Cold energy storage air conditioner

What is cold storage in air conditioning?

1. Introduction Cold storage, which primarily involves adding cold energy to a storage medium, and removing it from that medium for use at a later time, has wide applications for air conditioning use in buildings, vehicles, and other conditioned spaces.

What is cold energy storage?

Cold energy storage is an effective way to relieve the gap between energy supply and demand. It can be seen that air conditioner cold storage technology is a critical technique to realize the utilization of new energy sources and energy savings. Generally, liquid–solid phase change material (PCM) is the main type of energy storage material.

What are the advantages of air conditioning with cold storage devices?

The summary of air conditioning with cold storage devices. Ice storage is adopted to reduce operating costs, and the supplied chilled water temperature can be as low as 3 °C The cooling capacity from the melting ice accounted for about 40% of the total cooling load, and the energy efficiency ratio of the cooling plant is 2.62

What are the types of air conditioning with cold storage devices?

The summary of air conditioning with cold storage devices is shown in the Table 2. According to the phase-change temperature for air conditioning systems, it can be classified as low temperature cooling air conditioning system, conventional air conditioning system and high temperature air conditioning system.

What are cold storage technologies in air conditioning applications?

Cold storage technologies in air conditioning applications can be classified according to the type of a storage medium and the manner in which the storage medium is used. Previous research has provided summaries and reasonable analyses for most of the common storage media such as water and ice.

What is a mixed cold storage air-conditioning system?

A mixed cold storage air-condition system is a combination of a PCM cold storage tank, an ice cold storage tank, a refrigeration unit and a cooling supply unit, as shown in Fig. 5. The experimental studies showed that the PCM cold storage tank could increase COP of the chiller by more than 5% and increase cold storage capacity by 20%. Fig. 5.