巻号一覧
12 巻 (1998)
- 4 号 p. 325-
- 3 号 p. 209-
- 2 号 p. 117-
- 1 号 p. 14-
前身誌
12 巻, 1 号
選択された号の論文の9件中1～9を表示しています
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気液二相流研究史の私感 (第9報)赤川 浩爾1998 年 12 巻 1 号 p. 14-27
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーThe progress of the two-phase flow reseach has been divided into four stages. These period are 1948-1959, 1960-1970, 1971-1979, and 1980-1990. In this 9th Report, the development of researches on the flow instabilities in boiling channels in the latter half of the second period (1965-1970) has been described. The progress of experimental researches, which were conducted in universities in USA and Japan, on density wave oscillation, pressure drop oscillation, system-induced oscillation, thermal oscillation, flow distribution in parallel channels, and flow excursion, has been described with the historical aspect.抄録全体を表示PDF形式でダウンロード (1767K) -
粉末活性炭吹込法篠田 高明1998 年 12 巻 1 号 p. 28-34
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーIn order to remove polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in exhaust from refuse incineration plants, the treatment of the gases by using a fabric filter with activated carbon injection is available as one of the applicable methods. This method using a fabric filter with activated carbon enabled efficient removal of PCDDs/PCDFs in operating plant. In particular, the concentration of PCDDs/PCDFs was successfully reduced to 0.1ng/Nm3-TEQ.抄録全体を表示PDF形式でダウンロード (695K) -
古山 邦則, 岩永 豊, 清水 志郎1998 年 12 巻 1 号 p. 35-41
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーThe new law regulation for dioxins has been published in Dec. 1997, and it gives a special attention to municipal solid waste incinerators. In order to observe the strict regulation for dioxins, the greater part of existing municipal solid waste incinerators must be carried out some reduction of dioxins. This paper presents the removal systems for dioxins using Activated Coke (AC). These systems are effective for reduction of dioxins at existing municipal solid waste incinerators.抄録全体を表示PDF形式でダウンロード (779K) -
宇治 貞宏, 上島 賢郎1998 年 12 巻 1 号 p. 42-49
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーFor the reduction of PCDDs/DFs emission, catalytic decomposition method is one of the useful high technological waste gas treatment system. In this paper, on the flue gas of MSW incineration plant, study as to decomposition of PCDDs/PCDFs by catalyst is described.抄録全体を表示PDF形式でダウンロード (3773K) -
第2報: 熱交換性能の実証横峯 健彦, 清水 昭比古, 永渕 竜朗, 川端 泰治, 中村 光宏1998 年 12 巻 1 号 p. 50-57
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーA direct mixing type axial flow cyclone heat exchanger between gas and high temperature particles is proposed which serves as particle separator as well and its heat transfer performance was examined both experimentally and numerically. In this heat exchanger, the particles, after being mixed directly with gas, transfer their heat to the gas in the form of quasi-counter-flow and are effectively re-separated by centrifugal force due to swirling motion of the gas. The following results were obtained from the experiments by using the mock-up apparatus: high heat transfer performance was achieved by mounting a particle diffuser just below the particles' feeding nozzle in order to promote the dispersion of particles in the vessel. Furthermore, by investigating the effect of the location of particles' feeding nozzle on the heat transfer performance, the case when the nozzle was flush with the gas inlet was concluded to be most suitable.抄録全体を表示PDF形式でダウンロード (6498K) -
村上 幸一, 野村 信福, 篠塚 正光1998 年 12 巻 1 号 p. 58-66
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーThe purpose of this report is to predict the shape of the droplet on a solid surface through numerical analysis. The shape of the droplet is determined by the equilibrium of the forces of gravity and surface tension. The two-dimensional cylindrical droplet is analyzed numerically by SOLA (solution algorithm)-VOF (volume of fluid) method using the contact angle as the initial condition. The curvature of the droplet surface was calculated from the position of marker particles put on the droplet surface, subsequently, the droplet shape is obtained with high accuracy. The droplet shape on a solid surface predicted by this method is in good agreement with the photograph of the droplet as well as the contact angle. As the inclination angle of solid surface gets larger, both the front side angle and the back side angle of the droplet gradually changed, until finally, the droplet slipped along the slope. The droplet shape could be satisfactorily simulated by use of the SOLA-VOF method.抄録全体を表示PDF形式でダウンロード (1016K) -
村瀬 道雄, 高森 和英, 相原 剛1998 年 12 巻 1 号 p. 67-72
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーIn order to simplify condensation heat transfer calculations for feed water heaters, one dimensional (1D) analyses were compared with three dimensional (3D) analyses. The results showed that average condensation heat transfer coefficients by I D analyses with 1/2 rows of heat transfer tubes agreed with those by 3D analyses within 7%. Using the 1D analysis model, effects of the pitch of heat transfer tubes were evaluated. The results showed that the pitch did not affect much on heat transfer rates and that the size of heat transfer tube bundle could be decreased by a small pitch.抄録全体を表示PDF形式でダウンロード (4041K) -
4. 固液混相流の支配方程式の課題江頭 進治, 宮本 邦明1998 年 12 巻 1 号 p. 73-80
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーこれまで3回にわたって土石流、掃流状集合流動、掃流砂を含む流れについて解説してきた。まず、土石流は典型的な固液混相流のひとつであり、それを単一の連続体で近似する場合の流れの力学的なフレームとその解析法について解説した。さらに、その理論を掃流砂にまで応用し、その結果と従来の掃流砂に関する解析法との比較を行った。両者には確かに類似の関係式を見いだすことができるものの、その基となっている力学的なフレームに関する理解はかなり異なっていることを示した。このことは、流砂現象一般を固液混相流として統一的にとらえることの可能性を示唆するとともに、今後、流砂現象に対して、固液混相流としての支配方程式がどのように構築されるべきかについて十分考察する必要があることを示している。そこで流砂現象がどのような支配方程式に基づいて説明されてきたかを整理概観し、その課題について若干言及してみたい。抄録全体を表示PDF形式でダウンロード (903K) -
賞雅 寛而1998 年 12 巻 1 号 p. 81-84
発行日: 1998/03/15
公開日: 2011/02/22
ジャーナル フリーA film flowing on a wall exhibits as many distinct wave features. The produced interfacial waves show fascinating non-linear phenomena, including solitary waves and complex disordered patterns. Abundant measurements have been made of these phenomena using electrical resistance or electrical-capacity methods, optical methods, and laser beam methods. In this paper, a new way of measurement of the interfacial waves is presented using laser focus displacement meters which allow accurate measurements of film thickness in real time with a sensitivity of 2 microns and 1 kilohertz. With this method, detailed information on the waves was obtained on a film flowing down a vertical wall in an entry region. The measured average film thickness and wave velocity agreed with that calculated using Nusselt's law, indicating the flow to be laminar in the entry region even at a high flow rate. Research on multifluid with progress and improvement in microscopic measuring is expected to be conducted increasingly in the future.抄録全体を表示PDF形式でダウンロード (2141K)
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