ENERGY AUDIT FOR A STEAM PLANT (CASE STUDY PYRETHRUM FACTORY IN NAKURU, KENYA)

Ndugi D.S. , Ndiema C.K.W., Omwando T. , Osore, E. A. , Yegon, E.

Abstract: Energy conservation is an essential step towards overcoming the mounting problems of global energy crisis and related environmental issues. Energy Management is considered the key to effective energy conservation. Present study is dealing with developing an “Energy Management System”, and implementing it in a real situation. A program was established as a continues improvement cycle. It started with formation of an energy management team, data collection, monitoring reports and audits. Hence the performance of a process plant can be improved by monitoring, analysis and adjustment of the appropriate plant operating parameters and in some cases, plant modifications. This involves studies of plant energy distribution and the corresponding losses associated with the various uses of energy, the scope and duration of a study my vary depending on the complexity of a plant and various operational requirements and constraints. Energy auditing has been established as useful tool for identifying energy wastage and opportunities for energy saving in a process industry. Heat recovery system is recommended for installation by retrofitting into existing plant in addition to other good housekeeping measures. Pyrethrum processing can be made profitable if energy losses are minimized. From the energy audit, it is possible for plant managers to differentiate the immediate energy saving potentials from those requiring requiring either some investments or further studies. This paper outlines the methodology and the scope for carrying out an energy audit with the main objective of improving the overall plant energy efficiency. The procedure included plant familiarization, data collection and parameter measurement, analysis of energy consumption and losses in the various sections of a steam plant and recommendation for remedial measures