Question on thermodynamics

Increasing the radius of conductor can reduce the resistence, but it also make it difficult to radiate heat. Increasing the number of cores doesn't affect the cooling adoption, just fill the space with coolant.


For engineering consideration, add cooling support can also increase the maximum capability of the power transmission. When the power requirement increases due to the population increase, technology development, etc., you don't need to rebuild the entire power transmission line, just turn on the air conditioner, what a simple thing! :)


For the reliability, I don't think it's a big problem, the airconditioner and the fridge can be used more than 5 years without any maintenance. The pain should only exist in the beginning period.

Increasing the radius of conductor can reduce the resistence, but it also make it difficult to radiate heat. Increasing the number of cores doesn't affect the cooling adoption, just fill the space with coolant.


For engineering consideration, add cooling support can also increase the maximum capability of the power transmission. When the power requirement increases due to the population increase, technology development, etc., you don't need to rebuild the entire power transmission line, just turn on the air conditioner, what a simple thing! :)


For the reliability, I don't think it's a big problem, the airconditioner and the fridge can be used more than 5 years without any maintenance. The pain should only exist in the beginning period.

Increasing the radius of conductor can reduce the resistence, but it also make it difficult to radiate heat. Increasing the number of cores doesn't affect the cooling adoption, just fill the space with coolant.


For engineering consideration, add cooling support can also increase the maximum capability of the power transmission. When the power requirement increases due to the population increase, technology development, etc., you don't need to rebuild the entire power transmission line, just turn on the air conditioner, what a simple thing! :)


For the reliability, I don't think it's a big problem, the airconditioner and the fridge can be used more than 5 years without any maintenance. The pain should only exist in the beginning period.

Reliability is a big problem: If your fridge breaks down you lose some food and it's annoying. If the airconditioner breaks down the room gets hot (or cold), you get a bit uncomfortable and it's annoying.  If the cooling on a transmission circuit breaksdown you could black-out a city - I think that that is a little more serious than annoying.


As I said before, cooling of transmission cables is not a new concept; there is a limit to what can be done, take a look at the literature out there.

Reliability is a big problem: If your fridge breaks down you lose some food and it's annoying. If the airconditioner breaks down the room gets hot (or cold), you get a bit uncomfortable and it's annoying.  If the cooling on a transmission circuit breaksdown you could black-out a city - I think that that is a little more serious than annoying.


As I said before, cooling of transmission cables is not a new concept; there is a limit to what can be done, take a look at the literature out there.

Reliability is a big problem: If your fridge breaks down you lose some food and it's annoying. If the airconditioner breaks down the room gets hot (or cold), you get a bit uncomfortable and it's annoying.  If the cooling on a transmission circuit breaksdown you could black-out a city - I think that that is a little more serious than annoying.


As I said before, cooling of transmission cables is not a new concept; there is a limit to what can be done, take a look at the literature out there.

The 90/20 deg C is just an example.. Whatever the average running temperature is, it should be higher than outdoor temp due to the joule heat. As long as the energy required by cooling system is smaller than the reduced heat, we are saving.


As you mentioned, a number of circuit are designed to share the load, thus there's fault tolerant ability in the electric network. Without cooling system, the power cable still can be broken, am I right?

The health check and management is widely used in telecom networks. Is it possible to used to check the status of the cooling system?


It's a good point that cooling system may break the power transmission. But can we identify the root cause and fix it?

The 90/20 deg C is just an example.. Whatever the average running temperature is, it should be higher than outdoor temp due to the joule heat. As long as the energy required by cooling system is smaller than the reduced heat, we are saving.


As you mentioned, a number of circuit are designed to share the load, thus there's fault tolerant ability in the electric network. Without cooling system, the power cable still can be broken, am I right?

The health check and management is widely used in telecom networks. Is it possible to used to check the status of the cooling system?


It's a good point that cooling system may break the power transmission. But can we identify the root cause and fix it?

The 90/20 deg C is just an example.. Whatever the average running temperature is, it should be higher than outdoor temp due to the joule heat. As long as the energy required by cooling system is smaller than the reduced heat, we are saving.


As you mentioned, a number of circuit are designed to share the load, thus there's fault tolerant ability in the electric network. Without cooling system, the power cable still can be broken, am I right?

The health check and management is widely used in telecom networks. Is it possible to used to check the status of the cooling system?


It's a good point that cooling system may break the power transmission. But can we identify the root cause and fix it?