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This study was undertaken to compare the economic viability in Johannesburg, R.S.A., of vertical ground-source and air-source systems. Capital costs and optimum borehole length of the ground system were determined. Monthly heating and cooling capacities, and COPs were evaluated to determine running costs. Payback periods, net present values and internal rates of return were computed. The vertical...
Hot-water consumption for apartments in the developed and developing communities of Johannesburg has been determined by measurements over a period of one year. The results of the average consumption per person per day are presented for the different months of a year. Also given are, hourly hot-water consumption per person per day for summer weekdays, summer weekends, winter weekdays and winter weekends.
Hot water consumption in traditional houses in the developing communities of Johannesburg is determined by means of measurements over a period of one year. The consumption per person per day is presented for the different months of a year. Also, hourly hot water consumption per person per day is presented as a function of summer weekdays, summer weekends, winter weekdays and winter weekends. Results...
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