ISO-16818-2008.pdf

Reference number ISO 16818:2008(E) © ISO 2008 INTERNATIONAL STANDARD ISO 16818 First edition 2008-02-15 Building environment design Energy efficiency Terminology Conception de l'environnement des bâtiments Rendement d'énergie Terminologie Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. 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With the sole exceptions noted above, no other part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2008 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) © ISO 2008 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope. 1 2 Normative references. 1 3 Terms and definitions 2 Bibliography. 32 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) iv © ISO 2008 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16818 was prepared by Technical Committee ISO/TC 205, Building environment design. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) © ISO 2008 All rights reserved v Introduction This International Standard is intended to provide general terms and definitions used in building environment design. Other standards produced by ISO/TC 205 can contain additional definitions more specific to the needs of the individual standard. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 16818:2008(E) © ISO 2008 All rights reserved 1 Building environment design Energy efficiency Terminology 1 Scope This International Standard gives terms and definitions for use in the design of energy-efficient buildings. This International Standard is applicable to new buildings and retrofitted existing buildings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6707-1, Building and civil engineering Vocabulary Part 1: General terms ISO 7345, Thermal insulation Physical quantities and definitions ISO 7730, Ergonomics of the thermal environment Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria ISO 9229, Thermal insulation Vocabulary ISO 9251, Thermal insulation Heat transfer conditions and properties of materials Vocabulary ISO 9288, Thermal insulation Heat transfer by radiation Physical quantities and definitions ISO 9346, Hygrothermal performance of buildings and building materials Physical quantities for mass transfer Vocabulary ISO 13789, Thermal performance of buildings Transmission and ventilation heat transfer coefficients Calculation method ISO 137901), Energy performance of buildings Calculation of energy use for space heating and cooling ISO 15927-6, Hygrothermal performance of buildings Calculation and presentation of climatic data Part 6: Accumulated temperature differences (degree-days) ISO 16813, Building environment design Indoor environment General principles 1) To be published. (Revision of ISO 13790:2004.) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) 2 © ISO 2008 All rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in the normative references and the following apply. 3.1 access hatch door NOTE An access hatch is defined as a door, thereby allowing it to meet less stringent envelope requirements. If not defined as a door, it is necessary that it be insulated as a roof or wall, depending on where it was located. 3.2 accessible admitting close approach; not guarded by locked doors, elevations or other effective means NOTE As applied to equipment; see also readily accessible (3.189). 3.3 adjusted lighting power lighting power, ascribed to a luminaire(s) that has been reduced by deducting a lighting power control credit based on use of an automatic control device(s) 3.4 adopting authority agency or agent that adopts this International Standard 3.5 air-conditioned floor area area equipped with air conditioning equipment measured at floor level from the interior surfaces of the walls See gross conditioned floor area, (3.106). 3.6 air-conditioned space space equipped with air conditioning equipment See air-conditioned floor area (3.5). 3.7 air economizer duct and damper arrangement and automatic control system that together allows a cooling system to supply outside air to reduce or eliminate the need for mechanical cooling during mild or cold weather 3.8 air handling unit encased assembly consisting of sections containing a fan or fans and other necessary equipment to perform one or more of the following functions: circulating, filtration, heating, cooling, heat recovery, humidifying, dehumidifying and mixing of air 3.9 alteration rearrangement, replacement or addition to a building or its systems and equipment NOTE Routine maintenance and service or a change in the building's category shall not constitute an alteration. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) © ISO 2008 All rights reserved 3 3.10 area factor multiplying factor which adjusts the unit power density for spaces of various sizes to account for the impact of room configuration on lighting power utilization 3.11 area of the space A horizontal lighted area of a given space measured from the inside of the perimeter walls or partitions, at the height of the working surface 3.12 authority having jurisdiction agency or agent responsible for enforcing this International Standard 3.13 automatic self-acting, operating by its own mechanism when actuated by some impersonal intervention, such as a change in current strength, pressure, temperature or mechanical configuration 3.14 automatic control devices device capable of automatically turning loads off and on without manual intervention 3.15 average daily temperature average of the temperatures readings over a 24 h period 3.16 ballast device used in conjunction with an electric-discharge lamp to cause the lamp to start and operate under the proper circuit conditions of voltage, current, wave form, electrode heat, etc. 3.16.1 ballast, electronic ballast constructed using electronic circuitry 3.16.2 ballast, hybrid ballast constructed using a combination of magnetic core, insulated wire winding and electronic circuitry 3.16.3 ballast, magnetic ballast constructed with magnetic core and a winding of insulated wire 3.17 ballast efficacy factor ratio of relative light output to the power input 3.18 ballast efficacy factor fluorescent ratio of the ballast factor expressed as a percent to the power input in watts, at specified test conditions 3.19 ballast factor BF ratio of a commercial ballast lamp lumens to a reference ballast lamp lumens, used to correct the lamp lumen output from rated to actual Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) 4 © ISO 2008 All rights reserved 3.19.1 ballast factor ratio of the lumen output of a lamp/ballast combination to the lumen output of the same lamp in combination with a piece of laboratory equipment called a reference reactor NOTE Because a ballast may be designed to operate more than one lamp type, the same ballast model can have more than one ballast factor value. 3.20 below-grade wall see wall (3.244) 3.21 boiler device to raise the temperature of a fluid or generate steam 3.22 boiler capacity rated heat output of the boiler, at the design inlet and outlet conditions and rated fuel or energy input 3.23 budget building design computer representation of a hypothetical design based on the actual proposed building design NOTE This representation is used as the basis for calculating the energy cost budget. 3.24 building construction as a whole, including its envelope and all technical building systems 3.25 building area greatest horizontal area of a building above grade within the outside surface of exterior walls, or within the outside surface of exterior wall and the centreline of fire walls 3.26 building entrance any doorway set of doors, turnstiles or other form of portal that is ordinarily used to gain access to the building by its users and occupants 3.27 building energy cost computed annual energy cost of all purchased energy for the building 3.28 building envelope elements of a building that enclose conditioned spaces through which thermal energy can be transferred to or from the exterior, or to or from unconditioned spaces 3.28.1 building envelope, exterior sheltered elements of a building that separate conditioned spaces from the exterior 3.28.2 building envelope, semi-exterior sheltered elements of a building that separate conditioned space from unconditioned space (as far as it is not designed for human occupancy) or that enclose semi-heated spaces through which thermal energy can be transferred to or from the exterior, or to or from unconditioned spaces, or to or from conditioned spaces Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 03:48:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16818:2008(E) © ISO 2008 All rights reserved 5 NOTE 1 Building envelope defines the surfaces that require insulation or weather-stripping. The outer shell of the building is not necessarily the same as the building envelope, particularly where the building contains semi-heated or unconditioned spaces. NOTE 2 In some cases, the designer can determine the location of the exterior building envelope by the location that they place the insulation. For instance, it is not uncommon for a stairwell to be at the outside edge of the building. If tha