Towards low-carbon energy systems, there are countries with ongoing plans for expanding their nuclear power capacity, and simultaneously advancing the role of variable renewable energy sources (RES), namely wind and solar energy. This crossroads of capital-intensive, baseload power production and uncontrollable, intermittent RES may entail new challenges in the optimal and economic operation of...

A combined heat and power virtual plant (CHP-VPP) can effectively control the distributed resources in an electric–thermal coupling system solve problem of lack flexibility caused by large-scale renewable energy grid connection. Similar to optimal reconfiguration distribution network topology operating switches, district heating is also equipped with tie sectionalizing valves realize adjustment...

Energy efficiency is likely to influence the characteristics and magnitude of residential energy demand in the future. In particular, improved thermal insulation, patterns of appliance ownership, and turnover of housing stock will change the residential energy landscape. The economics of residential micro combined heat and power (micro-CHP) a technology to provide heat and some electricity to i...

In the endeavor of optimizing the sustainability of bioenergy production in Denmark, this consequential life cycle assessment (LCA) evaluated the environmental impacts associated with the production of heat and electricity from one hectare of Danish arable land cultivated with three perennial crops: ryegrass (Lolium perenne), willow (Salix viminalis) and Miscanthus giganteus. For each, four con...

Variable renewable electricity generation is likely to constitute a large share of future systems. In such systems, the cost and resource efficiency can be improved by employing strategies manage variations. This work investigates combined heat power (CHP) plant flexibility as variation management strategy in an energy system context, considering operation cost-competitiveness CHP plants. An op...

As energy systems globally are transitioning into renewable energy, simultaneous targets of high self-sufficiency have led to complex system design proposals. While conventional technology solutions would reduce the complexity in theory, limitations potential outcome may exist. To address this dilemma, work quantified systemic value provided by a solution; biomass combined heat and power (CHP) ...

For many years, the Department of Power Engineering and Turbomachinery Silesian University Technology has been using a small-capacity (about 500 kW e ) steam-gas power plant. Based on years experience in operation this plant utilizing Velox-type gas-steam system, an idea arose to modify type thermal cycle create combined heat (CHP) small capacity, dedicated for distributed production or process...

Biogas is an abundant renewable energy source which can be produced by anaerobic treatment of biological waste such as sewage sludge, agro-industrial waste, and industrial animal waste. The utilization biogas instead fossil fuels in a solid oxide fuel cell (SOFC)-based system promising choice to achieve fossil-free sustainable future. A biogas-fed decentralized SOFC combined heat power (CHP) mo...

Combined cooling, heat, and power (CCHP) units can be integrated with conventional separate cooling, heat, and power production units to meet demands. The goal of this study is to develop and examine a hybrid GA-heuristic optimization algorithm for solving the unit commitment problem for integrated CCHP-thermal-heat only system with considerations for electricity boiler. When environmental emis...

Heating extraction steam (HEXTR) flow rate is the key parameter to determine heat load of a combined and power (CHP) plant safe operation area turbine CHP plant. Due difficulty direct measurement, soft measurement method this proposed. First, three calculation methods based on different principles are given: Flügel formula method, butterfly valve characteristics improvement balance characterist...