Evaluation of performance energy collection using five types of solar flat plate collector

Solar radiation is emitted from the sun and collected on the surface of the earth by solar collectors. Solar energy can be transformed into useful energy in the structure of thermal power. One of the foremosteconomic always is to reapheat by exploitationsolar Flat Plate Collector (FPC). The solar collector's function is to heat water from the atmosphere. Heated water can be used for domestic and industrial uses, etc. The types of FPCs involved in this study are, for the colour’s FPC (black collector versus white collector), material’s FPC (copper collector versus polypropylene collector) and glazing’s FPC (double glazing collector versus single glazing collector) by using the Energy Solar Trainer. The present work is aimed to predict the performance of FPC tested for three different days with different types of FPC using an application of water heating The sky was almost clear with an ambient temperature in the range 20o C-36.2o C. Readings are collected from 9.00 a.m. to 5.00 p.m. with the solar radiation intensity, I = 722 W/m2 and flow rate fixed at 2 Lm-1. The result shows that the efficiency of FPCs (colour, material and glazing), the colour’s FPC, and black collector is higher than white collector. While for material’s FPC, copper collector is higher than polypropylene collector. For the glazing’s FPC, double glazing collector is higher than single collector. For the overall FPCs efficiency, double glazing collector is the highest compared to others FPC

Assessment of energy saving potential and lighting system in teaching building

Energy consumption and the potential for energy savings had become more intensive in public buildings in order to improve energy performance. This case study was identified the current occupancy, lighting use patterns and lighting performance in G3 Block B teaching building where most of the teaching rooms were located in University Tun Hussein Onn Malaysia. In order to determine the energy saving potential and strategies for lighting system in the building, a series of data collection were conducted to the effects of occupancy and lighting use patterns to display the lighting energy consumption and lighting energy waste of the case study building. The findings of this study displayed lighting use patterns varied among all the investigated lecture rooms at which 31% of lighting load was wasted and 13% of lighting load misused by the building users were recorded. Moreover, the result of lighting performance of the lecture room obtained was met the recommended average illuminance level (300-500 lux) of lighting for working interiors as classroom in MS 1525:2007. In addition, the perception, awareness and practices of energy conservation behavior on lighting of the building user were also studied through structured questionnaire. With regard to the findings of questionnaire in this study, the responses indicated that most of the respondents agreed they were at good perception, awareness and practices on their energy conservation behavior on lighting. Based on the various data obtained in this project, the energy and cost saving potential strategies were suggested for instances the structural energy conservation measures and non-structural energy conservation measures to improve the usage and efficiency of the lighting system in the teaching building towards energy conservation