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The International Journal of Ventilation, Volume 13, 2014-2015

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Study on Distribution and Deposition of House Dust by Different Ventilation Systems in a Full-scale Residential Room

House dust contamination has recently become an important issue in the residential indoor environment. This study evaluated ventilation systems for removing…

Yang Lu, Jing Liu, Hiroshi Yoshino, Rie Takaki, Genta Kurihara
Impact of Clothing, Breathing and Body Posture on the Shaping of a Thermal Plume above a Human

The impact of clothing, breathing and body posture on the thermal plume above a thermal manikin was investigated. Measurements of air velocity and…

Barbara Koelblen, Anna Bogdan
Effects of Vent Configuration and Span Number on Greenhouse Microclimate under Summer Conditions in Eastern China

The effects of vent configuration and span number on the microclimate in multi-span greenhouses were investigated. A three-dimensional (3-D) computational…

Keshi He, Dayue Chen, Lijuan Sun, Zhenyu Huang, Zhenglu Liu
Experimental and Numerical Investigation on Airflow and Climate in a Real Operating Theatre under Effective Use Conditions

In the present study microclimate and airflow patterns in a real operating theatre (OT) under effective use conditions are investigated. Surgical staff…

Carla Balocco, Giuseppe Petrone, Giuliano Cammarata, Pietro Vitali, Roberto Albertini, Cesira Pasquarella
Evaluation of Interaction and Blockage Effects for Multi-fan Units used in Public Transport HVAC Systems

A specific type of centrifugal fan named the "squirrel-cage" is broadly used in parallel configurations within an evaporator unit of HVAC systems for public…

Sandra Velarde-Suárez, F. Israel Guerras Colón, José González, Katia M. Argüelles Díaz, Jesús M. Fernández Oro, Carlos Santolaria-Morros, Juan Bernal-Cantón
Air Tightness of Ventilation Ductwork in Recently Built Low-Energy and Conventional Houses

The air tightness of ventilation ductwork was measured in two recently built low-energy houses and in two conventionally built houses in the summer of 2013…

Kari Salmi, Erkki Kähkönen, Rauno Holopainen, Pertti Pasanen, Kari Reijula
Procedure for Balancing an Air Distribution System with Decentralised Fan

This paper presents results from an on-going project concerning new design procedures for mechanical ventilation systems with low energy use. Conventional…

Amalie Gunner, Göran Hultmark, Anders Vorre, Alireza Afshari, Niels Christian Bergsøe
A Novel Method for Thermostat Set Point Prediction for Energy Savings and/or Better Human Thermal Comfort - A Zonal Modelling Approach

Very often the set point temperature is selected to satisfy comfort requirements and/or to save energy consumption in buildings. However, the thermostat…

Yao Yu, Ahmed Cherif Megri
The Confinement Effects on Jet Kinetic Momentum Flux Quantified by Measuring the Reaction Force

A turbulent jet is the most important flow element in mechanical ventilation. Mixing ventilation is based on the properties of turbulent jets. By…

Taghi Karimipanah, Mats Sandberg
Effect of Opening the Sash of a Centre-Pivot Roof Window on Wind Pressure Coefficients

This paper describes the effect of outward opening the sash of a window on local and overall wind pressures. Wind tunnel experiments were used for the…

Ahsan Iqbal, Hans Wigo, Per Heiselberg, Alireza Afshari
Experimental Investigation of Assumptions Used to Quantify Airflows through a Window under Cross Natural Ventilation

As natural wind is continuously fluctuating in both speed and direction, quantifying instantaneous wind-driven natural ventilation rate can be difficult,…

Ryan Meyer, Gang Tan
Calculating the Intensity of Ventilation in Classrooms on the Basis of Measured Concentrations of Carbon Dioxide in Slovakia - Case Study

Air quality in a classroom is very important. According to a study by Wargocki et al (2012) a shortage of ventilation in the classroom reduces the ability…

Peter Kapalo, Pavol Siroczki
Air Change Rate Measurements using Tracer Gas Carbon Dioxide from Dry Ice

Air change rate is often used as an important characteristic of indoor environmental quality, which significantly impacts human health. However, easy,…

Pok Lun Cheng, Xiaofeng Li
Capture and Containment Efficiency of the Exhaust Hood in a Typical Chinese Commercial Kitchen with Air Curtain Ventilation

In typical Chinese commercial kitchens, the large amount of heat and moisture that is generated must be removed. The ventilation and energy consumption…

Angui Li, Yujiao Zhao, Zhihua Wang, Ran Gao
Decay of Airborne Contamination and Ventilation Effectiveness of Cleanrooms

This paper reports an investigation into the ability of the air supply in non-unidirectional cleanrooms to aid recovery from episodes of airborne…

W. Whyte, S. Ward, W.M. Whyte, T. Eaton
Potential of Night Ventilative Cooling Strategies in Office Buildings in Spain - Comfort Analysis

Night ventilation has been applied successfully to many passively-cooled or low-energy office buildings. This paper analyses the thermal comfort achievable…

Olatz Irulegi, Álvaro Ruiz-Pardo, Antonio Serra and José M. Salmerón
Ventilative Cooling of Residential Buildings - Strategies, Measurement Results and Lessons Learned from Three Active Houses in Austria, Germany and Denmark

The thermal comfort of the “Home for Life” dwelling in Denmark, the “LichtAktiv Haus” in Germany and “Sunlighthouse” in Austria is investigated with a…

Peter Foldbjerg, Thorbjørn Asmussen and Peter Holzer
A Naturally Ventilated Efficient Residential Building under the Impact of Climate Change

According to researchers, climate change is inevitable in the 21st century. As far as Greece is concerned, this climate change will be related to an…

Theofanis Psomas, Peter Holzer and Mattheos Santamouris
Time-averaged Single Sided Ventilation Rates and Thermal Environment in Cooling Mode for a Low Energy Retrofit Envelope

Non-invasive, scalable, building retrofit solutions are very attractive deep renovation techniques to improve energy efficiency in existing buildings; this…

Paul D O’Sullivan and Maria Kolokotroni
National Survey on Ventilation Systems and the Health of Occupants in Japanese Homes

The indoor environmental quality and health of occupants in approximately 5000 dwellings were investigated by questionnaire covering the whole of Japan. The…

Kenichi Hasegawa and Hiroshi Yoshino
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