Analysis of energy saving potentials in intelligent manufacturing: A case study of bakery plants

Abstract

To address the global challenge of the climate change, more strict legislations worldwide on carbon emission reductions have put energy intensive industries under immense pressure to improve the energy efficiency. Due to the lack of technical support and financial incentives, a range of technical and economic barriers still exist for small-medium enterprises (SMEs). This paper first introduces a point energy technology, which is developed for SMEs to improve the insight of the energy usage in the manufacturing processes and installed in a local bakery. Statistical analysis of electricity consumption data over a sevenday period is conducted, including the identification of operational modes for individual processing units using an enhanced clustering method and the voltage unbalance conditions associated with these identified modes. Two technical strategies, namely electrical load allotment and voltage unbalance minimisation, are then proposed, which could attain more than 800 kwh energy saving during this period and the current unbalance could be reduced to less than 10%. In

Reducing GHG Emissions and Improving Cost Effectiveness via Energy Efficiency Enhancements: A Case Study in a Biscuit Industry

“…Holding equipment that do not require long pre-heating on reserve could save about 387 KWH energy [32]. This approach was applied to the cooling conveyor, hoist and depanner as they need only 5s to get ready and could save about 155 KWh energy over seven days [32]. The successful implementation of this type of improvement depends on training of the operation team, time management and cleaning periods of the production process.…”

“…It can be seen that Operational improvements represent reducing the operational hours from the equipment, maintaining productivity, and minimizing energy usage and consumption with no investment required. Holding equipment that do not require long pre-heating on reserve could save about 387 KWH energy [32]. This approach was applied to the cooling conveyor, hoist and depanner as they need only 5s to get ready and could save about 155 KWh energy over seven days [32].…”

How Environmentally Sustainable Is the On-Going Industrial Digitalization? Global Trends and a Swedish Perspective

“…The principle about energy intensity (EE 2 ) was the most directly and explicitly addressed with 133 articles in this category. Energy efficiency has historically been a strong focus in green manufacturing research, often mentioned in connection to other established topics such as production scheduling [15][16][17][18][19][20] and real-time optimization [21][22][23]. Additional expressions such as energy reduction, minimization, and optimization increased the results to 174 articles potentially addressing EE 2 (medium confidence).…”

Technological Energy Efficiency Improvements in Cement Industries

“…To this end, in addition to consulting the literature, a good way to update the state of the art of energy-saving technological opportunities and to check their degree of application is to consult a sample of companies working in the cement industry [19,25]. Due to the increasing competitiveness in the global industrial sector [26], companies are constantly looking for better technological solutions. Consequently, their consultation could be useful to keep up to date with energy efficiency measures currently attractive in real-life contexts.…”