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This paper provides a simple tool for estimating the heat of evaporation in the drying process, and it can also be used to estimate the total energy consumption in the drying process, taking the total energy consumption as the goal, an optimal drying curve can be found through the optimization calculation, and then the drying process can be optimized and adjusted. The focus of our next study is the quantitative study of this model applied for optimal operation during paper drying. Author Contributions: Conceptualization, X.C. and Q.Z.; methodology, X.C.; software, X.C.; vali- dation, X.C., Q.Z. and Y.D.; formal analysis, X.C.; investigation, X.C. and Y.D.; resources, X.C.; data curation, X.C.; writing—original draft preparation, X.C.; writing—review and editing, X.C.; visual- ization, Y.D.; supervision, Q.Z.; project administration, Q.Z.; funding acquisition, Q.Z. All authors have read and agreed to the published version of the manuscript. Funding: This work was supported from the Basic Public Research Project of Zhejiang Province (LQ18B060003), the Research Fund Program of Guangdong Provincial Key Lab of Green Chemical Product Technology (GC201809), the Quzhou science and technology plan project (2018ASA90140),
the Key R & D plan of Zhejiang Province (2021C02031). Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: The study did not report any data. Conflicts of Interest: The authors declare no conflict of interest.
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