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Member • Aug 12, 2011
Member • Aug 12, 2011
Member • Sep 12, 2011
Member • Sep 14, 2011
Consider 10,000 m3 of water 1 cm above ground level and 10 m3 of water 10 m above ground level. Both have the same potential energy. However, the second law of thermodynamics shows that the energy recovery from the 10 m high source will be higher than the one from the lower level. This is because of the former having a higher availability. Likewise, recovering heat from a thermal source near ambient will be less efficient. It is currently not worth the cost of recovery.akpowerThe designers take utmost care for heat recovery from fuels while designing power plant equipments as well as preservation of it for maximum utilization .With advent of better heat insulation materials,better heat transfer materials in heat exchangers,precious little heat is wasted outside thermal cycle. However any heat having temperature more than atmospheric temperature is a loss. What are methods available to recover this low temp.heat in a Thermal Power Plant?
Member • Sep 14, 2011
Member • Sep 14, 2011
Member • Sep 14, 2011
Member • Sep 16, 2011
Member • Sep 16, 2011
Member • Sep 16, 2011
This report may trigger some ideas:akpowerMr. Bioramani has rightly pointed out. My query was about recovery of heat with low temperature but above atmospheric temp. Economics of method will depend upon quantity of heat being lost / recovered. It may be heat exchanger, secondary fluid , but mostly static in nature.
Member • Sep 16, 2011
Member • Sep 16, 2011
Thanks for the info on supercritical CO[SUB]2[/SUB]. My only involvement with this was for extracting spice oleoresins from raw tropical spices. Live and learn.DaS EnergyHello Bioramani,
Thank you for the most interesting link. I fully agree there is scope for improvement in Coal fed power stations. However our work is not with Coal but Green Fuels as such provides the neccessary heat when other drive lquid/gas is employed as opposed to water/ steam. One of the improvements when using Co2 as the driver is that internal boiler heating can be achieved by having flame within the liquid itself, by use of screw compresser. The ignition gasses having a higher pressure need to return to liquid allows them to be tapped of at cooling.
Member • Sep 16, 2011