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C.R. Krishna
Brookhaven National Laboratory
14Publications
3H-index
135Citations
Publications 14
Newest
Biodiesel is produced in the United States to D 6751, an ASTM standard. The source material in this fledgling industry in the U.S. is primarily soy oil, though other sources such as canola oil, waste oils, and greases from food and other sources are beginning to be exploited. At present, the referenced ASTM standard does not specify cloud and pour points values that are much higher for biodiesel than diesel derived from petroleum but allows them to be specified by the customer. There can be sign...
#1A. Naidja (BNL: Brookhaven National Laboratory)H-Index: 1
#2C.R. Krishna (BNL: Brookhaven National Laboratory)H-Index: 3
Last.Devinder Mahajan (BNL: Brookhaven National Laboratory)H-Index: 20
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Abstract The purpose of this review was to integrate the most recent and relevant investigations on the auto-oxidation of fuel oils and their reforming into hydrogen-rich gas that could serve as a feed for fuel cells and combustion systems. We consider the incorporation of partial oxidation under cool flame conditions to be a significant step in the reforming process for generation of hydrogen-rich gas. Therefore, we have paid particular attention to the partial oxidation of fuels at low tempera...
#1C.R. KrishnaH-Index: 3
#2T. ButcherH-Index: 5
Last.R.J. McDonaldH-Index: 1
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The work reported in the present paper represents the results from a continuing development of low firing-rate and low soot-producing oil burners for residential applications at Brookhaven National Laboratory. The reduction in the heating requirements of homes through better insulation and lowering of thermostat set temperatures has been spurred by the increasing cost of energy. This makes existing as well as new heating units (boilers/furnaces) built to previous requirements oversized for the l...
#1C.R. KrishnaH-Index: 3
#2T. ButcherH-Index: 5
Last.R.J. McDonaldH-Index: 1
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Fuel atomization concepts and soot emission from spray flames have been reviewed for application to the development of low firing rate and low soot emitting residential oil burners. Project targets of firing rates of less than 0.5 gallons per hour and soot emission rates of 0.3 lbs per 1000 gallons or less have been set. Air atomization has been identified as capable of generating the small drop sizes that will be required. Combustion conditions that are conducive to low soot operation have been...
#1T. ButcherH-Index: 5
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A 100 MW integrated gasification/combined cycle generating plant was recently put into operation at the Cool Water generating station of Southern California Edison Co. Coal is fed into the gasifier as a coal water slurry. This paper reports on a study on the slurryability of candidate gasifier coals and slurry formulation options for use in systems of this type. The ten candidate coals studied ranged in equilibrium moisture from 1 to 13%. A ranking was made of the relative slurryability of the c...
#1T. ButcherH-Index: 5
#2C.R. KrishnaH-Index: 3
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General considerations associated with the formulation and use of coal-water fuels (CWF) in heating applications are discussed in this overview. Selection of coal for CWF involves consideration of coal volatiles, heating value, ash composition and content, and equilibrium moisture. Additives that can be used to modify the fuel mix properties include dispersants, pH modifiers, stablizers, and biocides. The flow properties of the formulations produced are non-Newtonian (both time-dependent viscosi...
#2C.R. KrishnaH-Index: 3
Last.P. MarnellH-Index: 1
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The development and application of coal-water slurry fuels is a key factor in the future outlook for coal utilization in America. Coal-water slurry fuel is one of the most exciting energy developments in recent years. This synthetic fuel has generated enormous interest from many diverse groups. Coal in a liquid form has properties which will allow it to be handled and burned in equipment designed for petroleum fuels. Further, it can be made available at a cost comparable to present fuel costs. C...
#1Richard S. Sapienza (BNL: Brookhaven National Laboratory)H-Index: 3
#2T. Butcher (BNL: Brookhaven National Laboratory)H-Index: 5
Last.Jeffrey S. Gaffney (BNL: Brookhaven National Laboratory)H-Index: 12
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The diesel engine’s proven fuel economy and lower emissions of unburned hydrocarbons and carbon monoxide makes it a viable alternative to a gasoline automotive plant, but the inherent production of particulate matter (soot) threatens the expanded use of the diesel engine.
#2C.R. KrishnaH-Index: 3
Last.P. MarnellH-Index: 1
view all 4 authors...
Coal-water slurry fuels is one of the most exciting energy development in recent years. This synthetic fuel has generated enormous interest from many diverse groups. Coal in a liquid form has properties which will allow it to be handled and burned in equipment designed for petroleum fuels. Further, it can be made available at a cost comparable to present fuel costs. Coal-water slurry fuels can accomplish this without incurring the high capital costs involved in the conversion of coals to synfuel...
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