Boilers and steam https://www.saimeche.org.za/forums/topics.aspx?group=227175&forum=253300 Thu, 4 Jun 2026 02:54:19 GMT Mon, 5 Apr 2021 17:11:15 GMT Copyright © 2021 SAIMechE Boiler discharging to a common steam main https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608019 https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608019 Hi Mr. Rimbault, 

What are the most important considerations when two or more boilers operate simultaneously and discharge into a common steam main?

Thank you

]]> Mon, 5 Apr 2021 18:09:35 GMT Boiler efficiency range https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608020 https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608020 Hi Mr. Rimbault, 

Boilers are said to be most efficient when operating at 70-80% of their rated maximum output. Why is the boiler most efficient in this range and not across the entire operating range?

Thank you

]]> Mon, 5 Apr 2021 18:11:15 GMT Boiler steam rate "from and at 100 degC" https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608018 https://www.saimeche.org.za/forums/posts.aspx?group=227175&topic=1608018 Hi Mr. Rimbault, 

I am working on a boiler project and I came across the John Thompson Europac boiler brochure (attached to this post) and I noticed that boiler manufacturers tend to rate the boiler steam output "from and at 100 degC".  What does this actually mean, and how does the steaming rate under typical conditions compare with the  "from and at 100 degC" rate?

Thank you

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