Electronic Thermally Initiated Venting System (ETIVS) Trigger and Thermal Sensor Navy SBIR FY2014.2 Sol No.: Navy SBIR FY2014.2 Topic No.: N142-108 Topic Title: Electronic Thermally Initiated Venting System (ETIVS) Trigger and Thermal Sensor Proposal No.: N142-108-0643 Firm: NALAS Engineering Services Inc. 85 Westbrook Road Centerbrook, Connecticut 06409 Contact: Brian Amato Phone: (860) 581-8477 Web Site: www.nalasengineering.com Abstract: Current Thermally Initiated Venting Systems (TIVS) consist of a thermal sensor, trigger, out-of-line blocking device, initiator, transfer energetic, and linear-shaped charge. TIVS reduce the reaction violence of munitions exposed to cook-off events by scoring the case of the rocket motor, not penetrating the case and igniting the propellant. The TIVS trigger should function when the rocket motor is placed in extreme temperature conditions that cause it to cook-off. Technologies needed to implement an ETIVS trigger and thermal sensor into a compact device capable of controlling the initiation of energetic materials are desired to increase the flexibility in application, safety and reliability of state-of-the-art ETIVS designs. Nalas proposes integration and implementation of advanced technologies to address the presented safety requirements and performance specifications. Use of thermoelectric generators (TEG) is proposed to serve as both an energy harvesting device and temperature sensor. The circuit will be designed to leverage power output and a second temperature monitoring device to enable thermal loading on the system to power the mitigation device. Modeling will be utilized to determine available power from TEGs located on the case system. Design considerations include requirements to meet form factor, withstand environmental conditions, and pass Insensitive Munitions testing Benefits: The Phase I effort will focus on evaluating technical feasibility of the ETIVS logic circuitry, thermal sensors, power functions, and lock-out device under different heating rates. The collective effort will provide a solid foundation towards development and fabrication of a prototype for eventual transition into a Navy system application. The technology can be further adapted to multiple weapons systems and energetic materials by simply changing the logic in the electronic circuit. The ability to monitor and respond to changes in local temperatures has direct impact on multiple industries. Emerging markets in the commercial sector demand sensor conditioning and other mixed signal application circuitry be placed in extreme temperature environments, such as down oil wells and in hot sections of engines. Technology developed during this effort will be directly transferrable into these emerging markets. Return