Researchers at the Norwegian science institute SINTEF have been testing different types of water distribution cabinets.
Reviewed by Megan Craig, M.Sc.Oct 30 2023 Cabinets that combine the distribution of both domestic tap water and water for floor heating, are now shown to represent an unnecessary risk of Legionnaires' disease.
The Legionella bacterium can establish itself in the biofilm that forms on the inside of water pipes, where it can reproduce if conditions are favourable. Once the bacterium has established itself in the plumbing system, it can be difficult to get rid of. The poorest performers are the combi-cabinet systems, in which tap water and water for floor heating are installed side by side in the same cabinet. Not surprisingly, the floor heating system gives off a lot of heat. This causes the temperature in the cabinet to rise to as much as 40 °C, offering the best possible temperature range for establishment of the Legionella bacterium.
Keep the water as cold as possible The prevention of bacterial growth is thus all about maintaining the correct temperature conditions in the water pipes. Cold water must be kept at low temperatures, preferably below 20 °C. In practice, this causes complications, because standing water in the plumbing system will soon acquire the same temperature as its surroundings.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Arsenal: Arteta reveals Martin Odegaard is 'carrying a little thing'The Norwegian was rested in Saturday's 5-0 win over Sheffield United.
続きを読む »
Researchers Develop Thermally Stable Perovskite Solar CellsA team of scientists from the University of Hong Kong CityU has developed a self-assembled monolayer that enhances the thermal stability of perovskite solar cells. The cells retain over 90% of their efficiency even after being exposed to high temperatures for over 1,000 hours.
続きを読む »
Southern Water Apologises for Tragic Floods in HastingsSouthern Water has apologised to residents after heavy rain caused floods in Hastings, damaging homes and businesses. The Priory Meadow Shopping Centre had to be evacuated, and some residents had to be taken out of their houses. The flooding came just eight days after a previous flood in January, which was caused by heavy rainfall, a high tide, and a blocked sewer. The affected residents and businesses are facing significant losses and Southern Water has expressed their apologies for the inconvenience caused.
続きを読む »
Roofs ripped off and homes under water in Sussex and Hampshire - Extreme weather in picturesMore flooding predicted across the south as weather warnings remain in place.
続きを読む »
Search underway for man in difficulty in water near Burnham jettyCoastguards, Police, RNLI lifeboats and BARB Search & Rescue have launched a search for a man who was seen entering the water near the Burnham jetty. The search operation began on Sunday 29 October at around 4pm.
続きを読む »