Investigating indoor air quality and thermal comfort using different ventilation systems under Iraqi climate

Other Title(s)

استقصاء نوعية هوء الغرفة و الراحة الحرارية للشاغلين باستخدام منظومات تهوية مختلفة عند الأجواء العراقية

Joint Authors

Mahdi, Ala Abbas
Abbas, Sarah Muhammad Muhammad

Source

The Iraqi Journal for Mechanical and Materials Engineering

Issue

Vol. 18, Issue 3 (30 Sep. 2018), pp.422-435, 14 p.

Publisher

University of Babylon College of Engineering

Publication Date

2018-09-30

Country of Publication

Iraq

No. of Pages

14

Main Subjects

Engineering & Technology Sciences (Multidisciplinary)

Abstract EN

Computational Fluid Dynamics (CFD) of indoor environment as well as quality considerations are important element in the study of energy consumption, thermal comfort and indoor air quality in buildings.

This paper investigate a comparison work between impinging jet, displacement, and mixing ventilation systems for an isothermal and non-isothermal ventilated room for Indoor Air Quality (IAQ) and thermal human comfort under Iraqi climate.

For IJV system, draught discomfort is the issue of most concern since it supplies cooled air directly to the occupied zone.

This study investigated a number of factors influencing draught discomfort and temperature stratification in an office environment.

The considered factors, supply airflow rate and supply air temperature.

RNG K-Ɛ turbulence model was used with the turbulent flow.

The second aspect included numerical analyses by adopting ANSYS FLUENT15 code to generate simulation models.

A square shaped air supply device was used with [0.1 times room height (h)] outlet terminal height from the foot level end.

The IJV system proved more efficient than displacement and mixing ventilation systems.

The Air Distribution Performance Index (ADPI) obtained for an isothermal and non-isothermal ventilated room adopting IJV system gave best values (0.80, 0.83) respectively compared with the other two ventilation systems.

American Psychological Association (APA)

Mahdi, Ala Abbas& Abbas, Sarah Muhammad Muhammad. 2018. Investigating indoor air quality and thermal comfort using different ventilation systems under Iraqi climate. The Iraqi Journal for Mechanical and Materials Engineering،Vol. 18, no. 3, pp.422-435.
https://search.emarefa.net/detail/BIM-832324

Modern Language Association (MLA)

Mahdi, Ala Abbas& Abbas, Sarah Muhammad Muhammad. Investigating indoor air quality and thermal comfort using different ventilation systems under Iraqi climate. The Iraqi Journal for Mechanical and Materials Engineering Vol. 18, no. 3 (Sep. 2018), pp.422-435.
https://search.emarefa.net/detail/BIM-832324

American Medical Association (AMA)

Mahdi, Ala Abbas& Abbas, Sarah Muhammad Muhammad. Investigating indoor air quality and thermal comfort using different ventilation systems under Iraqi climate. The Iraqi Journal for Mechanical and Materials Engineering. 2018. Vol. 18, no. 3, pp.422-435.
https://search.emarefa.net/detail/BIM-832324

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 435

Record ID

BIM-832324