Template Hose Reel Calculation

PROJECT : ??? HOSE REEL SYSTEM (???) HYDRAULIC CALCULATION PERTAINING TO PUMP SIZING FOR HOSE REEL SYSTEM *Pump performance shall be based on not more than 80% efficiency factor. Items (i) Hose reel pump selection (ii) Total number of hose reel (iii) Total pipe length from HR pump to furthest HR location (iv) Total pipe length of highest vertical riser piping (v) Total number of 90° bends (0.05 m diameter) (vi) Total number gate valve (0.05 m diameter) (vii) Hose Reel (0.025 m diameter & 30 m length) Type of tubing: Non Kink Single Braided Friction Loss (Hazen Williams Formula) (i) Pipe length (ii) Volumetric flow rate (iii) Pipe roughness coefficient, C (iv) Pipe diameter HEAD LOSS PER PIPE LENGTH HEAD LOSS PER 1 METER PIPE LENGTH Head Loss (i) Linear length of pipe

Value 135 0.00225 88 200 60 17 3

Value Unit 100 meter 0.00225 meter3/s 120 0.05 meter 4.161337 meter head 0.041613 meter head

Value 200 Head Loss 8.322673 (ii) Number of Bends 17 Equivalent length of smooth 90° bends (0.05 m diameter) 0.5 Total equivalent length of smooth 90° bends (0.05 m diameter) 8.5 Head Loss 0.353714 (iii) Number of valves 3 Equivalent length of gate valve (0.05 m diameter) 0.5 Total equivalent length of gate valve (0.05 m diameter) 1.5 Head Loss 0.06242 (iv) Canvas Tubing Length 30 Diameter 0.025 Head Loss 1.5 (v) Vertical riser piping Head Loss 60 (vi) Hose reel outlet Head Loss 25 TOTAL HEAD REQUIRED SELECTED PUMP PERFORMANCE (METER HEAD) SELECTED PUMP PERFORMANCE (FEET HEAD)

Unit Litre/min meter3/s Nos. meter meter Nos. Nos.

unit meter meter head Nos. meter meter meter head Nos. meter meter meter head meter meter meter head meter head meter head

95.23881 meter head 100 meter head 328 feet head

Hazen Williams Friction Loss Formula (SI Unit)

L Q C d hf S

= = = = = =

Length of pipe in meters Volumetric flow rate, m3/s (cubic meter per second) Pipe roughness coefficient Inside pipe diameter, m (meter) Head loss in meters (water) over the length of pipe (meter head) Hydraulic slope

pe (meter head)