O. V. Ekechukwu

Study on the Comparison of the Performance of a Glazed Transpired Collector and a Glazed Non-transpired Collector with Chimney in Natural Convection Mode

M. Ekoja, S. O. Onyegegbu & O. V. Ekechukwu · Journal of Energy Research and Reviews · 2026

Studies have shown that the glazed transpired solar collector (GTC) with a chimney has efficiencies higher than those obtained from a typical glazed non-transpired solar collector (GNTC) in natural convection mode. However, there has not been a direct comparison of the performanc...

Open access Research Article 10.9734/jenrr/2026/v18i8531

Heat Transfer Coefficient for a Glazed Transpired Solar Collector in Natural Convection Mode

M. Ekoja, S. O. Onyegegbu & O. V. Ekechukwu · Journal of Energy Research and Reviews · 2023

A glazed transpired solar collector (GTC) was set up to operate in natural convection mode. Collector air temperature and velocity were measured at specific points in the collector. Solar radiation, ambient temperature, collector cover glass and absorber temperature were also mea...

Open access Research Article 10.9734/jenrr/2023/v15i1300

A Review of Advances on Natural Dye Sensitized Solar Cells (NDSSCs)

K. P. Alor, B. A. Ezekoye, P. E. Ugwuoke, S. U. Offiah, F. I. Ezema, S. Akor, I. F. Okafor & O. V. Ekechukwu · Journal of Engineering Research and Reports · 2023

Currently, the situation of the economy is drastically affecting the growth and development of some growing nations with regard to the energy sector. Most developing countries still depend majorly on fossil fuels. Considering the environmental nuisance arising from the dangerous...

Open access Research Article 10.9734/jerr/2023/v25i101008