地面密闭舱内人体代谢的物理模拟方法

目的 在地面密闭模拟舱内，利用物理方法模拟人体代谢的几项主要指标，为在地面试验条件下考核和评价航天器舱内环境控制与生命保障系统的性能，提供人体代谢试验负荷。方法 利用物理方法并结合地面模拟试验和环境控制系统的特点，对人体代谢指标进行单元模块化模拟。研制出以物理方法为基础的人体代谢地面模拟装置，为ECLSS在地面模拟试验舱内进行性能考核和评价试验提供必要条件。结果 在地面密闭模拟舱内，比较准确地模拟了人体代谢的耗氧量、产二氧化碳量、产湿量及产热量4项生理代谢指标。结论 利用物理方法模拟人体代谢负荷是可行的，该方法具有较高的精度和控制能力，通过人体代谢地面模拟装置连续向模拟试验舱内提供人体代谢的负荷量，可以验证和评价环境控制系统对舱内大气环境的控制能力。

Physical Simulation of Human Body Metabolism in Sealed Module on the Ground

Objective To provide a test platform for experimental verification of environmental control and life support system (ECLSS) of manned spacecraft on the ground. Method According to characters of ECLSS ground simulation test, simulation of human body metabolism was divided into different units, and a ground metabolic simulator was designed. Result The ground metabolic simulator accurately simulated human body metabolic oxygen consumption, carbon dioxide production, water and heat productions in the sealed module. Conclusion The physical method for simulating human body metabolism is feasible and has the advantages of high precision and easiness of control It can be used for verifying and appraising the function of ECLSS.