipelines that can handle pressure variations without compromising safety. Vanmok Dense Phase simulator also helps in designing pressure relief systems and emergency shutdown procedures to prevent dangerous situations, such as over-pressurization or leakage.
Leak Detection and Emergency Response: Vanmok Dense Phase simulator can model CO2 leakage scenarios, accounting for its heavier-than-air properties and potential accumulation in low-lying areas. This aids in designing effective leak detection systems, safety measures, and emergency response protocols, improving overall safety and environmental protection.
Cost and Efficiency Optimization: Simulating various scenarios allows for optimization of the pipeline design and operation, reducing costs related to construction, maintenance, and energy consumption. By evaluating different operational strategies, Vanmok Dense Phase simulator can identify the most cost-effective and efficient solutions, improving the overall economics of CO2 transportation.
Real-time Monitoring and Adjustment: In real-world applications, Vanmok Dense Phase simulator can be integrated with real-time monitoring systems to adjust operational parameters dynamically. This helps maintain optimal conditions and respond quickly to changes in temperature, pressure, or other variables, ensuring safe and efficient operation throughout the pipeline's lifespan.
Regulatory Compliance: Given the environmental and safety concerns associated with CO2 transportation, having Vanmok Dense Phase simulator can assist in ensuring compliance with regulations (e.g., PHMSA, environmental standards) by demonstrating that the pipeline design, operation, and safety measures are adequate.
This ensures that the simulator can predict phase changes, flow behaviors, and other critical factors in real-time. The simulator predicts if CO2 remains in the supercritical phase and run scenarios to avoid undesired phase transitions.

User-Friendly Interface and Real-Time Monitoring

Designed with ease of use in mind, the graphical user interface (GUI) provides engineers and operators with an intuitive platform to visualize simulation results, monitor real-time data, and make informed decisions. Real-time adjustments are made simple with predictive analytics and diagnostic tools.

Why Choose Vanmok DensePhase Simulator for CO2 Pipelines?

Precision and Accuracy: Benefit from state-of-the-art thermodynamic and fluid dynamic models to predict CO2 behavior with exceptional accuracy.
Cost Optimization: Identify the most cost-effective pipeline design and operational parameters, reducing both construction and long-term operational costs.
Real-Time Decision Making: Leverage real-time data and simulations for proactive monitoring and operational adjustments, ensuring the system operates efficiently under all conditions.
Regulatory Compliance: Stay ahead of regulatory requirements with compliance checks and detailed reporting, ensuring your pipeline operations meet the latest safety and environmental standards.

Experience the Future of CO2 Pipeline Transport

At Vanmok, we are committed to providing innovative solutions that enhance the efficiency, safety, and environmental sustainability of CO2 transportation. Vanmok DensePhase Simulator for CO2 Pipelines is the ideal tool for designing, analyzing, and optimizing pipelines that transport CO2 in the supercritical phase.

SIMULATOR FOR DENSEPHASE PIPELINES