Dynamic Performance Data for Large-Scale Ammonia Heat Pumps

Modelica-based simulations assess the dynamic behavior of one-stage and two-stage ammonia heat pumps for district heating. Results indicate condensation in the low-pressure suction line limits ramp-down speed, but preheating enables regulation between 100% and 40% load in under five minutes. This dataset, from the Technical University of Denmark, supports the design of heat pumps for flexible grid balancing.

Use Cases

• Optimizing receiver and suction trap design based on oscillation data during fast ramping.
• Assessing the impact of preheating suction lines on heat pump ramp-down performance.
• Comparing the dynamic load regulation capabilities of one-stage versus two-stage ammonia heat pump configurations.
• Modeling heat pump flexibility for providing secondary regulation power to electricity grids.

Strengths

• Focuses on a specific, high-impact engineering challenge: dynamic operation of large-scale ammonia heat pumps.
• Compares multiple system configurations (one-stage and two-stage) and design adaptations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect modeling assumptions and bias inherent to the specific simulation approach.

Provenance

Source

Technical University of Denmark

Collection Method

Modelica-based simulation modeling of heat pump configurations.