Articles

Comparing Solar Heater Designs: Evacuated Tube Vs. Flat-Plate Collectors

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In terms of solar heater designs, this study compares the characteristics of collectors made from evacuated tubes (ETCs) as well as collectors with flat plates (FPCs). Due to their reduced heat loss, ETCs—which have individual tubes made of glass with a sealed under-vacuum double-wall design—perform exceptionally well in colder climates. FPCs, in comparison, are more affordable but less effective since they include a simpler absorbent plate that fits inside of a flat panel. These designs can be implemented using the SolidWorks software, which permits precise 3D modeling as well as simulations. According to research, ETCs are appropriate for colder locations since their vacuum insulation reduces heat loss along maintains greater temperatures. Even while radiation losses make FPCs less efficient, they are still excellent at collecting daylight energy, specifically in warmer climates. Decision-makers looking for sustainable cooling solutions might benefit from analysis that takes into account technical characteristics, financial viability, and geographical compatibility.

The Relationship between Age Groups and Perception of Online Learning

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The Coronavirus has disrupted teachings in many schools as they change from on-site learning to online learning. Although this has caused many difficulties, due to safety concerns of parents and multiple lockdown procedures, online learning is still being implemented. This led to a question of how students in different age groups perceive the benefits of online learning differently from each other. The main purpose of this study is to identify whether there is a relationship between age groups to establish direction for an opportunity to conduct future studies into the individual problems with online learning. To test this relationship, a google form was sent out as part of a cross-sectional study to online platforms, in which 253 participants from the age of 13 and above were randomly selected. To analyze the results, Statistical Product and Service Solution (SPSS) version 26 was used. The One-way ANOVA table was calculated, where it did not show any statistically significant difference between age groups in their perception of online learning (p=0.82).