SIMULATION STUDY ON ENHANCING HYDROGEN PRODUCTION IN AN OCEAN THERMAL ENERGY (OTEC) SYSTEM UTILIZING A SOLAR COLLECTOR

Authors

  • Amyra MY Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia ,K. Lumpur, Malaysia
  • Nor'azizi Othman Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia ,K. Lumpur, Malaysia
  • Shamsul Sarip Razak School of Engineering and Advanced Technology, Universiti Teknologi Malaysia, K. Lumpur, Malaysia
  • Yasuyuki Ikegami Institute of Ocean Energy, Saga University, Saga, Japan
  • Mohd Alshafiq Tambi Chik Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia ,K. Lumpur, Malaysia
  • Norazli othman Razak School of Engineering and Advanced Technology,Universiti Teknologi Malaysia, K. Lumpur
  • Ridzuan Yacob School of Business & Management Maritime, Universiti Malaysia Terengganu, Malaysia
  • Hirofumi Hara Institute of Ocean Energy, Saga University, Saga, Japan
  • Zuriati Zakaria Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia ,K. Lumpur, Malaysia

DOI:

https://doi.org/10.11113/jt.v77.4145

Keywords:

Solar collector, ocean thermal energy, hydrogen production, power generation, solar energy

Abstract

This article reports the simulation study on the performance of utilizing a solar collector at the inlet of an evaporator to provide auxiliary heat into a system for hydrogen generation in an OTEC cycle. The conventional method of OTEC is simulated by FORTRAN programming and the results were compared with the presence of solar collector on the system. In the simulation experimental, the incoming temperature of warm seawater was boosted by using a flat plate solar collector. For the purpose of the experiment, a 100 kW OTEC cycle that was designed incorporated a solar boosting capability. Its thermodynamic efficiency was then compared through a series of simulation involving several control parameters. The results reveal that the proposed solar boosted OTEC enhanced the thermal efficiency, TE. Increase in solar power absorption can increase the net power output, thus increasing the amount of hydrogen produced. The results obtained provided insights, from a thermodynamic perspective, on the outcome of combining sustainable energy with solar thermal energy to improve the system performance.

References

Aydin, H., et al. 2014. Off-Design Performance Analysis of a Closed-cycle Ocean Thermal Energy Conversion System with Solar Thermal Preheating and Superheating. Renewable Energy. 72: 154-163.

Wang, T., et al. 2010. Performance Analysis and Improvement for CC-OTEC System. Journal of Mechanical Science and Technology. 22(10): 1977-1983.

Yeh, R.-H., T.-Z. Su, and M.-S. Yang. 2005. Maximum Output of an OTEC Power Plant. Ocean Engineering. 32(5-6): 685-700.

Uehara, H. and Y. Ikegami. 1990. Optimization of a Closed-cycle OTEC System. Journal of Solar Energy Engineering. 112(4): 247-256.

Ahmadi, P., I. Dincer, and M. A. Rosen. 2013. Energy and Exergy Analyses of Hydrogen Production Via Solar-Boosted Ocean Thermal Energy Conversion and PEM Electrolysis. International Journal of Hydrogen Energy. 38(4): 1795-1805.

Yamada, N., A. Hoshi, and Y. Ikegami. 2009. Performance Simulation of Solar-boosted Ocean Thermal Energy Conversion Plant. Renewable Energy. 34(7): 1752-1758.

Straatman, P. J. and W. G. van Sark. 2008. A New Hybrid Ocean Thermal Energy Conversion–Offshore Solar Pond (OTEC–OSP) Design: A Cost Optimization Approach. Solar Energy. 82(6): 520-527.

Tinaikar, A. 2013. Ocean Thermal Energy Conversion. International Journal of Energy and Power Engineering. 2(4): 143.

Uehara, H., et al. 1999. The Experimental Research on Ocean Thermal Energy Conversion Using the Uehara Cycle. In Procedings of International OTEC/DOWA Conference, Imari, Japan.

Kalina, A. I. 1982. Generation of Energy by Means of a Working Fluid, and Regeneration of a Working Fluid. Google Patents.

Ravindran, M. and R. Abraham. The Indian 1 MW Demonstration OTEC Plant and the Development Activities. In OCEANS'02 MTS/IEEE. 2002. IEEE.

Dincer, I. 2012. Green Methods for Hydrogen Production. International Journal of Hydrogen Energy. 37(2): 1954-1971.

Turner, J., et al. 2008. Renewable Hydrogen Production. International Journal of Energy Research. 32(5): 379-407.

Nihous, G. and L. Vega. 1993. Design of a 100 MW OTEC-Hydrogen Plantship. Marine Structures. 6(2): 207-221.

Vijayakrishna Rapaka, E., et al. Modeling of Hydrogen Production through an Ocean Thermal Energy Conversion System.

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Published

2015-10-20

How to Cite

MY, A., Othman, N., Sarip, S., Ikegami, Y., Tambi Chik, M. A., othman, N., … Zakaria, Z. (2015). SIMULATION STUDY ON ENHANCING HYDROGEN PRODUCTION IN AN OCEAN THERMAL ENERGY (OTEC) SYSTEM UTILIZING A SOLAR COLLECTOR. Jurnal Teknologi, 77(1). https://doi.org/10.11113/jt.v77.4145

Issue

Section

Science and Engineering