Increasing the Photovoltaic Self-Consumption by Integration of an Ice Storage Into a Mono-Split-Air Conditioning Unit
Abstract
Photovoltaic-driven air conditioning systems offer a lot of advantages over solar-thermal driven cooling systems. An open issue is the missing linkage between PV and AC system regarding the different temporal peaks of electricity generation and cooling demand. The paper presents investigation results of an ice storage coupled with a mono-split air-conditioning unit. Resulting average energy efficiency ratios of charging process are between 2.8 and 3.4. Maximum ice fraction was limited due to evaporator – storage geometry to 55 %. Between an ice fraction of 55 down to 5 % a cooling rate of 2 kW was achieved for discharge process.