The most common energy application for biogas is on-site power generation using gas engine units. The introduction of a bottoming cycle based on Scroll expander Organic Rankine Cycle (ORC) technology within a biogas plant is of high interest since the excess heat produced by biogas engines can be used to produce additional power. This paper describes the retrofit of a plant consisting of a dige...

The building sector is one of the key energy consumers worldwide. Fuel cell micro-Cogeneration Heat and Power systems for residential small commercial applications are proposed as most promising innovations contributing to transition towards a sustainable infrastructure. For application diffusion these systems, in addition their environmental performance, it necessary, however, evaluate economi...

This paper presents a thermoeconomic analysis aimed at the optimization of a novel zero-CO2 and other emissions and high-efficiency power and refrigeration cogeneration system, COOLCEP-S (Patent pending), which uses the liquefied natural gas (LNG) coldness during its revaporization. It was predicted that at the turbine inlet temperature (TIT) of 900 C, the energy efficiency of the COOLCEP-S sys...

Integrating large-scale micro-generation in distribution grids is challenging for distribution grid operators, particularly when renewable energy sources (RES) and micro-cogeneration are involved. In this paper we contend that recent developments in multiagent decision making under uncertainty can positively contribute to safe, efficient and costeffective operation of future distribution grids.

Abstract One of the main problems current district heating networks is significant heat losses that occur due to high temperature distribution fluid (usually, water in Italian climate conditions). Moreover, ORC- or steam-turbine-based cogeneration power plants, heated directly by condenser ORC cycle resulting low efficiency production section system. Considerable also employed for pumping flow ...

Two different methods were used to obtain polypyrrole/AuNP (Ppy/AuNP) composites. One through the electrooxidation of the pyrrole monomer in the presence of colloidal gold nanoparticles, referred to as trapping method (T), and the second one by electrodeposition of both components from one solution containing the monomer and a gold salt, referred to as cogeneration method (C). In both cases, el...

Recently proposed organic flash cycles maintain lower irreversibility in the evaporator than traditional Rankine cycles. This study presented a novel combined heat and power system that was based on regenerative cycle, order to improve thermal efficiency. Parametric analyses for were carried out, using six working fluids, performed with source temperatures sink ranged from 130 °C 170 °C, 20 40 ...