EVALUATION OF ENERGY-EFFICIENCY IN LIGHTING SYSTEMS FOR PUBLIC BUILDINGS

Peter Olabisi Oluseyi,Samuel A Isaac,Tolulope Olusegun Akinbulire,Oluleke O Babayomi,Olubayo Moses Babatunde,Damilola Elizabeth Babatunde,Tobiloba Emmanuel Somefun

doi:10.32479/ijeep.9905

Abstract

Adoption of energy efficiency and conservation techniques in public buildings in Nigeria is significantly low due to the ignorance of its potential benefits. Consequently, this study presents the prospects of energy saving using different methods in a public building at a Nigerian University. A proposed remodelled students’ residential hostel at the University of Lagos, Nigeria was chosen as a pilot study. This research utilized three energy efficient lighting technology alternatives namely; intelligent controlled Incandescent lamp (ICIL), compact fluorescent lamp (CFL), and intelligent controlled CFL (ICCFL) and compared with a base case of conventional incandescent lighting configuration. Energy consumption, at the proposed hostel is analysed and modelled. The effectiveness of each lighting technology alternative and base case in terms of cost is estimated using economic indices such as the net present value (NPV), savings to investment ratio (SIR) and the discounted payback period (DPP). Results show that the CFL lighting technology give 39% cost benefit as compared to ICCFL which gives 11% overall cost benefit. From the study, it is established that adoption of energy efficient lighting techniques save a significant amount of energy, operational cost, electricity bills and consequently reduce emission.

Highlights

Looking at the concept of energy conservation with a global view, it is an important topic for public to be aware of. This is because it reduces individual energy consumption and overall energy demand, which in turn can set at equilibrium the available energy supply and the increase in energy demand as well as population growth
The results point out that there is a great possibility to lessen the amount of electricity consumed by energy saving fixtures through intelligent control at the proposed hostel
Achieving this possibility would result in a considerable reduction in energy consumption compare to traditional incandescent bulbs and energy efficient bulbs without intelligent control

Summary

Introduction

Looking at the concept of energy conservation with a global view, it is an important topic for public to be aware of. This is because it reduces individual energy consumption and overall energy demand, which in turn can set at equilibrium the available energy supply and the increase in energy demand as well as population growth. Energy conservation can be realised by employing innovation and technological interventions such as responsive controls. Intelligent control achieves automation via the emulation of human intelligence. It is a multifaceted technological system, which embraces several disciplines. It is applicable to the solution of control problems such as intelligent control of electric power consumption

Objectives

Results

Conclusion