THERMAL SCIENCE

International Scientific Journal

Chao Luo

,

Hongmei Yin

,

Jun Zhao

,

Qingsong An

,

Yulie Gong

THE STEADY THERMODYNAMICS OF A FLASH-BINARY GEOTHERMAL POWER SYSTEM BASED ON CORRECTION MODELS VALIDATED BY STATIC TESTS

ABSTRACT
The operation parameters and performance of a flash-binary power system are analyzed based on four scenarios of the experiment (Exp), optimum design (OD), error correction model 1 (ECM1) and error correction model 2 (ECM2). The operation parameters of a flash-binary power system are tested to explain steady in the experiment with heat source temperature ranges from 100°C to 150°C. The results show that the simulation data of error correction model 2 have a good agreement with the experiment and most parameter values of relative error δ are less than 5%. The expander with low isotropic efficiency results in the largest exergy losses in the flashbinary power system. The flash-binary power system has better performance to adapt to the mid-high temperature geothermal resource in China. Some valuable data obtained from the research can be applied in the future power plant construction in China's southern Tibet, western Yunnan and Sichuan.
KEYWORDS
mid-high geothermal resource, flash-binary system, steady and thermodynamics, exergy losses
PAPER SUBMITTED: 2019-04-12
PAPER REVISED: 2019-04-25
PAPER ACCEPTED: 2019-05-08
PUBLISHED ONLINE: 2019-05-12
DOI REFERENCE: https://doi.org/10.2298/TSCI190412173L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2020, VOLUME 24, ISSUE Issue 2, PAGES [925 - 938]
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The steady thermodynamics of a flash-binary geothermal power system based on correction models validated by static tests

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