Numerical Investigation of Particle Accumulation Effect Due to Human Respiration

Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ISME27_748

تاریخ نمایه سازی: 8 مرداد 1398

Abstract:

Control of temperature and contamination in the cleanroom is one of the essential requirements for safe and risk-free surgical procedures. Surgical and surgery rooms have a remarkable cleanliness class due to biological considerations and space control. One of the factors influencing the distribution of air and,consequently, the distribution of particles is the simulation and experimentally controlled. There are two main objectives in this study: first, to investigate numerically the impact of respiration on theconcentration of particles in a cleanroom with a defined geometry, and second, to simulate the respiration and the dispersion mode of particles. It is usually necessary to reduce contaminant particles, which are potentially important resulting in capillary clogging in the course of operation in lots of hospital cleanrooms including the open-heart surgery, organ transplantation, and neurosurgery rooms. Additionally, dust particles can act as a way of diverse pathogenic bacteria and viruses, which reveals the importance of decreasing theconcentration of oversized particles. The size of bacterial species ranges between 0.6 and 6 μm, and viruses have dimensions in the range of 28-290 nanometers. It is, therefore, obvious that a 5-μm particle can contain at least 1 bacterium and 14 viruses.

Authors

Alireza Khademi

M.Sc. Student, Department of Aerospace Engineering, Centre of Excellence in Aerospace Systems Sharif University of Technology, Tehran, Iran

Mohammad Hassan saidi

Professor, Sharif Energy Research Institute (SERI), Sharif University of Technology, Tehran, Iran

Masoud Darbandi

Professor, Department of Aerospace Engineering, Centre of Excellence in Aerospace Systems Sharif University of Technology, Tehran, Iran