Coronavirus (COVID-19) pandemics has spread rapidly around the world, sending millions of people into quarantine and lockdown. Based on that, the management of higher educational institutions had to use Internet technology in teaching as the only option to continue all the academic activities across all higher education institution worldwide. This paper aims to investigate how engineering students are coping with the e-learning methods adopted by Al-Zaytoonah University of Jordan during the pandemic. A total of 470 have participated in this study from the faculty of engineering and technology at Al-Zaytoonah University of Jordan. From the findings of the survey, it was clear that students are satisfied with the online teaching and learning instituted by Al-Zaytoonah University of Jordan, despite few identified challenges.

Solar intensity and surface temperatures have a major impact on the performance of solar photovoltaic modules. Light spectrum has different wavelengths, and energy levels where each of them can affect the solar panel differently. The goal of this study is to investigate the effect of color filters and thermal insulating Nano films on the solar panel output characteristics. Two indoor experiments were conducted where four color filters and three types of insulating Nano films were tested on a photovoltaic module. The results showed that red color filters and Nano films, with a blocking rate of 20%, generated more electrical power than other solar filters. The results also showed that the surface temperature of the photovoltaic module was significantly decreased by applying certain color and Nano film filters. This research aims to improve the overall performance of the solar cell by controlling the solar intensity and decreasing the surface temperature through applying color and Nano film filters.

Solar thermal energy storage improves the practicality and efficiency of solar systems for space heating by addressing the intermittent nature of solar radiation, leading to enhanced energy utilization, cost reduction, and a more sustainable and environmentally friendly approach to meeting heating needs in residential, commercial, and industrial settings. In this study, an indoor experimental setup was employed to investigate the impact of a water-based Al₂O₃ nanofluid on the storage capacity of a flat plate solar collector under varying flow rates of the heat transfer fluid. The nanofluid, introduced at specific concentrations, was incorporated into a water-contained storage tank through which the hot heat transfer fluid circulated within a heat exchanger. This process resulted in the storage of thermal energy for future applications. The research identified that the optimal flow rate of the heat transfer fluid, corresponding to the maximum storage temperature, was 15 L per hour, and the ideal nanofluid concentration, associated with the maximum specific heat capacity of the storage medium, was 0.6%. Furthermore, the introduction of nanoparticles into the storage tank led to a significant increase in the specific heat of the water, reaching a maximum of 19% from 4.18 to 5.65 kJ/(kg·°C).