This International Standard specifies a method for calculating the density of the water vapour flow rate in cold pipe insulation systems, and the total amount of water diffused into the insulation over time. The calculation method presupposes that water vapour can only migrate into the insulation system by diffusion, with no contribution from airflow. It also assumes the use of homogeneous, isotropic insulation materials so that the water vapour partial pressure is constant at all points equidistant from the axis of the pipe.<\/p>\n
This International Standard is applicable when the temperature of the medium in the pipe is above 0 \u00b0C. It applies to pipes inside buildings as well as in the open air.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Section sec_1 Section sec_2 Section sec_3 Section sec_3.1 Section sec_3.2 Section sec_3.3 1\tScope 2\tNormative references 3\tTerms, definitions and symbols <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Table tab_1 <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Section sec_4 Section sec_4.1 Section sec_4.2 4\tCalculation formulae 4.1\tGeneral 4.2\tHomogeneous insulation <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Section sec_4.3 Section sec_4.4 4.3\tMulti-layer insulation systems 4.4\tSystems with capacity for drying <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Section sec_5 5\tBoundary conditions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Section sec_6 Section sec_6.1 Section sec_6.2 Section sec_6.3 6\tCalculation procedure 6.1\tGeneral 6.2\tCalculation of rate of condensation in single homogenous insulation layer 6.3\tCalculation of rate of condensation in multi-layer insulation system <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Table tab_d Figure fig_1 <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex sec_A Annex sec_A.1 Annex sec_A.2 Annex\u00a0A \n(informative)<\/p>\n Examples <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex sec_A.3 <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Annex sec_B Annex sec_B.1 Annex\u00a0B \n(informative)<\/p>\n System with capacity for drying and experimental determination of evaporation rate from surface of wet wick fabric <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Table tab_f Figure fig_B.1 Annex sec_B.2 Annex sec_B.2.1 Annex sec_B.2.2 <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex sec_B.2.3 Annex sec_B.2.4 <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Table tab_h Figure fig_B.2 <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Reference ref_5 Reference ref_6 Reference ref_7 Reference ref_8 Reference ref_9 Reference ref_10 Reference ref_11 Reference ref_12 Reference ref_13 Reference ref_14 Reference ref_15 Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Hygrothermal performance of building equipment and industrial installations. Calculation of water vapour diffusion. Cold pipe insulation systems<\/b><\/p>\n |