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Fahrurrozi Fahrurrozi
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An Experimental Study of Conduction Heat Transfer Using Phase Change Material Ice Bag Gel in Bricks Govari, Muhammad Khoirul; Iwan, Muhammad; Irawan, Doddy; Gunarto Gunarto; Fuazen Fuazen; Fahrezi, Dian; Fahrurrozi Fahrurrozi
International Journal of Industrial Innovation and Mechanical Engineering Vol. 2 No. 4 (2025): November: International Journal of Industrial Innovation and Mechanical Enginee
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijiime.v2i1.122

Abstract

This experiment investigates the heat transfer characteristics of an ice bag gel phase change material (PCM) incorporated within bricks. The study seeks to investigate the performance of ice bag gel as PCM in improving thermal behavior of building material. The experiment consisted of subjecting brick samples with and without ice bag gel PCM to thermal cycles in a semi-automated laboratory setup. The results indicate that ice bag gel PCM incorporated in bricks exhibited minimal changes and better heat transfer as compared to the dry bricks. It was observed that the ice bag gel PCM registered lower peak temperature and slower rates of temperature drop which means their heat storage and release characteristics were efficient. Furthermore, the ice bag gel system produced a steady radiation flux, indicating that it was able to minimize the effects of temperature variations. These results imply that ice bag gel PCM has the potential to be a green and economical option for enhancing thermal comfort and decrease energy consumption in buildings.
The Effects of Knowledge Sharing and Work Motivation on Work Productivity at PT Balagi Fahrurrozi Fahrurrozi; Tirta Gunawan; Wiwi Widiyawati; Lisa Harry Sulistiyowati
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 3 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i3.7292

Abstract

Human resource management plays an important role in increasing employee productivity and achieving corporate goals. In the age of globalization and increasing competition, companies are forced to improve their efficiency and operational performance. This study examines the effects of knowledge sharing and work motivation on productivity at PT Balagi Rotan. It shows that these two factors have a significant impact on productivity. Knowledge sharing, the exchange of knowledge between individuals, increases operational efficiency and innovation within the company, although it is often hampered by cultural barriers and mutual distrust. At the same time, high work motivation can inspire employees to perform better and enhance their performance. This study uses a quantitative method with a descriptive approach and includes a sample of 150 employees from a population of 150. The results of the statistical tests show that these two variables, namely knowledge sharing and work motivation, have a significant impact on productivity. These findings enable companies to develop more effective strategies to overcome production delays and improve overall operational performance.
Co-Authors Ady Supryadi Agus Sukirno Amirah Muhammad Umar Arsan Shanie Asep Furqonuddin Doddy Irawan Edi Yanto Eko Julianto Fahrezi, Dian Farida Isroani Fitri Atikaputri Fuazen Govari, Muhammad Khoirul Gunarto Gunarto Hawwa Nasywa Aqillah Iwan, Muhammad Juliyani Juliyani Miftahudin . Muhamad Romadhon Munawir Sazali Muniri Muniri Nurlaela Nurlaela Nurlaela Nurlaela Nurul Fitri Sari PUSPITA LISDIYANTI Rena Aminwara Sairun Sairun Setiawan Setiawan Shanti Ratnakomala Sulistiyowati, Lisa Harry Suryani Suryani Sutiarso Sutiarso Tirta Gunawan Ulfa Ulfa Wiwi Widiyawati Yofita Sari Zulela Ms