Author Archives: Harry Valentine

Future Options to Store Energy near Cape Town’s City Centre

Electric power arrived at Cape Town around 1900 with the construction of a coal-fired, steam-driven power station located near the Victoria and Alfred dockyard area. The location offered 2-advantages in that the power station was close to the unloading area of coal ships that could sail from Durban. The second advantage was that close proximity to the sea allowed for seawater cooling of the exhaust-steam condensers. For several years, City of Cape Town owned that power station that closed in 1965 and ended electric trolleybus operation in the city. read more

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An Option for Energy Efficiency and Water Production at Cape Town

Summary:

The thermal capacity of seawater off Cape Town’s coast can be applied to reduce the energy consumption of commercial scale refrigerators and air-conditioners as well as sustain the energy efficient operation of refrigeration-based technology that extracts potable water from humid air. read more

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Maputo Could Be a Mega-Ship Port

The Port of Maputo in Mozambique has excellent development potential. It is located along the east coast of Southern Africa, to the north of the Ports of Durban and Richards Bay. It is one of several ports that connect via road and railway line to South Africa’s mega-metropolis of Johannesburg that is still Africa’s leading financial hub. read more

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Super-Wide Rail Cars Could Boost Port Transfers

The majority of maritime ports worldwide offer the option of intermodal transfer of containers between maritime and railway transportation, and at some ports, the port railway may serve as the means by which to undertake ship-to-ship transfers of containers. read more

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Prospects for Economical Fast Transportation across Africa

A unique transportation technology that can offer fast travel durations at competitive prices is being developed in such countries as South Korea, Malaysia, Singapore, Australia and China. The International Maritime Organization (IMO) classifies the technology as a boat, except that it resembles an aircraft due to its central fuselage and presence of wings. However, commercial aircraft wings are designed to generate a powerful vacuum effect on the top side at high forward speeds, when the aircraft lifts off into the sky. The aircraft look-alike generates zero vacuum effect on the top side of the wings at any speed. read more

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A Trans-African Inland Waterway and Canal Transportation System

The Nile River has been navigable since the time of the pharaohs some 4,000-years ago, while sections of the Niger, Benue, Congo and Zambezi Rivers have also been navigable. While Cecil John Rhodes sought to build a north – south Cape-to-Cairo railway line, African railway networks remain regional with the own distinctive railway gauge. Paced road networks are to be found in major cities and in certain regions, with a network of unpaved roads offering most of the continent’s long distance connections for the truck transport industry. Trucks carry most of Africa’s long-distance freight. read more

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