초록

An electric signal representative of the rate of insolation is integrated to determine if it is adequate for operation of a solar energy collection system.

대표청구항 ▼

In a solar collector system wherein a fluid is circulated through a solar energy collector by a fluid impeller, a control arrangement comprising: insolation detector means for producing an insolation signal, the magnitude of which is proportional to the rate of the insolation; first pulse producing

In a solar collector system wherein a fluid is circulated through a solar energy collector by a fluid impeller, a control arrangement comprising: insolation detector means for producing an insolation signal, the magnitude of which is proportional to the rate of the insolation; first pulse producing means for producing first pulses at a frequency proportional to the magnitude of said insolation signal; first counter means connected to receive said first pulses and to produce an output when its capacity is reached; second pulse producing means for producing second pulses at a fixed rate; second counter means connected to receive said second pulses and to produce an output when its capacity is reached; said first and second counter means being connected to be reset upon receiving the output pulse from either said first or second counter means; and actuating means responsive to an output from said first counter means to turn on said fluid impeller and responsive to an output from said second counter means to turn off said fluid impeller.