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If the boiler fuel contains Sulphur (and most do) combustion products in the flue gas will include Oxides of Sulphur (SO2 and SO3).

SO3 combines with water (H2O) to make Sulphuric Acid (H2SO4).

If the temperature of the flue gas falls below the dew point, the combination of the acid with the moisture in the flue gas causes corrosion of the flue gas duct work.

Bypassing the economiser in the early stages of a boiler start keeps the flue gas temperature above the dew point.

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You have engineering course completion certificate but i am having arrears but in which type of job can i apply?

Having arrears in your engineering course completion certificate can pose challenges when applying for certain jobs that have strict academic requirements. However, there are still several options you can explore: Entry-Level Positions: Look for entry-level engineering positions that may be more lenient in their academic requirements. Some companies may consider your overall skills, experience, and potential rather than solely focusing on your academic record. Apply for positions that align with your engineering specialization or those that emphasize practical skills and hands-on experience. Small or Medium-Sized Companies: Consider applying to smaller or medium-sized companies that may have more flexibility in their hiring criteria. These organizations might place greater emphasis on practical skills, personal qualities, and cultural fit rather than strict academic performance. Internships or Trainee Programs: Seek out internships or trainee programs that offer opportunities to gain practical experience and develop your skills. These programs often prioritize hands-on learning and may be more willing to overlook academic performance, especially if you can demonstrate your motivation and potential during the application process. Networking and Referrals: Leverage your professional network to seek job opportunities. Networking can help you bypass strict application requirements, as personal connections and recommendations can carry more weight than academic records alone. Reach out to contacts, alumni, and professors who might be aware of openings or can provide recommendations. Skill Development and Certification: Focus on enhancing your practical skills and acquiring relevant certifications in your engineering field. By demonstrating your expertise through certifications or completing additional training programs, you can strengthen your resume and compensate for any shortcomings in your academic record. Entrepreneurship and Freelancing: Consider starting your own engineering consulting business or working as a freelancer. These avenues allow you to showcase your skills and expertise directly to clients who may be more interested in your capabilities and track record than your academic performance. Remember, while having arrears may present initial challenges, it does not necessarily define your entire career. Focus on building your practical skills, gaining relevant experience, and demonstrating your commitment and potential to prospective employers. Persistence, continuous learning, and a proactive approach will increase your chances of finding suitable job opportunities.


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