Energetic analysis of fruit juice processing operations in Nigeria


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Energetic analysis of fruit juice processing operations in Nigeria is a well researched topic, it is to be used as a guide or framework for your Academic Research.


Energy and exergy studies were conducted in an orange juice manufacturing industry in Nigeria to determine the energy consumption
pattern and methods of energy optimization in the company. An adaptation of the process analysis method of energy accounting was
used to evaluate the energy requirement for each of the eight defined unit operations. The types of energy used in the manufacturing of
orange juice were electrical, steam, and manual with the respective proportions of 18.51%, 80.91%, and 0.58% of the total energy. It was
estimated that the average energy intensity of 1.12 MJ/kg was required for the manufacturing of orange juice. The most energy-intensive
operation was identified as the pasteurizer followed by packaging unit with energy intensities of 0.932 and 0.119 MJ/kg, respectively. The
exergy analysis revealed that the pasteurizer was responsible for most of the inefficiency (over 90%) followed by packaging (6.60%). It
was suggested that the capacity of the pasteurizer be increased to reduce the level of inefficiency of the plant. The suggestion has been
limited to equipment modification rather than process alteration, which constitutes additional investment cost and may not be
economical from an energy savings perspective. Energy is a highly important resource for human and

industrial activities. It exists in many forms and can be
classified as renewable and non-renewable. Renewable
energy sources include solar, hydro (water), wind, and
geothermal energy. Non-renewable energy sources include
fossil fuels and nuclear energy. Most production industries
worldwide depend heavily on energy derived from non-
renewable resources. This form of energy, obtained mostly
from petroleum products, has played a key role in the
production processes including those involving heat
transfers, mass transfer, and mechanical processing and
handling [1]. Nigeria is naturally endowed with abundant
energy resources including solar, hydro, and fossil fuels
(petroleum and coal). The major sources of industrial
energy in the country are fossil fuels including fuel oil
(petroleum), natural gas, coal and, electricity generated by
the thermal and hydropower stations. The supply of
electricity in the country is in acute shortage due in part to
the dearth of underlying power generating technology and
old facilities of the power stations, and also due to the
problems in the transmission and the distribution of the
energy. Consequently, most companies in the country now
rely mainly on the use of heavy-duty generating plant for
the supply of their electrical energy, which is used for
operations such as air conditioning, lighting and some
machining processes.

The increasing energy demands coupled with the finite
energy resources, the rising cost of fossil fuels and the
considerable environmental impacts connected with their
exploitation necessitate the needs to understand the
mechanisms, which degrade the quality of energy and
energy systems. The processes that degrade the quality of
energy resources can only be identified through a detailed
analysis of the whole system.


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Agricultural Engineering

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