title: Development and evaluation of a new push-pull ventilation system for sheet-adhesive work inside bus-body.
abstract: We present the performance of a new push-pull ventilation system for sheet-adhesive work inside the body of a sightseeing coach. The target sightseeing coach was 12 m long, 2.5 m wide and 2 m high from floor to ceiling. We made a prototype of an airflow system and a half-scale model of the bus-body. The half scale model was 6 m long, 1.25 m wide and 0.965 m high. The push-pull ventilation system and half-scale model were used to evaluate the flow distributions inside the model. We also measured the concentration of xylene and methanol vapors during simulated sheet-adhesive work. As a result, it was found that the best combination was a the push flow of 24 m3/min and a pull flow of 78 m3/min in this model, and the flow velocity in the model was less than 1 m/s. This system is potentially applicable to any interior work for not only bus-bodies but also train and airplane bodies, which have elongated and confined space with many openings.
authors.affiliation: National Institute of Industrial Health, 6-21-1 Nagao, Tama, Kawasaki, 214-8585, Japan.
authors.forename: Hisao
authors.initials: H
authors.lastname: Yotsumoto
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Hayakawa
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Myojo
mesh_terms: D000269:Adhesives / Q000009:adverse effects; D004867:Equipment Design; D006801:Humans; D007564:Japan; D018986:Motor Vehicles; D016273:Occupational Exposure / Q000517:prevention & control*; D012997:Solvents / Q000009:adverse effects; D014691:Ventilation / Q000295:instrumentation*
chemical_list: D000269:Adhesives; D012997:Solvents