Service Contract No 2007 / 147-446 - Swaziland

More documents

Recommendations

Info

8 R E C O M M E N D A T I O N STo evaluate the constraints of the project properly we have decided to divide therecommendations into four categories namelyA. Immediately: This must be done directly after harvesting.B. Short term: This must be done this seasonC. Medium term: This must be done before replantD. Long term: This must be rectified with replant.Pump StationsImmediately:‣ Get all river running to full capacity i.e. installing a bigger impellor on phase two boosterpumps E 50 000.00‣ Repair all faulty equipment. E 20 000.00‣ Install safety mechanisms on all pumping units E 25 000.00‣ Establish arrangement with a reliable contractor to assist with the maintenance of allequipment.Short term:‣ Do routine maintenance on pumps and all equipment. E 20 000.00‣ Reduce suction flow velocities by increasing the size of the suction manifold. E 10 000.00‣ Replace all incorrectly dimensioned fittings (bends and reducers) on the suction anddelivery manifold with the correct size E 10 000.00‣ Refurbish pump houses i.e. finishing all civil works, improving floor drainage, etcE 50 000.00‣ Replace all phase one pump with new generation highly efficient pumps E 80 000.00‣ Install flow meters in all pump stations E 80 000.00Medium term:‣ Construct a proper intake structure (sump) at phase one river pump station andrehabilitate phase two sump and dam off-take to the booster pump station E 350 000.00‣ Seal all leaks in balancing dam E 150 000.00Maphobeni Farmers Association Report - 2009 Page - 57 -
Long term:‣ Replace all high speed pumps with low speeds E 75 000.00MAIN LINEImmediately:‣ Do routine maintenance on all equipment. E 2 500.00‣ Implement soil and water conservation measures to stop/ minimise soil erosion E 10000.00‣ Fix all leaking air valves, installed additional air valves, attend to leaks on mainline, etcMedium term:‣ Confirm pipe sizes, pipe classes, lengths and orientation of the mainline. Redesign andreinstalled all mainlines that do not conform to norms E 100 000.00‣ Install additional air valves E 7 500.00SPRINKLER INFIELD IRRIGATIONImmediately:‣ Fix all damaged sprinkler stands and replace leaking draglines and other malfunctioningequipment E 10 000.00‣ Equip all sprinklers with pressure regulators. E 60 000.00‣ Replace all worn out sprinkler nozzles E 5 500.00Short term:‣ Replace all mechanical chokes and install pressure regulating pilots in hydraulic valvesE 50 000.00‣ Redesign and install at least 54m spaced hydraulically controlled laterals with 20 meterslong draglines in phase one. E 450 000.00Long term:‣ Replant all blocks that perform badly E 80 000.00‣ Install sub-surface and/or surface drain in bad soils E150 000.00Maphobeni Farmers Association Report - 2009 Page - 58 -
Page 1 and 2:
Restructuring and DiversificationMa
Page 3 and 4:
DISCLAIMERThe contents of this repo
Page 5 and 6:
5.2 Delivery tests ................
Page 8 and 9:
LIST OF APPENDICESAppendix 1: SEB u
Page 10 and 11:
1 I N T R O D U C T I O NAssociatio
Page 12 and 13:
pumps. 2 x Howden 100-400 in the ri
Page 14 and 15:
3.1.2 R e v i e w o f C o n t a c t
Page 16 and 17: 9 SCHEDULE OF BLOCKS THAT IRRIGATE
Page 18 and 19: Maphobeni Farmers Association Repor
Page 24 and 25: Based on equation 1 above the flow
Page 26 and 27: ReducersThe inlet on the pump sucti
Page 28 and 29: d1.5d0.5dd3d 3d 1.5dFigure 9. Spaci
Page 30 and 31: hf6375kQ4d2……………………
Page 32 and 33: Table 1. Pump and motor specificati
Page 34 and 35: Table 2. Irrigation pumps evaluatio
Page 36 and 37: Phase two river pump station‣ Pum
Page 38 and 39: Filters: 3%Capital Recovery Rate (C
Page 40 and 41: 4.3.1 M a i n l i n e s i z eThe So
Page 42 and 43: 5 F I E L D E V A L U A T I O N O F
Page 44 and 45: 5.1.2 S p r i n k l e r p r e s s u
Page 46 and 47: 0 L/4 L/2 3L/4 LL3L/4LL/2Test block
Page 48 and 49: Phase two booster Pumps running und
Page 50 and 51: The installation of this unit (on t
Page 52 and 53: Old AgePhase one of the irrigation
Page 54 and 55: The effects of different nozzles/em
Page 56 and 57: Interest RatesIt can be argued that
Page 58 and 59: 6 . 2 M a n a g e m e n t P r a c t
Page 60 and 61: 6 . 3 M a i n t e n a n c e S u r v
Page 62 and 63: 7 C O N S T R A I N T S T O E F F I
Page 64 and 65: phase one and two was found to be 1
Page 68 and 69: OVERALL MANAGEMENT AND MAINTENANCEM
Page 70 and 71: 10 L I T E R A T U R E R E F E R E
Page 72 and 73: 11 P R O D U C T I N F O R M A T I
Page 86 and 87: SEB usage for River pump station Ph
Page 88: Appendix 2: capital recovery factor
show all

Service Contract No 2007 / 147-446 - Swaziland

Create successful ePaper yourself

Delete template?

Save as template?