Which fire detection system operates on the principle of gas pressure buildup proportional to temperature?

The system that operates on the principle of gas pressure buildup proportional to temperature is the Lindberg Continuous-element system. This system employs a continuous sensing element that responds to changes in temperature by creating pressure changes within a sealed environment. As the temperature increases, the gas within the element expands, causing pressure to rise. This pressure is directly proportional to the temperature, allowing for precise detection of thermal conditions that may indicate a fire.

In practical applications, the Lindberg Continuous-element system provides continuous monitoring and can detect slow temperature increases, making it suitable for environments where early fire detection is critical. Its reliance on the gas pressure principle provides a reliable method for indicating overheating or fire events, reacting to even minor changes in a temperature, which can be vital for safety in powerplants.

In contrast, other systems mentioned do not operate on the same principle of gas pressure buildup. For instance, the Kidde Continuous-loop system uses a different mechanism where the detection relies on the electrical resistance of a sensing element. The Thermal Switch System operates based on a simple on/off mechanism triggered at a pre-defined temperature. The Rate-of-temperature-rise system focuses on the speed of temperature rise rather than a direct correlation of pressure changes to temperature increases. Each of these systems has its own detection principles,