282
R. Kumar et al.
14.4 Conclusion
We designed MSLPCM based thermal heat packs for thermal comfort application
and the thermal performance of metastable supercooled liquid phase change material
based heat pack is evaluated against an identical water heat pack. The heating time
of MSLPCM based heat pack is ~4.4 times more than that of water based heat pack.
Thus, MSLPCM heat pack, showing excellent thermal performance, may be the
promising thermal energy storage systems for providing thermal comfort to human
beings in extreme cold environments in the form of body heating and also for medical
applications such as treatment of muscle cramps, frostbite etc.
Acknowledgements Authors acknowledge Defence Research and Development Organization
(DRDO) and Central Instrumentation Facility at IIT Jodhpur for supporting this work.
References
Barrett PF, Best BR (1985) Thermal energy storage in supercooled salt mixtures. Mater Chem Phys
12:529–536. https://doi.org/10.1016/0254-0584(85)90038-0
Barrett PF, Best BR, Oldham KB (1984) Thermal energy storage in supersaturated salt solutions.
Mater Chem Phys 10:39–49. https://doi.org/10.1016/0254-0584(84)90077-4
Kapralis GI, Kapralis JE, Lowther J (1990) Inventors assignee. Imperforate groove trigger. United
States patent US 4,899,727 A. 1990 Feb. 13
Kimura H, Kai J (1985) Phase change stability of sodium acetate trihydrate and its mixtures. Sol
Energy 35:527–534. https://doi.org/10.1016/0038-092x(85)90121-5
Kumar R, Dixit A, Chandra L, Vyas S, Kumar R (2016) An experimental set-up for measuring
thermodynamic response of low temperature phase change materials. In: 2016 First IEEE international conference on control, measurement and instrumentation (CMI), pp 107–109
Kumar R, Vyas S, Kumar R, Dixit A (2017) Development of sodium acetate trihydrate-ethylene
glycol composite phase change materials with enhanced thermophysical properties for thermal
comfort and therapeutic applications. Sci Rep 7:5203
Sandnes B, Rekstad J (2006) Supercooling salt hydrates: Stored enthalpy as a function of temperature. Sol Energy 80:616–625. https://doi.org/10.1016/j.solener.2004.11.014
Ulman A, Valentin B (1983) Investigations of sodium acetate trihydrate for solar latent-heat storage, controlling the melting point. Sol Energy Mater 92:177–181. https://doi.org/10.1016/01651633(83)90040-0
Wani I (2010) Kangri cancer. surgery 147:586–588. https://doi.org/10.1016/j.surg.2009.10.025
Watson SS, Watson WKR (1976) Inventors; kay laboratories, Inc., assignee. Constant temperature
device. United States patent US 3,951,127A. Apr. 20
R. Kumar et al.
14.4 Conclusion
We designed MSLPCM based thermal heat packs for thermal comfort application
and the thermal performance of metastable supercooled liquid phase change material
based heat pack is evaluated against an identical water heat pack. The heating time
of MSLPCM based heat pack is ~4.4 times more than that of water based heat pack.
Thus, MSLPCM heat pack, showing excellent thermal performance, may be the
promising thermal energy storage systems for providing thermal comfort to human
beings in extreme cold environments in the form of body heating and also for medical
applications such as treatment of muscle cramps, frostbite etc.
Acknowledgements Authors acknowledge Defence Research and Development Organization
(DRDO) and Central Instrumentation Facility at IIT Jodhpur for supporting this work.
References
Barrett PF, Best BR (1985) Thermal energy storage in supercooled salt mixtures. Mater Chem Phys
12:529–536. https://doi.org/10.1016/0254-0584(85)90038-0
Barrett PF, Best BR, Oldham KB (1984) Thermal energy storage in supersaturated salt solutions.
Mater Chem Phys 10:39–49. https://doi.org/10.1016/0254-0584(84)90077-4
Kapralis GI, Kapralis JE, Lowther J (1990) Inventors assignee. Imperforate groove trigger. United
States patent US 4,899,727 A. 1990 Feb. 13
Kimura H, Kai J (1985) Phase change stability of sodium acetate trihydrate and its mixtures. Sol
Energy 35:527–534. https://doi.org/10.1016/0038-092x(85)90121-5
Kumar R, Dixit A, Chandra L, Vyas S, Kumar R (2016) An experimental set-up for measuring
thermodynamic response of low temperature phase change materials. In: 2016 First IEEE international conference on control, measurement and instrumentation (CMI), pp 107–109
Kumar R, Vyas S, Kumar R, Dixit A (2017) Development of sodium acetate trihydrate-ethylene
glycol composite phase change materials with enhanced thermophysical properties for thermal
comfort and therapeutic applications. Sci Rep 7:5203
Sandnes B, Rekstad J (2006) Supercooling salt hydrates: Stored enthalpy as a function of temperature. Sol Energy 80:616–625. https://doi.org/10.1016/j.solener.2004.11.014
Ulman A, Valentin B (1983) Investigations of sodium acetate trihydrate for solar latent-heat storage, controlling the melting point. Sol Energy Mater 92:177–181. https://doi.org/10.1016/01651633(83)90040-0
Wani I (2010) Kangri cancer. surgery 147:586–588. https://doi.org/10.1016/j.surg.2009.10.025
Watson SS, Watson WKR (1976) Inventors; kay laboratories, Inc., assignee. Constant temperature
device. United States patent US 3,951,127A. Apr. 20