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Farm Building and Infrastructure
Renewable Energy
Buffer tank for biomass boiler
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<blockquote data-quote="f0ster" data-source="post: 3895622" data-attributes="member: 66372"><p>with a sealed system you will definitely require an expansion vessel, if you have pressure in the system when hot as soon as it cools a little bit the pressure will be gone causing a vacuum which will suck in air via the auto vents, there no way a diesel tank will withstand 3.5 bar, it will go pop, also a pressurised system is under pressure to raise the boiling point of the water, for each 1lb pressure you raise the boiling point by 1 deg. larger systems often have an automatic pressure set that keeps a min pressure automatically. for a 900kw system you are better off with a large buffer tank and an expansion vessel. it makes your boiler stop/start less often.</p></blockquote><p></p>
[QUOTE="f0ster, post: 3895622, member: 66372"] with a sealed system you will definitely require an expansion vessel, if you have pressure in the system when hot as soon as it cools a little bit the pressure will be gone causing a vacuum which will suck in air via the auto vents, there no way a diesel tank will withstand 3.5 bar, it will go pop, also a pressurised system is under pressure to raise the boiling point of the water, for each 1lb pressure you raise the boiling point by 1 deg. larger systems often have an automatic pressure set that keeps a min pressure automatically. for a 900kw system you are better off with a large buffer tank and an expansion vessel. it makes your boiler stop/start less often. [/QUOTE]
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Buffer tank for biomass boiler
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