Abstract
<p class="TTPAbstract">Solar updraft power generator (SUPG) is a renewable energy facility capable of harnessing the solar energy. The first large prototype of SUPG was built in 1980’s in Manzanares, Spain to evaluate the projected performance of the facility and to serve as verification tools for future power simulator development. In this paper, the performance of a solar updraft power generator is assessed using the developed mathematical model. The model is validated by comparison with experimental data of Manzanares SUPG. The validated model is then used to calculate the amount of energy produced in seven selected locations in Indonesia. The selected cities in Indonesia exhibited a higher average monthly energy production compared to those in Manzanares. In particular a site like Kupang, would generate two times the energy of the Manzanares SUPG. The power production is sufficient for the needs of this isolated area in Indonesia and has the potential to solve the energy issue.</p>
Highlights
A solar updraft power generator consists of three main parts which are solar collector, solar tower and wind turbine
When solar radiation arrived at the surface of the solar collector, part of it is absorbed by the ground under the solar collector and most of the solar radiation is transmitted to the down layer of the ground
We investigate the performance of a solar updraft power generator expected to provide the remote regions in Indonesia with electric power
Summary
A solar updraft power generator consists of three main parts which are solar collector, solar tower and wind turbine. The absorbed solar radiation is transferred in form of heat flux to the airflow via convection process and to the down layer of the ground through conduction process These mechanisms create the differences in the properties of airflow such as pressure, density, and temperature, between the inside and the outside of SUPG system. Much effort have been devoted to improve its efficiency such as adding thermal storage equipment [3,4], studying the influence of geometry to the power production [5,6,7], or modifying the design of the SUPG [8,9,10] With this reason, we investigate the performance of a solar updraft power generator expected to provide the remote regions in Indonesia with electric power. The physical parameters of a solar updraft power generator were determined by using the numerical simulation
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