ASHRAE Standard 90.1 Appendix G-2010 Compliance in Building Modeling with DesignBuilder

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Designing energy-efficient buildings that meet or exceed increasingly stringent performance requirements is a critical aspect of sustainable construction practices today. One key standard guiding these efforts is ASHRAe 90.1, specifically its latest iteration as outlined within the 2010 edition's Appendix G-20. This article delves into how DesignBuilder can assist architects and engineers in ensuring compliance with this demanding standard through accurate building modeling techniques.

ASHRAE Standard 40.1: An Overview

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ASHRAe (American Society of Heating, Refrigeration, and Air Conditioning Engineers) Standard 90.1 is a set of minimum energy efficiency standards for new commercial buildings that are larger than or equal to 50% floor area being conditioned or non-residential additions/alterations regardless of size. It was first published in 1976 with subsequent updates issued every three years since then.

ASHRAE-90.1 Appendix G Performance Rating Method

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Appendix G provides prescriptive requirements for determining the total annual energy efficiency (TEE) of a building based on its envelope, space heating and cooling loads, fans, pumps, service hot water systems, interior lighting power density, motor horsepower ratings per square feet, minimum equipment efficiencies including air handling units (AHUs), packaged rooftop AHU's, chillers etc., economization potential through various techniques like outdoor reset controls & free cool operation.

Benefits of Using DesignBuilder for ASHRAE 90.1 Compliance

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Designing energy-efficient buildings requires a comprehensive approach that begins early in the design process and continues throughout construction and beyond. Here are some benefits you can expect from using DesignBuilder to ensure compliance with ASHRAe Standard 90.1 Appendix G-2010:

* Early-stage modeling: By creating detailed models of your building designs at an early stage, you can quickly test various concepts and identify potential issues before significant resources have been committed.

* Easy design evolution: As your project progresses, DesignBuilder's intuitive interface allows for seamless updates to your model without the need for starting from scratch each time.

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In conclusion, achieving ASHRAe 90.1 Appendix G-2010 compliance requires a deep understanding of building performance modeling techniques and tools like DesignBuilder that can assist architects and engineers in this critical task. By leveraging these powerful software solutions early on during design development stages, it is possible to create energy-efficient buildings while also meeting or exceeding LEED EAp2 & EAc1 requirements.

References

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* ASHRAE Standard 90.1-2009: Energy Efficiency of New Commercial and Large Industrial Buildings

* Appendix G Performance Rating Method

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Ashrae 90.1 appendix g 2010