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Experimental performance evaluation of a novel heat exchanger for a solar hot water storage system

Author

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  • Mondol, Jayanta Deb
  • Smyth, Mervyn
  • Zacharopoulos, Aggelos
  • Hyde, Trevor

Abstract

The performance of a novel heat exchanger unit ([`]Solasyphon') developed for a solar hot water storage system was experimentally investigated. The [`]Solasyphon' is a simple [`]bolt-on' heat exchange unit that can be integrated externally to a traditional single-coil hot water cylinder (HWC) avoiding the costly replacement of an existing HWC with a twin-coil HWC. The installation cost of a [`]Solasyphon' is lower compared to a traditional HWC thus offers greater cost effectiveness. A data acquisition system was designed to compare the thermal performance of an integrated [`]Solasyphon' HWC with a traditional twin-coil HWC under controlled simulated conditions. The analysis was based on experimental data collected under various operating conditions including different primary supply temperatures (solar simulated); primary supply patterns and draw off patterns. The results indicated that the [`]Solasyphon' delivered solar heated water directly to the top of the HWC producing a stratified supply at a useable temperature. Under variable solar conditions the [`]Solasyphon' would transfer the heat gained by a solar collector to a HWC more efficiently and quickly than a traditional HWC. The [`]Solasyphon' system can reduce installation costs by 10-40% and has a lower embodied energy content due to less material replacement.

Suggested Citation

  • Mondol, Jayanta Deb & Smyth, Mervyn & Zacharopoulos, Aggelos & Hyde, Trevor, 2009. "Experimental performance evaluation of a novel heat exchanger for a solar hot water storage system," Applied Energy, Elsevier, vol. 86(9), pages 1492-1505, September.
    • Handle: RePEc:eee:appene:v:86:y:2009:i:9:p:1492-1505
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    Citations

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    Cited by:

    1. Dickinson, Ryan M. & Cruickshank, Cynthia A. & Harrison, Stephen J., 2013. "Charge and discharge strategies for a multi-tank thermal energy storage," Applied Energy, Elsevier, vol. 109(C), pages 366-373.
    2. Majumdar, Rudrodip & Saha, Sandip K. & Singh, Suneet, 2018. "Evaluation of transient characteristics of medium temperature solar thermal systems utilizing thermal stratification," Applied Energy, Elsevier, vol. 224(C), pages 69-85.
    3. Mondol, Jayanta Deb & Smyth, Mervyn & Zacharopoulos, Aggelos, 2011. "Experimental characterisation of a novel heat exchanger for a solar hot water application under indoor and outdoor conditions," Renewable Energy, Elsevier, vol. 36(6), pages 1766-1779.
    4. Vijay, Avinash & Hawkes, Adam, 2018. "Impact of dynamic aspects on economics of fuel cell based micro co-generation in low carbon futures," Energy, Elsevier, vol. 155(C), pages 874-886.
    5. Majumdar, Rudrodip & Saha, Sandip K., 2019. "Effect of varying extent of PCM capsule filling on thermal stratification performance of a storage tank," Energy, Elsevier, vol. 178(C), pages 1-20.
    6. Tawfik, M. & Tonnellier, X. & Sansom, C., 2018. "Light source selection for a solar simulator for thermal applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 90(C), pages 802-813.
    7. Vijay, Avinash & Hawkes, Adam, 2019. "Demand side flexibility from residential heating to absorb surplus renewables in low carbon futures," Renewable Energy, Elsevier, vol. 138(C), pages 598-609.
    8. Mawire, Ashmore, 2013. "Experimental and simulated thermal stratification evaluation of an oil storage tank subjected to heat losses during charging," Applied Energy, Elsevier, vol. 108(C), pages 459-465.
    9. Borello, Domenico & Corsini, Alessandro & Delibra, Giovanni & Evangelisti, Sara & Micangeli, Andrea, 2012. "Experimental and computational investigation of a new solar integrated collector storage system," Applied Energy, Elsevier, vol. 97(C), pages 982-989.
    10. Ould Dah, M.M. & Ouni, M. & Guizani, A. & Belghith, A., 2010. "The influence of the heat extraction mode on the performance and stability of a mini solar pond," Applied Energy, Elsevier, vol. 87(10), pages 3005-3010, October.

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