Absorption heat pump energy storage

Can absorption thermal energy storage be integrated with absorption heat pump?

In the Royal Institute of Technology, Sweden, integrated absorption thermal energy storage with absorption heat pump based on KOH-H 2 O theoretically studied , and energy storage density of 220 kWh/m 3 could be obtained.

What is absorption thermal storage?

Absorption thermal storage is attractive for stable storage of solar thermal energy. However, traditional cycle considers discharging higher than a certain temperature, which neglects the temperature matching between the discharging process and the external heat source.

Is absorption thermal energy storage a good idea?

Besides, studies in absorption thermal energy storage seem to be promising , as the well-developed absorption chiller/heat pump technology could be easily applied to the absorption thermal energy storage that makes it more practical. Further, its output temperature can be easily manipulated.

How does absorption thermal/energy storage work with a heat pump or chiller?

Typically, the integration of absorption thermal/energy storage with a heat pump or a chiller has mainly two purposes. The first one is to drive the absorption chiller/heat pump when solar energy is not sufficient and/or available. The second is to shift the peak load of electricity demand to the off-peak load periods .

What are the different types of absorption thermal energy storage systems?

Depending on the system and the required output, different external tanks could be used. The integrated absorption thermal energy storage with a conventional system classified into two based on the input energy: low-grade energy-driven system and high-grade energy-driven system.

What is the role of working pair in absorption thermal energy storage?

Except for the thermodynamic and system integration aspects, working pair also plays an important role in the absorption thermal energy storage. Previously, different absorption materials have been used for absorption cycles including absorption heat pumps, absorption chillers, and absorption heat transformer.