Tasks to be undertaken: An industrial system can be analysed at different levels of detail by considering the energy inputs to the system, the efficiency of the energy conversions within the system and the energy outputs, for example waste heat. Energy is carried around the system in different forms such as hot water, compressed air, gas, electricity and steam. Industrial energy flows can be complex, for example an energy conversion device such as a boiler (chemical energy to heat energy) or a solar array (light to electricity) might supply industrial process as well as energy used in the building. Similarly, waste heat from a process might be re-used, converted into electricity or even exported into a district heating system. Finally, emissions levels depend upon the nature of the energy inputs to the industrial system as well as the amount used. Consider the example of a small (150 employees) manufacturer of vegetarian pies whose owner has decided that she wishes to audit the energy performance of the organisation in order to comply with the EU Energy Efficiency Directive. Additional benefits of the audit are that it will identify opportunities for cost and emissions reduction. The factory was built in the 1970s and has not been significantly modified since then. The cookers and building heating system are fed by steam and hot water from oil fired boilers that are as old as the factory but all other machinery including chillers, conveyors, cutters and pie filling machines are electrically powered.
1. Identify the most significant energy using processes within a typical pie factory and explain briefly how you would quantify the energy used by these processes.
2. Illustrate the main flows of energy into, within and out of the factory, showing the main energy conversions that take place with typical efficiencies. Where are the main losses?
3. Comment on the suitability of renewable energy technologies for this factory and suggest two other ways in which the cost of the organisation’s energy use might be reduced.
This assignment will require careful reading of the lessons used in this module as well as some library research. You may find it helpful to focus your reading on case studies from the food industry. Consider all the major energy using activities in the factory, not just baking. Deliverables to be submitted for assessment: Your report should be no more than 1500 words, not including the list of references. Use appendices to include additional charts, illustrations and data as necessary. The structure of your report should include:
1. An executive summary
2. A description of the context of the report (the transition towards industrial sustainability as well as a company description).
3. A concise description and clearly worded discussion of the energy used within the factory and a comparison between some of the different methods by which it might be reduced.
Include at least one diagram to illustrate your recommendations. Appendices should be no longer than 5 pages in total. Your assignment should be presented as a management report intended to guide strategic decision-making, however you should reference your sources correctly and choose suitably authoritative sources to guide your research. You should use a font of size no less than 10 points.