Prospects of the development of new generation ice banks for systems with uneven heat load

Rational application of thermal energy storages with phase transition for objects of food industry with significantly uneven heat loads is grounded in this article. The drawbacks of existing ice banks, suppressing their spread was analyzed. Possible methods of addressing these issues during designing process was considered. The brand new discharge method based on film flow around ice surfaces is proposed. Proposed approach allows to harmonize heat load and provide the maintenance of required ice water temperature level. Lab sample of coaxial film heat exchanger (FHE) was designed by authors. Experimental researches in operating range of the levels of supplied water temperatures 20,40,60 ℃ and mass flow rate 15,30,45,60 kg/min were carried out. Experimentally confirmed that developed construction of FHE with film mechanism of heat exchange provides increased efficiency in orders of magnitude in comparison with ice banks with bulk melting. Reduced heat load with the mass flow rate of 60 kg/min and temperature of medium of 60 ℃ was 220 240 kW/m2 and maximal reduced heat load of the upper layer of coil reached 1300 kW/m2. The generalization of the results showed the prospects of application of film ice banks in refrigeration systems of various industrial and agricultural objects.