Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms

Mariya Petrova Bivolarova, Arsen Krikor Melikov, Chiyomi Mizutani, Kanji Kajiwara, Zhecho Dimitrov Bolashikov

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Abstract

The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing the exposure to body generated bio-effluents in a hospital room was determined. Full-scale experiments were conducted in a climate chamber furnished as a single-bed patient room. Two heated dummies were used to simulate a patient and a doctor in the room. The patient was lying on a bed equipped with the VM. The patient's body was covered with either a cotton sheet or with the ACF material used as a blanket. Ammonia gas released from the patient's groins simulated the body generated bio-effluents. At the location of the groins the surface area of the VM was perforated through which the contaminated air of the bed micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced the generated bio-effluents in the room with about 70%. Reduction in the exposure to body-emitted ammonia was up to 96% when the VM was operated at only 1.5 L/s and the ACF was used as a blanket.
Original languageEnglish
JournalBuilding and Environment
Volume100
Pages (from-to)10-18
ISSN0360-1323
DOIs
Publication statusPublished - 2016

Keywords

  • Bed-integrated local exhaust ventilation
  • Ventilated mattress
  • Air cleaning textiles
  • Indoor air quality
  • Body-emitted pollutants

Cite this

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title = "Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms",
abstract = "The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing the exposure to body generated bio-effluents in a hospital room was determined. Full-scale experiments were conducted in a climate chamber furnished as a single-bed patient room. Two heated dummies were used to simulate a patient and a doctor in the room. The patient was lying on a bed equipped with the VM. The patient's body was covered with either a cotton sheet or with the ACF material used as a blanket. Ammonia gas released from the patient's groins simulated the body generated bio-effluents. At the location of the groins the surface area of the VM was perforated through which the contaminated air of the bed micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced the generated bio-effluents in the room with about 70{\%}. Reduction in the exposure to body-emitted ammonia was up to 96{\%} when the VM was operated at only 1.5 L/s and the ACF was used as a blanket.",
keywords = "Bed-integrated local exhaust ventilation, Ventilated mattress, Air cleaning textiles, Indoor air quality, Body-emitted pollutants",
author = "Bivolarova, {Mariya Petrova} and Melikov, {Arsen Krikor} and Chiyomi Mizutani and Kanji Kajiwara and Bolashikov, {Zhecho Dimitrov}",
year = "2016",
doi = "10.1016/j.buildenv.2016.02.006",
language = "English",
volume = "100",
pages = "10--18",
journal = "Building and Environment",
issn = "0360-1323",
publisher = "Pergamon Press",

}

Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms. / Bivolarova, Mariya Petrova; Melikov, Arsen Krikor; Mizutani, Chiyomi; Kajiwara, Kanji; Bolashikov, Zhecho Dimitrov.

In: Building and Environment, Vol. 100, 2016, p. 10-18.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms

AU - Bivolarova, Mariya Petrova

AU - Melikov, Arsen Krikor

AU - Mizutani, Chiyomi

AU - Kajiwara, Kanji

AU - Bolashikov, Zhecho Dimitrov

PY - 2016

Y1 - 2016

N2 - The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing the exposure to body generated bio-effluents in a hospital room was determined. Full-scale experiments were conducted in a climate chamber furnished as a single-bed patient room. Two heated dummies were used to simulate a patient and a doctor in the room. The patient was lying on a bed equipped with the VM. The patient's body was covered with either a cotton sheet or with the ACF material used as a blanket. Ammonia gas released from the patient's groins simulated the body generated bio-effluents. At the location of the groins the surface area of the VM was perforated through which the contaminated air of the bed micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced the generated bio-effluents in the room with about 70%. Reduction in the exposure to body-emitted ammonia was up to 96% when the VM was operated at only 1.5 L/s and the ACF was used as a blanket.

AB - The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing the exposure to body generated bio-effluents in a hospital room was determined. Full-scale experiments were conducted in a climate chamber furnished as a single-bed patient room. Two heated dummies were used to simulate a patient and a doctor in the room. The patient was lying on a bed equipped with the VM. The patient's body was covered with either a cotton sheet or with the ACF material used as a blanket. Ammonia gas released from the patient's groins simulated the body generated bio-effluents. At the location of the groins the surface area of the VM was perforated through which the contaminated air of the bed micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced the generated bio-effluents in the room with about 70%. Reduction in the exposure to body-emitted ammonia was up to 96% when the VM was operated at only 1.5 L/s and the ACF was used as a blanket.

KW - Bed-integrated local exhaust ventilation

KW - Ventilated mattress

KW - Air cleaning textiles

KW - Indoor air quality

KW - Body-emitted pollutants

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SP - 10

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JO - Building and Environment

JF - Building and Environment

SN - 0360-1323

ER -