Open AccessEnergy study of edamame freezing process at PT Mitratani Dua Tujuh Jember
Author(s) -
Budi Hariono,
Siti Djamila,
Amal Bahariawan,
Rizza Wijaya,
Suluh Pambudi
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1450/1/012057
Subject(s) - refrigerant , gas compressor , refrigeration , coefficient of performance , vapor compression refrigeration , cooling capacity , materials science , cold storage , condensation , evaporation , cooling load , environmental science , nuclear engineering , thermodynamics , mechanical engineering , air conditioning , engineering , physics , horticulture , biology
Knowledge of the cooling load of products that will be stored frozen in cold storage needs to be known. The purpose of this research was to analyse the cooling load in cold storage, calculate the freezing time of the product, calculate the amount of heat in the vapor compression cycle and the coefficient of performance (COP). PT. Mitratani Dua Tujuh is a company engaged in the processing of frozen fast food and edamame as one of the leading frozen products in this company. The maximum capacity of cold storage used was 190 tons with an air speed of 0.9 m/s and used two compressors with R-404A refrigerant type. The results of the analysis found that the freezing time per package on the product was 5.28 hours. Cold storage cooler load of 55, 432 kW or equivalent to 15.75 tons of refrigeration. The amount of heat in the compression cycle consisted of compression, condensation, expansion and evaporation were 6, 45 kW, 34, 17 kW, 17, 18 kW and 27, 72 kW, and the coefficient of performance (COP) was 1, 237.