Characterization of Heat Transfer Rates in an Air to Phase Change Material Thermal Storage Unit for Integration in Air Handling Units

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Wert, Sarah Suzanne




An air-loop was designed, constructed and instrumented to characterize the heat transfer rates and energy storage potential of a small scale PCM thermal energy storage (TES) unit. The storage unit was custom made and housed multiple aluminum flat plates filled with PCM (RT44HC). The plates were aligned in two rows of 29. Overall, three variables were studied for the characterization: the HTF flow rates, the initial temperature of the PCM and the HTF inlet temperature. An empirical model was created in TRNSYS. This model was used to simulate a PCM TES integrated into an AHU using the integration method of strategic heating with the goal of reducing peak power during start-up. The simulation results were compared to the AHU without PCM TES to determine whether any energy improvements were achieved. It was determined that by adding the PCM TES the start-up peak power could be reduced by 35 kW.


Engineering - Mechanical




Carleton University

Thesis Degree Name: 

Master of Applied Science: 

Thesis Degree Level: 


Thesis Degree Discipline: 

Engineering, Mechanical

Parent Collection: 

Theses and Dissertations

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