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Why is steam kept inside and oil is kept outside in the steam pressure jet burner?
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Engr. Shafiul Bari
Shafiul Bari is a seasoned Marine Engineer with extensive experience in ship design, maintenance, and marine propulsion systems. With a deep technical knowledge of ship engineering and a passion for advancing maritime technology, Shafiul shares practical insights and expert advice to help marine professionals and enthusiasts better understand the complexities of ship systems. Through his website, he aims to bridge the gap between technical theory and real-world application, fostering a community of informed and skilled maritime engineers.
When not immersed in ship engines and technical manuals, Shafiul enjoys exploring the latest innovations in marine technology and mentoring aspiring marine engineers.
View Author Profile →Answer: To keep the oil heated up as well as prevent heat loss from the steam.
Why in the condenser hot medium is outside and in the heater hot medium is inside?
- In the condenser hot medium is outside to assist heat radiation
- In the heater hot medium is kept inside to prevent heat loss
Why nox in the steam atomization burner is low while pressure atomization burner is high?
Answer:
- High oil pressure and high oil temperature in the pressure atomization burner produce high NOx
- But in steam atomization burner, high oil pressure and high oil temperature produce low NOx this is because of the steam which absorb some of the heat produced.
PA = Pressure Atomising (KBO)
RC = Rotary Cup (KB, Aalborg make)
SA = Steam Atomising (KBSA, KBSD, Aalborg make)
How would you relate boiler combustion to MARPOL Annex VI regulations?
Answer:
- The NOx Technical Code applies only to diesel engines and does not apply to boiler combustion
- However, Regulation 14 applies. The sulphur content when in ECA area has to be limited to 0.1% and from 1st January 2020, the global Sulphur limit is 0.5%
- Continuous emission of black smoke is prohibited
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