Decentralized energy supply possibilities based on biomass

Abstract

A possible solution to the energy supply in the future can be the increasing use of renewable energy sources. Significant increase in usage of biomass for energy supply can be achieved only by means of promoting small power rate biomass fired systems. In these systems the efficiency of total energy supply can reach the value of 85-90%. For the above-mentioned demands and according to statements for biomass utilization two model systems have been worked out. These are planned systems which apply existing solutions, but some new equipments have to be developed which integrate some existing methods. Developing the construction of the above mentioned systems, our main aim was to reach reasonable installation cost at high total energy utilization ratio. The electricity generation possibility is important, but the efficiency of electricity generation itself is not considered all-important. The turbine is one of the most important equipment which reduces the pressure of steam, meanwhile gives mechanical power at the turbine shaft. The applied equipment has plain and robust construction, which can be produced in serial production, and can be operated with little maintenance and without permanent attendance. The turbine which suits the above-mentioned demands best is the multiple disk type bladeless turbine. The construction of this turbine makes it suitable for the above-mentioned purposes. The investigated two systems can be applied in both well developed urban and less developed rural areas. The application of these types of systems will help to develop a sustainable energy supply system, and reduce environmental pollution.