TEKA Kom. Mot. Energ. Roln. - OL PAN, 2007, 7, 277–285 FACTORS INFLUENCING ENERGY CONSUMPTION IN FRUIT AND VEGETABLE PROCESSING PLANTS Janusz Wojdalski, Bogdan DróŜdŜ, Michal Lubach Production Engineering Department, Warsaw Agricultural University Nowoursynowska Str. 166, 02-787 Warsaw, Poland, e-mail: wip koip@sggw.waw.pl Summary. Results have been presented of research on variability of total energy in fruit and vege- table processing plants. Reasons have been explained for the variability of per unit energy con- sumption indices taking into account the impact of various technical and technological factors. Per unit fuel and energy consumption indices have been obtained that can be applied in determining environment standards and production costs. Key words: fruit and vegetable processing industry, production energy consumption, company per unit fuel and energy consumption indices SPECIFICATION OF DESIGNATION CODES A c – heat energy consumption per twenty-four hour period (A c = B rz 6 10 · - r w Q ), GJ/24 h A e – active electrical energy consumption, kW⋅h/24 h A t1 – total energy consumption (taking into account conversion factor 1 kW·h = 0.012 GJ), GJ/24 h A t2 – total energy consumption (taking into account conversion factor 1 kW·h = 0.0036 GJ), GJ/24 h B pu – coal equivalent consumption per twenty-four hour period, kg/24 h B rz – real fuel consumption, kg/24 h K 2 – processing plant cubic capacity per 1000 kg (1 Mg) of processed raw material per twenty-four hour period, m 3 /Mg K m – installed capacity per 1000 kg (1 Mg) of processed raw material per twenty-four hour period, kW/Mg P – total installed capacity of electrical appliances in the processing plant, kW P 1 – total installed capacity of electrical appliances in the processing plant boiler-house, hydrophore-room, water treatment station, kW P 2 – installed capacity of electrical appliances related to fuel storage and transportation, kW P 3 – installed capacity of electrical appliances used in storage, freezing and air- conditioning (inclusive of ammonia compressors), kW