Development of a decentralised cooling panel with outdoor air connection, without refrigerant, without humidity input into the room air, retrofittable and with coefficients of performance (COP) > 10

Motivation

• GWP = 0; COP > 10; 100% renewable energy
• Decentralised indirect evaporative cooling with no moisture in the indoor or outdoor air
• Self-sufficient operation, rainwater harvesting
• Radiant and convective air discharge

Project Objective

• Application of regenerative and sustainable cooling via evaporative cooling in a decentralised air conditioning system (COP > 10)
• Functional combination of evaporative cooling and supply of purified outdoor air
• Novel membrane heat exchanger for two air streams and evaporation water including numerical calculation model
• Novel convection and radiation efficient air outlet for minimum draught risk
• Modular, cascadable unit concept for on-demand performance and off-grid and CO2-neutral operation (for PV power supply)
• Ceiling-mounted, wall-mounted or free-standing cooling panels for residential and non-residential buildings, retrofittable and acoustically compliant

Solution Approach

• Development of a membrane heat exchanger based on 4-layer textile laminates
• Development of equipment based on supply air recirculation and exhaust air humidification processes
• Development of an air outlet for convection and radiation cooling performance
• MSR and system components for rainwater harvesting, site-independence and cascading