I have a tank of oil which I plan to heat 24/7 with constant 15 kW. I want to dissipate this energy using water as a coolant. I have the outside unit of an out of order split type air conditioner that could be used as a radiator to heat the environment.
Can I dissipate this much energy on such a radiator?
How should I exchange heat between the oil and the water? I thought of a heat exchanger used in floor heating. I saw some rated 70 kW and above. But I can't imagine how it works seeing it's small size.
The tank is about (1*1*1) m, filled with oil. I would use only as much oil as needed to immerse the electronics I want to keep cool at <50 °C. The energy to be dissipated is constant 15 kW. The A/C radiator with a fan is installed ~5 m above ground, the tank being on the ground. I want cooling to work also in the hottest summer, topping at about 40 °C on the hottest days of July. The system must be closed, because I don't have infinite amount of water.