Search Results:　 1-20 of 100

1

Recycling of Wastewater for Surface Finishing by Double-Pass RO System and UV–Ozone Oxidation Process

Wada Hiromutsu , Shimizu Ken , Kuroda Yasuhiro , Ishikawa Eiichi , Arakawa Tetsuya , Arakawa Tohru

表面処理排水の再利用を目的に凝集ろ過後，減圧蒸留した水をUF膜ろ過と2段RO膜処理により脱イオン処理してUVオゾン酸化した．減圧蒸留では重金属イオンと塩分が分離できたが蒸留水にはCOD成分が200 mg dm−3残った．蒸留水はUF膜ろ過と低圧RO膜処理によりCOD 40 mg dm−3，電気伝導率70 μS cm−1まで改善されたが蒸留装置の冷却水として再利用するには不十分な水質であった．低圧R …

KAGAKU KOGAKU RONBUNSHU 37(6), 563-569, 2011

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2

1801 Numerical investigation of a nanofluid-micro-channel heat exchanger for geothermal applications

Tanimizu Katsuyoshi

… Cooling is necessary to many industrial process, such as power generation units; … Cooling towers used to be more the exception than the rule in the industry because of their high operating cost and the large capital required for their construction. … Due to the recent stringent environmental protections, cooling towers became more common. … Heat exchanger is main factor to improve the thermal performance of the cooling tower. …

Fluids engineering conference ... 2010, 509-510, 2010-10-29

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3

S0401-3-2 Microbiologically Influence Corrosion Property of Surface Modified Steels [in Japanese]

KAMAKURA Nagisa , KURODA Daisuke , KANEMATSU Hideyuki , IKIGAI Hajime , SOGAWA Akiko

… And most of bacteria in oligotrophic environments (many water systems and marine environment) live in biofilms. … All of the specimens with the folder were immersed in a cooling water tank in a cooling tower. … Cooling water is fresh water. …

年次大会講演論文集 : JSME annual meeting 2010(1), 319-320, 2010-09-04

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4

403 Study on Outside Air Economizer Systems for Data Centers [in Japanese]

UDAGAWA Yosuke , YANAGI Masahide , WARAGAI Shisei

… The estimation results have shown that the water-side economizer requires doubling the capacity of the cooling tower and consideration of the installation space and cost, while the air-side economizer increases the humidifying power, which requires the relaxation of indoor humidity specifications. …

Symposium on Environmental Engineering 2010(20), 223-225, 2010-06-26

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5

Analysis of Dehumidification Effects on Cooling Capacity of an Evaporative Cooler

SAIDI Mohammad Hassan , AGHANAJAFI Cyrus , MOHAMMADIAN Masoud

… In this study, effect of desiccant wheel, heat exchanger and cooling coil will be evaluated on decreasing the wet bulb temperature of entering air to cooling tower and decreasing the outlet cold water temperature. …

Journal of Thermal Science and Technology 5(1), 151-164, 2010

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6

Water Treatment of Cooling Water [in Japanese]

KUZUMAKI Teiji

冷凍 84(982), 717-719, 2009-08-15

References (1)
7

Development of Prediction Method for a Visible Plume from a Mechanical Draft-Cooling Tower : 2nd Report, Numerical Simulation to Predict a Visible Plume(Fluids Engineering) [in Japanese]

MICHIOKA Takenobu , SATO Ayumu , SADA Koichi

… A Large-eddy simulation (LES) was developed to predict a visible plume region from a mechanical-draft cooling tower. … This numerical model solves the equations for conservation of mass, momentum, energy, vapor and liquid water. … It is assumed that the visible plume is generated whenever the instantaneous liquid water mixing ratio is existed. …

Transactions of the Japan Society of Mechanical Engineers. B 75(752), 604-611, 2009-04-25

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8

Study about Operating Method of Latest Variable-Speed Centrifugal Chillers in Heat Source System for Business Use : Part2-Energy Consumption Evaluation of Heat Source System by Using Urban Unutilized Heat Source [in Japanese]

