Anttonen H, Niskanen J
Oulu Regional Institute of Occupational Health, Finland.
Arctic Med Res. 1995;54 Suppl 2:55-9.
The aim of the work has been to develop a planning guide for local infrared heating systems and to compare the results to the heaters in the work place. The planning process for radiators is started by defining the goal ambient temperature and then the electric power needed for the radiators. The planning result should always be compared to the recommendations for infrared radiation. The usefulness of the planning instructions were tested by building a local heater for a cooled storage where a computer was used. The increase in operative temperature and the physiological responses of workers were measured as well as the change in the thermal sensations after using heaters. With these heaters the operative temperature increases 7 degrees C. The skin temperature of the fingers increased about 7 degrees C, which is meaningful, when finger dexterity is needed in using computers. Also the thermal sensations increased all over the body. Both the planning instructions developed and the local heating system turned out to be very useful. Also the low costs of local heaters are a good reason for using them. However the exact direction and the narrow bean cone of the heaters are important in obtain the maximum benefit from them.
这项工作的目的是为局部红外加热系统制定一份规划指南，并将结果与工作场所的加热器进行比较。散热器的规划过程始于确定目标环境温度，然后是散热器所需的电力。规划结果应始终与红外辐射的建议进行比较。通过为一个使用计算机的冷藏库建造一个局部加热器，测试了规划说明的实用性。测量了工作温度的升高、工人的生理反应以及使用加热器后热感觉的变化。使用这些加热器后，工作温度升高了7摄氏度。手指的皮肤温度升高了约7摄氏度，这在使用计算机需要手指灵活性时是有意义的。全身的热感觉也增加了。所制定的规划说明和局部加热系统都非常有用。局部加热器成本低也是使用它们的一个很好的理由。然而，加热器的确切方向和狭窄的光束锥对于从它们中获得最大益处很重要。
