Low-cost houses in South Africa are characterized by poor craftsmanship and design with no regard to energy efficient passive solar design features resulting in high electrical energy consumption, uncomfortable indoor thermal environment and poor ventilation efficiency. Incorporating energy...

Evaporative cooling is an energy efficient and environmentally friendly air conditioning technology. Research and application of evaporative cooling in China have been very fruitful; however, they were little known to the world because most of works were published in Chinese. Therefore, this...

This paper presents the typical evaporative cooling air conditioning systems used in China, including all-air central evaporative cooling systems, air–water semi-central evaporative cooling systems and hybrid desiccant dehumidification and evaporative cooling systems. Their environmental...

The European Union has introduced a directive with the aim to reduce primary energy production. With 40% of energy consumption connected to buildings there is a particular need of understanding the energy consumption profile and determine measures to achieve the agreed targets. Swimming...

Experiments were performed on natural convection heat transfer from circular pin fin heat sinks subject to the influence of its geometry, heat flux and orientation. The geometric dependence of heat dissipation from heat sinks of widely spaced solid and hollow/perforated circular pin fins with...

This paper focuses on role oriented modelling and does so by outlining what it is and how it can be applied. This paper attempts to build a basis of a structured way of thinking, working, modelling, and implementation of roles. It endeavours to provide a standardized terminology, build common...

Scheduling jobs in computational Grids is considered as NP-complete problem owing to the heterogeneity of shared resources. The resources belong to many distributed administrative domains that enforce various management policies. Therefore, the use of meta-heuristics are more appropriate option...

Cloud computing is the latest in distributed computing technology. The delivery mechanism between the service provider and users depends on Service Level Agreement (SLA). SLA contains Quality of Service (QoS), which has some constraints such as deadline to achieve user satisfaction. In this...

Grid computing has been used as a new paradigm for solving large and complex scientific problems using resource sharing mechanism through many distributed administrative domains. One of the most challenging issues in computational Grid is efficient scheduling of jobs, because of distributed...