每次算换热器的时候,如果没有相变,总是会提示单相流股的报警问题。有什么解决办法吗? The value specified for Application under Problem Definition | Application Options for stream 1 indicates that the stream is a single phase. If properties have been generated using Aspen Properties or BJAC, they are obtained for that single phase even if the package would have otherwise returned properties for other phases.