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 ...

Directed Technologies, Inc. has completed three analysis projects for the hydrogen program office during the past year: a detailed mass production cost estimate for stationary proton exchange membrane (PEM) fuel cell systems, an assessment of the costs of producing electricity from stationary fuel cells for buildings with hydrogen and heat cogeneration, and a preliminary assessment of the use o...

The aim of this study is to perform a dynamic modelling and simulation of a Portuguese industrial integrated system in order to analyse the integration and feasibility of the different units, maximizing its efficiency and minimizing its environmental damage, and to study the effect of some operational and atmospheric conditions on the system. For this purpose it was built a dynamic model of the...

In Northern China, due to the high penetration of coal-fired cogeneration facilities, which are generally equipped with extraction-condensing steam turbines, lots of wind power resources may be wasted during the heating season. In contrast, considerable coal is consumed in the power generation sector. In this article, firstly it is revealed that there exists a serious divergence in the ratio of...