Numerical method for predicting heat and mass transfer law of tobacco shreds in drum dryer
A drum silk drying machine and heat and mass transfer technology, applied in the fields of tobacco and chemical industry, can solve the problems of heavy workload, high energy consumption, high cost, etc., to improve production efficiency, high measurement accuracy, reduce production energy consumption and environmental protection pollution effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0027] Such as figure 2 As shown, the drum is divided into several micro-units along the axial direction, based on the following heat conduction, convective heat transfer and convective mass transfer formulas, the energy and mass conservation equations are set for the heat and mass transfer process in each unit, assuming that the shredded tobacco in the drum is in a stable state flow state;
[0028] ΣQ in =∑Q out (1)
[0029] Q 1 (i-1)+Q 2 (i-1)+H p (i-1)+H g (i-1)=H p (i)+H g (i) (2)
[0030] Q 1 (i-1)=α 1 f 1 (T w -T p (i-1)) (3)
[0031] Q 2 (i-1)=α 2 f 2 (T w -T g (i-1)) (4)
[0032] h p (i-1)=W dp (C dp +X(i-1)C H2O )(T p (i-1)-T ref ) (5)
[0033] h g (i-1)=W dg (C dg +Y(i-1)C V )(T g (i-1)-T ref )+W dg Y(i-1)r (6)
[0034]
[0035]
[0036] Among them, F 1 The range is 1 / 2 to 2 / 3 of the surface area of the drum, here we take 0.6; F2 Generally, it is 1 / 3~1 / 2 of the surface area of the drum, and 0.4 is taken here;
[0037]...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com