ANALIZA RADA VENTILA SIGURNOSTI U USLOVIMA PREGREVANJA U ZATVORENIM SISTEMIMA CENTRALNOG GREJANJA
Ključne reči:
pregrevanje u sistemu centralnog grejanja, isparavanje u sigurnosnom ventilu, porast pritiska
Apstrakt
Cilj rada je analiza sigurnosnih ventila u uslovima pregrevanja, za koje nisu projektovani. Njihov radni temperaturski opseg je do 110 . Pri pregrevanju u sistemu temperatura može porasti preko 110 i sistem može ući u oblast ključanja. U tim uslovima, prilikom ekspanzije do atmosferskog pritiska dolazi do isparavanja u ventilu, koje dovodi do smanjenja masenog fluksa, što je izračunato raspoloživim metodama, koje su detaljno opisane.
Reference
[1] SRPS EN 303-5:2016 - Kotlovi za grejanje na čvrsta goriva, ručno i automatski loženi, nazivne toplotne snage do 500 kW
[2] Darby, R., Meiller, P. R., & Stockton, J. R. (2001). Select the Best Model, (May).
[3] Darby, R., C. (2005). Size Safety–Relief Valves for Any Conditions, Published in Chemical Enginering, 112 , (9), 42–50.
[4] Bolle, L., Downar-Zapolski, P., Franco, J., & Seynhaeve, J. M. (1996). Experimental and theoretical analysis of flashing water flow through a safety value. Journal of Hazardous Materials, 46(2–3), 105–116.
[5] Darby R., & . Raj P.C. (2004). Chemical engineering fluid mechanics, third edition, chapter 11, 291-301.
[6] American Petroluem Institute. (2008). Sizing, Selection and Installation of Pressure Relieving Devices in Refineries, Part I - Sizing and Selection. API Standard 520, (December 2008).
[7] Lees, F. P. (1996). Loss Prevention in the Process Industries: Hazard Identification, Assessment and Control, 1, 3776.
[2] Darby, R., Meiller, P. R., & Stockton, J. R. (2001). Select the Best Model, (May).
[3] Darby, R., C. (2005). Size Safety–Relief Valves for Any Conditions, Published in Chemical Enginering, 112 , (9), 42–50.
[4] Bolle, L., Downar-Zapolski, P., Franco, J., & Seynhaeve, J. M. (1996). Experimental and theoretical analysis of flashing water flow through a safety value. Journal of Hazardous Materials, 46(2–3), 105–116.
[5] Darby R., & . Raj P.C. (2004). Chemical engineering fluid mechanics, third edition, chapter 11, 291-301.
[6] American Petroluem Institute. (2008). Sizing, Selection and Installation of Pressure Relieving Devices in Refineries, Part I - Sizing and Selection. API Standard 520, (December 2008).
[7] Lees, F. P. (1996). Loss Prevention in the Process Industries: Hazard Identification, Assessment and Control, 1, 3776.
Objavljeno
2019-03-06
Sekcija
Mašinsko inženjerstvo
