I have an explanation. The leaked water entering the fire tube could have flowed in two directions - to the smoke box and onto the floor, or "backwards" into the combustion chamber and then overflowed into the furnace and then onto the floor. The water in the combustion chamber would have...
No recorded pressure, but the steam is saturated so the pressure can be calculated from the temperature.
I made a rough mathematical model of the boiler by measuring everything inside the boiler and recording their vertical positions. In a spreadsheet I can input a water level and determine...
It is a horizontal cylinder 3m long and 2.5m diam with the top 3/4 covered with insulating material. Inside the boiler there are 2 furnaces, 2 combustion chambers and 5 rows of fire tubes.
In that hour a little heat would have been coming from the remains of the fire and some would have been...
It is a heritage coal-fired fire-tube boiler and was being warm up overnight when one of the tubes developed a leak. The fire was virtually out when the leak occurred -- the warming curve had flattened out with the small fire compensating for the heat loss through the boiler's insulation.
There...
Thanks for your response.
My measurement was by thermocouple on the outside of the boiler under the insulation, at the level of the normal later level. So it wasn't the exact water temperature and has a bit of time delay, but it works well enough.
Yes I also thought about the energy required...
Thanks very much Chestermiller.
By the way could you see "attachment 123054" that was part of my question? It should be the steam table I was using, but when I click on the link now I get an error -- strange. It would be convenient if we used the same steam table -...
Homework Statement
I want a detailed understanding of the temperature drop of a boiler when water is lost from a leak. I have a temperature recording of a leak that lasted for an hour and caused the temperature to drop from 170oC to 150oC when 2.55m3 of water was lost. I have tried using steam...
Hi, I am ThermoPat. I am an engineering graduate and have always been interested in physics - it is such fun! I have read some interesting articles in this forum and hope to have some questions of my own answered.
Thanks.