Load & Sizing ✓ ISO/ASHRAE Thermodynamic Math • Calibrated for 42°C Tropical Ambient

Chilled Water Pipe Friction Loss & Pump Head Solver

Name: Prime Cool Mechanical & Sustainable Climate Systems
Address: Shikrapur, Pune, Maharashtra, Shikrapur, Pune, Maharashtra, 412208, IN
Telephone: +917507408461
Price range: ₹₹
Rating: 4.9

Calculate friction head loss (ft w.g.), water velocity (ft/s), total system dynamic head, and pump hydraulic horsepower for chilled water loops.

⚡ Live Interactive Computation Engine ✓ Real-Time Field Calibrated

Chilled Water Flow (GPM): Roughly 2.4 GPM per TR of chiller load

Nominal Pipe Diameter:

Pipe Material (Hazen-Williams C):

Total Pipe Loop Length (Feet):

Valves, Strainer & Fitting Allowance (%):

Hydronic Dynamic Head Loss & Pump Power

18.2 ft w.g. (7.88 PSI)

Water Velocity: 7.25 ft/s (2.21 m/s)

Friction Rate: 5.4 ft / 100ft Hydraulic Power: 0.74 WHP Motor Shaft Power: 1.10 kW (1.5 HP)

ASHRAE 90.1: Maintain velocity under 7 ft/s for pipes ≤2" and under 10 ft/s for pipes ≥3" to avoid erosion.

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Technical Engineering Guide & Field Diagnostic Practices

Optimal hydronic piping design balances initial capital expenditure with lifelong pumping electrical consumption. Sizing pipes too small creates excessive velocity (>8 ft/s), accelerating pipe erosion, cavitation, and water hammer; sizing pipes too large increases valve and fitting costs. This tool applies the Hazen-Williams equation to compute hydraulic friction gradients, total dynamic head, and pump motor shaft power requirements.

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