Author: Chiu, Y.F.
Paper Title Page
WEPAB371 Numerical Analysis on Nitrogen Injection Fire Extinguishing System in the LINAC Area at TPS 3578
 
  • J.-C. Chang, W.S. Chan, Y.F. Chiu
    NSRRC, Hsinchu, Taiwan
  
  The Lin­ear ac­cel­er­a­tor (LINAC) of Tai­wan Pho­ton Source (TPS) could gen­er­ate elec­trons to 150 MeV. The main sub­sys­tems in­clud­ing an elec­tron gun, buncher, ac­cel­er­at­ing sec­tions, vac­uum sys­tem, and fo­cus­ing and steer­ing mag­nets are lo­cated in the LINAC area of 223.5 m2 and 3 m in height. We de­signed a ni­tro­gen in­jec­tion fire ex­tin­guish­ing sys­tem for the LINAC area and per­formed Com­pu­ta­tional Fluid Dy­namic (CFD) sim­u­la­tion to analyse the fire ex­tin­guish­ing per­for­mance with and with­out fresh air sup­plied from the air con­di­tion­ing sys­tem.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB371  
About • paper received ※ 16 May 2021       paper accepted ※ 21 June 2021       issue date ※ 20 August 2021  
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WEPAB372 Design and Construction of Uninterruptible Paralleling Transfer Switches for an Emergency Power System in Taiwan Light Source 3581
 
  • Y.F. Chiu, W.S. Chan, K.C. Kuo, Y.-C. Lin
    NSRRC, Hsinchu, Taiwan
  
  The ATS of an emer­gency power sys­tem in Util­ity Build­ing II has op­er­ated over 18 years; in re­cent years the fail­ure rate is grad­u­ally in­creas­ing be­cause of aged com­po­nents. To im­prove old switches, schemes of up­grad­ing and de­vel­op­ing new and ef­fi­cient trans­fer switches have been con­ducted cau­tiously. A new de­vice named an Un­in­ter­rupt­ible Par­al­lel­ing Trans­fer Switch (UPTS) is de­signed and im­ple­mented to re­place an ex­ist­ing ATS to en­hance the per­for­mance to meet the re­quire­ments of un­in­ter­rupted power trans­fer. The UPTS can un­in­ter­rupt­edly switch the grid power to emer­gency power of a backup gen­er­a­tor dur­ing a planned util­ity power out­age, and also ex­actly switch emer­gency power to the grid power un­in­ter­rupt­edly when the util­ity power is re­stored. If grid power is un­ex­pect­edly lost, UPTS acts like a typ­i­cal ATS, au­to­mat­i­cally trans­fer­ring power from a pri­mary source to a backup source with switch­ing du­ra­tion a few sec­onds. A prac­ti­cal UPTS has been as­sem­bled and in­stalled in Util­ity Build­ing II and has per­formed well ef­fec­tively to elim­i­nate power-switch­ing tran­sients.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB372  
About • paper received ※ 11 May 2021       paper accepted ※ 02 July 2021       issue date ※ 12 August 2021  
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WEPAB373 The Energy Management System in NSRRC 3585
 
  • C.S. Chen, W.S. Chan, Y.Y. Cheng, Y.F. Chiu, Y.-C. Chung, K.C. Kuo, M.T. Lee, Y.C. Lin, C.Y. Liu, Z.-D. Tsai
    NSRRC, Hsinchu, Taiwan
  
  Tai­wan has been suf­fer­ing from a short­age of nat­ural re­sources for more than two decades. As stated by the En­ergy Sta­tis­tics Hand­book 2019 of Tai­wan, up to 97.90% of en­ergy sup­ply was im­ported from abroad. This kind of en­ergy con­sump­tion struc­ture is frag­ile rel­a­tively. Not men­tion to the total do­mes­tic en­ergy con­sump­tion an­nual growth rate is 1.97% in twenty years. Ei­ther the semi­con­duc­tor or the in­te­grated cir­cuit-re­lated in­dus­try is de­vel­oped vig­or­ously in Tai­wan. All the facts cause us to face the en­ergy prob­lems squarely. There­fore, an en­ergy man­age­ment sys­tem (EnMS) was in­stalled in NSRRC in 2019 to pur­sue more ef­fi­cient en­ergy use. With the ad­van­tages of the Archive Viewer - a util­ity su­per­vi­sory con­trol and data ac­qui­si­tion sys­tem in NSRRC, the data of en­ergy use could be traced con­ve­niently and widely. The model of en­ergy use has been built to re­view pe­ri­od­i­cally, fur­ther­more, it pro­vides us the ac­cor­dance to re­place the de­graded equip­ment and alerts us if the fail­ure oc­curs.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB373  
About • paper received ※ 21 May 2021       paper accepted ※ 22 July 2021       issue date ※ 11 August 2021  
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