Ventilation of enclosed life-boats

The reason for the adoption of the International SOLAS Convention, which for the first time established the basic principles of equipping ships with life-saving equipment, was the Titanic disaster in the North Atlantic. Since then, this convention has continued to be improved from accident to accident, and the International Code of Spa Products (LSA Code) has been developed. The lessons of the death of the ocean container ship MOL Comfort on June 17, 2013 in the Indian Ocean became the catalyst for a number of important changes in safety regulations. The crew had to survive in stale air conditions inside a closed lifeboat in stormy weather in tropical waters. But the solution to the problem of ventilation of the boats was delayed for a whole decade. Scientific studies of the microclimate of enclosed rescue vehicles and methods for solving the problem of ventilation in them are considered. The issues of human survival at sea are investigated, experiments conducted in Germany, China, and Canada are described, a mathematical model of air exchange that ensures vital processes in the body is presented, and the requirements for ventilation of fully enclosed life-boats of the International Code of Life-saving Equipment, which will enter into force on January 01, 2026. In order to select the optimal design of the ventilation system for enclosed life-boats, a comparative analysis of projects proposed by leading manufacturers of rescue equipment was carried out. To ensure the quality of ventilation, it is proposed to apply an increasing coefficient of 1.1 when using the above mathematical model.