Energy Efficiency Potential
Food & Beverage Sector
In Nepal
Food & Beverage Sector
Sub-sectors
 Beverage
 Biscuit
 Dairy
 Noodle
 Sugar
 Vegetable oil & Ghee
Beverage Sub-sector
Observations
 Beverage industries consume both electrical and
thermal energy
 Boilers are used for generation of steam a...
Saving Potentials - Beverage
From ESPS studies, the potentials are 9.09% for
Electrical and 19.25% for thermal energy.
The...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old and rewinded motors by energy efficient
mot...
Biscuit Sub-sector
Observations
 Biscuit industries consume both electrical and
thermal energy
 Thermal energy required for baking process ...
Saving Potentials
Biscuit
ESPS studies - saving potential for electrical energy is
29.47% and thermal energy is 15.38%
The...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old and rewinded motors by energy
efficient mot...
Dairy Sub-sector
Observations
 Dairies use both electrical and thermal energy
 Boilers are installed to get steam for different
processes...
Saving Potentials - Dairy
From ESPS studies, the potentials were 6.31% for
Electrical and 13.91% for thermal energy
The el...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old and re-winded motors by energy efficient mo...
Instant Noodle Sub-sector
Observations
 Instant Noodle industries consume both electrical
and thermal energy
 Boilers are installed to get steam f...
Saving Potentials - Noodle
ESPS studies have shown that the saving potential for
electrical energy is 6.15% and thermal en...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old and rewinded motors by energy
efficient mot...
Sugar Sub-sector
Observations
 Sugar mills need both electrical and thermal energy
 Installed with steam turbines to generate power for i...
Saving Potentials - Sugar
SEC is not useful due to lower consumption in the
country as the mills do not account for use of...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old and re-winded motors by
energy efficient mo...
Vegetable Oil & Ghee Sub-sector
Observations
 Vegetable oil refinery industries consume both
electrical and thermal energy
 Boilers are installed to get...
Saving Potentials Vegetable Oil & Ghee
n=16, Qs = 122,034 MT, Eo = 200 MJ/MT or 55.55
kWh/MT, To = 2700 MJ/MT
Σ(Ex-Eo) = 2...
Saving Potentials
Vegetable Oil & Ghee
From ESPS studies, the potentials are 5.49% for
Electrical and 11.07% for thermal e...
Areas of Potential Savings
 Improvement in motor loading
 Replacement of old / re-winded motors by energy efficient moto...
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Energy Efficiency Potential in Food & Beverage Industries in Nepal

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This presentation provides detailed information about energy saving opportunties in food and beverage sector in Nepal. The status of various subsectors is shown and major energy saving opportunties are explained. The findings are based on a GIZ baseline study conducted in 200 industries in 2012.

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Energy Efficiency Potential in Food & Beverage Industries in Nepal

