Heat Pump Cycle Performance Data from a Cooled Compression Study

A mathematical model of a novel vapor compression heat pump cycle that achieved a Coefficient of Performance (COP) of 4.1 and 59% Lorenz efficiency for a case using R717 refrigerant. The study by Nasrin Arjomand Kermani from the Technical University of Denmark proposes a configuration combining compression and condensation in a single unit. The model investigates system parameters, performance improvements, and the effects of refrigerant injection into the compressor.

Use Cases

• Benchmarking novel heat pump designs based on the reported COP and Lorenz efficiency metrics.
• Analyzing the impact of refrigerant injection on compression work and cycle efficiency.
• Modeling thermodynamic losses associated with desuperheating in conventional cycles.
• Investigating the feasibility of integrating heat pumps with district heating systems based on the availability of hot liquid at the compressor outlet.

Strengths

• The study reports specific performance metrics, including a COP of 4.1 and 59% Lorenz efficiency.
• The description details a novel thermodynamic cycle configuration with defined advantages over conventional systems.
• The work includes a sensitivity analysis to investigate heat transfer and determine optimal injection conditions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Technical University of Denmark

Collection Method

Mathematical modeling and thermodynamic analysis of a proposed heat pump cycle.