Results 21 to 30 of about 30,191 (258)

Numerical Simulation of Heating and Ventilation by Natural Convection in a Square Cavity

open access: yesRevue des Énergies Renouvelables, 2022
Heating and ventilation in the building is essential to establish thermal comfort. The modern means invented to provide us with our heating and ventilation needs are generally expensive and represent sources of pollution. It is for this reason that there
El Houcine Mourid   +2 more
doaj   +1 more source

Numerical investigation on indoor aerosol dispersion due to natural ventilation with single-sided opening [PDF]

open access: yesE3S Web of Conferences, 2023
The purpose of this study is to evaluate the characteristics of ventilation runoff of particles. Using CFD analysis, the indoor space with the single-side opening model is filled with particles and passive scalar to provide differential temperature ...
Muto Yuta   +4 more
doaj   +1 more source

Desain Komposter Sampah Pasar sebagai Solusi Persampahan di Negara Berkembang (Studi Kasus: Jakarta, Indonesia)

open access: yesJurnal Ilmu Lingkungan, 2022
Tingginya timbulan sampah makanan di negara berkembang seperti Indonesia, membuat komposting menjadi salah satu alternatif pengolahan sampah yang sering dilakukan oleh masyarakat. Disamping prosedurnya yang mudah, biaya pengolahan pun relatif lebih murah
Argiffari Akhmad   +2 more
doaj   +1 more source

CFD Investigation of Enhancing Natural Ventilation in Attached Family House Buildings in Hungary [PDF]

open access: yesE3S Web of Conferences, 2023
Energy consumption of the residential sector in Hungary is 12% higher than the EU average. Most of existing house buildings in Hungary are inefficient in term of their indoor comfort and energy consumption. This is where the refurbishment process takes a
Ali Modar, Kistelegdi István
doaj   +1 more source

Homogeneity of passively ventilated waste tanks [PDF]

open access: yes, 1997
Gases and vapors in the high-level radioactive waste underground storage tanks at the Hanford Site are being characterized to help resolve waste storage safety issues and estimate air emissions. Characterization is accomplished by collecting and analyzing air samples from the headspaces of the tanks.
Huckaby, J.L.   +3 more
openaire   +2 more sources

A Study on Ventilation and Heat Transfer Coefficient of Passive Ventilation Skin

open access: yesKorean Journal of Air-Conditioning and Refrigeration Engineering, 2012
This paper aims to evaluate performances of ventilation and insulation of 6types PVS(Passive ventilation skin) by numerical simulation. The results are as follows. 1) The result of Performance of ventilation by pressure difference, it was shown that the amount of ventilation changed bigger under 1Pa and amount of ventilation increased according to ...
Tae-Cheol Lee   +2 more
openaire   +2 more sources

Pedestrian-Level Urban Wind Flow Enhancement with Wind Catchers

open access: yesAtmosphere, 2017
Dense urban areas restrict air movement, causing airflow in urban street canyons to be much lower than the flow above buildings. Boosting near-ground wind speed can enhance thermal comfort in warm climates by increasing skin convective heat transfer.
Lup Wai Chew   +2 more
doaj   +1 more source

Passive Design Strategies to Enhance Natural Ventilation in Buildings "Election of Passive Design Strategies to Achieve Natural Ventilation in Iraqi Urban Environment with Hot Arid Climate"

open access: yesJournal of Engineering, 2016
the natural ventilation in buildings is one of effective strategies for achieving energy efficiency in buildings by employing methods and ways of passive design, as well as its efficiency in providing high ranges of thermal comfort for occupants in ...
Ghada M.Ismael Abdul Razzaq Kamoona
doaj   +2 more sources

PM2.5 and Ventilation in a Passive Residential Building

open access: yesProcedia Engineering, 2017
Abstract To survey the indoor particulate matter in a passive low energy consumption residential building in the severe cold area of China, a field study was conducted in Harbin during the winter of 2015~2016. The indoor and outdoor concentrations of PM10 and PM2.5 as well as outdoor air flow rates were tested, and the subjective evaluation on indoor
Zhaojun Wang, Zhiyi Yu
openaire   +1 more source

Toward improving thermal behavior of passive solar structures by natural ventilation and extraction

open access: yesJournal of Thermal Engineering, 2023
Improving the energy performance of passive energy buildings is based on reducing their consumption. These reach very high levels in overheating periods because of the mechanical ventilation systems. This work proposes to implement ventilation strategies
Hicham LAKRAFLI   +4 more
doaj   +1 more source

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