Vol. 30 No. 2 (2019): Journal of Energy in Southern Africa. May

Published: 2019-06-24

Articles

The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Semakula Maroa, Freddie Inambao

1-13
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Positioning South Africa’s energy supply mix internationally Comparative and policy review analysis

Vanessa Ndlovu, Roula Inglesi-Lotz

14-27
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Introduction of household biogas digesters in rural farming households of the Maluti-a-Phofung municipality, South Africa

K.M. Nape, P. Magama, M.E. Moeletsi, M.I. Tongwane, P.M. Nakana, V.K. Mliswa, M. Motsepe, S. Madikiza

28-37
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Non-linear multivariate models for the estimation of global solar radiation received across five cities in South Africa

Tamara Rosemary Govindasamy, Naven Chetty

38-51
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A systematic decision support system to objectively evaluate retrospective energy efficiency modelling options

L.A Botes, W. Booysen, M.J. Mathews, M. Kleingeld

52-63
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Special Energy News

SAWEA's WindAc 2019 Conference Editorial

Mokone J Roberts; Greg Landwehr

1
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Using normalised cross correlation and variance to determine the source of voltage unbalance exceedances in Eskom networks with wind farms

N. Ntsadu

64-79
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Power system inertia in an inverter-dominated network

Mpeli Rampokanyo, Pamela Ijumba-Kamera

80-86
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Stress validation of finite element model of a small-scale wind turbine blade

Tolulope Babawarun, Wei Hua Ho, Harry Ngwangwa

87-97
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Assessing the value of improved variable renewable energy forecasting accuracy in the South African power system

J. Wright, G. Landwehr, E. Chartan

98-109
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Potentials of locally manufactured wound-field flux switching wind generator in South Africa

Udochukwu B. Akuru, Maarten J. Kamper

110-117
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Wind capacity factor calculator

H. Kekana, G. Landwehr

118-125
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Clustering of wind resource data for the South African renewable energy development zones

Chantelle Y. Janse van Vuuren, Hendrik J. Vermeulen

126-143
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Alternatives for small, medium and micro scale enterprises participation in the renewable energy industry – small scale embedded generation review

E. Mkhwebane, N. Ntuli

144-151
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