building air flow Articles
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What is HRV mechanical system
MVHR (Mechanical Ventilation with Heat Recovery) provides fresh filtered air into a building even as retaining most of the power that has already been used in heating the building. Heat Recovery Ventilation is the solution to the ventilation wants of energy efficient buildings. Mechanical air flow with warmth restoration (MVHR), warmth restoration ventilation (HRV) or Comfort air flow are all ...
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Service Life Considerations in Relation to Green Building Rating Systems: An Exploratory Study, in collaboration with Morrison Hershfield Limited.
Untitled Document EXECUTIVE SUMMARY This is the final report of the exploratory phase of a study of durability and service life issues related to green building. The overall objective of the project is to determine how service life considerations can be appropriately included in green building rating systems such as LEED and Green Globes. The intent at this exploratory ...
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Quebec recovers heat energy from sewage in Baied`Urfe
Energy recovery from municipal sewage and greywater offers cities a new reliable resource. Erwin Schwartz of DDI Heat Exchangers Inc. reports on a novel application of rectangular, wide-gap heat exchangers that has worldwide potential. The Canadian company DDI Heat Exchangers Inc. installed, with the support of the Quebec provincial government and municipal sewage authority, the first direct ...
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How do acid fume scrubbers work?
How do acid fume scrubbers work? Fume scrubbers are designed to neutralize or eliminate harmful fumes from stored chemicals. In many cases, these systems can be custom designed to ensure the right fit for your facility. Acid fume scrubbers can be designed in vertical or horizontal orientation. Before purchasing an acid fume scrubber for your facility, it is important to understand the differences ...
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Overcoming sick building syndrome with a fresh air solution
The notion of sick buildings and sick building syndrome (SBS) isn’t anything new, it’s been on the radar of facilities managers since the nineties and is widely considered to be a thing of the past. However, new research carried out by the Remark Group show’s SBS might be on the rise. What is SBS? SBS is what you call the symptoms you get when you are in a particular ...
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Application of computational fluid dynamics in building design: aspects and trends
Computational fluid dynamics (CFD), as the most sophisticated airflow modelling method, can simultaneously predict airflow, heat transfer and contaminant transportation in and around buildings. This paper introduces the roles of CFD in building design, demonstrating its typical application in designing a thermallyconformable, healthy and energy-efficient building. The paper discusses the primary ...
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Design of passive cooling system for a building in composite climatic conditions in India
A combined solar chimney?wind tower concept has been developed for a typical urban institution building in Delhi. Due to site limitations, the concept of solar chimney based ventilation has been introduced through roof mounted thermo-siphon air panels of 70 m? absorber area. A wind tower provided on the suction side of fresh air has potential for cooling incoming air by 5?C by using 250 m? of ...
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Six Ways to Improve Indoor Air Quality Now
Air quality is an important issue to anyone’s health, and many people don’t realize that their health issues and illnesses could be significantly diminished if their air quality was improved. There is much scientific evidence to suggest that the indoor air can be more polluted than the air outdoors, even in industrialized areas. When people spend eight or more hours a day in the same ...
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For China, sustainable urbanization has many benefits
China’s recent history has been marked by tremendous economic growth and dynamism as it has progressed from a modest farming society to a thriving manufacturing success in less than three decades. As China’s economy continues to grow, it must now wrestle with a new emerging challenge: How will it handle the shift from a majority rural population to a majority urban one? This question ...
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Blower Door Pressure Testing, Unvented Attics and Florida Homes
I recently traveled to theCaribbean on a building science investigation. A large multi-national corporation owns several homes there for local executives. These homes had been plagued with dampness and mold growth problems for several years. After several attempts to correct these problems, IET was called in, as we had work with their local affiliate for some years. IET performed several types ...
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Eastney - Horsham, West Sussex - Case Study
Project summary: ERG was contracted by Southern Water to provide increased air extraction and upgraded odour control at the Eastney Headworks site in Portsmouth. Key project data: The upgrade works more than doubled the extracted air flowrate to the odour control unit from 20,700m3/hr to 48,500m3/hr was completed with live sewage flow throughout maintained air extraction from the ...
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