Peltier and dynamo operated cellphone charger Jefferson B. Timtiman... [et. al]

Thesis Bachelor of Technology major in Electrical Technology University of Rizal System-Morong. 2018

EXECUTIVE SUMMARY: The study aimed to design and develop a peltier and dynamo operated cellphone charger specifically it sought to perform try out and revision; determine the level of acceptability of the developed device in terms of design, functionality, safety and maintenance; test the significant difference on the evaluation of the responds and determine the level of the performance of the developed device in terms of amount of charge per minute and voltage output. There were twenty (20) respondents of the study who evaluated the developed charger compared to an existing cellphone charge they evaluate device in terms of design, functionality, safety and maintenance. The result was statistically treated using qualitative description, weighted mean and dependent t-test. Based on the analysis of data gathered, on the development of peltier and dynamo operated cellphone charger it was found that it can be constructed out of locally available materials found in may electrical and electronics shops. It was tested and found operational after a series of experimentation. Through try-out and revisions made, the objectives of study was attained and reached the functional output of the project. The evaluation made by the respondents revealed that in terms of design, functionality, safety and maintenance, all are extremely accepted. On the significant difference on the evaluation of the respondents in terms of design, functionality, safety and maintenance, got a computed t-value which is less than tabulated t-value, therefore the null hypothesis is accepted thus there is no significant difference. On the level of performance developed device with respect to amount of charge per minute and voltage out consumed per hour are found to be effective. Based on the findings, the researchers concluded that there is no significant difference on the evaluation made by the respondents on the developed device in terms of design, functionality, safety and maintenance, therefore the null hypothesis is accepted. Based on the findings and conclusions, it was recommended that the chassis should be made smaller and presentable; proper placement of component and wirings should be considered; and last, further studied should be conducted to improve the device.