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Performance of a solar air heater incorporating thermal storage
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: In the present study, research was conducted to determine the
feasibility of water energy storage through which the output of
heated air by an upward facing solar air heater could be prolonged.
Following ...
A numerical investigation of the plenum chamber aerodynamic behaviour of mechanical draught air-cooled heat exchangers
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: The primary purpose of this dissertation is to further the understanding of the influence of
plenum chamber aerodynamic behaviour on mechanical draught air-cooled heat exchanger
(ACHE) performance. The ...
Prediction of the temperature distribution in asphalt pavement samples
(Stellenbosch : Stellenbosch University, 2005-04)
ENGLISH ABSTRACT: The convection heat transfer coefficient between an infinite, horizontal surface and the natural
environment is determined experimentally. It is shown that, during daytime, heat is
transferred due to ...
A finite volume method for the analysis of the thermo-flow field of a solar chimney collector
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: This study investigates the implementation of the finite volume numerical
method applicable to non-orthogonal control volumes and the application of
the method to calculate the thermo-flow field within ...
Inlet manifold tests and performance evaluation of dephlegmators in air-cooled steam condensers
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: Measurements on air-cooled reflux steam condensers or dephlegmators at different
power plants have shown that sections of these units do not transfer heat effectively
over a range of operating conditions. ...
Flow through a solar chimney power plant collector-to-chimney transition section
(Stellenbosch : Stellenbosch University, 2004-12)
ENGLISH ABSTRACT: One of the areas of the fluid dynamic design of solar chimney power plants that has
not been investigated sufficiently is the collector-to-chimney transition section of a
single turbine layout. The ...
Evaluation of natural draught wet-cooling tower performance uncertainties
(Stellenbosch : Stellenbosch University, 2007-03)
ENGLISH ABSTRACT: A natural draught wet-cooling tower (NDWCT) was modelled using the Merkel method with an
improved energy equation as recommended by Kloppers and Kroger (2005a) - referred to as the
Improved Merkel ...
Performance evaluation of a solar chimney power plant
(Stellenbosch : University of Stellenbosch, 2000-12)
A solar chimney power plant consists of a central chimney that is surrounded by a
transparent canopy located a few meters above ground level. The ground beneath
this canopy or collector as it is known is heated by the ...
A critical evaluation and refinement of the performance prediction of wet-cooling towers
(Stellenbosch : University of Stellenbosch, 2003-12)
The thermal performance prediction of wet-cooling towers is critically analyzed and refined. Natural draft
counterflow towers and mechanical draft counterflow and crossflow towers are considered. The Merkel,
Poppe and ...
Thermal charcteristics of a greenhouse for aquaculture
(Stellenbosch : University of Stellenbosch, 2006-03)
Successful housing and breeding of exotic animals or plants often requires an environment that is quite different to the ambient conditions present. The current study approached the problem of sub-optimal water temperatures ...