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JohnM
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« Reply #60 on: June 21, 2026, 18:25:59 » |
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The Met Office is offering us here 37-39-38°C for the middle of the week. Gulp! I fear it's an offer I'm not allowed to refuse, either. Only 39? [Image from here is not available to guests]  (although it's now dropped back to 33-37-39-39) |
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John D
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« Reply #61 on: June 21, 2026, 21:00:49 » |
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Blinds closed to keep sun out
Windows closed to keep heat out
Air Conditioning running in lounge and bedrooms, 21c in both, good investment 4 years ago
Dealing with heat is more a question of how much want to invest to continue reasonably normally in modern climate, than a question is it technically possible to do so. There are special labs for climate testing, and I believe there is one in Vienna for trains, can be tested from -50c to +60c far beyond temperature range needed in UK▸ .
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broadgage
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« Reply #62 on: June 22, 2026, 09:55:28 » |
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Blinds closed to keep sun out
Windows closed to keep heat out
Air Conditioning running in lounge and bedrooms, 21c in both, good investment 4 years ago
Dealing with heat is more a question of how much want to invest to continue reasonably normally in modern climate, than a question is it technically possible to do so. There are special labs for climate testing, and I believe there is one in Vienna for trains, can be tested from -50c to +60c far beyond temperature range needed in UK▸ .
I too have been very glad of air conditioning, only a portable unit but it helps a lot. As regards trains, I believe that all new trains should be designed for normal operation at an outside air temperature of 40 degrees, and should cope with 45 degrees (at a reduced performance, and with a slight increase in internal temperatures) This is considerably in excess of Met office records, but a plausible temperature that could be reached in direct sun, in a chalk cutting, and with another train alongside producing heat. |
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU▸ is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
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stuving
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« Reply #63 on: June 22, 2026, 10:27:43 » |
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I too have been very glad of air conditioning, only a portable unit but it helps a lot.
As regards trains, I believe that all new trains should be designed for normal operation at an outside air temperature of 40 degrees, and should cope with 45 degrees (at a reduced performance, and with a slight increase in internal temperatures)
This is considerably in excess of Met office records, but a plausible temperature that could be reached in direct sun, in a chalk cutting, and with another train alongside producing heat.
BS EN 13129-1 "‘Railway applications - Air conditioning for main line rolling stock – Comfort parameters" has got there before you. So has BS EN 50125-1 "Railway applications. Environmental conditions for equipment - Rolling stock and on-board equipment". Both specify assumed exterior conditions which, for the mildest European zone, go up to 40°. Both have been revised since the versions I have found some information about, and as usual the actual texts are not available. But I imagine that if the top temperature has changed it can only have gone up a bit. I was struck by this scoping comment of BSI▸ 's: "Note 1: BS EN 50125-1 does not apply to cranes, mining vehicles, cable cars. It also does not apply to natural disasters. " Obviously that's what is wrong with all these natural disasters we keep getting - they are not being specified in standards! |
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JohnM
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« Reply #64 on: June 22, 2026, 11:27:42 » |
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We've now been upgraded to Met Office red warnings for Wednesday(40)/Thursday(39) in Melksham.
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Chris from Nailsea
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« Reply #65 on: June 22, 2026, 11:31:41 » |
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William Huskisson MP▸ was the first person to be killed by a train while crossing the tracks, in 1830. Many more have died in the same way since then. Don't take a chance: Stop, Look, Listen.
"Level crossings are safe, unless they are used in an unsafe manner." Discuss.
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ChrisB
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« Reply #66 on: June 22, 2026, 12:26:47 » |
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Heritage Rail GWSR» have cancelled all services this week owing to the heatwave.
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broadgage
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« Reply #67 on: June 22, 2026, 12:30:46 » |
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AFAIK▸ , only one "red heat health alert" has been issued in the past.
Air conditioning is becoming a requirement rather than a luxury.
Certain small and foolish persons have predicted that broadgage will burst or explode due to the heat !
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU▸ is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
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TaplowGreen
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« Reply #68 on: June 22, 2026, 12:35:51 » |
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AFAIK▸ , only one "red heat health alert" has been issued in the past.
Air conditioning is becoming a requirement rather than a luxury.
Certain small and foolish persons have predicted that broadgage will burst or explode due to the heat !
Keep the Port chilled broadgage! |
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Chris from Nailsea
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« Reply #69 on: June 22, 2026, 13:21:08 » |
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Heritage Rail GWSR» have cancelled all services this week owing to the heatwave.
Are they getting all steamed up about it?'    |
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William Huskisson MP▸ was the first person to be killed by a train while crossing the tracks, in 1830. Many more have died in the same way since then. Don't take a chance: Stop, Look, Listen.
"Level crossings are safe, unless they are used in an unsafe manner." Discuss.
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broadgage
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« Reply #70 on: June 22, 2026, 14:26:56 » |
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AFAIK▸ , only one "red heat health alert" has been issued in the past.
Air conditioning is becoming a requirement rather than a luxury.
Certain small and foolish persons have predicted that broadgage will burst or explode due to the heat !
Keep the Port chilled broadgage! ,The port season is over ! This time of year, I favour Plymouth Navy strenth gin and tonic with ice, or chilled beer. |
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU▸ is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
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TaplowGreen
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« Reply #71 on: June 22, 2026, 15:18:14 » |
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It's somewhat ironic that people are now investing in air conditioning, given it has a significant impact on climate change via its high energy demands, leading to "weather events" such as we are seeing now!
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Chris from Nailsea
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« Reply #72 on: June 22, 2026, 15:24:57 » |
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Certain small and foolish persons ...
Cats, or seagulls?  |
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William Huskisson MP▸ was the first person to be killed by a train while crossing the tracks, in 1830. Many more have died in the same way since then. Don't take a chance: Stop, Look, Listen.
"Level crossings are safe, unless they are used in an unsafe manner." Discuss.
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broadgage
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« Reply #73 on: June 22, 2026, 19:14:46 » |
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It's somewhat ironic that people are now investing in air conditioning, given it has a significant impact on climate change via its high energy demands, leading to "weather events" such as we are seeing now!
Agree entirely. It is however relatively easy to replace the energy used by air conditioning, with more solar power. Either locally by means of panels mounted on/near the structure being cooled, or remotely by means of panels connected to the grid elsewhere.There is at least an approximate coincidence between peak solar energy production, and peak air conditioning demand. For new buildings air conditioning demand may be reduced by better design. |
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« Last Edit: June 23, 2026, 10:42:56 by broadgage »
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A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU▸ is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
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