Abstract: A nuclear reactor scram control system for a nuclear reactor includes a solenoid pilot valve (SSPV). The SSPV includes a solenoid indicator light electrically coupled to an SSPV solenoid of the SSPV. The solenoid indicator light may be selectively activated based on an energization state of the SSPV solenoid, thereby providing an immediate and visually observable indication of the SSPV energization state. The immediate and visually observable indication of the SSPV energization state may enable quicker and more reliable verification of SSPV solenoid energization state. As a result, operator radiation exposure associated with verification may be reduced, and a risk of inadvertent nuclear reactor scram based on a de-energized SSPV solenoid may be reduced, thus streamlined nuclear reactor operations.

Abstract: A nuclear reactor scram control system for a nuclear reactor includes a solenoid pilot valve (SSPV). The SSPV includes a solenoid indicator light electrically coupled to an SSPV solenoid of the SSPV. The solenoid indicator light may be selectively activated based on an energization state of the SSPV solenoid, thereby providing an immediate and visually observable indication of the SSPV energization state. The immediate and visually observable indication of the SSPV energization state may enable quicker and more reliable verification of SSPV solenoid energization state. As a result, operator radiation exposure associated with verification may be reduced, and a risk of inadvertent nuclear reactor scram based on a de-energized SSPV solenoid may be reduced, thus streamlined nuclear reactor operations.

Abstract: A jet pump assembly according to an example embodiment of the present invention includes an inlet body arranged in proximity with a throat structure so as to provide an entrainment entrance between a discharge end of the inlet body and the throat structure. A drive flow of a motive fluid is supplied at a first velocity to the inlet body and is discharged through at least one nozzle at a higher second velocity, thereby creating a pressure drop in the throat structure. The pressure drop facilitates a first entrained flow of suction fluid into the entrainment entrance and a second entrained flow of suction fluid through at least one channel passing through the inlet body. The at least one channel is configured such that the second entrained flow is isolated from the drive flow while passing through the inlet body.

Abstract: A jet pump assembly according to an example embodiment of the present invention includes an inlet body arranged in proximity with a throat structure so as to provide an entrainment entrance between a discharge end of the inlet body and the throat structure. A drive flow of a motive fluid is supplied at a first velocity to the inlet body and is discharged through at least one nozzle at a higher second velocity, thereby creating a pressure drop in the throat structure. The pressure drop facilitates a first entrained flow of suction fluid into the entrainment entrance and a second entrained flow of suction fluid through at least one channel passing through the inlet body. The at least one channel is configured such that the second entrained flow is isolated from the drive flow while passing through the inlet body.