Methods and guidelines for energy efficient comfort cooling
Focus on indoor thermal comfort, productivity / learning, energy and the environment leads to the need for cooling solutions that balance these parameters.
Available methods for reducing the heat load is often increased ventilation, cooling and shading, but there are other methods which can be considered, which ensures high energy efficiency.
Alternative cooling systems is an option with little spred in todays buildings. Alternative cooling can increase design options and possible building purposes. Cooling is especially relevant in buildings with large internal heatload, for example buildings for education and offices, etc. Achievement of better termal indoor invironment is of great importance for productivity and learning. Cooling can help increase a building's quality by improving adaptation needs to different users and occupancy loads.
The project will gather, process and analyse information on available alternative cooling methods with high energy efficiency and low environmental impact. The project will also asses and calculate alternative cooling methods cost and efficiency and further come with instructions and design guidance. The project will by mapping the widely different technologies create a basis for comparison between methods for the construction industry.
The project recommends different alternative cooling methods with very low electricity consumption. Focus on indoor thermal comfort, productivity / learning, energy and the environment leads to the need for cooling solutions that balance these parameters.
Available methods for reducing the heat load is often increased ventilation, compressor cooling and shading, but there are other methods which can be considered, which ensures high energy efficiency.
Alternative cooling systems is an option with little spread in today's buildings. Alternative cooling can increase design options. Cooling is especially relevant in buildings with large internal heat load, for example buildings for education and offices, etc. Achievement of better thermal indoor environment is of great importance for productivity and learning. Cooling can help increase a building's quality by improving adaptation needs to different users and occupancy loads.
The project has gathered information on available commercial alternative cooling methods with high energy efficiency and low environmental impact. The described methods are a) Free coolinq: sea water, lake water, earth cooling; b) thermal driven cooling methods: ad sorption cooling machines and absorption cooling machines; c) cooling by water humidification:
direct humidification, indirect humification; d) cooling by dehumidification wheel, and more. Cases that shows how the cooling methods can be used in practice are presented in the project rapport.
The project estimate and calculate the environmental impact of and the investment in the alternative cooling methods.
The output of the project is: technology overview, design strategies, application guidance and case specific energy- and overall economy assessments. The alternative cooling options will create greater value in both new and existing buildings.
Key figures
Category
Participants
| Partner | Subsidy | Auto financing |
|---|---|---|
| Ekolab ApS | ||
| TROLDTEKT A/S | ||
| Innoterm A/S | ||
| Ingeniørhøjskolen I Aarhus | ||
| BN Teknik Aps | ||
| Solarcooling Aps |
