Zenodo (CERN European Organization for Nuclear Research), May 31, 2023
This study assessed the level of implementation of CFCs and HCFCs Montreal Protocol by Refrigerat... more This study assessed the level of implementation of CFCs and HCFCs Montreal Protocol by Refrigeration and Air conditioning practitioners in Benue State. The population of the study comprised of 50 practitioners of refrigeration and air conditioning across the state. A descriptive survey research design was used for the study. The instrument for data collection was a structured questionnaire and data collected was analyzed using descriptive statistics to ascertain the extent to which practitioners in Benue State have implemented CFCs and HCFCs Montreal protocol. The result of the study revealed that refrigeration and air conditioning practitioners in Benue State are aware of CFCs and HCFCs effect on Ozone layer depletion but they are not able to recover and store CFC and HCFC Refrigerants from old refrigerating systems when carrying out repairs. The study recommended among others that refresher trainings should be organized for practitioners.
International Journal of Engineering, Management and Humanities, 2025
This study investigates the moisture content for Bambara groundnut (Vigna subterranea)-SB4-4C ("A... more This study investigates the moisture content for Bambara groundnut (Vigna subterranea)-SB4-4C ("Ashemkungu" or "Shangedubu"), SB9-1A ("Mumuye"), and SB1-1 ("Soyabin")varetes,to enhance post-harvest management and processing practices. Recognized for their nutritional value and adaptability to arid conditions, Bambara groundnuts are underutilized despite their potential to improve food security. Moisture content is a critical factor influencing seed quality, shelf life, and susceptibility to spoilage. Using a standardized oven drying method, moisture content was determined for each variety, revealing SB9-1A had the highest moisture content (5.25 g), followed closely by SB1-1 (5.16 g) and SB4-4C (5.15 g). Statistical analysis indicated significant differences among the varieties, emphasizing the need for tailored post-harvest handling practices. The findings underscore the importance of moisture management in optimizing the quality and marketability of Bambara groundnuts, thereby contributing to sustainable agricultural practices and food security. Recommendations include the development of standardized handling protocols, further research on moisture dynamics, and the promotion of Bambara groundnut cultivation to enhance its utilization in food systems.
International Journal of Advances in Engineering and Management, 2025
This study investigates the optimal shelling efficiency, speed, and moisture content for three va... more This study investigates the optimal shelling efficiency, speed, and moisture content for three varieties of Bambara groundnut (Vigna subterranea)—SB1-1 “Mumuye,” “Ashemkungu” or “Shangedubu,” and “Soyabin”—using a mechanical shelling machine. Given the crop's nutritional value and adaptability to sub-Saharan Africa's challenging agro-ecological conditions, efficient post-harvest processing is crucial for maximizing its economic potential. The research systematically evaluates the impact of varying moisture levels (8-10%, 12-14%, and 16-18%) and machine speeds (250, 275, and 300 RPM) on shelling performance. Results indicate that the best shelling efficiency for the Ashemkungu variety was achieved at 250 RPM with 5% moisture content, while the Soyabin variety performed optimally at 275 RPM with 7% moisture content. The Mumuye variety also showed high efficiency at 275 RPM with 7% moisture content. The findings highlight the critical role of moisture content in shelling efficiency, with higher moisture levels leading to increased seed damage. This study provides valuable insights for optimizing mechanical shelling practices, ultimately enhancing the economic viability of Bambara groundnut production and contributing to food security in the region. Recommendations include tailored shelling practices, effective moisture management, training for farmers, further research on additional variables, and policy support for mechanical shelling technologies.
This research work assessed the technical and entrepreneurship competencies acquired by Refrigera... more This research work assessed the technical and entrepreneurship competencies acquired by Refrigeration and Air-Conditioning practitioners in Benue State. The population of the study comprised of 150 practitioners out of which 80 was sampled randomly. A descriptive research design was used for the study. The instrument for data collection was a structured interview questionnaire titled refrigeration and air-conditioning practitioner competencies assessment questionnaire. Collected data were analysed using standard deviation and simple percentage to ascertain the extent to which the practitioners in Benue State have acquired entrepreneurship competencies under technical, managerial, marketing and personal attributes competencies. The Result of the study revealed that, refrigeration and air-conditioning practitioners in Benue State acquired only technical competencies to a very great extent. It was recommended among others that refrigeration and air-conditioning practitioners training institutions should include in their training; marketing, managing and personal attributes competencies. Key words: Competencies, Refrigeration, Air-conditioning, Technical, Entrepreneurship, Assessment, Practitioners.
International Journal of Innovative Science and Research Technology, 2023
This study assessed the level of implementation of CFCs and HCFCs Montreal Protocol by Refrigerat... more This study assessed the level of implementation of CFCs and HCFCs Montreal Protocol by Refrigeration and Air conditioning practitioners in Benue State. The population of the study comprised of 50 practitioners of refrigeration and air conditioning across the state. A descriptive survey research design was used for the study. The instrument for data collection was a structured questionnaire and data collected was analyzed using descriptive statistics to ascertain the extent to which practitioners in Benue State have implemented CFCs and HCFCs Montreal protocol. The result of the study revealed that refrigeration and air conditioning practitioners in Benue State are aware of CFCs and HCFCs effect on Ozone layer depletion but they are not able to recover and store CFC and HCFC Refrigerants from old refrigerating systems when carrying out repairs. The study recommended among others that refresher trainings should be organized for practitioners. Keywords-Refrigeration and Air conditioning; Practitioners; Montreal Protocol; Refrigerants I. Research Question 2: Are the refrigeration and air conditioning practitioners in Benue State able to recover CFCs and HCFCs refrigerants from old systems? The data that answer this research question is presented in table 2 below.
International Journal of Novel Research and Development, 2023
This study determined the effect of psychomotor performance scores of students of Refrigeration a... more This study determined the effect of psychomotor performance scores of students of Refrigeration and Air conditioning Work taught operational sequence and components of a refrigeration system using computer simulation teaching technique and conventional teaching method.The study adopted a pre-test, post-test quasi-experimental design. one research question and one hypothesis were formulated to guide the study. The study comprised a sample size of one hundred students. The instrument for psychomotor performance test was Operational Sequence of Refrigeration Rating Scale and data was analysed using mean, standard deviation and ANCOVA statistics. Analysis of Covariance (ANCOVA) was tested at .05 level of significance. Major finding revealed among others that real object experience group performed better than that of computer simulation teaching technique. It was also found that the difference was not significant. Based on the findings, the study recommended that computer simulation teaching technique should be incorporated in the teaching of Refrigeration and AirConditioning Work.
Journal of Technology, Industrial Studies and Science, 2022
his research work examined the impact of audiovisual instructional materials on teaching refriger... more his research work examined the impact of audiovisual instructional materials on teaching refrigeration and air conditioning concepts in technical colleges in Benue State, North Central Nigeria. The study adopted a pre-test, post-test quasiexperimental design. Two research questions and two hypotheses were formulated to guide the study. The study comprised a sample size of one hundred students. The instrument for Data College was Refrigeration and Air conditioning Trade Achievement Test and data was analysed using mean, standard deviation and t-test statistics. Major finding revealed among others that audiovisual instructional material has a significant impact on students' achievement in refrigeration and conditioning. Therefore, it was recommended among others that teachers should incorporate the use of appropriate audiovisual instructional materials when teaching their students and they should be encouraged to use audiovisual aids in order to enhance the interest of male and female students and keep them attentive in the class
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Papers by tar sesugh
Key words: Competencies, Refrigeration, Air-conditioning, Technical, Entrepreneurship, Assessment, Practitioners.