HI eddie snax ,i agree with what you have said,when loading fruit direct from the fields [grapes] you had to bring the temperature down in degrees, to +5 as the product was ambient .it would take a long time however you had that time to get back.
AS for a empty trailer you have no chance of getting it cold ,with no product in to keep the chill in as soon as you opened the doors all was lost…now days i have no idea,i know tesco deliver bananas at a chill temperature,has no one told them + 10 TO 15 road travelling temperature SHEERNESS to ITALY
.
I EXPECT A BATTERY POWER PACK WILL BE THE FUTURE G-TEC. just a thought how do they keep their food up on the space station chilled.
In my 45 years driving trucks I have only ever hauled 5 fridge trailers, 3 were when I did some freelance for Budgens and 2 were the 2 days I tried working for Faccenda chicken before I told them to stick it 
I had no idea how they worked and didn’t care. I have noticed some trailers belonging to food companies here that are run on some type of gas being pimped into the trailer, hence no diesel engines.
What’s needed for this old thread, is an old skill refrigeration engineer, are there any on tnuk. 
peggydeckboy:
HI eddie snax ,i agree with what you have said,when loading fruit direct from the fields [grapes] you had to bring the temperature down in degrees, to +5 as the product was ambient .it would take a long time however you had that time to get back.
AS for a empty trailer you have no chance of getting it cold ,with no product in to keep the chill in as soon as you opened the doors all was lost…now days i have no idea,i know tesco deliver bananas at a chill temperature,has no one told them + 10 TO 15 road travelling temperature SHEERNESS to ITALY
.
I EXPECT A BATTERY POWER PACK WILL BE THE FUTURE G-TEC. just a thought how do they keep their food up on the space station chilled.
Keeping warm, rather than cold, is a bigger problem in space isn’t it? Near zero degrees Kelvin I think, in the shade?
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When I think of all the fruit and veg’ I’ve pulled around, roped and sheeted…
peggydeckboy:
. just a thought how do they keep their food up on the space station chilled.
They keep it in a carrier bag and hang it outside from one of the door handles.
I hope this doesn’t mean a return to those gas fridges I used to haul around for Marks & Sparks / Gist. Nice and quiet, but gassing them up was always a bit of a drama! Robert
What fuel are they going to use to drive the compressor to manufacture liquid nitrogen n2 for freezing ?
Thicker walls and big batteries anyone? With tax and weight advantages for those foreward thinking operators.
A bit like the French who gave an extra half tonne on the gross for those who fitted retarders.
Because it was a good idea.
On a much smaller scale, I looked at a cab heater for my caravan but the problem of getting diesel to it was too much of a problem so I went for a propane heater and a battery that was charged by the car as I drove along. I can run a fridge on it too. I haven’t checked but I have no problems parked up with no engine running.
On the subject of driving off with plugs still hooked up, why did no-one think of wheel chocks rising from the ground linked to the plug which will only retract when the plug is disconnected?
there are plenty of gas powered forklift trucks in this industry, running day and night without any problems… the same engines would probably fit into the front of reefer trailers… problem solved
The alternative is as follows:
Most supermarket tri-axles going out - don’t get anywhere near 38t let alone 44t.
SO… The trailers could have, in theory six tonnes of batterys in them, to power the fridge compressors that way, with the things going on charge at the old power lead plug-ins one normally has when the trailer is dropped on a bay at a RDC for loading.
There might be a shortage of Lead & Sulphuric Acid in the wider economy, - but u know what? - I reckon Londonistan in particular, might welcome such a shortage of these particular two susbtances these days… 
…I mean, we’ve got a growing inner London population that want to love the rest of us outside London with a lead pipe, and then you’ve got these criminals going around splashing H
2SO
4 all over, to boot… 
I always smile when I see one of our Euro6 tractors leaving the yard towing a frigoblock refrgerated trailer which is chucking out fumes that make your eyes smart and its off to London!
Well I have held off replying to this thread for as long as I could. As the best authority on this subject as I am, I will keep it simple and straight forward. The problems you are all wittering about isn’t really a problem at all. There are countless alternatives to diesel powered refrigeration units. I find it amusing how most seem to think that CO2 is still a problem with asphyxiation and not opening a door for 8 mins or so. This was indeed a problem encountered years ago but nowadays not so much a problem, most supermarket refrigeration is run on CO2 and you don’t have to wait 8 mins to open a door to get your fish fingers out. Best leave these problems to us fridge men to sort out and to put a sensible solution in place. There really is no problem, it is simply that you do not know the answers. Refrigeration is a high tec scientific business nowadays and things have moved on since the problems that you all see.
