Investigating the impact of HVAC and Sanitizer system design on the transmission of SARS-CoV-2 in Hospital Isolation Units

Amahjour, Narjisse; Sofi, Anas; Kamal, Tariq; El Kharrim, Abderrahman

doi:10.1016/j.chaos.2023.114345

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…In pursuing a thermally stable environment in QC laboratories, design engineers have traditionally relied on calculating the cooling or heating load [6]. This calculation helps determine the appropriate air supply conditions or radiator capacity, ensuring that the air temperature in the QC lab falls within the required production zone.…”

Section: Literature Reviewmentioning

confidence: 99%

HVAC Design Optimization for Pharmaceutical Facilities with BIM and CFD

Liu,

Huang

2024

Buildings

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Building Information Modeling (BIM) has been widely used in the past decade to enhance the design quality of Heating, Ventilation, and Air Conditioning (HVAC) systems. However, in specialized areas such as pharmaceutical facilities, HVAC design has traditionally relied on Computer-Aided Design (CAD) drawings. This conventional approach does not allow for the simulation of temperature distribution or the verification of system efficiency, which may lead to design failures. To address these challenges in pharmaceutical facilities, this study proposed a BIM-based approach for optimizing HVAC design with Computational Fluid Dynamics (CFD). By employing CFD to simulate the dynamic airflow conditions of pharmaceutical clean rooms, the effectiveness of HVAC systems can be verified. A case study of a clean room HVAC design is presented to demonstrate the workflow. The results of the case study indicated that the pharmaceutical temperature requirements were met within 1 °C during the design optimization simulation, and there was a 95% match in the 72 h temperature mapping test during site validation. The results confirmed that using CFD with BIM not only successfully simulates the design intentions of indoor air quality but also suggests HVAC system optimization for the required clean room design. The findings of this paper contribute to the body of knowledge on overcoming the limitations of the traditional CAD-based HVAC design process and provide valuable insights on optimizing HVAC design with BIM and CFD technologies.

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Section: Literature Reviewmentioning

confidence: 99%

HVAC Design Optimization for Pharmaceutical Facilities with BIM and CFD

Liu,

Huang

2024

Buildings

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Investigating the impact of a window air conditioner with H-14 HEPA filter on lessening SARS-COV-2 aerosols

Huzayyin,

Zaki,

Ali

2024

J. Eng. Appl. Sci.

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This research breaks new ground by proposing a unique solution to combat SARS-COV-2 aerosols: modifying a readily available window air conditioner’s indoor blower to accommodate a HEPA (high-efficiency particulate air) filter. While traditional public health measures like lockdowns and mask-wearing remain crucial, this study explores an innovative engineering approach to air purification within homes and offices. The widespread impact of COVID-19 across various sectors—agriculture, manufacturing, finance, and more—necessitates exploring diverse solutions. Current efforts to utilize HEPA filters in HVAC systems face limitations. These filters, while highly effective at capturing airborne particles, increasingly impede airflow and require substantial pressure, posing challenges for standard HVAC systems to maintain efficient operation. This study addresses this critical gap by proposing a targeted modification to a specific window air conditioner (AC) model (GJC07AF-K3RNB9D) to incorporate an H-14 HEPA filter. Utilizing cutting-edge design tool (CF-TURBO) and advanced simulation software (STARCCM +), the research will provide a new blower specifically optimized for this application. This virtual testing will meticulously evaluate the modified system’s performance, ensure optimal airflow, predict noise levels, and identify any potential design flaws before implementing the modification in a physical prototype. The success of this study could pave the way for the development of increasingly efficient and accessible HEPA-based air purification solutions for everyday use, particularly in areas with limited resources. Furthermore, this research can be a valuable foundation for future work aimed to increasingly improve indoor air quality (IAQ).

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Investigating the impact of HVAC and Sanitizer system design on the transmission of SARS-CoV-2 in Hospital Isolation Units

Cited by 2 publications

References 21 publications

HVAC Design Optimization for Pharmaceutical Facilities with BIM and CFD

HVAC Design Optimization for Pharmaceutical Facilities with BIM and CFD

Investigating the impact of a window air conditioner with H-14 HEPA filter on lessening SARS-COV-2 aerosols

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