Performance of a solar air collector at a CEC demonstration project, Easthall, Glasgow.

The paper describes the design strategy and performance of an air-driven solar water and ventilation preheat system, an integral part of a CEC Demonstration Project in Glasgow; noting how performance has been compromised partly by inherent, and partly unforseen design aspects - e.g. unexpected intervention by the user. There are 12 collectors and measurements described in this paper are restricted to one which faces South-East with a tilt of 30°. Four stages during the monitoring period are examined - different both in terms of weather conditions and in parts of the system itself which underwent change during the monitoring period. In general terms the efficiency of the system is found to be very low, but there are compensatory features as well as useful lessons for future systems of this type.