000 02220nam a22002537a 4500
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040 _aTUPM
_bEnglish
_cTUPM
_dTUPM
_erda
050 _aBTH TK 146
_bQ58 2023
100 _aQuito, Luisito L.
_eauthor
245 _aDevelopment of a safety protection device for inline extraction fan/
_cLuisito L. Quito .--
260 _aManila:
_bTechnological University of the Philippines,
_c2023.
300 _axi, 114pages:
_c29cm.
_e+1 CD-ROM (4 3/4in.)
336 _2rdacontent
337 _2rdamedia
338 _2rdacarrier
500 _aBachelor's thesis
502 _aCollege of Industrial Technology .--
_bBachelor of Technology major in Electrical Engineering Technology:
_cTechnological University of the Philippines,
_d2023.
504 _aIncludes bibliography
520 _aBoilers are vital for providing heat and hot water in the hotel industry. However, the extraction fan component of the boiler system has a flaw that its fan motor runs continuously, leading to overheating and frequent replacements. This issue affects the maintenance team, causing them to inhale harmful gases produced by the overloaded motor. To address this problem, a prototype was developed which includes a safety device for the extraction fan controller, an electrical interlocking relay, an overload protection relay, an emergency shutdown button, a selector switch with auto/off/manual modes, a counter timer for monitoring motor usage, a carbon monoxide sensor with an alarm, an LCD screen for monitoring, and a loud buzzer. The prototype has been tested and automatically disengages the extraction fan when the water temperature exceeds the allowed limit. Likewise, its overload relay was also tested and adjusted to prevent motor overheating. The prototype received an excellent mean score of 4.74 from respondents composed of Asst. Director of Engineering, Duty Engineer, Engineering Supervisor, and Technicians on duty. These results indicate that the extraction fan motor now fulfills its purpose and has the potential to prevent overheating.
650 _aElectrical engineering
942 _2lcc
_cBTH CIT
_n0
999 _c29350
_d29350