Results 231 to 240 of about 125,160 (259)

Characteristics of Low-Profile Cross-Ventilated Freestalls

Sixth International Dairy Housing Conference Proceeding, 16-18 June 2007, (Minneapolis, Minnesota) (Electronic Only), 2007
The ventilation characteristics in a low-profile cross-ventilated freestall building were monitor in May and August 2006. Three different ventilation rates were evaluated in an 800 cow facility located in North Dakota. The high, medium and low ventilation rates selected were based on exchanging the air inside the building every 60, 120 and 240 seconds,
null Joseph P Harner, null John F. Smith, null M De Haro Marti, null Ronald E Sheffield, null Joseph M Zulovich, null Steve H Pohl, null Sriramulu Pasikanti, null Charles D Fulhage, null Richard E Nicoli, null Brian Hetchler, null Larry D Jacobson, null Kevin Dhuyvetter, null Michael J Brouk   +12 more
openaire   +1 more source

Measurement of Cross-Ventilation Rate in Urban Multi-Zone Dwellings

Building and Environment, 2019
Abstract Cross ventilation can effectively improve air quality with larger ventilation rate than single-sided natural ventilation. The measurement of ventilation rate is critical for research on indoor environmental maintenance and air quality control.
Zhengwei Long, Sumei Liu, Wuxuan Pan
exaly   +2 more sources

Natural cross ventilation in buildings on Mediterranean coastal zones

Energy and Buildings, 2014
Abstract Natural ventilation of buildings is a common way to improve indoor air quality, thermal comfort in summer and reduce energy consumption due to air conditioning. However, efficiency of such a system is highly dependent on climatic conditions. This paper investigates the use of thermal breezes, characterized by moderate speeds and well-defined
Ghjuvan Antone Faggianelli, Adrien Brun, Etienne Wurtz, Marc Muselli   +3 more
openaire   +2 more sources

Cross-Ventilation of Underground Railway Tunnels

Journal of Fluids Engineering, 1979
The aerodynamic merits and demerits of cross-ventilating adjacent tunnels in underground rapid transit systems are discussed. Three types of cross-ventilation are considered, namely (a) numerous small holes in the dividing wall between the tracks in a cut-and-cover tunnel, (b) a curtailed dividing wall and (c) passages linking separately bored tunnels.
openaire   +1 more source

Changes in Low Profile Cross Ventilated Dairy Facilities

2009 Reno, Nevada, June 21 - June 24, 2009, 2009
The performance of an evaporative cooling system was evaluated in the High Plains region on a low profile cross ventilated dairy facility housing 4,200 lactating cows. The evaporative pad was 3 m (10 ft) tall and approximately 426 m (1,400 ft) long. Temperature and humidity data were collected every 15 minutes at three locations each baffles in the ...
null Joseph P Harner, null John F Smith, null Kevin Dhuyvetter   +2 more
openaire   +1 more source

Windows design for maximum cross-ventilation in buildings

Advances in Building Energy Research, 2016
ABSTRACTComputational Fluid Dynamics numerical analysis is performed to investigate the ventilation performance and the internal thermal environment of naturally ventilated buildings. Several alternative scenarios are generated by varying the size of openings with different configurations of orientation and solar shading.
openaire   +1 more source

An experimental study of wind-driven cross ventilation in partitioned buildings

Energy and Buildings, 2010
This study uses wind tunnel experiments to investigate wind-driven cross ventilation in partitioned buildings. The discharge coefficients of internal opening under various flow conditions were determined by a fan technique. It was found that the internal discharge coefficient is dependent on the internal porosity, but independent of external porosity ...
Chia Ren Chu, Y.-H. Chiu, Yu-Wen Wang
openaire   +1 more source

Effect of porous hedge on cross ventilation of a residential building

Building and Environment, 2006
Abstract Examined here are the effects of cross-ventilation when a porous hedge is placed ahead of a residential building. Parametric studies include the hedge porosity ( 0 ⩽ η ⩽ 1.0 ) , the space between the hedge and the building ( 0.25 ⩽ L / 2 H ⩽ 3.0 ) and the hedge height ( 0.1 ⩽ h / 2 H ⩽ 1.0 ) .
openaire   +1 more source

Effect of indoor buoyancy flow on wind-driven cross ventilation

Building Simulation, 2012
Designing for wind-driven cross ventilation is challenging due to many factors. While studies have focused on the difficulty of predicting the total flow rate and measuring opening characteristics of cross ventilation, few have investigated the impacts on the distribution of indoor air.
L. James Lo, Atila Novoselac
openaire   +1 more source

Airflow assessment in cross-ventilated buildings with operable façade elements

Building and Environment, 2011
This paper presents an experimental study of basic cross-ventilation flow characteristics that are essential inputs for accurate natural ventilation modelling and design. The study focuses on a generic single-zone building model tested in a wind tunnel under isothermal flow conditions (wind-driven ventilation).
P. Karava, T. Stathopoulos, A.K. Athienitis   +2 more
openaire   +1 more source