Shallow Quench Test
Full Form of SQT
What is SQT?
The Shallow Quench Test (SQT) is a thermal-hydraulic safety evaluation procedure used in nuclear reactors to verify the performance of the Emergency Core Cooling System (ECCS) during a simulated small-break loss-of-coolant accident. During this test, engineers intentionally introduce a small controlled leak in the primary coolant circuit to replicate a minor pipe break and observe whether the safety injection system can deliver adequate coolant to prevent fuel cladding damage. In India, the test holds significant importance as the country operates numerous Pressurized Heavy Water Reactors and is rapidly expanding its nuclear power generation capacity under the supervision of the Department of Atomic Energy. The Atomic Energy Regulatory Board mandates SQT as part of routine safety assessment at facilities including Kakrapar, Tarapur, and other nuclear training establishments. The procedure is also used during commissioning of new reactor designs. Engineering aspirants preparing for GATE, BARC OCES, and similar nuclear science examinations regularly study SQT because it forms a foundational topic in reactor safety engineering, thermal hydraulics, and accident analysis modules.
SQT का फुल फॉर्म
उथला शमन परीक्षण
Example
Safety engineers at the Kakrapar Atomic Power Station recently conducted the Shallow Quench Test to validate the reactor's emergency core cooling response under simulated accident conditions.