| Abstract |
| This study examines the thermodynamic characteristics of danger as a framework for human-centered safety management. Using the Balloon-in-Water Model (BMW), the study explains how the first, second, and third laws of thermodynamics can be applied to Danger Condition Adjustment Theory (D-CAT). Analogous to the first law of thermodynamics, which asserts the conservation of total energy, D-CAT posits that although danger can be variously classified, for example, latent, perceived, unperceived, and managed―total amount of danger remains constant. Based on the second law of thermodynamics, systems naturally evolve toward states with a greater number of possible configurations(i.e., increasing entropy), this study applies the negentropy concept to explain that to alter danger states in a desirable direction, intentional inputs of perceptual effort energy and management effort energy are required. By applying the conclusion of the third law of thermodynamics―that absolute zero (0 K) is unattainable―the study argues that the perfect danger elimination and complete safety fulfillment are impossible. Therefore, it cautions against the arrogant belief in the complete elimination of danger and complacency arising from the illusion of having achieved complete safety, both constituting additional danger states. Finally, the study discusses how D-CAT, grounded in the BMW, can be applied to human-centered safety management practices, such as danger assessment. |
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| Key Words |
| 열역학법칙, 위험상태조절이론, 물통 속 풍선모델, 위험성평가, 인간중심 안전관리, The Laws of Thermodynamics, Danger Condition Adjustment Theory, The Balloon Model in a water-tank, Human-centered Safety Management |
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