Condition for Maintaining Constant Temperature in the Phase Transition Heat Flow Accumulators

Abstract

Maintaining the coolant constant temperature at the outlet in the phase transition heat flow accumulators, close to the phase transition temperature, is ensured by sufficiently intense heat exchange between the coolant and the phase transition surface. At the same time, the coolant temperature deviation at the outlet less than the permissible value could not always be provided during the entire phase transition period. For the constant cross-section accumulators with constant thermal characteristics along the length, an analytical solution was obtained making it possible to calculate the point in time, starting from which the coolant temperature deviation at the outlet from the phase transition temperature became higher than the permissible value. It could be applicable in calculating many phase transition heat flow accumulators (shell and tube, capsule, etc.) that use complex configuration of the heat exchange surfaces. To derive it, an analytical quasi-stationary solution was used corresponding to an ideal case, when thermal resistance in the phase-transition material was low. In this case, the process sufficiently high intensity was ensured by selecting the appropriate design parameters at the design stage. The resulting analytical solution describes the charging and discharging processes in accumulators with different configurations of the heat exchange surfaces and appears general in describing processes in the flow heat accumulators

Please cite this article in English as:

Rossikhin N.A., Chukaev A.G., Makarenkov D.A. Condition for maintaining constant temperature in the phase transition heat flow accumulators. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2024, no. 2 (113), pp. 74--87 (in Russ.). EDN: KWUFJW

References

[1] Grilikhes V.A., Matveev V.M., Poluektov V.P. Solnechnye vysokotemperaturnye istochniki tepla dlya kosmicheskikh apparatov [Solar high-temperature heat sources for space vehicles]. Moscow, Mashinostroenie Publ., 1975.

[2] Beckmann G., Gilli P.V. Thermal energy storage. Springer, 1984.

[3] Levenberg V.D., Tkach K.M., Golstrem V.A. Akkumulirovanie tepla [Heat accumulation]. Kiev, Tekhnika Publ., 1991.

[4] Kuravi S., Trahan J., Goswami D.Y., et al. Thermal energy storage technologies and systems for concentrating solar power plants. Prog. Energy Combust. Sci., 2013, vol. 39, iss. 4, pp. 285--319. DOI: https://doi.org/10.1016/j.pecs.2013.02.001

[5] Umerenkov E.V. Razrabotka akkumulyatorov teploty na fazovom perekhode dlya sistem teplosnabzheniya. Avtoref. dis. kand. tekh. nauk [Development of phase transition heat accumulators for heat supply systems. Abs. Cand. Sc. (Eng.) Diss.]. Kursk, YuZSU, 2012 (in Russ.).

[6] Miui Dzosen K.K. Teploakkumuliruyushchiy sosud [Heat storage vessel]. Patent JPS 5736519B2. Appl. 19.04.1976, publ. 04.08.1982.

[7] Saito A., Saito A., Utaka Y., et al. Basic research on a latent heat thermal energy storage by direct contact melting and solidification. 1st Report: Visual experiments of direct contact solidification process in paraffin. Trans. JSRAE, 1986, vol. 3, no. 1, pp. 43--50. DOI: https://doi.org/10.11322/tjsrae.3.43

[8] Saito A., Saito A., Utaka Y., et al. Basic research on a latent heat thermal energy storage by direct contact melting and solidification. 2nd Report: Heat transfer characteristics of direct contact solidification of n-Eicosane as PCM. Trans. JSRAE, 1983, vol. 3, no. 1, pp. 51--60. DOI: https://doi.org/10.11322/tjsrae.3.51

[9] Gerhard V. Warmespeicher. Patent DE 3010849. Appl. 21.03.1980, publ. 15.10.1981.

[10] Mehling H. Latent heat storage with PCM-graphite composite material: experimental results from the first test store and potential application field. IEA, ECES IA Annex 10, Phase Change Materials and Chemical Reactions for Thermal Energy Storage. 6th Workshop, 2000. 9 p.

[11] Saito A., Saito A., Katayama K. Basic research on a thermal energy reservoir containing latent heat tes cylindrical capsules. Trans. JSRAE, 1986, vol. 3, no. 1, pp. 35--42. DOI: https://doi.org/10.11322/tjsrae.3.35

[12] Domanski R. Experimental and theoretical investigation of spiral PCM thermal energy storage. Unit IEA, ECES IA Annex 10, Phase Change Materials and Chemical Reactions for Thermal Energy Storage. 2nd Workshop, 1998. 8 p.

[13] Hiroshi I. Operation records of encapsuled heat storage system. IEA, ECES IA Annex 10, Phase Change Materials and Chemical Reactions for Thermal Energy Storage. 2nd Workshop, 1998. 14 p.

[14] Arkar C., Medved S. Enhanced solar assisted building ventilation system using sphere encapsulated PCM thermal heat storage. IEA, ECES IA Annex 17, Advanced Thermal Energy Storage Techniques --- Feasibility Studies and Demonstration Projects. 2nd Workshop, 2002. 9 p.

[15] Rossikhin N.A. A system of equations of heat transfer and changing phase mass in phase transition heat accumulators. Aerokosmicheskiy nauchnyy zhurnal [Aerospace Scientific Journal], 2017, no. 3, pp. 39--52 (in Russ.).

[16] Rossikhin N.A. General analytical solution of the heat transfer problem in flow heat accumulators on phase transitions. Sciences of Europe, 2019, vol. 44, no. 1, pp. 48--59. EDN: UQOTFN

[17] Rossikhin N.A., Chukaev A.G., Makarenkov D.A. On problem of calculating capsule heat accumulator by analytical dependence. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2016, no. 8, pp. 82--84 (in Russ.). EDN: WXOUVJ

[18] Rossikhin N.A., Chukaev A.G. Solidification of a limited flat layer of material washed by a heat carrier. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2015, no. 11, pp. 482--484 (in Russ.). EDN: VHTLUV

[19] Rossikhin N.A., Chukaev A.G. Solidification of a cylindrical layer of material washed from inside by a coolant. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2016, no. 2, pp. 87--89 (in Russ.). EDN: VWVQNV

[20] Rossikhin N.A., Chukaev A.G. Solidification of a cylindrical layer of material washed from outside by a coolant. Estestvennye i tekhnicheskie nauki [Natural and Technical Sciences], 2016, no. 2, pp. 90--92 (in Russ.). EDN: VWVQOF

[21] Rossikhin N. Heat transfer equations in flow-through phase transition heat accumulators with different heat exchange surfaces. Sciences of Europe, 2023, no. 127, pp. 119--128. DOI: https://doi.org/10.5281/zenodo.10039452