Research article
Energy performance analysis of pasta and macaroni factory-a case study
-
1.
Mechanical Engineering Department, Adama Science and Technology University, Adama, Ethiopia
-
2.
Mechanical Engineering Department, Haramaya University, Haramaya, Ethiopia
-
Received:
07 October 2020
Accepted:
07 January 2021
Published:
18 January 2021
-
-
-
-
The great expansion of industries in Ethiopia has significantly increased the demand for the limited energy source of the country. Hence, effective and efficient way of utilizing the available energy is a crucial issue in all industries. This study investigates the energy consumption performance and possible energy saving potentials of Pasta and Macaroni Factory-a case of Africa PLC which is located in Adama city. It is the biggest pasta and macaroni producing factory in the city and consuming a very large amount of energy.
The thermal and electrical energy consumption of the factory has been analyzed based on the actual data measured. The thermal performances of the two boilers (steam generators) are analyzed using an indirect method (i.e., calculating the different losses) and the typical boiler efficiency obtained are 81% and 80% for boiler #1 and #2 respectively. It is found that the major heat loss from the boilers is due to the dry exhaust gas. Similarly, water chiller, air compressor, electrical motors, pumps and lighting system equipment energy utilization have been analyzed. The various energy saving measures are analyzed and it is found that the industry can save 2,301 GJ/year of electrical energy by using high efficient motors instead of the existing normal standard motors, 782.6 GJ/year of heat energy can be recovered from the dry exhaust gas by using air preheater and 1,221 GJ/year of heat energy can be recovered by controlling the air to fuel ratio which is a significant energy saving potential. Finally this study reveals that the total possible annual bill saving potential of the factory is 1,676,871 ETB.
Citation: Degaga Abdi, Addisu Bekele, Chandraprabu Venkatachalam, Mohanram Parthiban. Energy performance analysis of pasta and macaroni factory-a case study[J]. AIMS Energy, 2021, 9(2): 238-256. doi: 10.3934/energy.2021013
-
Abstract
The great expansion of industries in Ethiopia has significantly increased the demand for the limited energy source of the country. Hence, effective and efficient way of utilizing the available energy is a crucial issue in all industries. This study investigates the energy consumption performance and possible energy saving potentials of Pasta and Macaroni Factory-a case of Africa PLC which is located in Adama city. It is the biggest pasta and macaroni producing factory in the city and consuming a very large amount of energy.
The thermal and electrical energy consumption of the factory has been analyzed based on the actual data measured. The thermal performances of the two boilers (steam generators) are analyzed using an indirect method (i.e., calculating the different losses) and the typical boiler efficiency obtained are 81% and 80% for boiler #1 and #2 respectively. It is found that the major heat loss from the boilers is due to the dry exhaust gas. Similarly, water chiller, air compressor, electrical motors, pumps and lighting system equipment energy utilization have been analyzed. The various energy saving measures are analyzed and it is found that the industry can save 2,301 GJ/year of electrical energy by using high efficient motors instead of the existing normal standard motors, 782.6 GJ/year of heat energy can be recovered from the dry exhaust gas by using air preheater and 1,221 GJ/year of heat energy can be recovered by controlling the air to fuel ratio which is a significant energy saving potential. Finally this study reveals that the total possible annual bill saving potential of the factory is 1,676,871 ETB.
References
[1]
|
Brunetti L, Giametta F, Catalano P, et al. (2015) Energy consumption and analysis of industrial drying plants for fresh pasta process. J Agric Eng 478: 167-171.
|
[2]
|
Wójtowicz A, MoĞcicki L (2008) Energy consumption during extrusion-cooking of precooked pasta. Teka Kom Mot Energ Roln-Ol Pan 8: 311-318.
|
[3]
|
Oyedepo OS, Adaramola MS, Odunfa MK, et al. (2015) Analysis of energy utilization in selected industries in Southwestern Nigeria. Energy Eng 112: 47-74. doi: 10.1080/01998595.2015.11494386
|
[4]
|
Carlsson-Kanyama A, Faist M (2000) Energy use in the food sector: A data survey. Swedish Environmental Protection Agency, Stockholm (Sweden).
|
[5]
|
Perone C, Catalano F, Tamborrino A, et al. (2017) Study and analysis of a cogeneration system with microturbines in a food farming of dry pasta. Chem Eng Trans 58: 499-504.
|
[6]
|
American Society of Mechanical Engineers (ASME), Performance Test Code (PTC 4) (2013) Performance Test Code for Fired Steam Generators, ASME Standards. Available from: https://www.asme.org/products/codes-standards/ptc-4-2013-fired-steam-generators.
|
[7]
|
Lahijani AM, Supeni EE, Kalantari F (2017) A review of indirect method for measuring thermal efficiency in fire tube steam boilers. J Ind Pollut Control 34: 1825-1832.
|
[8]
|
Barma MC, Saidur R, Rahman SMA, et al. (2017) A review on boilers energy use, energy savings, and emissions reductions. Renewable Sustainable Energy Rev 79: 970-983. doi: 10.1016/j.rser.2017.05.187
|
[9]
|
Harimi M, Sapuan SM, Ahmad MMHM, et al. (2008) Numerical study of heat loss from boiler using different ratios of fibre-to-shell from palm oil wastes. J Sci Ind Res 67: 440-444.
|
[10]
|
Nagar V, Soni VK, Khare VK (2013) Boiler efficiency improvement through analysis of losses. IJSRD-Int J Sci Res Dev 1: 2321-0613.
|
[11]
|
Sachin MR, Sanjay BK, Krishna CT (2014). Energy performance assessment of boiler at P.S.S.K. Ltd, Basmathnagar, Maharashtra State. Int J Emerging Technol Adv Eng 4: 2250-2459.
|
[12]
|
Kayabasi E, Erdogan E (2017) Design and simulation of recuperator for hot stoves. Int J Mech Prod Eng 5: 15-20.
|
[13]
|
Kakaç S, Liu H, Pramuanjaroenkij A (2012). Heat Exchanger Selection, Ratingand Thermal Design. Third Edition, CRC Press, Taylor & Francis Group.
|
[14]
|
Basheer SPV, Assaf MC, Mahin S, et al. (2018) Design of air pre-heater to improve the efficiency of boiler in tcc plant. Int Res J Eng Technol, 2395-0056.
|
[15]
|
Saidur R (2011) Energy savings and emission reductions in industrial boilers. Therm Sci 15: 705-719. doi: 10.2298/TSCI091014046S
|
[16]
|
Saidur R, Hasanuzzaman M, Mahlia TMI, et al. (2011) Chillers energy consumption, energy savings and emission analysis in an institutional buildings. Energy 36: 5233-5238. doi: 10.1016/j.energy.2011.06.027
|
[17]
|
Paya-Marin MA, Roy K, Chen JF, et al. (2020) Large-scale experiment of a novel non-domestic building using BPSC systems for energy saving. Renewable Energy 152: 799-811. doi: 10.1016/j.renene.2020.01.100
|
-
-
-
-