Analysis of Building Envelope Construction in 2003 CBECS

Winiarski, David W.; Halverson, Mark A.; Jiang, Wei

doi:10.2172/1013953

Cited by 20 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These constructions are consistent with DOE's Commercial Building Reference Models (Deru et al 2011). Originally many of these characteristics came from PNNL's analysis of CBECS 2003 information (Winiarski et al 2007).…”

Section: Building Envelopementioning

confidence: 55%

Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010

Thornton

Wang

Cho

et al. 2011

View full text Add to dashboard Cite

This project was conducted by Pacific Northwest National Laboratory (PNNL) in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program (BECP). DOE's BECP supports the upgrading of the building energy codes and standards, and the states' adoption, implementation, and enforcement of those codes and standards as they are incrementally upgraded. Building energy codes and standards set minimum requirements for energy-efficient design and construction for new and renovated buildings, and impact energy use and emissions for the life of buildings. They are part of a broader set of documents which govern the design and construction of buildings for the health and life safety of occupants. Energy codes and standards set a baseline for energy efficiency in construction by establishing minimum energy-efficiency requirements. Improving these documents generates consistent and longlasting energy savings.When the model energy codes and standards for buildings are being updated, BECP reviews the technical and economic basis of these documents. For commercial and multi-family high-rise residential buildings, which are the subject of this report, the basis for the energy codes is the ANSI/ASHRAE/IES 1 Standard 90.1.

show abstract

Section: Building Envelopementioning

confidence: 55%

Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010

Thornton

Wang

Cho

et al. 2011

View full text Add to dashboard Cite

show abstract

“…However, cool tiles were modeled for the "cool roof" scenario. The dimension of windows was 1.8 m × 1.5 m and the window-to-wall ratio equal to 24.4% for the south-facing façade, while 19.8% for the other orientations [56].…”

Section: Zone (Köppen-geiger)mentioning

confidence: 99%

Cool Roof Impact on Building Energy Need: The Role of Thermal Insulation with Varying Climate Conditions

et al. 2019

View full text Add to dashboard Cite

Cool roof effectiveness in improving building thermal-energy performance is affected by different variables. In particular, roof insulation level and climate conditions are key parameters influencing cool roofs benefits and whole building energy performance. This work aims at assessing the role of cool roof in the optimum roof configuration, i.e., combination of solar reflectance capability and thermal insulation level, in terms of building energy performance in different climate conditions worldwide. To this aim, coupled dynamic thermal-energy simulation and optimization analysis is carried out. In detail, multi-dimensional optimization of combined building roof thermal insulation and solar reflectance is developed to minimize building annual energy consumption for heating-cooling. Results highlight how a high reflectance roof minimizes annual energy need for a small standard office building in the majority of considered climates. Moreover, building energy performance is more sensitive to roof solar reflectance than thermal insulation level, except for the coldest conditions. Therefore, for the selected building, the optimum roof typology presents high solar reflectance capability (0.8) and no/low insulation level (0.00-0.03 m), except for extremely hot or cold climate zones. Accordingly, this research shows how the classic approach of super-insulated buildings should be reframed for the office case toward truly environmentally friendly buildings.

show abstract

“…CBECS data (Winiarski et al 2007) indicates that for post-1980 small office buildings, 72% are heated with packaged heating units or furnaces and 76% are cooled by packaged cooling units or residential air-conditioning. Most of the remainder, 20% are heat pumps, with others of various types.…”

Section: Hvac Systemsmentioning

confidence: 99%

Technical Support Document: 50% Energy Savings for Small Office Buildings

Thornton¹,

Wang²,

Huang³

et al. 2010

View full text Add to dashboard Cite

Building Technologies (BT) Program. Buildings account for over 40% of total energy use and over 70% of electricity use in the United States (DOE 2009b). To reduce building energy usage, DOE, through its BT Program, established a strategic goal to "create technologies and design approaches that enable net-zero energy buildings (NZEB) at low incremental cost by 2025". Supporting DOE's goal directly, the project objective is to develop a package of energy efficiency measures (EEMs) that demonstrates the feasibility to achieve 50% energy savings for small office buildings with a simple payback of 5 years or less. The 50% goal is to reduce site energy usage relative to buildings that are built to just meet the minimum requirements of ANSI/ASHRAE/IESNA Standard 90.1-2004 (ANSI/ASHRAE/IESNA 2004) before using renewable energy.PNNL performed the research, analysis, and documentation, referred to as the Technical Support Document (TSD), with inputs from many other contributors and sources of information. An early draft version of the report was circulated to industry experts, practicioners, and another National Laboratory, for in-depth peer reviews. Appendix B documents the review comments and PNNL's responses. For use in this analysis, PNNL developed a prototypical 20,000 ft² (1,858 m 2 ) small office building model that just meets the requirements of Standard 90.1-2004. This is based on the small office prototype that PNNL developed for the 30% Advanced Energy Design Guide for Small Office Buildings . PNNL used the state-of-art energy simulation program -EnergyPlus-to determine the energy savings provided by the package of EEMs. The prototype building is simulated in the same eight climate zones adopted by International Energy Code Council (IECC) and ASHRAE in development of the prevailing energy codes and standards. The climate zones are further divided into moist and dry regions, represented by 16 climate locations. The TSD provides the modeling parameters used in the simulations and the energy and cost-effectiveness results.The advanced EEMs include energy efficiency enhancements to the following building elements:• Exterior wall and roof insulation The TSD report shows that the recommended EEM package achieves a minimum of 50% energy savings in all 16 climate locations, and a national-weighted average energy savings of 56.6% over the United States. Cost-effectiveness analysis to implement the EEMs shows a weighted-average simple payback of 6.8 years. These results are summarized in the table below. In addition, this report provides results for an alternative EEM package substituting a variable air volume (VAV) heating, ventilation and air conditioning (HVAC) system. This alternative package achieves at least 50% energy savings in 7 of the16 climate locations, corresponding to a national-weighted average savings of 48.5%. The VAV EEM ii package has a national weighted-average simple payback of 8.6 years. Other packages of EEMs may also achieve 50% energy savings; this report does not consider all alternatives but ra...

show abstract

Analysis of Building Envelope Construction in 2003 CBECS

Cited by 20 publications

References 0 publications

Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010

Achieving the 30% Goal: Energy and Cost Savings Analysis of ASHRAE Standard 90.1-2010

Cool Roof Impact on Building Energy Need: The Role of Thermal Insulation with Varying Climate Conditions

Technical Support Document: 50% Energy Savings for Small Office Buildings

Contact Info

Product

Resources

About