Overheating protection by system design

Source: Fraunhofer ISE, Germany

Figure 9.4.10 Infrared picture of wall section with two TI elements in front of a 240 mm limestone wall (January, 9.00 pm; maximum surface temperature 32°C)

Source: Fraunhofer ISE, Germany

Figure 9.4.10 Infrared picture of wall section with two TI elements in front of a 240 mm limestone wall (January, 9.00 pm; maximum surface temperature 32°C)

During the summer, of course, surface temperatures above room temperature decrease the thermal comfort. Due to the high solar altitude, the g-value in summer is much smaller for south-east to south-west oriented walls. A second effect that reduces the efficiency is a comfortably raised room temperature of 24°C in summer. If only small areas of solar wall heating are used, the excessive gains can therefore be quite small. Another possibility is seasonal shading with building structure (balconies with a width larger than 1 m). Recently developed glass panes with prismatic surface structures can simulate this effect even without using overhangs (Detail, 2002). More than 50 per cent of the realized projects do not apply any solar protection devices.

Solar Power Sensation V2

Solar Power Sensation V2

This is a product all about solar power. Within this product you will get 24 videos, 5 guides, reviews and much more. This product is great for affiliate marketers who is trying to market products all about alternative energy.

Get My Free Ebook


Post a comment