PDF Publication Title:
Text from PDF Page: 019
M.M. Kenisarin, et al. Journal of Energy Storage 27 (2020) 101082 Fig. 36. Effect of various factors on the rate of solidified mass fraction: a – material of spherical shell;b – diameter of sphere; c – temperature of external fluid; d – initial temperature of PCM [95]. effect of different factors on solidification of water inside a spherical capsule. The effects of the internal radius of the sphere, coolant tem- perature, Biot number and shell thickness are shown in Fig. 36. By numerical simulations, the time of complete solidification related to the coolant temperature can be written as phase change of water in spherical enclosures. The test sphere was filled to 80% of its volume with the de-ionized water. The experiments on freezing were conducted with spheres having diameters of 8.14, 7.00, and 6.27 cm at HTF (chilled water) temperatures of -9.5 and -4.4 °C. From tests, the variations in the solid-liquid interface position were found as Table 5 Comparison of the complete solidification time, calculated using the correla- tions of different authors [97]. tf = 1.52977 × 10 4T4 0.15605T3 + 59.69380T2 and to the Biot number as tf = 13.526Bi 0.5685 Authors of [95, 96] concluded that the time for complete solidifi- cation increases with the rise in the diameter of the spherical shell and decreases with reduction of the working fluid temperature. The thermal conductivity of the shell materials plays an important role and poor conducting materials causes the delay in starting the solidification process. The increase in the Biot number on the external surface led to a reduction in the time for complete solidification. Eames and Adref [66, 67] performed an experimental study on the 19 10148.7T + 647014 (37) (38) Ste Tao (1967) 0.1 1.920 0.3 0.5 0.474 0.8 1.0 0.284 2.0 0.180 Quasi- Pedroso steady (1973) 1.667 1.805 0.556 0.686 0.333 0.460 0.208 0.333 0.167 0.290 0.083 0.204 Riley Poots (1974) (1962) 1.791 0.924 0.649 0.368 0.406 0.257 0.256 0.195 0.200 0.174 0.062 0.132 Improved quasi-steady 1.773 0.668 0.452 0.336 0.300 0.247PDF Image | Journal of Energy Storage 27
PDF Search Title:
Journal of Energy Storage 27Original File Name Searched:
tes-spherical-ball-storage-paraffin.pdfDIY PDF Search: Google It | Yahoo | Bing
Turbine and System Plans CAD CAM: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. More Info
Waste Heat Power Technology: Organic Rankine Cycle uses waste heat to make electricity, shaft horsepower and cooling. More Info
All Turbine and System Products: Infinity Turbine ORD systems, turbine generator sets, build plans and more to use your waste heat from 30C to 100C. More Info
CO2 Phase Change Demonstrator: CO2 goes supercritical at 30 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, and more. This can also be used for a GTL Gas to Liquids experimental platform. More Info
Introducing the Infinity Turbine Products Infinity Turbine develops and builds systems for making power from waste heat. It also is working on innovative strategies for storing, making, and deploying energy. More Info
Need Strategy? Use our Consulting and analyst services Infinity Turbine LLC is pleased to announce its consulting and analyst services. We have worked in the renewable energy industry as a researcher, developing sales and markets, along with may inventions and innovations. More Info
Made in USA with Global Energy Millennial Web Engine These pages were made with the Global Energy Web PDF Engine using Filemaker (Claris) software.
Sand Battery Sand and Paraffin for TES Thermo Energy Storage More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)