De Falco M., Dose G., Zaccagnini A., 2015, PCM-Cold Storage System: an Innovative Technology for Air Conditioning Energy Saving, Chemical Engineering Transactions, 43, 1981-1986.
An innovative solution to store cold energy by means of the solidification latent heat of PCMs is presented. The cold storage system is suitable for domestic application (typical in/out primary circuit temperature = 7- 12°C) since it stores cold energy at 5.5°C. The innovative heat exchanger system implemented in the storage unit allows the increase of energy charge/release dynamics and, therefore, leads to high power both in charge and release phases. The 5 kWh prototype developed and tested is illustrated, together with some experimental results, demonstrating the technology application potentialities.