Removing Sediment/Scale from Piping

Similar to equipment surfaces, scale build-up and sedimenation can be experienced in the piping system giving rise to pressure drop in the system and increasing energy demand.  By applying preventive maintenance approaches, and with the use of appropriate chemical and physical aids, sediments and scale can be removed from the piping system. 

Development Status Products
Commercial

Removing Sediment/Scale from PipingCosts & Benefits

Parent Process: Pump Systems
Energy Savings Potential

This measure is estimated to offer following improvement potentials (UNIDO, 2010):
• 12% for low efficiency base cases;
• 7% for medium efficiency base cases;
• 3% for high efficiency base cases;

Electrical and primary energy savings potential of this technology for diffierent countries is estimated as following (UNIDO, 2010): 

  Final (GWh/y) Primary (TJ/y)
US 3439 37768
Canada 1026 12785
EU 5034 47303
Thailand 406 4082
Vietnam 256 3654
brazil 303 3389
CO2 Emission Reduction Potential

Total emission reduction potential, as kt CO2/y for different countries are estimated as (UNIDO, 2010): 

US 2073
Canada 510
EU 2195
Thailand 210
Vietnam 125
brazil 44

Costs

Estimated typical capital costs of this measure for different system sizes (S) are:
• US $3500  for S < 37 kW;
• US $3500 for 37 kW < S < 75 kW;
• US $7000 for 75 kW < S < 150 kW;
• US $10500 for 150 kW < S < 375 kW;
• US $14000 for 375 kW < S < 745 kW; (UNIDO, 2010)

Cost of conserved energy, expressed as US $/MWh-saved, in different countries are estimated as following (UNIDO, 2010):

US 126.3
Canada 123.2
EU 142.8
Thailand 22.0
Vietnam 11.5
brazil 47.6

Removing Sediment/Scale from Piping Publications

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