Publications

Roche, D, Outhred, H & Kaye, RJ 1995, 'Analysis and control of mismatch power loss in photovoltaic arrays', Progress in Photovoltaics: Research and Applications, vol. 3, no. 2, pp. 115-127.
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AbstractConnecting photovoltaic cells to form an array can cause problems when the characteristics of the cells are not matched. This problem, known as mismatch, can reduce the power output of the array and lead to cell degradation through localized heating of individual cells. Such problems can arise simply through the shading of a single cell. In this paper, which has a substantial tutorial content, three methods of reducing the effects of mismatch are investigated and compared; the use of integral bypass diodes (IBDs), series/paralleled circuit designs and reduced cell shunt resistance.Experiments were performed on arrays incorporating cells with IBDs and their tolerance to shading was tested and compared to arrays with other cell designs. the potential benefits and costs of using IBDs are then assessed and conclusions drawn about the relative effectiveness of this strategy. the circuit design strategy known as series/paralleling is described and analysed and its effect on minimizing mismatch power loss is evaluated. Also, an expression for the optimum cell shunt resistance in a general shaded array is derived and the technique of reducing cell shunt resistance to minimize mismatch effects is assessed.

Rutovitz, J 1995, 'Are underdwellings at risk from elevated levels of radon? An examination of radon levels in 201 houses in Hebden Bridge', Journal of Radiological Protection, vol. 15, no. 1, pp. 53-66.
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Cordingley, M & Mitchell, CA 1970, 'Artificial wetlands: an intergral part of wastewater treatment and water reuse scheme for a fibreboard plant', National Conference on Wetlands for Water Quality Control, Townsville.

King, A & Mitchell, CA 1970, 'Subsurface flow artificial wetlands: design and construction at pilot scale to enable rigorous performance and analysis modelling', National Conference on Wetlands for Water Quality Control, Townsville.

Mitchell, CA 1970, 'Environmental engineering education - What should our objectives be?', National Environmental Engineering Conference, Melbourne.

Mitchell, CA, Abeysinghe, DH, Rigden, B & Shanbleh, A 1970, 'Water quality management for aquaculture', 16th Federal Convention of the Australian Water and Wastewater Association, Sydney.

Dunstan, C Independent Pricing and Regulatory Tribunal (IPART) 1995, Review of Pricing Policies of the Waste Recycling and Processing Service of NSW, Sydney.