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Simplified Space Conditioning in Low-Load Homes

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TO3 2.1.6: Simplified Space Conditioning

IBACOS anticipates that houses achieving 50% whole-house source energy savings with respect to the Building America 2010 Benchmark (Hendron and Engebrecht 2010a) will be considered "low load." Low load is defined by IBACOS as a house with a thermal enclosure that yields a maximum space heating and cooling load of less than 10 Btu/h/ft2 of conditioned floor area (31.5 W/m2 [1,200 ft2 /ton]). These small loads can be met by systems other than today's typical ducted forced-air systems. For example, distributed fan coils with minimized ducts, terminal fan coil units, or point source units with buoyant force or ventilation-driven distribution may provide sufficient occupant comfort in a low-load home. These systems, which can have lower total installed costs than traditional ducted forced-air systems (Stecher 2011), allow the thermal enclosure characteristics of low-load houses to provide first-cost savings in addition to operational cost savings.

The purpose of this study is to help determine cost-effective solutions for heating and cooling houses that are designed to be energy efficient. This is done by testing the occupant comfort performance of some concepts that may already exist on the market but are not in use by production homebuilders. In some cases, the products are market available, but their use in housing may be a new application. The standards used to assess the performance of the systems in this study are Air Conditioning Contractors of America (ACCA) Manual RS (Rutkowski 1997) and ASHRAE Standard 55-2010 (ASHRAE 2010a).

Citation Formats

TY - DATA AB - TO3 2.1.6: Simplified Space Conditioning IBACOS anticipates that houses achieving 50% whole-house source energy savings with respect to the Building America 2010 Benchmark (Hendron and Engebrecht 2010a) will be considered "low load." Low load is defined by IBACOS as a house with a thermal enclosure that yields a maximum space heating and cooling load of less than 10 Btu/h/ft2 of conditioned floor area (31.5 W/m2 [1,200 ft2 /ton]). These small loads can be met by systems other than today's typical ducted forced-air systems. For example, distributed fan coils with minimized ducts, terminal fan coil units, or point source units with buoyant force or ventilation-driven distribution may provide sufficient occupant comfort in a low-load home. These systems, which can have lower total installed costs than traditional ducted forced-air systems (Stecher 2011), allow the thermal enclosure characteristics of low-load houses to provide first-cost savings in addition to operational cost savings. The purpose of this study is to help determine cost-effective solutions for heating and cooling houses that are designed to be energy efficient. This is done by testing the occupant comfort performance of some concepts that may already exist on the market but are not in use by production homebuilders. In some cases, the products are market available, but their use in housing may be a new application. The standards used to assess the performance of the systems in this study are Air Conditioning Contractors of America (ACCA) Manual RS (Rutkowski 1997) and ASHRAE Standard 55-2010 (ASHRAE 2010a). AU - Poerschke, Andrew A2 - Stecher, Dave DB - Open Energy Data Initiative (OEDI) DP - Open EI | National Renewable Energy Laboratory DO - 10.25984/2204240 KW - building america KW - BuildingAmerica KW - ACCA Manual RS KW - ASHRAE Standard 55 KW - hvac KW - cold KW - residential KW - new construction KW - unoccupied house KW - airflow KW - thermal enclosure KW - cost effectiveness KW - single family detached KW - whole-home KW - comfort KW - space conditioning LA - English DA - 2016/04/27 PY - 2016 PB - Ibacos Innovation T1 - Simplified Space Conditioning in Low-Load Homes UR - https://doi.org/10.25984/2204240 ER -
Export Citation to RIS
Poerschke, Andrew, and Dave Stecher. Simplified Space Conditioning in Low-Load Homes. Ibacos Innovation, 27 April, 2016, Open Energy Data Initiative (OEDI). https://doi.org/10.25984/2204240.
Poerschke, A., & Stecher, D. (2016). Simplified Space Conditioning in Low-Load Homes. [Data set]. Open Energy Data Initiative (OEDI). Ibacos Innovation. https://doi.org/10.25984/2204240
Poerschke, Andrew and Dave Stecher. Simplified Space Conditioning in Low-Load Homes. Ibacos Innovation, April, 27, 2016. Distributed by Open Energy Data Initiative (OEDI). https://doi.org/10.25984/2204240
@misc{OEDI_Dataset_5230, title = {Simplified Space Conditioning in Low-Load Homes}, author = {Poerschke, Andrew and Stecher, Dave}, abstractNote = {TO3 2.1.6: Simplified Space Conditioning

IBACOS anticipates that houses achieving 50% whole-house source energy savings with respect to the Building America 2010 Benchmark (Hendron and Engebrecht 2010a) will be considered "low load." Low load is defined by IBACOS as a house with a thermal enclosure that yields a maximum space heating and cooling load of less than 10 Btu/h/ft2 of conditioned floor area (31.5 W/m2 [1,200 ft2 /ton]). These small loads can be met by systems other than today's typical ducted forced-air systems. For example, distributed fan coils with minimized ducts, terminal fan coil units, or point source units with buoyant force or ventilation-driven distribution may provide sufficient occupant comfort in a low-load home. These systems, which can have lower total installed costs than traditional ducted forced-air systems (Stecher 2011), allow the thermal enclosure characteristics of low-load houses to provide first-cost savings in addition to operational cost savings.

The purpose of this study is to help determine cost-effective solutions for heating and cooling houses that are designed to be energy efficient. This is done by testing the occupant comfort performance of some concepts that may already exist on the market but are not in use by production homebuilders. In some cases, the products are market available, but their use in housing may be a new application. The standards used to assess the performance of the systems in this study are Air Conditioning Contractors of America (ACCA) Manual RS (Rutkowski 1997) and ASHRAE Standard 55-2010 (ASHRAE 2010a).}, url = {https://data.openei.org/submissions/5230}, year = {2016}, howpublished = {Open Energy Data Initiative (OEDI), Ibacos Innovation, https://doi.org/10.25984/2204240}, note = {Accessed: 2025-04-24}, doi = {10.25984/2204240} }
https://dx.doi.org/10.25984/2204240

Details

Data from Apr 27, 2016

Last updated Nov 1, 2023

Submitted Apr 27, 2016

Organization

Ibacos Innovation

Contact

Andrew Poerschke

Authors

Andrew Poerschke

Ibacos Innovation

Dave Stecher

Ibacos Innovation

DOE Project Details

Project Name Building America

Project Number FY14 AOP 1.9.1.19

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