You could check my publications in hydrothermal flames. There are plenty of references that could be of relevance for you there.

 Hello

Are you referring to this one?

Hot surface ignition of oxygen-ethanol hydrothermal flame

Thank You

Hi, 

actually all these works refer to hydrothermal flames.

• Hot surface ignition of oxygen-ethanol hydrothermal flames
• Simulating Supercritical Water Jets with a Variable Turbulent Prandtl Number
• Hydrothermal flame impingement experiments. Combustion chamber design and impingement temperature profiles
• Hot-wire ignition of ethanol–oxygen hydrothermal flames
• Heat transfer of supercritical mixtures of water, ethanol and nitrogen in a bluff body annular flow

Hi

Thanks for help. Will definitely go through them.

What about a simple r744 compressor as used in trans-critical co2 refrigeration?

Can you give some basic paper for the same? I have read this somewhere but don't understand the basic advantage of using trans-critical path.

The transcritical CO2 refrigeration/heat pump cycle is a good example of an application where the fluid is in the near-critical region.

The refrigerant gas is evaporated and then compressed from the sub-critical pressure (Pcrit = 73.9 bar ) in a compressor to the over-critical pressure.

The heat transfer process when cooling the supercritical fluid is very efficient, and is taken advantage of in CO2 hot water heat pumps.

See this papers for more information and basics on the transcritical CO2 cycle:

- "Current Status on Heat Pumps With Carbon Dioxide as Working Fluid" by P. Neksa

- Article CO2-heat pump water heater: Characteristics, system design a...