Abstract
THE importance of a proper system of heating and A ventilation in factories for the comfort and health of the workers need not be emphasised. Considerable difference of opinion as to the correct system probably exists amongst engineers, so that a scientific examination of various common methods should prove of value in selecting that one which the workers find most satisfactory. Dr. H. M. Vernon and T. Bedford1 have recently made a physiological study of the ventilation and heating in certain factories. Continuous records of air velocity and air temperature were taken by means of the hot-wire anemometer and the thermopile respectively. Vane anemometers to determine the directions of the air currents were also used, as well as the katathermometer for direct estimations of the cooling power of the air. The following may be considered the criteria by which a heating and ventilating system should be judged. The room should feel comfortably warm and fresh, yet be without draughts, the temperature at head level should be cooler than that at the level of the feet, and the incidence of sickness and ill-health should be a minimum.
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References
Medical Research Council: Industrial Fatigue Research Board. Report No. 35: A Physiological Study of the Ventilation and Heating in certain Factories. By H. M. Vernon and T. Bedford; assisted by C. G. Warner. Pp. iv+82. (London: H.M. Stationery Office, 1926.) 3s. net.
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Ventilation in Factories. Nature 118, 536–537 (1926). https://doi.org/10.1038/118536b0
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DOI: https://doi.org/10.1038/118536b0