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Dr. Remon lapisa
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INDONESIA
INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Published by Universitas Negeri Padang
ISSN : 14113414     EISSN : 25499815     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Transportation
INVOTEK: Jurnal Inovasi Vokasional dan Teknologi is a double blind peer-reviewed journal for Technical, Vocasional, Education and Training (VET) related research. This journal provides full open access to its content on the principle that making research freely available to the science community and the public supports a greater global exchange of knowledge and the further development of expertise in the field of Vocational Education and Training (understood in a wide sense and also known as e.g. TVET Technical Vocational Education and Training, Professional Education and Training, Career and Technical Education, Workforce Education).
Arjuna Subject : Umum - Umum
Articles 2 Documents
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Search results for , issue "Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi" : 2 Documents clear
Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System I Gede Artha Negara; Daud Simon Anakottapary; Luh Putu Ike Midiani; I Wayan Temaja; I Dewa Made Cipta Santosa
invotek Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i2.1105

Abstract

Recent advancements in air conditioning (AC) technologies, such as inverters, enable the compressor to remain activated despite reaching the setpoint temperature. This study investigates the cooling performance and electrical parameters of a split inverter AC system controlled by a microcontroller in order to determine the operational performance characteristics of the air conditioning system. An ATmega 2560 microcontroller integrated with PZEM, DS18B20, and LCD I2C sensors monitors was 8,525 Btu/h capacity split inverter AC. During a 1-hour experimental run, the temperature differential between supply air (Tsupply) and return air (Treturn) stabilized at approximately 17 °C, with Tsupply reaching a minimum of 8.5 °C. Treturn remained relatively constant after 500 s with no fluctuations. Moreover, power draw maintained an average of 750 W (1 PK) with no variations, exhibiting an inverse relationship with Tsupply. The maximum energy consumption recorded during the experiment was 1,373 kWh. As expected based on fundamental thermodynamic principles, the energy usage showed a direct proportional relationship with the total runtime of the system. That is, the longer the AC system was engaged, the higher the total energy required to maintain the cooling effect. Overall, microcontroller-based split inverter AC enables real-time performance monitoring and efficient operation, representing a promising technology.
Management and Evaluation of Vocational Training Programs at the Ponorogo Regency Vocational Training Center (VTC) Martha Alaska; Didik Nurhadi; Achmad Romadin
invotek Vol 23 No 2 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i2.1114

Abstract

The issue of employment and a decent living is crucial. This is complicated by developing an increasingly global world with increasingly fierce competition. Training is a factor in the development of Human Resources (HR). The success of an activity program depends on the management and evaluation results of the training program. This research aims to analyze the management and evaluation of the Ponorogo Regency Vocational Training Center. This research was a descriptive study with a qualitative approach using observation, interviews, and documentation. The information is obtained first, then used sources and techniques to triangulate it before being presented for discussion. The results of this study stated that training management at the Vocational Training Center (VTC) includes: the training process at the Vocational Training Center (VTC) covers planning, organization, implementation, and evaluation. The evaluation results show that the training met all requirements and needs (antecedents phase), was effectively implemented (transaction phase), and produced good average test results for trainees (outcomes phase). This indicates the VTC's commitment to providing quality training with successful outcomes.

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