TOGANO Yoshie , UEDA Kenji , YAMAGUCHI Yohei , SHIMODA Yoshiyuki

最新のインバータターボ冷凍機では,回転数制御により部分負荷時の機械損失が大幅に低減され,成績係数は熱力学特性に大きく依存するため広い冷却水温度域に高い成績係数で追従することができる.本研究では民生業務用途に対し,最新インバータ機で冷却源を未利用熱源とした場合のエネルギー消費量を算定し,従来機と冷却塔を組み合わせた方式と比較することで,インバータ機の特性が未利用熱源の利用によるエネルギー消費量削減効 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (144), 43-51, 2009-03-05

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9

Development of Prediction Method for a Visible Plume from a Mechanical Draft-Cooling Tower : 1st Report, Wind Tunnel Experiments to Predict a Visible Plume(Fluids Engineering) [in Japanese]

MICHIOKA Takenobu , SATO Ayumu , SADA Koichi

… We developed a method for a wind tunnel experiment to predict a visible plume region from a mechanical-draft cooling tower. … The diffusions of water vapor and temperature emitted from the cooling tower in the wind tunnel experiment are tracked using tracer gas. …

Transactions of the Japan Society of Mechanical Engineers. B 75(749), 93-100, 2009-01-25

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10

Survey on Laws or Legislations, Regulation of Local Government and Public Administrative Direction or Guidance before the Large-scale Outbreak of Legionnaires' Disease at Public Bathhouse [in Japanese]

AKAI Hitoshi , TOCHIHARA Yutaka

2000年(平成12年)、循環式浴槽を感染源とするレジオネラ症集団感染事故が、静岡県と茨城県で発生した。この集団感染以前にも我が国では浴槽水を感染源とする散発的なレジオネラ症感染や冷却塔を原因とするレジオネラ症集団感染があった。また浴槽水の調査でも、レジオネラ属菌が分離される比率が高いこともわかっていた。1996年(平成8年)3月、(社)空気調和・衛生工学会給排水衛生設備委員会資料調査小委員会は、 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (142), 47-56, 2009-01-05

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11

Energy Conservation Effect of Cooling Tower Fan Control for Absorption Water Chiller-Heater [in Japanese]

FUJITA Toshihiko , KOJIMA Mitsuo , FUNATANI Akio , MATSUBARA Tametoshi

ガス吸収冷温水機と冷却塔からなる空調用熱源システムについて,冷却塔ファンのオンオフ制御による省エネルギー効果を調べるために,527kW(150USRt),1055kW(300USRt)クラスの最近の二重効用ガス吸収冷温水機の性能特性とこれらの吸収冷温水機用の冷却塔の性能特性を調べ,この熱源システムを大阪の事務所ビル(10000m^2)などの冷房に適用したときのエネルギー消費量をシミュレーション計算 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (142), 9-17, 2009-01-05

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12

What's up with cooling towers [in Japanese]

Morrison Frank T. , 黒田尚紀 [訳]

空気調和・衛生工学 83(3), 231-236, 2009-03
13

SURVEY STUDY ON ENERGY CONSUMPTION IN COMMERCIAL BUILDING OF SHANGHAI(Environmental Engineering) [in Japanese]

XUAN Ji , GAO Weijun , WEI Xindong , TSUTSUMI Hiroki

… The purpose of this paper is to examine the actual conditions of energy consumptions in Jin Mao Tower (JM), a commercial building in the centre of Shanghai. … On contrast, heating, cooling and hot water consumptions are almost as same as the relative data. …

Journal of architecture and building science 14(28), 517-520, 2008-10-20

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14

Reduction in Dioxin Emissions by the Addition of Urea as Aqueous Solution to High-temperature Combustion Gas

KASAI Eiki , KUZUHARA Shunsuke , GOTO Hiroshi , MURAKAMI Taichi

… Considering these results, the method of urea addition to the water splayed into the cooling tower of waste gas is proposed as an effective measure to suppress the dioxin formation at the cooling stage of the combustion gases. … When the concentration of urea in the splayed water is set to 0.1%, the toxicity concentration of the dioxins in the waste gas is reduced to approximately half that in the case without the addition. …

