Design of the First Chinese 1 MW Solar-Power Tower Demonstration Plant

  • Han W
  • Hongguang J
  • Jianfeng S
 et al. 
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Abstract

This article presents thermodynamic performance of a solar-power tower
plant, DAHAN, which is constructed in Beijing as the first Chinese
solar-power tower demonstration plant. Different from the existing
solar-power tower plant, the DAHAN configuration includes a two stage
thermal-energy storage system consisting of a high-temperature oil
accumulator and a low-temperature steam accumulator. The sensible heat
and latent heat of steam are stored in the high-and low-temperature
accumulators, respectively. The new plant is designed in such a way that
during the operation the receiver can be connected to a steam turbine or
energy storage system. Software that simulates the performance of the
plant has been developed and the thermodynamic performance of the plant
was investigated. The results show that the annual thermal efficiency
from solar to power of the plant can reach 8.35%. The annual efficiency
of plant can be increased by 0.65 percentage points at the optimal
condition. The results provide a better understanding for the design and
operation of solar-power tower plant.

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Authors

  • Wei Han

  • Jin Hongguang

  • Su Jianfeng

  • Lin Rumou

  • Wang Zhifeng

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