💧 IGSHPA Hydraulics (20% Propylene Glycol Freeze Protection, Pumping Headloss Ft)

Geothermal Loop Hydraulics Calculator

Size central circulation pumps and calculate Darcy-Weisbach headloss for closed-loop geothermal HDPE piping networks circulating 20% to 25% inhibited propylene glycol antifreeze solutions under IGSHPA: calculate viscosity corrections, verify turbulent flow (Reynolds Number Re > 2,500 in U-tubes for heat transfer), pump brake horsepower (BHP), and piping margins.

1. Project & Operating Inputs

Total Ground Loop Flow (GPM e.g. 450 GPM Central Geothermal Flow)

Antifreeze Glycol Concentration (% e.g. 20.0% Propylene Glycol)

Customer Bid Price for Supplied & Piped Geothermal Header Vault ($)

Duplex VFD In-Line Pumps, Stainless Headers, Glycol Auto Feeder & Tech ($)

2. Financial Breakdown & Yield

IGSHPA GROUND LOOP HYDRAULICS

Turnkey Geothermal Pump Vault Profit

Hydronic Piping Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost