safaa alzubaidi

Today, energy shortage and carbon emission are the major challenges faced by many countries. There are many ways to save energy in every sector thereby reducing the carbon emission and global warming. Qatar, in the Middle East has shown growing demand for electricity consumption. In Qatar, the energy consumption by 2020 is expected to reach 80,648GWh and the energy consumption for lighting alone is expected to be 15,323GWh. Lighting is used in many applications and it is one of the areas that offer many opportunities for improving the energy efficiency thereby reducing the energy consumption. This paper presents a case study on energy efficient street lighting system design for the roadways in Energy City Qatar. Simulation software DIALux4.9 is used to investigate the efficient street lighting scheme through the use of different types of lamps and highlights how the concepts can be visually compared, its cost effectiveness can be studied during the design phase in order for the decisions to be made prior to its implementation. The study has concluded that forty percent reduction in the energy consumption can be achieved with the proposed street lighting system design.

Lighting for both functional and decorative purposes is a major consumer of electrical energy. Setting up new power plants to meet growing consumption requirements is not financially viable. In a country with a growing demand for energy, increased efficiency in utilizing the energy is the only way to meet the shortfall. The scope of increasing efficiency exists in the performance improvements of lighting systems, pumps and different processes in industries where engineering techniques can be used to enhance their efficiencies. This paper discusses the performance of different types of lighting installations used in the commercial buildings in UAE and saving in energy consumption in the office lighting applications. The study of different types of lamps used in practice, its suitability and cost effectiveness is highlighted. DIALux simulation software is used to study and evaluate the efficient lighting scheme for the office buildings through the use of different types of lamps.