Heating, ventilating and air conditioning system and environmental control for wellbeing

Cao, Shi-Jie; Yu, Chuck Wah; Xin, Libiao

doi:10.1177/1420326x20951967

Cited by 19 publications

(11 citation statements)

References 37 publications

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“…Moreover, people spend more than 87% of their daily lives inside buildings ( Klepeis et al, 2001 ). It is particularly important to improve air quality indoors ( Agarwal et al, 2021 ; Cao et al 2020 ) and reduce indoor exposure to airborne infectious diseases ( Kenyon et al, 1996 ; Moser et al 1979 ; Olsen et al 2003 ) in the existing buildings.…”

Section: Introductionmentioning

confidence: 99%

Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings

Srivastava¹,

Zhao

Manay³

et al. 2021

Sustainable Cities and Society

114

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During the COVID-19 pandemic, an increasing amount of evidence has suggested that the virus can be transmitted through the air inside buildings. The ventilation system used to create the indoor environment would facilitate the transmission of the airborne infectious diseases. However, the existing ventilation systems in most buildings cannot supply sufficient clean outdoor air for diluting the virus concentration. To reduce the airborne infection risk and minimize energy consumption, especially in existing buildings with well-mixed ventilation systems, this investigation used an ultraviolet-C (UV-C) air disinfection device (Rheem's third generation products, RM3) with 99.9% disinfection efficiency to clean air carrying the COVID-19 virus (severe acute respiratory syndrome coronavirus 2, SARS-CoV-2) which could help promote environmental sustainability and create healthy cities. This investigation assessed the impact of the RM3 UV-C units on the infection risk, the number of RM3 UV-C units required, and the strategy for decreasing the infection risk, with the use of computational-fluid-dynamics (CFD) numerical simulations. An actual office building with a combination of individual offices and workstations was selected as an example for the research. According to the numerical results, the best strategy would be to use a combination of 100% outside air and UV-C in heating, ventilation and air-conditioning (HVAC) ducts with air disinfected by the RM3 UV-C units. The infection risk in the office building could thus be reduced to a negligible level. These findings could provide theoretical basis and engineering application basis for COVID-19 epidemic prevention and control.

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Section: Introductionmentioning

confidence: 99%

Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings

Srivastava¹,

Zhao

Manay³

et al. 2021

Sustainable Cities and Society

114

View full text Add to dashboard Cite

show abstract

“…1,2,7 Space-conditioning From 'build' to 'burn', the logic of architectural formation turns from climatic adaptation to equipment worship. 2 Although air conditioning is a more effective and accurate way of environmental regulation, 15 it not only consumes large sum of energy but also causes irreversible climate change. A survey by the U.S. Department of Energy shows that the energy consumption in the building sector accounts for as high as 40%, and the carbon emission ratio of the whole life cycle of building is as high as 50%, which is continuously increasing year by year.…”

Section: Law Of Energy and Gravity For Architectural Formationmentioning

confidence: 99%

Energy agenda of architectural formation: To progress sustainable built environment through the approach of energy-driven architectural formation

Zhang

Zhong

Yu³

2021

Indoor and Built Environment

Self Cite

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Until now, the significance of environmental regulation for disciplinary autonomy of architecture is still being underestimated. 1,2 Reyner Banham 3 wrote in the very beginning of his literal works 'The Architecture of the Well-tempered Environment':In a world more humanely disposed, and more conscious of where the prime human responsibilities of architects lie, the chapters that follow would need no apology, and probably never need to be written.

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“…14th IADIS International Conference Information Systems 2021 Cao et al (2020) researched the impacts of Heating Ventilation and Air Conditioning (HVAC) system and controls, on wellbeing of occupants. The research highlighted the role of IEQ investigations, in relevance to Chinese standards of performance criteria.…”

Section: Literature Reviewmentioning

confidence: 99%

A Holistic Framework for Information System for the Management of Indoor Environmental Qualities (Ieq) in Built Facilities

2021

14th IADIS International Conference Information Systems

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Because every building is considered as a long-run investment, regardless of its scale, at least to its owner, broadly by collectively impacting the national development of built assets. It is a vital aspect to ensure the qualities which define its inhabitance experience. Buildings' indoor environments have been undermined being observed as an uncontrolled expensive application of systems, targeted for research, while indoor environmental quality (IEQ) is one of the assembly of aspects that aim to appraise almost any built facility performance. There have been research efforts in literature, with global and contextual limitations, covering dispersed relations and topics in the IEQ domain, such as the control, and analysis of occupants' satisfaction and facilities systems performance in respect to standards. These research efforts were more focused on investigating results rather than allowing for an automated solution for the creation of universal standards. Therefore, emerged a need for modelling IEQ management in an inclusive manner, to allow for the sustainable management and understanding of facilities components' impacts, on both occupants' experiences and wellbeing, whereas the power of information systems with the capabilities of todays' hardware and technologies, set a new era, for the architectural science in digital means. This research paper proposes a conceptual information system framework modelled in Integrated Computer Aided Manufacturing Definition for Function Modeling (IDEF0) diagram, to enable the architects and the facility managers to sustainably manage and monitor IEQs in built facilities. The proposed framework is based on a standardized big data analytics that can provide architects and facility managers with meaningful insights for achieving an evidence based, and informed design thinking, as well as sustainable monitoring of built facilities in real time.

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Heating, ventilating and air conditioning system and environmental control for wellbeing

Cited by 19 publications

References 37 publications

Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings

Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings

Energy agenda of architectural formation: To progress sustainable built environment through the approach of energy-driven architectural formation

A Holistic Framework for Information System for the Management of Indoor Environmental Qualities (Ieq) in Built Facilities

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