Evaluation of the influence of soil thermal inertia on the performance of a solar chimney power plant

被引：41

作者：

Hurtado, F. J. ^{[1
]}

Kaiser, A. S. ^{[1
]}

Zamora, B. ^{[1
]}

机构：

[1] Univ Politecn Cartagena, Dpto Ingn Term & Fluidos, Cartagena 30202, Spain

来源：

ENERGY | 2012年 / 47卷 / 01期

关键词：

Updraft solar chimney; Thermal inertia; Turbulent convective flow; Numerical simulation; FLOW; TEMPERATURE; GENERATION; TURBINES; ENERGY; FIELD; MODEL; AIR;

D O I：

10.1016/j.energy.2012.09.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solar chimney power plants are a technology capable to generate electric energy through a wind turbine using the solar radiation as energy source: nevertheless, one of the objectives pursued since its invention is to achieve energy generation during day and night. Soil under the power plant plays an important role on the energy balance and heat transfer, due to its natural behavior as a heat storage system. The characteristics of the soil influence the ability of the solar chimney power plant to generate power continuously. Present work analyzes the thermodynamic behavior and the power output of a solar chimney power plant over a daily operation cycle taking into account the soil as a heat storage system, through a numerical modeling under non-steady conditions. The influence of the soil thermal inertia and the effects of soil compaction degree on the output power generation are studied. A sizeable increase of 10% in the output power is obtained when the soil compaction increases. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：213 / 224

页数：12

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