ISIJ International 48(9), 1305-1310, 2008-09-15

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15

Sub-cooling System with Multiple Packaged Air Conditioning Units for Buildings [in Japanese]

ISHII Shuichi , KAWAKAMI Yoshiaki , TANINO Masayuki

我々は2005年に,空冷ビル用マルチに外部の冷熱源を取り入れて,大幅な省エネを達成する「ビル用マルチ冷媒サブクールシステム」を開発した.環境試験室や実際の建物における実機試験によって,当システムの省エネ効果を厳密に検証してきた.その結果,例えば東京の10,000m^2規模の事務所ビルに当システムを導入しか場合,年間冷房消費電力量を12%削減可能であるといった確度の高い推定を可能にした.本報では,当 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (136), 35-42, 2008-07-05

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16

A study about uses of high efficiency centrifugal chillers in heat source system for business use : Performance characteristic evaluation of inverter centrifugal chillers [in Japanese]

UEDA Kenji , HASEGAWA Yasushi , SHIMODA Yoshiyuki

高性能化の技術的手法の一つであるインバータターボ冷凍機は,遠心式圧縮機の特性に着目し低温側の冷水と高温側の冷却水の広い温度域に高い成績係数で追従することが可能である.この特性は民生業務用空調熱源システムの大幅な省エネルギーの可能性を示唆しており新たな設計手法や運転法の提とする.まず本報ではその入力となるインバータターボ冷凍機の性能特性について熱力学的理論サイクル性能と比較をおこない不確かさと共に明 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (136), 17-25, 2008-07-05

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17

Distinct difference of flaA genotypes of Legionella pneumophila between isolates from bath water and cooling tower water

AMEMURA MAEKAWA Junko , KURA Fumiaki , CHANG Bin , SUZUKI HASHIMOTO Atsuko , ICHINOSE Masayuki , ENDO Takuro , WATANABE Haruo

Microbiology and immunology 52(6), 460-464, 2008-06-20

References (7) Cited by (3)
18

The Characteristics of Waste Heat and Energy Efficient of Air Conditioning Outdoor units : Part 1 The Influence Evaluation about Outdoor Environment by Measurement [in Japanese]

KUBO Ryutaro , ISHIHARA Osamu

空調排熱の影響による気温高温化の原因を把握するために、空冷式屋外機及び水冷式屋外機の排熱特性の違いを明らかにし、気温上昇に寄与する顕熱排熱の特性について検討を行った。また、顕熱排熱を主体とする空冷式屋外機の稼働状況が空調機のCOPに及ぼす影響について検討した。本報告では、夏季及び冬季において、単一の屋外機に関する現場実測を行うことにより、空調用屋外機の屋外環境評価及びエネルギー効率について検討を行 …

Transactions of the Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (133), 19-26, 2008-04-05

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19

STUDY ON THE EXPERIMENT AND CALCULATION METHOD OF FREE COOLING SYSTEM WITH EVAPORATIVE COOLING TOWER [in Japanese]

YAN Ying Lin , KARINO Naoki , MIZUNO Keizou , KAWADU Yukihiro , YOKOO Noriyoshi , OKA Tatsuo

… Free cooling system is an energy saving system without chiller operation when the ambient temperature is relatively low and building needs the chilled water for cooling. … The prediction method for free cooling performance is described in this paper with the theoretical formulae. …

Journal of environmental engineering 73(625), 343-347, 2008-03-30

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20

Large-scale Compound Facilities that are Adjacent to Station JR Tower : Sapporo Station South Entrance Synthesis Development Building [in Japanese]

WAKASUGI Hirotake , SIMADA Yasuhira , ITOU Akitaka , WAKASUGI Norihito

空気調和・衛生工学 82(3), 233-243, 2008-03-05

References (1)

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