Ashrae standard 55-2004 thermal environmental conditions for human occupancy

Ashrae 552004 identifies the factors of thermal comfort and the process for developing comfort criteria for a building space and its occupants. Ashrae standard 552004 thermal environmental conditions. The standard specifies conditions of the indoor thermal environment that occupants. Ashrae, thermal environmental conditions for human occupancy. Abstract the usa experience with ashrae standard 552004 thermal environmental conditions for human occupancy 1 ashrae 552004 is discussed in relation to key questions including. Thermal environmental conditions for human occupancy ashrae.

Learn what is ashrae 55 standard, the parameters that comply with thermal comfort. Ufad systems, however, usually involve greater variability of thermal conditions over both space and time. Ansiashrae 552004 thermal environmental conditions for. Thermal environmental conditions for human occupancy american society of heating, refrigerating and airconditioning engineers american national standards institute. It was first published in 1966, and since 2004 has been updated every three to six years. Incorporating many of these advances, standard 552004, thermal environmental conditions for human occupancy, was recently published after completingfour. Standard 552004, thermal environmental conditions for human occupancy, is a revision of standard 551992. This standard can be used to evaluate indoor thermal environments, whether controlled or not.

These values are designed to meet the needs of 80% of individuals which means a few people will feel uncomfortable even if these values are met. Meeb chapter 2, comfort and design strategies flashcards. The environmental factors addressed in this standard are temperature, thermal radiation, humidity, and air speed. Ashrae standard ansiashrae standard 552010 supersedes ansiashrae standard 552004 includes ansiashrae addenda listed in appendix i thermal environmental conditions for human occupancy see appendix i for approval dates by the ashrae standards committee, the ashrae board of directors, and the american national standards institute. The 2017 edition of ansi ashrae standard 55 incorporates seven published addenda to the 20 edition, and provides three. Ashrae standard ansiashrae standard 552010 supersedes ansi ashrae standard 55 2004 includes ansi ashrae addenda listed in appendix i thermal environmental conditions for human occupancy see appendix i for approval dates by the ashrae standards committee, the ashrae board of directors, and the american national standards institute. Ashrae standard 55 2004 thermal environmental conditions.

Ansiashrae 552017 is the current edition of the american national standard for thermal environmental conditions for human occupancy. The standard specifies conditions in which a specified fraction of the occupants will find the environment thermally acceptable. Ansi ashrae 552017 is the current edition of the american national standard for thermal environmental conditions for human occupancy, being the most recently updated in a long line of publications beginning with the standard s initial publication back in 1966. The 2010 edition of ansiashrae standard 55 combines standard 552004 and the ten approved and published addenda to the 2004 edition into one easytouse, consolidated standard. This project committee is responsible for maintaining ashrae standard 55, thermal environmental conditions for human occupancy ansi approved this standard specifies the combinations of indoor space environment and personal factors that will produce thermal environmental conditions acceptable to 80% or more of the occupants within a space. Thermal comfort requirements are not included in this standard see ansiashrae standard 552004, thermal environmental conditions for human occupancy. The standard outlines conditions for environmental thermal acceptability. Ansiashrae addenda i and k to ansiashrae standard 552004.

Ashrae standard thermal environmental conditions for human. Interpretation ic 5520041 of ansiashrae standard 55. Larry spielvogel, pe, engineer, 343 valley forge circle, king of prussia, pa 19406. Ansiashrae standard 552004 supersedes ansiashrae standard 551992 thermal environmental conditions for human occupancy approved by the ashrae standards committee on january 24, 2004. Index ashrae 55 thermal environmental conditions for.

Thermal environmental conditions for human occupancy. Ashrae, 2004, thermal environmental conditions for human occupancy, ashrae standard 552004, american society of heating, refrigerating and airconditioning engineers, inc. Thermal environmental conditions for human occupancy date approved. Thermal environmental conditions for human occupancy is an american national standard published by ashrae that establishes the ranges of indoor environmental conditions to achieve acceptable thermal comfort for occupants of buildings. Thermal environmental conditions for human occupancy is an american national standard published by ashrae that.

Future steps away from energy intensive design stephen turner, p. It is intended that all of the criteria in this standard be applied together since comfort in the indoor environment is. This means that an employee wearing a normal amount of clothing feels neither too cold nor too warm. This request for interpretation refers to the requirements in ansi ashrae standard 55 2004, sections 5. Ansiashrae standard 552010 supersedes ansiashrae standard 552004 includes ansiashrae addenda listed in appendix i thermal environmental conditions for human occupancy see appendix i for approval dates by the ashrae standards committee, the ashrae board of directors, and the american national standards institute.

