Gas quantity prediction method, factory operation method, and gas quantity prediction device

A gas amount prediction method for predicting the amount of gas generated in a plant includes a generation amount calculation step in which the generation amount of gas that is actually usable is calculated using a learning model that learns the relationship between the generation amount of gas and the usage amount of gas in past operation data. 一种气体量预测方法，其是对工厂中产生的气体的量进行预测的方法，其包括：产生量计算步骤，其中，使用学习了过去的操作数据中的气体的产生量与气体的使用量的关系的学习模型，计算实际可使用的气体的产生量。