|
What is it called? (An Anti-convection Air Tube?)
On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell wrote:
I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 |
What is it called? (An Anti-convection Air Tube?)
On 03/08/2020 20:50, Nick Odell wrote:
I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Ceiling fan? |
What is it called? (An Anti-convection Air Tube?)
I am thinking about constructing a tube to suck hot air from near the
ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick |
What is it called? (An Anti-convection Air Tube?)
On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell wrote:
I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. destratification duct https://www.tombling.com/ducting/destrat.htm destratification fans are usually used, but adding a duct improves efficiency Owain |
What is it called? (An Anti-convection Air Tube?)
On 03/08/2020 20:50, Nick Odell wrote:
I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick use a fan blowing down instead ?...seen it done in a church used as offices.... |
What is it called? (An Anti-convection Air Tube?)
On Mon, 3 Aug 2020 11:19:40 -0700 (PDT), harry
wrote: On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 Thanks but that is a more sophisticated system than I have in mind. The thing I am thinking of is nothing more than an open-ended vertical tube mounted against a wall - one in a school where I used to work was rectangular section and simply looked like a covering for pipes or cables. At one end of the tube is a fan - like a desktop computer fan - and it sucks the hot air in at the top and blows it out at the bottom to even out the temperature through the room. Nick |
What is it called? (An Anti-convection Air Tube?)
On Mon, 3 Aug 2020 19:42:56 +0100, Andy Bennet wrote:
On 03/08/2020 20:50, Nick Odell wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Ceiling fan? That would do the same job but more conspicuously. The tube I have described in my reply to Harry just sits quetly in the corner of the room and the airflow is no more than from a quiet desktop computer. Nick |
What is it called? (An Anti-convection Air Tube?)
On Mon, 03 Aug 2020 20:40:07 +0100, Chris Hogg wrote:
On Mon, 03 Aug 2020 19:21:31 -0300, Nick Odell wrote: On Mon, 3 Aug 2020 11:19:40 -0700 (PDT), harry wrote: On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 Thanks but that is a more sophisticated system than I have in mind. The thing I am thinking of is nothing more than an open-ended vertical tube mounted against a wall - one in a school where I used to work was rectangular section and simply looked like a covering for pipes or cables. At one end of the tube is a fan - like a desktop computer fan - and it sucks the hot air in at the top and blows it out at the bottom to even out the temperature through the room. Nick Where I used to work they had a large and high sectional building housing the pilot-plant equipment. Despite using industrial heaters it was always chilly in there, and expensive to run the heaters, until one bright spark suggested the system you've described. Worked very well - evened up the temperature from floor to ceiling significantly and reduced the costs. Earlier today I was looking at some square-section white PVC guttering downpipe. That would be ideal for what you want, fitted into the corner of a room and unobtrusive. That is exactly the sort of thing I had in mind. Probably done before redecorating the room so I can paper/paint/blend it in some way so that it does not look like PVC guttering on the inside wall :-) Nick |
What is it called? (An Anti-convection Air Tube?)
On 03/08/2020 23:21, Nick Odell wrote:
On Mon, 3 Aug 2020 11:19:40 -0700 (PDT), harry wrote: On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 Thanks but that is a more sophisticated system than I have in mind. The thing I am thinking of is nothing more than an open-ended vertical tube mounted against a wall - one in a school where I used to work was rectangular section and simply looked like a covering for pipes or cables. At one end of the tube is a fan - like a desktop computer fan - and it sucks the hot air in at the top and blows it out at the bottom to even out the temperature through the room. Nick Covid 19 distribution system? -- "Anyone who believes that the laws of physics are mere social conventions is invited to try transgressing those conventions from the windows of my apartment. (I live on the twenty-first floor.) " Alan Sokal |
What is it called? (An Anti-convection Air Tube?)
