{"id":222632,"date":"2024-10-19T14:27:18","date_gmt":"2024-10-19T14:27:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-137892017\/"},"modified":"2024-10-25T08:04:01","modified_gmt":"2024-10-25T08:04:01","slug":"bs-en-iso-137892017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-137892017\/","title":{"rendered":"BS EN ISO 13789:2017"},"content":{"rendered":"

This document specifies a method and provides conventions for the calculation of the steady\u2010state transmission and ventilation heat transfer coefficients of whole buildings and parts of buildings. It is applicable both to heat loss (internal temperature higher than external temperature) and to heat gain (internal temperature lower than external temperature). For the purpose of this document, the heated or cooled space is assumed to be at uniform temperature.<\/p>\n

Annex C provides a steady\u2010state method to calculate the temperature in unconditioned spaces adjacent to conditioned spaces.<\/p>\n

\n

NOTE   TABLE 1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.<\/p>\n<\/blockquote>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
5<\/td>\nEndorsement notice <\/td>\n<\/tr>\n
8<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
15<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
16<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
18<\/td>\n4 Symbols and subscripts
4.1 Symbols
4.2 Subscripts <\/td>\n<\/tr>\n
19<\/td>\n5 Description of the method
5.1 Output
5.2 General description
6 Calculation of heat transfer coefficients
6.1 Output data <\/td>\n<\/tr>\n
21<\/td>\n6.2 Calculation time intervals
6.3 Input data <\/td>\n<\/tr>\n
22<\/td>\n6.4 Measurement of dimensions
6.5 Boundaries of conditioned space <\/td>\n<\/tr>\n
24<\/td>\n7 Transmission heat transfer coefficient
7.1 Basic formula
7.2 Mean thermal transmittance of building fabric <\/td>\n<\/tr>\n
25<\/td>\n7.3 Direct transmission between internal and external environments <\/td>\n<\/tr>\n
26<\/td>\n7.4 Transmission heat transfer coefficient through the ground
7.5 Transmission heat transfer coefficient through unconditioned spaces <\/td>\n<\/tr>\n
27<\/td>\n7.6 Heat transfer to adjacent buildings <\/td>\n<\/tr>\n
28<\/td>\n8 Ventilation heat transfer coefficient
9 Additional conventions
9.1 General
9.2 Transmission heat transfer coefficient through the ground
9.3 Variable thermal transmittance
9.4 Air change rates of unconditioned spaces <\/td>\n<\/tr>\n
29<\/td>\n9.5 Conventional values of surface heat transfer coefficient <\/td>\n<\/tr>\n
30<\/td>\n10 Report <\/td>\n<\/tr>\n
31<\/td>\nAnnex\u00a0A (normative) Input and method selection data sheet \u2014 Template <\/td>\n<\/tr>\n
34<\/td>\nAnnex\u00a0B (informative) Input and method selection data sheet \u2014 Default choices <\/td>\n<\/tr>\n
37<\/td>\nAnnex\u00a0C (normative) Temperature in an unconditioned space <\/td>\n<\/tr>\n
38<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Thermal performance of buildings. Transmission and ventilation heat transfer coefficients. Calculation method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":222634,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1265,2641],"product_tag":[],"class_list":{"0":"post-222632","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-120-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/222632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/222634"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=222632"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=222632"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=222632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}