FEASIBILITY STUDY OF POWER INCREASE FOR GAS ENGINE POWER PLANTS
Tiihonen, Jaakko (2014)
Kuvaus
Opinnäytetyö kokotekstinä PDF-muodossa.
Tiivistelmä
In commercial markets all companies have to seek new opportunities to make profit. In power plant business it means feeding more electricity to the national grid or other loads. One way to make power plant business more profitable is to buy more engines, but it can be quite expensive related to the benefit. Another limitation can be space if the owner doesn’t have any extra room for power plant extension. Increasing power for engines can be a good option.
The goal of the thesis work is to study feasibility of power increase in certain gas engine power plants. For the engine mechanical power increase there is already a proper design. The electrical side has not been studied in this scale. This thesis studies the following electrical components of the studied power plants: generator, cables, medium voltage switchgear and transformer. Some of the power plants have only generators in the Wärtsilä scope of supply. In these cases the study is made with the information available.
This work is a part of a business case studying how Wärtsilä could increase the custom-er’s profit in certain conditions. The results will show how much output can be increased in different power plants without any modifications or with only minor modifications.
The main result of this thesis work is that 40 percentage of the investigated installations can be modified easily to fulfill the requirements of power increase. In 12 percentage of the installations, there is no need to do any modifications for electrical hardware. Eight percentage of the cases needs major modifications. In 28 percentage there is a need for medium size modifications and in 12 percentage of the cases there was not enough data for feasibility study. In general power increase would be a good opportunity to Wärtsilä to commercialize this study for certain gas engine power plants. This could give more value to the customer and would also benefit the business of Wärtsilä.
The goal of the thesis work is to study feasibility of power increase in certain gas engine power plants. For the engine mechanical power increase there is already a proper design. The electrical side has not been studied in this scale. This thesis studies the following electrical components of the studied power plants: generator, cables, medium voltage switchgear and transformer. Some of the power plants have only generators in the Wärtsilä scope of supply. In these cases the study is made with the information available.
This work is a part of a business case studying how Wärtsilä could increase the custom-er’s profit in certain conditions. The results will show how much output can be increased in different power plants without any modifications or with only minor modifications.
The main result of this thesis work is that 40 percentage of the investigated installations can be modified easily to fulfill the requirements of power increase. In 12 percentage of the installations, there is no need to do any modifications for electrical hardware. Eight percentage of the cases needs major modifications. In 28 percentage there is a need for medium size modifications and in 12 percentage of the cases there was not enough data for feasibility study. In general power increase would be a good opportunity to Wärtsilä to commercialize this study for certain gas engine power plants. This could give more value to the customer and would also benefit the business of Wärtsilä.