About Al Hall Expertise I can answer questions concerning: electric power generation, boilers, turbines, thermodynamic efficiency, heat transfer, fluid dynamics, computer modeling, PEPSE modeling expert
I can not answer questions regarding: electricity, generators, circuit analysis, controls, mechanics of materials, structural design, chemistry, and civil engineering
Experience I have 20 years experience working for electric power generators all over the US, as well as the world. I have taught courses in power plant performance testing, I have written subroutines for the PEPSE software (the Cadillac of the power plant modeling software). I have experience with fluidized bed combustion. I have experience with a variety of projects designing equipment, modifying processes, evaluating equipment life using NDT techniques.
Publications Presented papers at the performance software users group.
Education/Credentials Bachelors and Masters Degrees from the University of North Dakota in Grand Forks, North Dakota.
Question Hi there,
Really hope you can help. We stay in Scotland and have moved into an old stone cottage with solid fuel heating system. The parkray chevin 99 fire has a back boiler system in place. The radiators only seem to get warm at best. On a rare occassion, they have become quite hot but this is a hit or miss and happens for no apparent reason. we always have the fire piping hot, my husband has taken off each radiator and cleaned the suldge, drained the system, put a cleaner through and fitted a new grundfos pump and we are still having problems - any suggestions? It is snowing now and we have 2 babies who always seem to have ice cold hands and noses - we would appreciate any suggestions.
Many Thanks Indeed,
Gaynor
Answer Well, Home heating systems really is not my area of expertise. But from your description, It sounds like you have air trapped in your heating system. You should have a vent valve near the radiators, or somewhere in your system. Try to get all the air blead from the system. Also, check to see that there is sufficient water in the system as well. It was good that you cleaned out the system.
