ardi
09-06-2007, 04:12 AM
Hi, I'm student/researcher in refrigeration engineering.
I read about reverse cycle-hotgas defrost system from Kramer (Thermobank system), they use thermal storage to store the heat during refrig cycle (it acts as pre-condenser) and use it to re-evaporate the refrigerant during defrost cycle.
In my opinion, this system have energy efficiency advantage as less heat wasted and no additional energy to defrost. It may have disadvantages as it needs additioal equipment e.g. thermal storage, valves and piping, and also pressure drop consideration.
However, I think the benefit of energy efficiency is worth further investigation (use PCM, system efficiency etc.).
My lack of experiences in real system works, causes me to ask this forum:
Is this system have been widely applied?
if no, are there any technical reason for not applying it?
Are there any other advantage/disadvantages in this system?
Thank you, I hope I can learn more on this forum :)
Ardi
I read about reverse cycle-hotgas defrost system from Kramer (Thermobank system), they use thermal storage to store the heat during refrig cycle (it acts as pre-condenser) and use it to re-evaporate the refrigerant during defrost cycle.
In my opinion, this system have energy efficiency advantage as less heat wasted and no additional energy to defrost. It may have disadvantages as it needs additioal equipment e.g. thermal storage, valves and piping, and also pressure drop consideration.
However, I think the benefit of energy efficiency is worth further investigation (use PCM, system efficiency etc.).
My lack of experiences in real system works, causes me to ask this forum:
Is this system have been widely applied?
if no, are there any technical reason for not applying it?
Are there any other advantage/disadvantages in this system?
Thank you, I hope I can learn more on this forum :)
Ardi