Recommended Ventilation Strategies for Energy-Efficient Production Homes

Roberson, J. Alan; Brown, Richard E.; Koomey, Jon; Warner, J. L.; Greenberg, S.

doi:10.2172/6463

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…These admit air by opening when the home comes under negative pressure, such as when an exhaust fan is turned on. A study by Roberson, Brown, Koomey, and Greenberg [2] concluded that passive vents are only recommended for use in very small, airtight homes in which depressurization is safe. Home depressurization is only safe if all combustion appliances receive combustion air from outside the home; there are no fireplaces in the home; the home has no attached garage; and the home is not located in a high radon area.…”

Section: Short Communicationmentioning

confidence: 99%

Residential Ventilation

2023

IJETI

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Section: Short Communicationmentioning

confidence: 99%

Residential Ventilation

2023

IJETI

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“…Without an airtight building envelope, it is almost impossible to maintain the desired mechanical ventilation goals, since the performance of heat recovery devices in mechanical ventilation system gets affected by excessive leakages in the building envelope [63]. According to research, tightening the building envelope properly and providing an appropriate mechanical ventilation system costs less compared to treating an excessive amount of infiltration air [64]. To reduce air infiltration, buildings need to have well-insulated doors and windows with properly sealed joints.…”

Section: Air Infiltration Through Building Envelopementioning

confidence: 99%

Case Study of a Nearly Zero Energy Building in Italian Climatic Conditions

2017

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Abstract:The building sector is an important stakeholder in the energy and environmental scenario of any country. It continues to grow across the world due to factors such as population growth, and economic and infrastructure development. Within the European Union, buildings account for 40% of the total energy requirements and 30% of carbon dioxide emissions. The building sector is keen to improve its sustainability standards and also to help achieve the 20-20-20 targets set by the European Union. The present work aims to design a nearly zero energy sports gymnasium building in Calolziocorte, Italy. Various sustainability techniques are applied in an integrated design project approach using ECOTECT software to undertake the energy modelling exercise. Firstly, the base-case is modelled with conventional building materials and the total energy demand is calculated. Duly considering the local climatic conditions, sustainable materials are chosen for walls, the floor, the roof, and windows and a 38% reduction is noted in the total energy demand of the building compared to the base-case. The impact of louvers as a passive design technique has also been examined on the total energy demand of the building. The monthly load/discomfort analysis is undertaken for various individual functions inside the building to identify the critical areas that consume more energy. The monthly load/discomfort analysis is performed with the proposed materials and the air infiltration rate is improved through the building envelope and 63% reduction is noted in the total energy demand of the building compared to the base-case. A solar access analysis is conducted to understand the on-site energy production and then the building net energy demand is calculated, which is reduced to 90% compared to the base-case.

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“…Although indicated energy penalties were small and were based on simulation, not measurement, they were not inconsequential, and the indicated benefits relied on base building infiltration rates that were not verified. Other relevant simulation estimates were made by Robertson et al (1998), who found that, depending on the strategy used for compliance, heating and cooling loads in Houston, Texas could be increased by up to four times that of the most effective strategy (balanced enthalpy recovery). No specific empirical studies could be located in our literature search, nor those of earlier investigators (Barley 2001).…”

Section: Literature Searchmentioning

confidence: 99%