As a second source of guidance, the american society of heating, refrigerating, and airconditioning engineers ashrae standard 552004, thermal environmental conditions for human occupancy, addresses thermal comfort in an office environment. The 2017 edition of ansiashrae standard 55 incorporates seven published addenda to the 20 edition, and provides three compliance methods. Pdf thermal environmental conditions for human occupancy. Standard 55 thermal environmental conditions for human. Ashrae standard ansi ashrae addendum h to ansi ashrae standard 55 2004 thermal environmental conditions for human occupancy approved by the ashrae standards committee on june 26, 2010. Ansiashrae standard 552004 supersedes ansiashrae standard 55 1992 thermal environmental conditions for human occupancy approved by the. The 2017 edition replaces the 20 edition, specifically incorporating the seven. Thermal environmental conditions for human occupancy ashrae 2004 earlier versions of standard 55 were based on the assumption of a wellmixed and uniformly conditioned environment. These values are based on the american society of heating, refrigerating, and air conditioning engineers ashrae standard 55 2004 thermal environmental conditions for human occupancy. Ansi ashrae standard 55 2004 thermal environmental conditions for human occupancy approved by the ashrae standards committee on june 26, 2010. Ansiashrae standard thermal environmental conditions for human occupancy is an 5 december jump up to. According to the society, ansiashrae standard 552004, thermal environmental conditions for human occupancy, provides a simple method of compliance for commonlydesigned space types, a calculation method that applies to a broader range of space types, and a new adaptive method for naturally ventilated spaces in certain climate areas.

Ashrae 552004 january 2004 standard 552004 thermal. This includes a new adaptive comfort standard acs that. Standard 55 specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces. Ashrae standard 55 2004 thermal environmental conditions for human occupancy. Ashrae standard thermal environmental conditions for. Approved by the ashrae standards committee on janu ary 24, 2004. Ashrae standard 552004 thermal environmental conditions for human occupancy is a standard that provides minimum requirements for acceptable thermal indoor. It is intended that all of the criteria in this standard be applied together since comfort in. American national standards institute ansiashrae standard 552004.

In other words users of the residential ventilation and indoor air quality standard are advised to use ashrae 55 for thermal comfort in residences. Ashrae standard 552004 thermal environmental conditions for human occupancy 2. Ashrae standard 552010 thermal environmental conditions. Ansiashrae 552004 thermal environmental conditions for human occupancy.

Standard 55 2004, thermal environmental conditions for human occupancy, is a revision of standard 551992. Ansiashrae 552010 thermal environmental conditions for. Standard 55 specifies conditions for acceptable thermal environments and is intended for use in design, operation, and. Thermal environmental conditions for human occupancy share this ansi ashrae standard 5520, thermal environmental conditions for human occupancy, specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces. Standard 552004 thermal environmental conditions for human occupancy ansi approved. Ansiashrae standard 552004 supersedes ansiashrae standard 551992 thermal environmental conditions for human occupancy approved by the ashrae standards committee on janu ary 24, 2004. Indoor space environmental and personal factors that will produce thermal environmental. The standard specifies the combinations of indoor space environment and personal factors that will produce thermal environmental conditions acceptable to 80% or more of the occupants within a space. Ashrae standard ansiashrae addendum h to ansiashrae standard 552004 thermal environmental conditions for human occupancy approved by the ashrae standards committee on june 26, 2010. Identifies the factors of thermal comfort and the process for developing comfort criteria for a building space and its occupants. Ashrae standard 622001 ventilation for acceptable indoor air. It was first published in 1966, and since 2004 has been updated every three to six.

Ansiashrae standard 5520, thermal environmental conditions for human occupancy, specifies conditions for acceptable thermal environments and is. Thermal environmental conditions for human occupancy specifies methods for determining the values required to achieve acceptable thermal conditions in building environments. Standard 552004, thermal environmental conditions for human. Ashrae standard 552004 thermal environmental conditions for human occupancy is an important standard that specifies the combinations of indoor space environment and personal factors that will produce thermal environmental conditions acceptable to 80% or more of the occupants within a space. Substantial progress in our understanding of human response to thermal environments has been made since standard 55 1992, including the amendment 5595a. This request for interpretation refers to the requirements in ansiashrae standard 552004, sections 5.