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Evaluating Ground Source Heat Pump Systems: Open vs. Closed Loop Performance Analysis

This analysis explores the impacts of pumping systems in Ground Source Heat Pumps (GSHP) using the SEEM model to generate operational loads and hours across five climates. It highlights the effects of coefficients of performance (COP) and energy efficiency ratios (EER), revealing that energy impacts are contingent on individual home loads and specific climate conditions. Notably, open loop pumping of groundwater can enhance performance, while deep well systems significantly reduce COP and EER. Additionally, shallow closed loops can achieve similar performance improvements.

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Evaluating Ground Source Heat Pump Systems: Open vs. Closed Loop Performance Analysis

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Presentation Transcript

  1. GSHP Pumping Impacts Open Loops vs Closed Loops

  2. GSHP Pumping analysis • Used SEEM to generate loads and hours of operation • Five climates run but COP and EER impacts similar • Energy impacts are a function of individual home loads and climates

  3. Heating Impacts

  4. Cooling Impacts

  5. Results • Open loop pumping of ground water can result in improved performance • Deep well open loops result in significant COP,EER reduction. • Shallow closed loops can have an equally big effect on performance.

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