What is total dynamic head?
Total dynamic head is the total resistance the pump must overcome, expressed in metres: static elevation difference plus required operating pressure converted to head, plus friction losses in pipes, valves and fittings, plus losses across filters and fertigation equipment. It is calculated at the design flow, because losses rise with flow.
Where this sits in greenhouse irrigation system procurement
A greenhouse irrigation system is specified from crop water demand, growing system, water source quality and block layout — those four inputs decide pump duty, filtration, mainline sizing and emitter choice before any supplier is approached.
Typical procurement searches this answers: greenhouse irrigation system · greenhouse drip irrigation design · irrigation system for hydroponic greenhouse · greenhouse water requirement per hectare · fertigation equipment · fertigation system for greenhouse
Inputs that change the answer
- Elevation difference
- Operating pressure (bar → m)
- Pipe friction at design flow
- Filter and fertigation losses
What this answer does not settle
Loss figures must come from the actual pipe layout and equipment data sheets.
Cite this answer
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- Publisher:
- SeedMatchGroup
- Implied RFQ track:
- Irrigation package
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More in Pumps, pressure and filtration
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