RE551 Flat Plate Solar energy Collector

RE551 Flat Plate Solar energy Collector

A flat plate solar collector similar to those used for heating swimming pools or domestic hot water is mounted on an adjustable frame. The unit is designed for internal or external operation.

For internal operation an artificial solar source is available on application as an optional extra.

An instrumentation and water circulating console is attached to the panel under test via flexible hoses and this displays all of the relevant measured parameters.

The operating temperature of the system is adjusted by adjustment of a flow of cooling water and this allows investigation of performance over a range of operating conditions.

The instrumentation records the circulating water flow, flow and return temperatures, ambient temperature and incident solar radiation. The incident solar energy is measured using a solarimeter and this together with the other measured parameters allows the performance and efficiency of the system to be measured under all operating conditions

A compass and adjustable level indicator are supplied to allow adjustment of the panel on site.

RE551 Flat Plate Solar energy Collector

An adjustable frame mounted flat plate solar collector with remote instrumentation and water circulation console. Instrumentation must include water flow rate, flow and return temperatures and incident solar radiation.

An optional flat focussing type solar collector must also be available together with an optional computerised data acquisition system.

  • Measuring the efficiency of a flat plate solar collector
  • With the optional focussing collector, RE551A comparison of the efficiency with a flat plate collector.
  • Analysis of the efficiency and heat losses of the collector in use.
  • Study of the variation of incident energy on the collector and collector inclination.
  • With the addition of optional computerised data acquisition the daily variation of incident energy and system performance.

RE551 (and RE551A)


A: 220-240 Volts, Single Phase, 50Hz (With earth/ground)

    Line current up to 6A at 230v


B: 110-120 Volts, Single Phase, 60Hz (With earth/ground)

     Line current up to 10A at 110v       

Cooling water:

Up to 3 litres/minute at up to 5m head


For up to 3 litres/minute