蒸发冷却空调系统在中国西部的应用及其军团菌的控制

目前,蒸发冷却空调系统在我国西部地区的应用越来越广泛.虽然它也存在一些不足,但由于它采用100%全新风,所以它的室内空气品质较好.经过SARS肆虐之后,人们更应重视对军团菌的预防.本文针对在蒸发冷却空调机组、系统的设计,提出了一些预防和减少军团菌发病的想法.     

层次分析法(AHP)在军团菌杀灭方法评判中的应用

该文利用层次分析法(AHP)对军团菌杀灭方法进行综合评判。以中央空调循环冷却水系统为例,建立评价指标系统,对军团菌控制效果以及化学杀生剂进行综合评价,由此得到化学法是最适于中央空调循环冷却水系统的杀菌方法。其中军团菌特效杀菌剂的杀菌性能最佳,可作为应急处理药剂,二氧化氯、2,5-二溴海因、二氯异氰尿酸可作为日常处理药剂。在条件允许的情况下,可使用臭氧作为处理药剂。     

Legionnaires’ disease

G. W. Brundrett of the UK's Electricity Council Research Centre reviews and examines the water services within and around buildings, providing detailed conclusions and references.     

Legionella in domestic hot water systems

Outbreaks of Legionnaires' disease have been associated with extensive hot water systems such as those in hotels and hospitals. The extent to which domestic plumbing systems in Britain harbour legionellae is almost completely unknown.

The Electricity Research and Development Centre commissioned an investigation into the incidence of legionellae in 40 houses with hot water storage cylinders. Twenty houses had direct electric water heating, 20 had indirect water heating from a gas boiler.

To establish and identify the conditions conducive to colonization of domestic hot water systems by legionellae would require further, in depth, investigations of the all the factors involved.     

关于热泵热水机出水温度的探讨

分析热泵热水机出水温度确定的影响因素,认为主要考虑卫生问题和节能性。通过总结国内外相关标准、规范、手册等技术资料,认为60℃是比较合理的出水温度。同时指出,CO2作为热泵热水机制冷剂可以使机组出水温度和性能均获得提升,是热泵热水机产品升级的理想选择。