1. Solar thermal energy conversion system with thermocline storage for process steam generation in milk dairies
Authors : Dr. P. Badari Narayana, Fahad Masqati, Roopesh Kumar Boyini, Aravind Kota
Pages : 18-27
DOI : http://dx.doi.org/10.21172/1.174.05
Keywords : Thermal Energy Storage (TES)ThermoclineParabolic trough collector(PTC)Molten saltStratification Abstract :: Energy has major role to play in processing industries like milk and dairies in India. Andhra Pradesh and Telangana States are at the third place in the country with respect to milk production. Milk and dairy industry has a potential thermal energy requirement of 1200C or more in the operations such as cleaning & washing, pasteurization, sterilization, evaporation and chilling. Thermal energy storage with concentrated solar power using Parabolic trough Collectors (PTC) can be a better alternative solution to supply the process steam to milk processing units for extended hours of plant operation. The present work estimates the energy requirement to produce around 40 kg/h steam for every 1000 liters of milk requirement. A 32 m2 PTC with a thermocline tank is modelled and analyzed for supplying the required amount of steam for t+2, t+4 and t+6 hours of operation, where t is number of sunshine hours in that particular location. Daily Process steam generation through solar thermal energy conversion is modelled for various favorable sites in south India for year duration. Design procedure for calculating the size of PTC, collector field array and thermal energy storage is presented. The equivalent electrical energy units generated during the same plant hours is also presented. Anantapur is found out to have maximum steam generation with minimum number of collectors for the year-round operation of the plant. This work elucidates the use of solar thermal power with energy storage for process steam requirements in medium scale milk dairies.
Citing this Journal Article :Dr. P. Badari Narayana, Fahad Masqati, Roopesh Kumar Boyini, Aravind Kota, "Solar thermal energy conversion system with thermocline storage for process steam generation in milk dairies ", Volume 17 Issue 4 - October 2020, 18-27
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