Sensation of draft at uncovered ankles for women exposed to displacement ventilation and underfloor air distribution systems
نویسندگان
چکیده
منابع مشابه
Alternative Air Conditioning Technologies: Underfloor Air Distribution (UFAD): Technology Focus
Introduction and Background Recent trends in today’s office environment make it increasingly more difficult for conventional centralized HVAC systems to satisfy the environmental preferences of individual office workers using the standardized approach of providing a single uniform thermal and ventilation environment. Since its original introduction in West Germany during the 1950s, the open pla...
متن کاملVentilation and Air Distribution Systems in Buildings
The need of building occupants for ventilation has been recognized many centuries ago; however, since the early 1970s, ventilation systems for buildings and transport systems have considerably evolved. This was invigorated by researchers who demonstrated the requirements for buildings to provide comfort and good air quality indoors (e.g., Fanger, 1972; Fanger and Christensen, 1986; Fanger, 1988...
متن کاملcoordination of protective schemes in distribution and subtransmission systems including distributed generation
نصب منابع پراکنده در سیستم های توزیع و فوق توزیع علاوه بر مزیت های فراوان، مشکلاتی را هم به همراه دارد. یکی از این مشکلات تأثیر این منابع روی اندازه جریان های اتصال کوتاه است. به طور معمول از حفاظت های مبتنی بر اصل جریان زیاد در سیستم های توزیع و فوق توزیع استفاده می شود. از مهمترین طرح های حفاظتی استفاده شده در فیدرهای توزیع، حفاظت فیوز- ریکلوزر است. همچنین از طرح های حفاظتی جریان زیاد جهتی در...
Measured Air Distribution Effectiveness for Residential Mechanical Ventilation Systems
The purpose of ventilation is dilute or remove indoor contaminants that an occupant is exposed to. In a multi-zone environment such as a house, there will be different dilution rates and different source strengths in every zone. Most US homes have central HVAC systems, which tend to mix the air thus the indoor conditions between zones. Different types of ventilation systems will provide differe...
متن کاملComparison of airflow and contaminant distributions in rooms with traditional displacement ventilation and under-floor air distribution systems
Traditional displacement ventilation (TDV) and under-floor air distribution (UFAD) systems have been used widely because they create better indoor air quality. Many previous studies have compared the TDV or UFAD systems with mixing ventilation systems. This study first compared experimentally the TDV with UFAD systems that use four different diffusers (perforated TDV diffusers, swirl diffusers,...
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ژورنال
عنوان ژورنال: Building and Environment
سال: 2016
ISSN: 0360-1323
DOI: 10.1016/j.buildenv.2015.11.009