International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

This study examines the impact of component materials on the energy performance of solar panels designed for water heating. For this purpose, we have integrated numerical simulations and experimental analyzes enabled by algorithms developed with LabVIEW software. The primary objective of this investigation is to assess how the selection of materials in the construction of solar panels affects their overall efficiency in harnessing and converting solar energy into heat for water heating purposes. The research methodology involves the development and implementation of advanced algorithms using LabVIEW, a versatile software platform known for its proficiency in data acquisition, analysis, and control. Numerical simulations focus on modeling the behavior of solar panels under different conditions, taking into account factors such as radiation, temperature and the specific characteristics of different component materials. These simulations provide valuable assessments of theoretical aspects of solar panel performance and enable the identification of optimal material combinations. Through the physical model, experimental studies are conducted to validate the simulated results. Physical prototypes of solar panel components are built using various materials and their performance is rigorously evaluated under real-world conditions. Experimental measurements allow data collection, and enable comparative analysis with numerical simulations. The results of this study aim to contribute to the advancement of solar panel technology by providing a deeper understanding of how material choices affect energy efficiency. Moreover, the use of LabVIEW software in the development of algorithms ensures a systematic and accurate analysis of numerical and experimental data.

In this paper we have presented a framework, which proposes to adopt blockchain technology for ID card management in Albania, to increase the security and privacy of personal data. The way how the actual ID cards in Albanian tend to offer security is by using a microprocessor, encrypting the data in the card. However, the centralized data management systems have single points of failure that leave the system vulnerable to attack and operational risks such as: (1) inside hacking, where unauthorized changes of personal information may happen from the inside system; (2) fake digital identities creation or (3) sale of personal identity‟s data to third interested parties. An answer to address the above-mentioned drawbacks is a decentralized identity management system, which calls for a user-centered strategy and returns complete identification control to the individual. Blockchain technology has the potential to revolutionize modern civilizations and their applications. Administrative processes, security, privacy, integrity and confidentiality are some actions that could have an impact. Furthermore, we present an analysis of previous work on blockchain-based identity management and provide a proposal use case applicable in Albania compared to actual implementation.