Cold Climate Integrated Heat Pump with Energy Storage for Grid-Responsive Control

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An air-source integrated heat pump (ASIHP) is multifunctional unit, capable of space cooling, space heating, and water heating. We developed a packaged cold climate ASIHP, using a multi-stage compressor, capable of working down to -25°C, and provide 100% rated capacity down to -15°C with a heating COP > 2.2. An innovative system configuration and related controls were developed to solve charge balance in the integrated heat pump, smooth charge migration and mode transition among multiple working modes. Extensive laboratory investigations for individual modes were performed to verify the performance. Its integrated heating capability provides speedy water heating to meet domestic hot water use and store heating energy in a phase change material ceiling/panel. The heating energy storage can be used to shift load when the electricity price is high. Based on the performance data and a calibrated model from the laboratory testing, we conduced building energy simulations driven by a model predictive control, using EnergyPlus in one U.S. cold climate zone to investigate the grid-responsive control strategy and estimate the utility cost reduction potential.

Product Details

Published:

2023

Number of Pages:

9

Units of Measure:

Dual

File Size:

1 file , 5.5 MB

Product Code(s):

D-CCC23-34

Note:

This product is unavailable in Russia, Belarus