ASHRAE Standard 90.1 - TIÊU CHUẨN ASHRAE

ASHRAE Standard 90.1 is an energy conservation code, not a building code. However, if adopted by a local jurisdiction, its provisions do have the force of law and as such we as design professionals are required to provide drawings and specifications that are in compliance with its provisions. In addition to ASHRAE Standard 90.1 there is the International Energy Conservation Code (IECC), published by the International Code Council, as well as multiple versions, or years of each. Currently published versions of ASHRAE Standard 90.1 are 90.1-1989, 90.1-1999, 90.1-2001, 90-1-2004 and 90.1-2007. Additionally ASHRAE publishes addenda, some of which may be adopted by a local jurisdiction, a users’ manual as well as manages interpretations of the standard.


SCOPE

ASHRAE Standard 90.1, as stated on its cover, is applicable to all buildings except low rise residential. What that means is typically all commercial buildings and all residential buildings four stories and taller, including renovations and alterations. There are exceptions for industrial and historic buildings, as well as for specific types of renovations particular to a specific system such as replacing light fixtures in part of a space.

ORGANIZATION

The standard is organized into five major sections or chapters, each dealing with envelope, mechanical, service water heating, power, lighting systems respectively. Additionally, there are sections on enforcement, definitions, alternative compliance, and climate zone maps and appendices that provide additional information on topics within the 12 chapters. The most widely used of these is Appendix G, which deals with how to create a computer simulation of a proposed design for use with green building rating systems such as LEED. The primary compliance options consist of some mandatory provisions and a prescriptive type of option, i.e. there is a particular value and the building must comply. For example, in Chicago for buildings with wood stud construction 16” o.c., the required wall insulation is R-13. There are also modifiers to the prescriptive values, such as if you have an overhang over a window you are allowed to decrease the allowable fenestration solar heat gain coefficient (SHGC). In addition to the Prescriptive Option, for Section 5 – Envelope there is a trade-off option to allow the designer to trade envelope provisions amongst each other; that is, you could trade better performing glass for more glass. Finally, there is performance option that will allow one to input all the variables of the building, envelope, mechanical and lighting into a whole building simulation program to determine compliance by comparison to a baseline building. This option allows the design team to trade better lighting for less efficient mechanical systems or wall insulation.

LINK DOWNLOAD

ASHRAE Standard 90.1 (2004)

ASHRAE Standard 90.1 (2007)

ASHRAE Standard 90.1 (2010)

ASHRAE Standard 90.1 (2013)

ASHRAE Standard 90.1 is an energy conservation code, not a building code. However, if adopted by a local jurisdiction, its provisions do have the force of law and as such we as design professionals are required to provide drawings and specifications that are in compliance with its provisions. In addition to ASHRAE Standard 90.1 there is the International Energy Conservation Code (IECC), published by the International Code Council, as well as multiple versions, or years of each. Currently published versions of ASHRAE Standard 90.1 are 90.1-1989, 90.1-1999, 90.1-2001, 90-1-2004 and 90.1-2007. Additionally ASHRAE publishes addenda, some of which may be adopted by a local jurisdiction, a users’ manual as well as manages interpretations of the standard.


SCOPE

ASHRAE Standard 90.1, as stated on its cover, is applicable to all buildings except low rise residential. What that means is typically all commercial buildings and all residential buildings four stories and taller, including renovations and alterations. There are exceptions for industrial and historic buildings, as well as for specific types of renovations particular to a specific system such as replacing light fixtures in part of a space.

ORGANIZATION

The standard is organized into five major sections or chapters, each dealing with envelope, mechanical, service water heating, power, lighting systems respectively. Additionally, there are sections on enforcement, definitions, alternative compliance, and climate zone maps and appendices that provide additional information on topics within the 12 chapters. The most widely used of these is Appendix G, which deals with how to create a computer simulation of a proposed design for use with green building rating systems such as LEED. The primary compliance options consist of some mandatory provisions and a prescriptive type of option, i.e. there is a particular value and the building must comply. For example, in Chicago for buildings with wood stud construction 16” o.c., the required wall insulation is R-13. There are also modifiers to the prescriptive values, such as if you have an overhang over a window you are allowed to decrease the allowable fenestration solar heat gain coefficient (SHGC). In addition to the Prescriptive Option, for Section 5 – Envelope there is a trade-off option to allow the designer to trade envelope provisions amongst each other; that is, you could trade better performing glass for more glass. Finally, there is performance option that will allow one to input all the variables of the building, envelope, mechanical and lighting into a whole building simulation program to determine compliance by comparison to a baseline building. This option allows the design team to trade better lighting for less efficient mechanical systems or wall insulation.

LINK DOWNLOAD

ASHRAE Standard 90.1 (2004)

ASHRAE Standard 90.1 (2007)

ASHRAE Standard 90.1 (2010)

ASHRAE Standard 90.1 (2013)

Chuyên mục: C. Bài giảng C. Bài giảng chuyên ngành Nhiệt Lạnh (Heat and Refrigeration) C. Bài giảng kỹ thuật