A Novel TRNSYS Standalone Type for Patented Shallow Ground Heat Exchangers in DSHP Systems

 

1. Introduction

This research introduces a novel standalone TRNSYS Type specifically designed for a patented shallow ground heat exchanger integrated into a dual-source heat pump system. The study addresses existing modeling limitations by offering a simplified yet accurate simulation approach, enabling better performance prediction and system optimization. The research contributes to sustainable energy solutions by advancing geothermal heat exchanger modeling and supporting energy-efficient building applications.

2. Development of the Standalone TRNSYS Type

This section focuses on the methodological framework used to develop the standalone TRNSYS Type. It explains the mathematical formulation, thermal assumptions, and boundary conditions required to model the patented shallow ground heat exchanger accurately. The development process emphasizes modularity, computational efficiency, and compatibility with existing TRNSYS libraries, making the model adaptable for future research and practical applications.

3. Patented Shallow Ground Heat Exchanger Design

The research examines the unique design features of the patented shallow ground heat exchanger, highlighting its thermal performance advantages and reduced installation complexity. The study discusses heat transfer mechanisms, soil–pipe interactions, and system scalability, demonstrating how shallow geothermal solutions can be optimized for residential and small-scale commercial use.

4. Integration with Dual-Source Heat Pump Systems

This topic analyzes how the developed TRNSYS Type is implemented within a dual-source heat pump system. The research evaluates system switching strategies, seasonal performance, and operational flexibility when combining air and ground sources. The integration results show improved reliability and energy efficiency under varying climatic conditions.

5. Simulation Results and Performance Evaluation

This section presents simulation outcomes derived from the TRNSYS model, including thermal efficiency, energy savings, and system responsiveness. Comparative analysis with conventional modeling approaches validates the accuracy of the standalone Type and demonstrates its potential to reduce simulation time while maintaining high precision.

6. Research Implications and Future Directions

The final topic discusses the broader research implications of this work, emphasizing its relevance to sustainable building design, geothermal system optimization, and policy-driven energy transitions. Future research directions include experimental validation, large-scale system applications, and integration with smart energy management platforms.
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