http://invotek.ppj.unp.ac.id/index.php/invotek/issue/feed 2024-06-29T15:09:45+00:00 Dr. Dori Yuvenda doriyuvenda@ft.unp.ac.id Open Journal Systems <p>INVOTEK:&nbsp;<em>Jurnal Inovasi Vokasional dan Teknologi</em>&nbsp;is a peer reviewed journal that publishes twice a year&nbsp; (April and October) on articles concerning Technical &amp; Vocational Education and Training (TVET) practices in both the formal and informal sectors and also technology field. &nbsp;It provides an academic forum and scientific research discussion for the cross-disciplinary exchange of insights and ideas regarding value and practices for dissemination. We welcome article submissions from the local and international TVET researchers and practitioners. We strongly welcome research articles and will also consider critical reviews as well as technical reports that can further our understanding of TVET issues and concerns.</p> http://invotek.ppj.unp.ac.id/index.php/invotek/article/view/1173 2024-06-29T15:09:45+00:00 Lohdy Diana lohdydiana@pens.ac.id Arrad Ghani Safitra arradgs@pens.ac.id Teguh Hady Ariwibowo teguhhady@pens.ac.id Ricko Guntur Riyantoni rickoguntur7@gmail.com Saiful Islam saifulsm002@gmail.com Muhammad Fandi Setiawan Cahyono Prasetyo fandisetiawan154@gmail.com

<p>Climate change causes the air conditions inside buildings to increase in temperature. This causes the demand for cooling processes to increase every year. The use of cooling equipment currently requires quite a lot of electricity costs and produces CO₂ emissions. The experimental study of the effect of cooling pad surface shape on passive cooling performance to produce a cooling device that is economical and environmentally friendly. The variations of the cooling pad surface were sinusoidal wave and triangular wave. The method was experiments carried out in the laboratory to control environmental conditions. The test results showed that the sinusoidal wave variation had a temperature drop of 1.1 °C lower than the triangular wave. The sinusoidal wave variation has 5%&nbsp; lower relative air humidity than triangular wave variation but air humidity for both variations had increased. Meanwhile, the use of silica sand could not reduce air humidity, it was because of the sum of sand that was used.</p>

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