Total Transfer of Vapour and Liquid Heat Transfer A REVIEW OF COMBINED EQUATIONS FOR HEAT AND MASS TRANSFER 3.1 Heat and Mass Flux 3.2 Conservation Equation 3.3 Review of Relevant Equations in Literature 4 DEVELOPMENT OF APPROPRIATE HEAT AND MASS TRANSFER EQUATIONS 4.1 Continuity Equation 4.2 Energy Equation 4.2.1 Situations of Medium/High RH and Hygroscopic Materials 4.2.2 Situations of Low RH or Non-Hygroscopic Materials 5 DETERMINATION OF THE MASS FLUX FOR INDIVIDUAL COMPONENTS 5.1 Vapour

more »

... Liquid Water flux 5.2 Inert Gas 6 EXPERIMENTAL EVALUATION OF MATERIAL MOISTURE 56 PROPERTIES 6.1 Vapour and Liquid Water Transfer Coefficients 6.1.1 The Standard Isothermal Cup Tests 6.1.2 The Pressure Chamber Tests 6.1.3 Comparison of Results 6.2 Material Sorption Isotherms 6.2.1 Experimental Procedure 6.2.2 Results and Their Interpretation 6.3 Investigation of Thermal Diffusion Effects 6.3.1 Experimental Procedure 6.3.2 Experimental Results and Analysis 7 COMPUTER PREDICTION MODEL 102 7.1 The Finite Difference Method 102 7.2 Boundary Conditions 110 7.3 Stability and Convergence of Numerical Solutions 7.4 Computer Solution Strategy 117 8 EXAMPLES OF COMPUTER PROGRAM OPERATION 8.1 Simulation of Single Layer Partitions 8.1.1 Wood Partition Results 8.1.2 Brick Partition Results 8.2 Simulation of a Standard Timber Framed Wall 8.2.1 Moisture Content and Temperature Transients 8.2.2 Moisture Content and Temperature Profiles 8.2.3 Moisture Flow Rates 8.3 Simulation of a Standard Masonary Wall 8.3.1 Moisture Content and Temperature Variation with Time 8.3.2 Moisture Content and Temperature Profiels 8.3.3 Moisture Flow Rates 9 CONCLUSIONS AND RECOMMENDATIONS REFERENCES APPENDIX ONE -DERIVATION OF KELVIN'S EQUATION APPENDIX TWO -EXPERIMENTAL RESULTS APPENDIX ThREE -BOUNDARY CONDITIONS APPLIED TO THE COMPUTER MODEL.