Abstract

The work presents the analysis of electric energy consumption in individual buildings of the Ciechanow Dairy Cooperative in 2011. The plant includes a cool storage facility, a boiler house, a compression room and CIP (Cleaning In Place) stations. The plant manufactures liquid milk, cream, cheese, cottage cheese, cream cheese, butter and yoghurts. In 2011, the total electric energy consumption in the Cechanow Dairy Cooperative was 873 114.0 kWh. The highest energy consumption (556 430.0 kWh0 was recorded for the cooler (63.7% of total consumption) and the lowest for CIP stations (33 084.0 kWh). The average electric energy consumption in the Cooperative plant was 72 759.5 kWh, the highest (104 800.6 kWh) in November and the lowest (40 000.6 kWh) in March.

Highlights

  • Energy productivity is a ratio of production to the energy which the production consumes

  • According to guidelines for the dairy industry published in the best available techniques (BAT), significant electric energy consumption for the whole dairy plant is generated by compressors of coolers as well as surface aerators in the plant’s sewage treatment facility

  • Data obtained from the Ciechanów Dairy Cooperative was used to analyse electric energy consumption in the following facilities of the plant: a boiler house, a compression room, a cooling facility and CIP (Cleaning In Place) stations

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Summary

Introduction

Energy productivity is a ratio of production to the energy which the production consumes. According to Budny [3], demand of dairy processing plants is related to several kinds of energy, such as: heat energy, mechanic energy, electric energy, ‘cold’ energy, compressed air energy. According to Mierzejewska [9], around 80% of energy consumed by dairy industry is the energy produced during fuel combustion and processed to steam and warm water.

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