Energikartläggning av en livsmedelsindustri
samt förslag på energieffektiviserande åtgärder
This thesis concerns an energy audit of a food industry. The company's business consists of boiling and peeling shrimps, and producing mayonnaise-based salads. This type of work involves energy-intensive processes, such as steam generation, compression of air and refrigeration of large spaces. These needs are supplied with electricity. Furthermore, the industry is a major consumer of district heating, particularly for heating the supply air in the ventilation system. The energy-related processes in the operations consume about 2,300 MWh of electricity and 660 MWh of district heating. There are opportunities to improve the efficiency by controlling the processes, merging different parts of the systems , implementing equipment for energy recovery, and installing more energy-efficient equipment. The primary aim of the food industry is to produce high quality food. In this context it is no wonder that matters that do not affect the primary tasks receive a lower priority. There may, however, be good reason to place these energy-related issues higher on the agenda.