Algorithm for Heat Exchanger Control System Sample Clauses

Algorithm for Heat Exchanger Control System. The algorithm of operation of these valves could be as follows: If the temperature of water supplied to the building exceeds 420C the bigger valve will shut off. In the case of a temperature increase beyond 450C the smaller valve will also shut off and the discharge of geothermal water to sewage will be stopped. In the case of a temperature drop beyond 450C the electromagnetic valves will open in a reverse order. In the algorithm it is important to take into account the “sleep” regime of hot water use, when at night the consumption of the hot water is practically stopped. In this case the valve operation based on temperature sensor signals is insufficient, because in this case the temperature in the reservoir housing the temperature sensors will drop due to heat loss to the environment. In this case the electromagnetic valves would stay closed to avoid unproductive spillage of geothermal hot water. In order to avoid such a condition, it is necessary to monitor the pressure drop in outgoing hot water pipe and supply this information to the processor. Therefore, the valves will open only when there would be a temperature drop below 450C and there would be a temperature drop in the outgoing pipe, meaning that there is hot water consumption in the building.
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