Energy Efficiency, Air Quality, and Comfort in Air-Conditioned Spaces

Kameel, Ramiz; Khalil, Essam E.

doi:10.1115/detc2003/cie-48255

Cited by 9 publications

(3 citation statements)

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“…Comfortable thermal environment helps to maintain patients' mood and improves the healing of patients. From the objective survey, the high temperature levels increases toxins rate from building materials and also reduce the recovery rate of the patients in the wards (Kameel and Khalil, 2003). This may increase the lenght of stay of the patients in the wards.…”

Section: Discussionmentioning

confidence: 99%

Perceived Indoor Environmental Quality of Hospital Wards and Patients’ Outcomes: A Study of a General Hospital, Minna, Nigeria

Alfa¹

2019

Appl. Ecol. Env. Res.

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The objective of this study was to assess patients' perceptions of the indoor environment of wards in a hospital in terms of architectural design, thermal comfort, indoor air quality (IAQ), lighting and acoustical parameters. The study attempted to determine the factors influencing the perceived indoor environmental quality (PIEQ) and explored the relationships between the perceived importance of indoor environmental quality (PI-IEQ) and health recovery, health satisfaction and therapeutic ambience of the hospital. A field study of the indoor environmental quality (IEQ) of 4 wards in the General hospital at Minna, Niger state, Nigeria was conducted, and responses from 271 patients were obtained. Structural equation modelling was employed for data analysis. The research identified the six IEQ factors that influenced PIEQ as architectural design features, thermal comfort, adaptive opportunities, lighting, IAQ and acoustics aspects. PIEQ had a positive influence on a ward being perceived as conducive for wellbeing. It was observed that health satisfaction had the most significant and positive influence on PI-IEQ. The second most positive influence was health recovery. Therapeutic ambience also had a positive influence on PI-IEQ but this was not significant.

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Section: Discussionmentioning

confidence: 99%

Perceived Indoor Environmental Quality of Hospital Wards and Patients’ Outcomes: A Study of a General Hospital, Minna, Nigeria

Alfa¹

2019

Appl. Ecol. Env. Res.

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“…The effective diffusion coefficients and source terms for the various differential equations are listed in Table 1 (Kameel and Khalil, 2003). Table 1 Terms of Partial Differential Equations.…”

Section: Model Equationsmentioning

confidence: 99%

CFD Computations of Flow Regimes and Thermal Patterns in The Tombs of The Valley of Kings

Khalil¹

2008

Engineering Applications of Computational Fluid Mechanics

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Airflow characteristics in ventilated and air-conditioned spaces play an important role to attain comfort and hygiene conditions. This paper utilizes a 3D Computational Fluid Dynamics (CFD) model to assess the airflow characteristics in ventilated and air-conditioned archeological tombs of Egyptian Kings in the Valley of the Kings in Luxor, Egypt. It is found that the optimum airside design system can be attained, if the airflow is directed to pass all the enclosure areas before the extraction with careful selection of near wall velocities to avoid any wear or aberration of the tomb-wall paintings. The mode of evaluation should assess the airflow characteristics in any tomb passage according to its position in the enclosure and the thermal pattern and air quality. The airside design and internal obstacles are the focus of the present work. The free air supply and mechanically extracted ducted air play an important role in the main flow pattern and the creation of main recirculation zones. The internal obstacles can obstruct the airflow pattern in different ways, such as, by increasing the recirculation zones or by deflecting the main airflow pattern.

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“…The e®ective di®usion coe±cients, À È;eff and source terms, S È for the various dependent variables conservation equations can be found in Ref. 6, where reference should be made for details. A two equation turbulence model (kÀ") was used.…”

Section: Model Equationsmentioning

confidence: 99%

Ventilation of the Archeological Tombs of the Valley of Kings, Luxor, Egypt

Khalil

2012

Int. J. Air-Cond. Ref.

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The cultural heritage left by the Egyptian pharaohs in the tombs of the Valley of the Kings represents some of the key elements of the Egyptian cultural wealth and standing monuments demonstrating the wealth and technology of the pharaohs. As the pharaohnic civilization is one of the oldest civilizations, the dedicated preservation of its remaining monuments and collections should be the focus of sincere international e®orts. A major heritage of this civilization, i.e., the tombs of the Kings, is intact in the Valley of the Kings, Luxor, Egypt. These tombs were prepared to bury the Kings' mummies and artifacts for eternal life. Many of the wall paintings identifying the various ancient rituals and life style are in good conditions as the tombs were only recently opened to the public. However, tourists' activities in these tombs have resulted, in many instances, in the dramatic deterioration of wall paintings due in part to excessive humidity. The current indoor air°o w conditions and air quality in the tombs are quite alarming; hence, appropriate measures should be taken to preserve the tombs and their contents. This dilemma invokes the need for a proper ventilation system that stabilizes the air conditioning as well as addresses comfort levels of visitors. Deterioration can be from lighting e®ects, high temperature and relative humidity. Pest infections, shock and vibration are also potential causes among pollution and visitors' tra±c.

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Energy Efficiency, Air Quality, and Comfort in Air-Conditioned Spaces

Cited by 9 publications

References 0 publications

Perceived Indoor Environmental Quality of Hospital Wards and Patients’ Outcomes: A Study of a General Hospital, Minna, Nigeria

Perceived Indoor Environmental Quality of Hospital Wards and Patients’ Outcomes: A Study of a General Hospital, Minna, Nigeria

CFD Computations of Flow Regimes and Thermal Patterns in The Tombs of The Valley of Kings

Ventilation of the Archeological Tombs of the Valley of Kings, Luxor, Egypt

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