Building America Performance Analysis Procedures: Revision 1

Hendron, Robert; Anderson, R.; Judkoff, R.; Christensen, C.; Eastment, M.; Norton, Paul; Reeves, Paul; Hancock, E.

doi:10.2172/15007873

“…In accordance with the Building America Performance Analysis Procedures [7], the ZEH was compared to the BA Benchmark and Builder Standard Practice (BSP). The BSP specifications for Ideal Homes were based on the Eagle Cliff community built to ENERGY STAR standards in Norman, Oklahoma, along with information provided by Ideal Homes.…”

Section: Whole-house Simulationsmentioning

confidence: 99%

Field Evaluation of a Near Zero Energy Home in Oklahoma

Hendron

¹

,

Hancock²,

Barker³

et al. 2007

ASME 2007 Energy Sustainability Conference

1

0

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The authors evaluated a Zero Energy Home (ZEH) built by Ideal Homes in Edmond, Oklahoma, that included an extensive package of energy-efficient technologies and a photovoltaic (PV) array for site electricity generation. The ZEH was part of a Building America (BA) research project in partnership with the Building Science Consortium to exhibit high efficiency technologies while keeping costs within the reach of average home buyers, and was a modified version of a production 1584-ft2, three-bedroom, single-story, slab-on-grade design with attached garage. The home included a tight, well-insulated envelope, an energy recovery ventilator, high-performance windows, tankless gas water heater, efficient lights and appliances, and a ground source heat pump (GSHP). We conducted a series of short-term tests beginning in August 2005, and have collected long-term data under occupied conditions since February 2006. The GSHP performance was disappointing until the outdoor unit was replaced, after which time the efficiency began to meet expectations. However, the electricity use of the replacement unit was higher than expected because of an unusually low cooling setpoint. Based on the measured test results, the predicted whole-house energy savings compared to the BA Benchmark was 96%, with savings of 55% for efficiency measures alone.

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“…Figures 10 and 11 show the predicted contribution of the solar storage tank toward each end-use, based on the DHW volume and operating profile specified for Building America analysis [7]. Figure 10 shows the results for the system as installed, and Figure 11 shows the effect of reducing the minimum supply temperature for the hydronic floor slab to 90ºF (32ºC), and disconnecting the heating coil loop from the solar tank.…”

Section: Solar Water Heatermentioning

confidence: 99%

“…Inputs to the model were derived from the design specifications, short-term test results, TRNSYS simulations, and appliance spreadsheet calculations presented earlier in this paper. Simulations were performed in accordance with the BA Performance Analysis Procedures [7]. Graphical representations of the model generated using eQuest are shown in Figures 12 and 13.…”

Section: Annual Energy Simulationsmentioning

confidence: 99%

“…Source energy, or primary energy, is defined as the energy delivered to the house (site energy) plus the energy required for generation, transmission and distribution. The national average site-to-source energy multiplier for electricity is about 3.16, and for natural gas is about 1.02 [7]. Table 5 indicates that energy for space cooling and DHW are nearly eliminated.…”

Section: Annual Energy Simulationsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of a High-Performance Solar Home in Loveland, Colorado

Hendron

¹

,

Eastment

²

,

Hancock³

et al. 2006

Journal of Solar Energy Engineering

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Building America (BA) partner McStain Neighborhoods built the Discovery House in Loveland, Colorado, with an extensive package of energy-efficient features, including a high-performance envelope, efficient mechanical systems, a solar water heater integrated with the space-heating system, a heat-recovery ventilator (HRV), and ENERGY STAR™ appliances.The National Renewable Energy Laboratory (NREL) and Building Science Consortium (BSC) conducted short-term field-testing and building energy simulations to evaluate the performance of the house. These evaluations are utilized by BA to improve future prototype designs and to identify critical research needs.The Discovery House building envelope and ducts were very tight under normal operating conditions. The HRV provided fresh air at a rate of about 75 cfm (35 l/s), consistent with the recommendations of ASHRAE Standard 62.2. The solar hot water system is expected to meet the bulk of the domestic hot water (DHW) load (>83%), but only about 12% of the space-heating load. DOE-2.2 simulations predict wholehouse source energy savings of 54% compared to the BA Benchmark [1]. The largest contributors to energy savings beyond McStain's standard practice are the solar water heater, HRV, improved air distribution, high-efficiency boiler, and compact fluorescent lighting package.

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“…Because there is also a load on the storage tank to heat DHW, the tank will rarely reach 110ºF (43ºC) and, therefore, only a small fraction of the space-heating load is likely to be met by solar energy. Figures 10 and 11 show the predicted contribution of the solar storage tank toward each end-use, based on the DHW volume and operating profile specified for Building America analysis [7]. Figure 10 shows the results for the system as installed, and Figure 11 shows the effect of reducing the minimum supply temperature for the hydronic floor slab to 90ºF (32ºC), and disconnecting the heating coil loop from the solar tank.…”

Section: Solar Water Heatermentioning

confidence: 99%

Evaluation of a High-Performance Solar Home in Loveland, Colorado

Hendron

¹

,

Eastment

²

,

Hancock³

et al. 2005

Solar Energy

1

0

View full text Add to dashboard Cite

Building America (BA) partner McStain Neighborhoods built the Discovery House in Loveland, Colorado, with an extensive package of energy-efficient features, including a high-performance envelope, efficient mechanical systems, a solar water heater integrated with the space-heating system, a heat-recovery ventilator (HRV), and ENERGY STAR™ appliances.The National Renewable Energy Laboratory (NREL) and Building Science Consortium (BSC) conducted short-term field-testing and building energy simulations to evaluate the performance of the house. These evaluations are utilized by BA to improve future prototype designs and to identify critical research needs.The Discovery House building envelope and ducts were very tight under normal operating conditions. The HRV provided fresh air at a rate of about 75 cfm (35 l/s), consistent with the recommendations of ASHRAE Standard 62.2. The solar hot water system is expected to meet the bulk of the domestic hot water (DHW) load (>83%), but only about 12% of the space-heating load. DOE-2.2 simulations predict wholehouse source energy savings of 54% compared to the BA Benchmark [1]. The largest contributors to energy savings beyond McStain's standard practice are the solar water heater, HRV, improved air distribution, high-efficiency boiler, and compact fluorescent lighting package.

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Building America Performance Analysis Procedures: Revision 1

Abstract: Bringing you a prosperous future where energy is clean, abundant, reliable, and affordable

Cited by 16 publications

References 4 publications

Field Evaluation of a Near Zero Energy Home in Oklahoma

Field Evaluation of a Near Zero Energy Home in Oklahoma

Evaluation of a High-Performance Solar Home in Loveland, Colorado

Evaluation of a High-Performance Solar Home in Loveland, Colorado

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