All issues
Successor
Volume 58, Issue 6
Displaying 1-6 of 6 articles from this issue
- |<
- <
- 1
- >
- >|
-
Takehiko FURUSAWA, Shigekatsu MORI1979 Volume 58 Issue 6 Pages 399-407
Published: June 20, 1979
Released on J-STAGE: February 23, 2011
JOURNAL FREE ACCESSThe feature of fluidized bed combustion of coal can be considered to orginate from the feature of fluidized bed operation and multifunctional characters which enable high temperature desulfurization and reduction of nitric oxide emission during combustion. The purpose of this review is to examine the present status of the development of such functions and to indicate the direction of future development. The importance of the devements which take advantages of such multifunctional characters is emphasized.View full abstractDownload PDF (1333K) -
Yoshiro MORITA, Yoshinori KONDO1979 Volume 58 Issue 6 Pages 408-415
Published: June 20, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSFluidized bed combustion with dolomite or limestone as the bed material is being developed as an environmentally acceptable method of utilizing residual oils with high sulfur content to generate electricity and/or steam.
Furthermore, reduced NOx emission can be achieved by the lower operating temperature in fluidized bed combustion than conventional combustors.
However, the SOx and NOx emission standards in Japan are so severe comparing with those in U.S.A. and other countries that the new methods must be developed.
This review describes the fundamental researches on the essential problems in the fluidized bed combustion of residual oils; combustion efficiency of residual oils, desulfurization of SOx, regeneration of sorbents, and the reduction of NOx.
Furthermore, the future applications of the fluidized bed combustion system in Japan are discussed.View full abstractDownload PDF (1137K) -
Saburo MIZUGUCHI1979 Volume 58 Issue 6 Pages 416-421
Published: June 20, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe fluidized bed incinerator delivered to Suzu City Scavenging Centel in the first equipment of this type manufactured by Ebara for treating municipal waste.
Testing was started in May 1978 and it was commissioned in June 1978.
The report covers:
1. Outline of apparatus (specifications of equipment and flow sheet)
2. Test report (test conditions and other items analyzed)
3. Environmental protection (HCl. NOx)View full abstractDownload PDF (742K) -
Hiroki SADAMORI1979 Volume 58 Issue 6 Pages 422-431
Published: June 20, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSCatalytic combustion burners for heating principally used on natural gas are reviewed from the following view points.
1) Choice of catalysts for complete oxdation
2) Producing of combustion catalysts
3) Progress of catalytic burners
Until now, catalytic burners for natural gas heve not been developed successfully because of lower completeness of combustion of methane.
Hower, recent efforts for improvement of catalysts have contributed to raising combustion efficiency of methane up to that of liquefied petroleum gas.
Accordingly, further developments of catalytic burners will be expected in future.View full abstractDownload PDF (1426K) -
Akira IWAMA, Hiroki ISHIDA, Motohiko IWATA1979 Volume 58 Issue 6 Pages 432-448
Published: June 20, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThis review firstly describes the recently published theoretical analyses and experimental studies on the single droplet combustion of emulsified hydrocarbon fuels, and the results of application to direct-injection type combustors such as large and small scale boilers and diesel engines from a view point of low pollution and energy saving. Secondly, the emulsified fuels having high internal oil phase ratio were evaluated from a standpoint of safety, with the experimental data about the pool ignition and combustion . It is explained based on the fact that the singular combustion characteristics involving secondary microatomization decrease NOx and smoke emission, by water gas reaction and heat-sink effect of water for liquid phase cracking in residual fuels, and contribute to maintaining or improving the overall thermal efficiency and to enhancement of the safety.View full abstractDownload PDF (3077K) -
Kiyotaka SAKAI1979 Volume 58 Issue 6 Pages 449-459
Published: June 20, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe submerged combustion-liquid heater has been used in a variety of industrial area owing to its high thermal efficiency. This method has, however, a weak point: the pressure drop of air is so large that the equipment have a large scale and costly powers. The three new types of submerged combution-liquid heater were devised to decrease a large pressure drop of air and to maintain a large thermal efficiency using packed column, sieve tray and two phase flow: packed-column type, sieve tray type and two phase flow type modified combustion-liquid heater. These modified equipments were found to have a1/10-1/100 pressure drop of air compared with the non-modified one.View full abstractDownload PDF (1567K)
- |<
- <
- 1
- >
- >|