Electricity generation from hybrid bryophillum pinnatum leaf and solar photovoltaic system

Abstract

In this thesis, we present results of studies on Pathor kuchi leaf (PKL) cell prepared from PKL(The scientific name Bryophyllum Pinnatum Leaf) sap as a source for generation of electricity. The experiments were performed with atomic Absorption Spectrometer (AAS), Ultra Violet visible Spectrometer (UV-VS) to establish the quality and quantity of electricity generation. We optimized the all to develop a cost-effective battery by modification of electrodes. The battery efficiency was calculated. We also investigated the self discharge profile of the battery and identified the emitted gas. We found that the potential and current decrease with increase of concentration of Zn2+ ions in PKL sap as well as with concentration of Cu2+ and H+ ions the change of concentration of ions was confirmed by pH measurement. The presence of secondary salt in PKL sap influences the current and potential significantly because of the presence of secondary salt. The highest efficiency of electricity was established at 40% concentration of PKL sap. We observed that Bryophyllum Pinnatum, PKL has pH 4.8 with 10% water and 4.2 without water. Investigation showed that the electricity generated with PKL sap is cheaper compared with other renewable energy sources and the conventional gas based electricity. The electrical and chemical properties of PKL electricity have been studied. The internal resistance, voltage regulation, energy efficiency, Pulse performance, discharge characteristics, temperature effect and the life cycle of PKL Cell have been recorded. Also the variation of voltage, current with variation of concentration of Zn 2+, Cu2+ ions and time have been measured. We find zinc based fertilizer as a bi-product of PKL power device, which contains hydrogen gas as well as methane gas. Variation of concentration of Zn2+ and Cu2+ ions with secondary salt, CuSO4, 5H2O, water and PKL sap have been studied. We review briefly the known manufacturer of commercial Solar Photovoltaic (SPV) and Bryophyllum Pinnatum Leaf (BPL) devices known as hybrid system. The hybrid system can achieve higher efficiency. It was shown that the electrical efficiency of BPL and SPV hybrid system is of higher efficiency. The system is analyzed with respect to the design and the electrical energy output for a hybrid construction and under the climatic condition of Bangladesh. The work gives the guide line for a new electricity generation technique through Hybrid BPL and SPV system.