  1. 1. Energy Efficiency Potential Food & Beverage Sector In Nepal
  2. 2. Food & Beverage Sector Sub-sectors  Beverage  Biscuit  Dairy  Noodle  Sugar  Vegetable oil & Ghee
  3. 3. Beverage Sub-sector
  4. 4. Observations  Beverage industries consume both electrical and thermal energy  Boilers are used for generation of steam and in most of cases boiler fuel is diesel  Use of re-winded motors  Steam leakages are observed  Insulation not satisfactory
  5. 5. Saving Potentials - Beverage From ESPS studies, the potentials are 9.09% for Electrical and 19.25% for thermal energy. The electrical saving potential = 0.0909 * 15300379 = 1,390,804 kWh = 1,390.804 MWh The thermal saving potential = 0.1925 * 55,623,829 MJ = 10,707,587 MJ = 10,707.587 GJ
  6. 6. Areas of Potential Savings  Improvement in motor loading  Replacement of old and rewinded motors by energy efficient motors  Minimization of energy losses by partition of cooling areas, installation and effective use of air curtains  Regular cleaning and maintenance of condenser pipes  Improvement in the efficiency of capacitor banks  Improvement in combustion efficiency in boilers  Minimization of heat losses from the boiler  Minimization of steam leakages  Insulation of steam pipes, valves and flanges  Improvement in steam supply system  Condensate recovery  Waste heat recovery
  7. 7. Biscuit Sub-sector
  8. 8. Observations  Biscuit industries consume both electrical and thermal energy  Thermal energy required for baking process and source of thermal energy is diesel  Use of re-winded motors  Insulation of oven not satisfactory  Waste heat not recovered
  9. 9. Saving Potentials Biscuit ESPS studies - saving potential for electrical energy is 29.47% and thermal energy is 15.38% The electrical saving potential = 0.2947 * 3571208 = 1,052,435 kWh = 1,052.435 MWh The thermal saving potential = 0.1538 * 56584558 MJ = 8,702,705 MJ = 8,702.705 GJ
  10. 10. Areas of Potential Savings  Improvement in motor loading  Replacement of old and rewinded motors by energy efficient motors  Improvement in combustion efficiency in furnace  Insulation of oven to minimize heat losses  Waste heat recovery
  11. 11. Dairy Sub-sector
  12. 12. Observations  Dairies use both electrical and thermal energy  Boilers are installed to get steam for different processes and in most of the cases boiler fuel is diesel  Use of re-winded motors  Steam leakages  Insulation of steam distribution system not satisfactory  Improper steam distribution lines  Improper insulation of cold lines
  13. 13. Saving Potentials - Dairy From ESPS studies, the potentials were 6.31% for Electrical and 13.91% for thermal energy The electrical saving potential = 0.0631 * 7996867 kWh = 504.602 MWh The thermal saving potential = 0.1391 * 91913748 MJ = 12,785.202 GJ
  14. 14. Areas of Potential Savings  Improvement in motor loading  Replacement of old and re-winded motors by energy efficient motors  Minimization of energy losses by partition of cooling areas, installation and effective use of air curtains  Improvement in insulation  Introduction of modern/efficient belt and pulleys to the drives of compressors  Regular cleaning and maintenance of condenser pipes  Improvement in the efficiency of capacitor banks  Improvement in combustion efficiency in boilers  Minimization of heat losses from the boiler  Minimization of steam leakages  Insulation of steam pipes, valves and flanges  Insulation of walls and ceiling of incubation room  Improvement in steam supply system  Condensate recovery
  15. 15. Instant Noodle Sub-sector
  16. 16. Observations  Instant Noodle industries consume both electrical and thermal energy  Boilers are installed to get steam for cooking processes and boiler fuel is rice husk  Use of re-winded motors  Steam leakages  Insulation of steam distribution system not satisfactory  Inefficient steam distribution lines observed
  17. 17. Saving Potentials - Noodle ESPS studies have shown that the saving potential for electrical energy is 6.15% and thermal energy is 11.38%. The electrical saving potential = 0.0615 * 3,956,752 kWh = 243,340 kWh = 243.34 MWh The thermal saving potential = 0.1138* 235,382,966 MJ = 26,786,582 MJ = 26,786.582 GJ
  18. 18. Areas of Potential Savings  Improvement in motor loading  Replacement of old and rewinded motors by energy efficient motors  Installation of capacitor banks  Load management  Improvement in combustion efficiency in boilers  Minimization of steam leakages  Insulation of steam pipes, valves and flanges  Improvement in steam supply system  Condensate recovery
  19. 19. Sugar Sub-sector
  20. 20. Observations  Sugar mills need both electrical and thermal energy  Installed with steam turbines to generate power for its production process  Sugar mills are installed with high pressure boilers and boiler fuel is bagasse obtained from the crushing of canes  Heavy motors are used for crushing, pumps, fans and compressors  Use of re-winded motors  Capacitor banks are installed  One of the sugar mills has surplus turbine capacity with possibility to supply to central grid by cogeneration
  21. 21. Saving Potentials - Sugar SEC is not useful due to lower consumption in the country as the mills do not account for use of bagasse The saving potentials from ESPS are 14.55% for electrical energy and 20.73% of the thermal energy. The electrical saving potential = 0.1455 * 5,386,106 kWh = 783,678 kWh = 783.678 MWh The thermal saving potential = 0.2073* 10,106,898 MJ = 2,095,160 MJ = 2,095.16 GJ
  22. 22. Areas of Potential Savings  Improvement in motor loading  Replacement of old and re-winded motors by energy efficient motors  Improvement in the efficiency of capacitor banks  Improvement in combustion efficiency in boilers  Minimization of heat losses from the boiler  Minimization of steam leakages  Insulation of steam pipes, valves and flanges  Improvement in steam supply system  Condensate recovery  Waste heat recovery
  23. 23. Vegetable Oil & Ghee Sub-sector
  24. 24. Observations  Vegetable oil refinery industries consume both electrical and thermal energy  Boilers are installed to get steam for heating of oil at different stages of processing and boiler fuel is rice husk  Use of re-winded motors  Steam leakages  Insulation of steam distribution system not satisfactory  Inefficient steam distribution lines observed
  25. 25. Saving Potentials Vegetable Oil & Ghee n=16, Qs = 122,034 MT, Eo = 200 MJ/MT or 55.55 kWh/MT, To = 2700 MJ/MT Σ(Ex-Eo) = 2100 MJ/MT, Σ(Tx-To) = 52442 MJ/MT Electrical Saving Potentials = (Qs/n) * Σ(Ex – Eo) = (122034/16)*2100 = 16,016,963 kWh = 16,017 MWh Thermal Saving Potentials = (Qs/n) * Σ(Tx – To) = (122034/16)*52442 = 399,981,689 MJ = 399,982 GJ
  26. 26. Saving Potentials Vegetable Oil & Ghee From ESPS studies, the potentials are 5.49% for Electrical and 11.07% for thermal energy. The electrical saving potential = 0.0549 * 21,863,604 kWh = 1,200,312 kWh = 1,200.312 MWh The thermal saving potential = 0.1107 * 705,371,030 = 78,084,573 MJ = 78,084.573 GJ
  27. 27. Areas of Potential Savings  Improvement in motor loading  Replacement of old / re-winded motors by energy efficient motors  Introduction of Variable Frequency Drives (VFD)  Minimization of energy losses by proper insulation of cold rooms, installation and effective use of air curtains  Improvement in insulation of the cold pipelines  Introduction of modern/efficient belt and pulleys to the drives  Regular cleaning and maintenance of condenser pipes  Improvement in the efficiency of capacitor banks  Improvement in combustion efficiency in boilers  Minimization of heat losses from the boiler  Minimization of steam leakages  Insulation of boiling pans, steam pipes, valves and flanges  Improvement in steam supply system  Condensate recovery  Waste heat recovery from cooling of oil
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