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Research Papers

Performance Analysis of the Low-Temperature Solar-Boosted Power Generation System—Part I: Comparison Between Kalina Solar System and Rankine Solar System

[+] Author and Article Information
Faming Sun

Ritsumeikan Global Innovation
Research Organization,
Ritsumeikan University,
Kyoto 603-8577, Japan;
Institute of Ocean Energy,
Saga University,
1-Honjo machi, Saga 840-8502
e-mail: sunfamingjia@gmail.com

Yasuyuki Ikegami

e-mail: ikegami@ioes.saga-u.ac.jp

Hirofumi Arima

e-mail: arima@ioes.saga-u.ac.jp
Institute of Ocean Energy,
Saga University,
1-Honjo machi, Saga 840-8502

Weisheng Zhou

College of Policy Science,
Ritsumeikan University,
Kyoto 603-8577, Japan
e-mail: zhou@sps.ritsumei.ac.jp

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received March 31, 2011; final manuscript received May 2, 2012; published online October 2, 2012. Assoc. Editor: Manuel Romero Alvarez.

J. Sol. Energy Eng 135(1), 011006 (Oct 02, 2012) (11 pages) Paper No: SOL-11-1086; doi: 10.1115/1.4007495 History: Received March 31, 2011; Revised May 02, 2012

On the base of the two classical thermodynamic cycles (Kalina cycle and Rankine cycle), solar-boosted Kalina system (Kalina solar system) and solar-boosted Rankine system (Rankine solar system) with traditional nonconcentrating flat plate solar collector (FPSC) and evacuated tube solar collector (ETSC) are investigated in the present paper. The proposed solar systems are considered to be the hybrid of power generation subcycle and solar collector subcycle. Their electricity generating performances are compared under their respective optimal operating conditions to clarify which one is more competitive in solar utilization. Results show that ETSC is the better choice for the both solar systems. Further, the performance comparison shows that the low-temperature solar energy utilized in Kalina cycle is predominant to generate electricity. Meanwhile, the study also find that mass flow rate of the power generation subcycle, mass flow rate of the solar collector subcycle, mass fraction of ammonia and the regenerator performance are important operational parameters for high performance of the Kalina solar system. Finally, with the aid of the weather conditions of Kumejima Island in Japan, the perceptual knowledge for Kalina solar system by using an application case is shown in the paper.

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References

Figures

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Fig. 1

Sketch of the Kalina solar system

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Fig. 2

Sketch of the Rankine solar system

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Fig. 3

Flow chart of Kalina solar system

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Fig. 4

Flow chart of Rankine solar system

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Fig. 5

Relationship between m·wf and ηk,pgc under the condition of Table 1 with different Q·se

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Fig. 6

Relationship between m·wf and ηk,pgc at Q·se=150 (kW) with different (UA/Q·)rg

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Fig. 7

Relationship between m·wf and ηk,pgc at Q·se=150 (kW) and (UA/Q·)rg=0.05 (1/°C) with different y5

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Fig. 8

Relationship between m·wf and ηr,pgc with different Q·se

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Fig. 9

Relationship between m·wf and ηpgc under the initial condition of Table 6

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Fig. 10

Relationship between m·wf and ηk,ss under the condition of Table 6 with different m·k,scc

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Fig. 11

Relationship between m·wf and ηr,ss under the condition of Table 6 with different m·r,scc

Tables

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