On 04/08/2020 12:16, The Natural Philosopher wrote:
On 03/08/2020 23:21, Nick Odell wrote: On Mon, 3 Aug 2020 11:19:40 -0700 (PDT), harry wrote: On Monday, 3 August 2020 17:50:53 UTC+1, Nick OdellĀ* wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 Thanks but that is a more sophisticated system than I have in mind. The thing I am thinking of is nothing more than an open-ended vertical tube mounted against a wall - one in a school where I used to work was rectangular section and simply looked like a covering for pipes or cables. At one end of the tube is a fan - like a desktop computer fan - and it sucks the hot air in at the top and blows it out at the bottom to even out the temperature through the room. Nick Covid 19 distribution system? Dust recirculation system |
What is it called? (An Anti-convection Air Tube?)
On Tuesday, 4 August 2020 12:16:24 UTC+1, The Natural Philosopher wrote:
Covid 19 distribution system? Easy enough to put some UV C lights in the tube. The airflow will cool the lights and the lights will disinfect the air. Owain |
What is it called? (An Anti-convection Air Tube?)
On 04/08/2020 17:08, Andrew wrote:
Dust recirculation system Unlikely. Most dust sinks to the floor; it will be picking up cleaner air from near the ceiling. Andy |
What is it called? (An Anti-convection Air Tube?)
On Tuesday, 4 August 2020 17:09:16 UTC+1, wrote:
On Tuesday, 4 August 2020 12:16:24 UTC+1, The Natural Philosopher wrote: Covid 19 distribution system? Easy enough to put some UV C lights in the tube. The airflow will cool the lights and the lights will disinfect the air. Owain Disinfection requires dangerous amounts of UVC not compatible with human occupation. NT |
What is it called? (An Anti-convection Air Tube?)
On Tue, 4 Aug 2020 17:08:25 +0100, Andrew
wrote: On 04/08/2020 12:16, The Natural Philosopher wrote: On 03/08/2020 23:21, Nick Odell wrote: On Mon, 3 Aug 2020 11:19:40 -0700 (PDT), harry wrote: On Monday, 3 August 2020 17:50:53 UTC+1, Nick Odell* wrote: I am thinking about constructing a tube to suck hot air from near the ceiling of a high-ceiling room and reintroduce it and mix it with the colder air at floor level. I have seen these things at work in other buildings but I do not know what they are called. I would like to read a bit more about them and find out if any improvements from mixing hot air into the cold are worth the effort but I am stuck by not knowing a suitable search term. Any suggestions. please? Nick Air recirculation. It tends to arise in domestic air heating systems. https://www.google.com/search?sxsrf=...=819 &bih=500 Thanks but that is a more sophisticated system than I have in mind. The thing I am thinking of is nothing more than an open-ended vertical tube mounted against a wall - one in a school where I used to work was rectangular section and simply looked like a covering for pipes or cables. At one end of the tube is a fan - like a desktop computer fan - and it sucks the hot air in at the top and blows it out at the bottom to even out the temperature through the room. Nick Covid 19 distribution system? Dust recirculation system It is not supposed to be like a Henry vacuum cleaner on blow: it is a very gentle displacement of the air with the volume of the room being turned over roughly 2-4 times an hour. Nick |
What is it called? (An Anti-convection Air Tube?)
On Tuesday, 4 August 2020 23:59:16 UTC+1, wrote:
Easy enough to put some UV C lights in the tube. The airflow will cool the lights and the lights will disinfect the air. Disinfection requires dangerous amounts of UVC not compatible with human occupation. The UVC would be contained in the air duct. https://www.puravent.co.uk/blog/in-duct-uv-c/ My point is not that this would be a practical application for the OP; merely refuting the comment that air duct is necessarily a Covid "distribution system". Owain |
What is it called? (An Anti-convection Air Tube?)
On Wednesday, 5 August 2020 09:03:16 UTC+1, wrote:
On Tuesday, 4 August 2020 23:59:16 UTC+1, tabby wrote: Easy enough to put some UV C lights in the tube. The airflow will cool the lights and the lights will disinfect the air. Disinfection requires dangerous amounts of UVC not compatible with human occupation. The UVC would be contained in the air duct. https://www.puravent.co.uk/blog/in-duct-uv-c/ My point is not that this would be a practical application for the OP; merely refuting the comment that air duct is necessarily a Covid "distribution system". Owain Necessarily no. Practically yes. |
| All times are GMT +1. The time now is 03:19 PM. |
Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 DIYbanter