UKtramp:
Well I have held off replying to this thread for as long as I could. As the best authority on this subject as I am, I will keep it simple and straight forward. The problems you are all wittering about isn’t really a problem at all. There are countless alternatives to diesel powered refrigeration units. I find it amusing how most seem to think that CO2 is still a problem with asphyxiation and not opening a door for 8 mins or so. This was indeed a problem encountered years ago but nowadays not so much a problem, most supermarket refrigeration is run on CO2 and you don’t have to wait 8 mins to open a door to get your fish fingers out. Best leave these problems to us fridge men to sort out and to put a sensible solution in place. There really is no problem, it is simply that you do not know the answers. Refrigeration is a high tec scientific business nowadays and things have moved on since the problems that you all see.
I thought you drove a truck for a living?
Harry Monk:
UKtramp:
Well I have held off replying to this thread for as long as I could. As the best authority on this subject as I am, I will keep it simple and straight forward. The problems you are all wittering about isn’t really a problem at all. There are countless alternatives to diesel powered refrigeration units. I find it amusing how most seem to think that CO2 is still a problem with asphyxiation and not opening a door for 8 mins or so. This was indeed a problem encountered years ago but nowadays not so much a problem, most supermarket refrigeration is run on CO2 and you don’t have to wait 8 mins to open a door to get your fish fingers out. Best leave these problems to us fridge men to sort out and to put a sensible solution in place. There really is no problem, it is simply that you do not know the answers. Refrigeration is a high tec scientific business nowadays and things have moved on since the problems that you all see.
I thought you drove a truck for a living?
No Harry I drive a truck for a hobby. My living is refrigeration.
UKtramp:
Well I have held off replying to this thread for as long as I could. As the best authority on this subject as I am, I will keep it simple and straight forward. The problems you are all wittering about isn’t really a problem at all. There are countless alternatives to diesel powered refrigeration units. I find it amusing how most seem to think that CO2 is still a problem with asphyxiation and not opening a door for 8 mins or so. This was indeed a problem encountered years ago but nowadays not so much a problem, most supermarket refrigeration is run on CO2 and you don’t have to wait 8 mins to open a door to get your fish fingers out. Best leave these problems to us fridge men to sort out and to put a sensible solution in place. There really is no problem, it is simply that you do not know the answers. Refrigeration is a high tec scientific business nowadays and things have moved on since the problems that you all see.
My, what a condescending post! Perhaps you can actually give us glimpse of your superior knowledge and suggest how things might pan out 
. Robert
ERF-NGC-European:
My, what a condescending post! Perhaps you can actually give us glimpse of your superior knowledge and suggest how things might pan out . Robert
Wasn’t meant to be, as I stated there are lots of alternatives to diesel powered refrigeration units. The reason for needing the diesel in the first place, is to drive the compressor in a vapor-compression refrigeration system which is common. Absorption systems are in development and in use where a compressor cycle cannot exist. Also lots of compressors are available that do not use fossil fuels, these are widely used in Atex environments. I have worked on many such systems. As said there are lots of other solutions that can be deployed. It isn’t all doom an gloom and there is nothing new in these systems other than it is cheaper to utilise a vapor-compression system.
UKtramp:
ERF-NGC-European:
My, what a condescending post! Perhaps you can actually give us glimpse of your superior knowledge and suggest how things might pan out . Robert
Wasn’t meant to be, as I stated there are lots of alternatives to diesel powered refrigeration units. The reason for needing the diesel in the first place, is to drive the compressor in a vapor-compression refrigeration system which is common. Absorption systems are in development and in use where a compressor cycle cannot exist. Also lots of compressors are available that do not use fossil fuels, these are widely used in Atex environments. I have worked on many such systems. As said there are lots of other solutions that can be deployed. It isn’t all doom an gloom and there is nothing new in these systems other than it is cheaper to utilise a vapor-compression system.
Well that’s heartening to hear UKtramp! I must say I’d have done a lot more long-haul fridge work if I hadn’t had to sleep with that racket going on from the Petter/ThermoKing. And as I said earlier, I didn’t enjoy gassing up the old co2 jobs. Robert
ERF-NGC-European:
Well that’s heartening to hear UKtramp! I must say I’d have done a lot more long-haul fridge work if I hadn’t had to sleep with that racket going on from the Petter/ThermoKing. And as I said earlier, I didn’t enjoy gassing up the old co2 jobs. Robert
Me too, although I never went near a frigo in my career until I came to live here and the boss gave me a brand new Magnum…and a frigo. 
Mind you, if I could get away with it I turned it off while sleeping, and if not, dropped the trailer and parked round the back. Would have been a shock if I opened the curtains in the morning and saw the open road ahead. 
I would love to see them get banned. I hate the bl00dy fridge trailers when they park that ■■■■ up at services, with the fridge on, and ruin everyones sleep. When I had fridge trailer, I’ve just turned it off for the 45 min rest. Temp goes up by 2-4 deg C. It won’t do any damage.
