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목영일 ( Young Il Mok ) 한국화학공학회 1977 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.15 No.4
Flammability and flame retardation of various polymers are reviewed. The important items discussed in this paper are Oxygen Index and Smoke Density Rating which are used for the measurement of flammability, name retardants and their mechanism which transform flammable polymers into non-flammable ones, processing methods for flame retardation, testing methods of flammability and the price trend of flame retardants. Index has some actual formulations of fire retardant paint, fire retardant resin and flame retardant fiber.
목영일 ( Young Il Mok ) 한국화학공학회 1980 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.18 No.4
The energy crisis of recent years is primarily a petroleum shortage. Thus because the depletion of world petroleum reserves can now be foreseen, a new form of portable energy will be needed to power gasoline and diesel engines. Alcohol is a portable, clean-burning form of energy that is already in limited use as a partial replacement for gasoline and diesel. The state of the art of gasohol (a blend containing, by volume, 10∼20% anhydrous alcohol and 80∼90% gasoline) and diesohol (a blend containing, by volume, 10% or more anhydrous alcohol and 90% or less diesel fuel) as conventional engine fuels is reviewed in two parts, the former in Part(I) and the letter in Part(II). Physico-chemical properties and performance characteristics of the blended fuels are discussed in conjunction with conventional engines. Alcohol-diesel blends exhibit, from one stand point, near interchangeability with, and from a different stand point, better performance characteristics than neat diesel fuels if some hardware modifications can be made. Necessity of product-oriented development work was stressed in order to arrive at Engineered Fuel Formulations encompassing as many different designs of engines and fuel compositions as possible. Also, economics aspects including that of producing ethyl alcohol from biomass are discussed.
목영일 ( Young Il Mok ) 한국화학공학회 1980 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.18 No.2
The energy crisis of recent years is primarily a petroleum shortage. Thus because the depletion of world petroleum reserves can now be foreseen, a new form of portable energy will be needed to power gasoline and diesel engines. Alcohol is a portable, clean-burning form of energy that is already in limited use as a partial replacement for gasoline and diesel. The state of the art of gasohol (a blend containing, by volume, 10∼20% anhydrous alcohol and 80∼90% gasoline) and diesohol (a blend containing, by volume, 10% or more anhydrous alcohol and 90% or less diesel fuel) as conventional engine fuels is reviewed in two parts, the former in Part(Ⅰ) and the latter in Part (Ⅱ). Physico-chemical properties and performance characteristics of the blended fuels are discussed in conjunction with conventional engines. Alcohol gasoline blends exhibit, from one stand point, near interchangeability with, and from a different stand point, better performance characteristics than gasoline. Also, economics aspects including that of producing ethyl alcohol from biomass are discussed.
목영일,장보영 ( Young Il Mok,Bo Young Jang ) 한국화학공학회 1978 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.16 No.2
This report is intended to provide the readers with a comprehensive look at the state of the art of composite materials technology, with particular attention on how to go about selecting right material for a given application and inversely finding new applications for a given composition. A rationale is presented herein which reaffirms needs of composite materials presently in use and of further search of better application methods and new and better materials. Much of the up-to-date information has been included in the form of tables and figures. In the course of fulfilling these aims, relevant concepts, methods and classifications are introduced wherever appropriate to relate theoretical aspects of the technology to practical applications.
목영일,박방삼 ( Young Il Mok,Bang Sam Park ) 한국화학공학회 1977 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.15 No.6
This report is intended to give the readers a comprehensive look at the state of the art of size reduction technology, with particular attention on how to go about selecting right equipment and making the best use of existing equipment in order to achieve given service requirements. Much of the up-to-date information has been presented herein in the form of tables which include manufacturers` lists of various operational and analytical equipment. In the course of fulfilling this aim, relavent concepts, methods and classifications, both new and old, are introduced wherever appropriate to relate theoretical aspects to practical applications.