Defining method for determining an amount of heat in a liquid solar medium in a solar unit allows the solar medium to flow through the solar unit to be heated up by the sun's rays

摘要

A volume-measuring device (2) links to a meter (1) for amounts of heat in the form a flow-meter. Two temperature-measuring devices (3,3') link up for the inflow/outflow of the solar medium regarding a solar unit and send their data to a processing computer for the meter for amounts of heat. A selector (4) has a display (6) for different concentrations of the solar medium.