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AbstractAbstract
[en] Scales is among of the problems in secondary cooling system at Reaktor Serba Guna GA. Siwabessy (RSG-GAS) or pool reactor generally because it can decreased the efficiency of heat transfer in the heat exchanger therefore water flow plugged inside the pipes. There are several factors to form of scales, for instances water quality, water temperature, and flow rate. In this paper are described theoretically the effect of calixarene inhibitor to depress the scale growing in the secondary cooling system of RSG-GAS. Calixarene is organic inhibitor has aromatic chains, hollow structure form and four methoxy group supporting the strong complex to trap the Ca2+ or Mg2+ ion. The chelate complex between Ca2+ or Mg2+ dissolve in water therefore to close the large crystal possibly and to prevent crystal scale binding on the cooling pipes. The goals of study is to observe the calixarene behavior to the scale growing in secondary cooling of RSG-GAS. The method applied to study chemical structure dan calixarene properties, interaction between calixarene with crystal scale forming from Ca2+ and Mg2+ and theoretical calculation of inhibitor equivalent doses to precipitate Ca2+ or Mg2+ scales. Assuming that calixarene organic inhibitor mixed to secondary cooling system which from water resource without pretreatment and then to calculate metal complex dominant (Ca and Mg) equivalent to calixarene in the secondary cooling water. According to theoretical calculation gained that the equivalent doses in 1 m3 water is 1.3614 g per liter. From the assessment result has been identified that the scale problems in the secondary cooling system were understood so that the lowering of heat transfer efficiency in the heat exchanger avoided. (author)
Original Title
Studi Inhibitor Kaliksarena pada Sistem Pendingin Sekunder RSG-GAS
Primary Subject
Source
Kusminarto; Sri Juari Santoso (Gajah Mada University, Yogyakarta (Indonesia)) (eds.); Dwi Wahini Nurhayati (ed.) (Ministry of Industry and Trade, Jakarta (Indonesia)); Agus Taftazani; Sudjatmoko; Darsono; Samin; Syarip; Prajitno; Muhadi Ayub Wasitho; Sukarsono; Tjipto Sujitno; Elisabeth Supriyatni (Centre for Accelerator Technology and Material Process, National Nuclear Energy Agency, Yogyakarta (Indonesia)) (eds.); Centre for Accelerator Technology and Material Process, National Nuclear Energy Agency, Yogyakarta (Indonesia); 176 p; ISSN 0216-3128;
; Jul 2009; p. 122-124; Scientific Meeting and Presentation on Basic Research in Nuclear Science and Technology; Pertemuan dan Presentasi Ilmiah Penelitian Dasar Ilmu Pengetahuan dan Teknologi Nuklir; Yogyakarta (Indonesia); 14 Jul 2009; Also available from Center for Development of Nuclear Informatics, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); 5 refs.; 1 fig.

Record Type
Miscellaneous
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Conference
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ALKALINE EARTH METAL COMPOUNDS, ALKALINE EARTH METALS, ALLOYS, AROMATICS, CALCIUM COMPOUNDS, CARBON ADDITIONS, CARBON COMPOUNDS, CARBONATES, CONDENSED AROMATICS, COOLING SYSTEMS, ELEMENTS, ENERGY SYSTEMS, ENRICHED URANIUM REACTORS, IRON ALLOYS, IRON BASE ALLOYS, IRRADIATION REACTORS, MATERIALS TESTING REACTORS, METALS, ORGANIC COMPOUNDS, OXYGEN COMPOUNDS, POOL TYPE REACTORS, REACTOR COMPONENTS, REACTOR COOLING SYSTEMS, REACTORS, RESEARCH AND TEST REACTORS, RESEARCH REACTORS, STEELS, THERMAL REACTORS, TRANSITION ELEMENT ALLOYS, WATER COOLED REACTORS, WATER MODERATED REACTORS
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