Product-specific manufacturing energy consumption

Abstract

The thesis is a commissioned work by ABB Oy Wiring Accessories. The factory has recently installed energy meters on the electrical lines for the injection molding machines and the task is to examine the energy consumption according to product during manufacturing. The goal is to develop a way to measure energy consumption according to the product being manufactured. The purpose of the work is to be able to compare the energy consumption of the different products and to make it possible in the future to estimate the energy consumption during the production. Through quantitative research, I have analyzed, processed, and calculated all the data collected. With the help of various computer programs such as Excel, enerkey and the company's internal programs, it was possible to create an Excel table that can calculate the energy consumption productively with the help of all the necessary data. With the help of results from the Excel calculations, it is possible to compare energy consumption by product and find recommendations. The results shows that when the production time is inefficient, it has a negative impact on the energy consumption per part manufactured. A part of this thesis results is the Excel table that calculates the energy consumption. A comparison between an older and a newer production line that manufactures the same product has been made, where results shows that the newer line energy efficient. This work contains my own recommendations for the company based on what I have managed to analyze from the results in the Excel table. In this degree project, the goal and purpose have been achieved and the company will benefit from this work in the future.