Please tell me about the latest types of heat exchangers and any available online references?
So far as materials go, the use of plastics in the exchangers rather than metal has been one of the latest advances. If you are asking about gases, work is being done to replace HFC's. One refrigerant that is being actively developed is CO2 (carbon dioxide). Now, if you were asking about novel or new-age developments, there is on-going work with thermotunneling and magnetics. You can go to the Department of Energy web site and eventually find more information.
It depend on the process u want to use heat exchanger if u want a large quantity of heat to be transferred or wt type of material u want to heat up or cool down we use for mass heat transfer and flow a slides assembled in especial design.i will give u details letter if u be more specific
