This paper presents the results of a research project dealing with the development of an adjustable converter for the injection of power generated by low voltage energy sources (primarily fuel cells used for decentral cogeneration of electric and thermal energy) into the public grid. The converters principle of operation is explained; measurements demonstrate the performance of the converter in...

In this paper an optimal planning method is proposed for sizing a cogeneration plant to be installed within a public/commercial micro-grid. The optimization tool is based on a mixed integer linear programming model which uses a set of experimental input data in terms of both thermal and electric power consumption for determining the annual operational strategy, able to reach a twofold objective...

Gas-based combined heat and power (CHP) has matured enough to be regarded as the next evolutionary step in promoting energy efficiency use in the urban environment. Although its potential market is increasing, little research has been conducted into the combined technical effects that a high penetration of these units may have on both natural gas and electric (G&E) distribution networks. This p...

Photovoltaic-thermal (PVT) technology refers to the integration of a photovoltaic (PV) and a conventional solar thermal collector, representing the deep exploitation and utilization of solar energy. In this paper, we evaluate the performance of a solar PVT cogeneration system based on specific building energy demand using theoretical modeling and experimental study. Through calculation and simu...

In order to explore the comparison of coal partial gasification hydrogen-electricity cogeneration systems under different agent atmospheres, based gasification, including steam cycle power generation and syngas processing for hydrogen production, a hydrogen-electric co-production system its model semi-coke combustion are constructed, respectively using (H 2 O/O ) (CO /O as reactant gas. The eff...

In this paper, the method of rationally determining the system structure and operational strategies is proposed for the energy supply system for a hospital based on the optimization approach. First, energy demands are estimated hourly, daily, and seasonally through one year for the hospital with total floor area of 25,000 m. Second, miscellaneous kinds of equipment are listed up such as refrige...

An industrial plant consists of an input of energy, raw materials and labor and an output of products, waste energy and waste materials. If raw material and labor costs are relatively fixed, a reduction in the plant’s energy costs and waste materials are the two best means of improving profitability. This project specifically evaluates cogeneration opportunities as a means of substantially redu...

Abstract Energy cost and consumption are increasing, so that efficiency becomes more important, from the production to end users. reserves limited; increasing demand environmental concerns make important. To provide cost-effective clean power generation, gas turbines cogeneration becoming key technology must be researched developed. Three different cycles analyzed by using first second laws of ...