Cogeneration has higher efficiency than separate heat and power generation. Since both are generated in a single process, it is necessary to allocate the emissions to by-products for comparing their environmental performance. Numerous methods exist resulting in very different allocations. There...

District heating can help to integrate renewable generation within the electricity domain and thus reach climate and energy goals by providing flexibility services and stabilizing the electricity grid. To determine the economic viability of such flexibility services, this work presents a...

The integrated provision of energy among various energy sectors plays an important role in the process of decarbonisation of large energy systems. An important pillar is thereby the decarbonisation of the heat sector, where nowadays still a large percentage of heat supply originates from...

Remote villages could potentially enhance their levels of autonomy leveraging on biofuels to produce electricity for basic needs from the agriculture and animal wastes.This study proposes a biosyngas-fueled power system, which is the fusion between a micro-thermophotovoltaic (micro-TPV) system...

Ice accretion seriously impairs the aerodynamics performance of the aircraft wing surface. In this paper, the influence of power density and actuator configuration on stream-wise plasma heat knife anti-icing is studied. And the anti-icing performance of two kinds of electric heating film is...

Using industrial excess heat for residential heating can increase energy efficiency and thus be part of the solution to achieving the EU's climate targets. However, industrial plants are often located in industrial areas and thus away from residential areas. Therefore, the excess heat has to be...

Substantial R&D efforts are currently directed towards the development of combined heat and power (CHP) systems that automatically and seamlessly connect to the power grid. In this paper we develop a real options model to assess the impact that the operational flexibility characterizing such...

The European electricity industry, the dominant sector of the world’s largest cap-and-trade scheme, is one of the most-studied examples of carbon pricing. In particular, numerical models are often used to study the uncertain future development of carbon prices and emissions. While parameter...

The development of European power markets is highly influenced by integrated electricity and heat systems. Therefore, decarbonization policies for the electricity and heat sectors, as well as numerical models that are used to guide such policies, should consider cross-sectoral interdependencies....

Use of low-temperature heat sources in district heating (DH) systems is gaining attention as a climate mitigation measure. Urban excess heat (UEH) from data centres, metro stations, sewage systems and service sector buildings’ cooling system belongs to these sources. The use of UEH affects...

The paper aims at analysing the energy performance of an innovative multi-source energy system for residential small-scale combined heat and power (CHP) applications. The integrated system is based on an Organic Rankine Cycle (ORC) fuelled by biodiesel, a wind turbine, and a photovoltaic unit....

Two types of hybrid photovoltaic/thermal (PV/T) modules, with and without glass cover for generating hot water and electricity (combined heat and power, CHP) were tested to investigate power generation performance in terms of generated power (Pe) with module temperature (Tm) and solar radiation...

The integrated provision of energy among various energy sectors plays an important role in the process of decarbonisation of large energy systems. An important pillar is thereby the decarbonisation of the heat sector, where nowadays still a large percentage of heat supply originates from...

In this paper, a new multi-objective technique has been proposed for optimal analysis of three different candidate heat pump solutions including the vapor compression cycle (VCC), trans-critical R744 cycle, and Peltier device to determine which one gives the best configuration and better...

The paper aims at analysing the energy performance of an innovative multi-source energy system for residential small-scale combined heat and power (CHP) applications. The integrated system is based on an Organic Rankine Cycle (ORC) fuelled by biodiesel, a wind turbine, and a photovoltaic unit....

This paper briefly introduces the characteristics of Distributed Combined Cooling, Heating and Power (CCHP) System, and indicates that the off-design conditions are the root cause of the performance reduction of system. An active regulation method based on system performance improvement is...

Two types of hybrid photovoltaic/thermal (PV/T) modules, with and without glass cover for generating hot water and electricity (combined heat and power, CHP) were tested to investigate power generation performance in terms of generated power (Pe) with module temperature (Tm) and solar radiation...

In this paper energy analysis of thermal power plant is presented. The primary objectives of the paper are to identify and quantify the reactions having maximum energy losses. Energy analysis is based on the second law of thermodynamics which gives maximum potential work and also characterizes...

In the years since COP21 in Paris, awareness of the need for carbon sinks has grown rapidly. However, policy instruments supporting a path to this target are still lacking. Bioenergy carbon capture and storage (BECCS) may provide a way to rapidly reduce global warming. In the Nordics, much of...

A combined heat and power plant with regenerative closed-cycle gas turbine is considered. The heat transfer losses, irreversible adiabatic losses and irreversible pressure drop losses are considered in the plant. The expressions of dimensionless profit rate and exergy efficiency are gained. The...

Nuclear energy is an important source of low-carbon electricity and thus plays a significant role in avoiding carbon emissions. It has the potential to decarbonise the global energy sector even further by also providing heat for industrial applications and residential heating, which both...

There is a broad consensus that the energy transition planned in Europe, along with an increasing share of renewable energy sources, demands a sufficient number of flexibility providers. The established flexibility procurement mechanisms, notably the reserve markets, are expected to reflect the...

There is a broad consensus that the energy transition planned in Europe, along with an increasing share of renewable energy sources, demands a sufficient number of flexibility providers. The established flexibility procurement mechanisms, notably the reserve markets, are expected to reflect the...

Auf die Versorgung von Wohngebäuden mit Raumwärme und Warmwasser entfällt in Deutschland ein erheblicher Teil des Endenergiebedarfs. Ihrer Transformation kommt folglich eine gewichtige Rolle bei der Erreichung der energie- und klimapolitischen Ziele der Bundesregierung zu. Sogenannte...

Combined heat and power (CHP) technology increases the flexibility of energy choices for enterprises. This paper focuses fuel mixing way to reduce carbon emission. In the real decision-making procedure, an enterprise takes reduction cost as the utility function, the accumulative emission as the...

This paper first seeks to quantify the potential for CHP development in New York City and describe the primary hurdles to optimal deployment in Parts I and II. Part III provides policy solutions for overcoming these hurdles and recommendations for how stakeholders can use information and...

Dieses Wuppertal Paper befasst sich mit folgenden Leitfragen: Wie wichtig sind Stadtwerke für die Energiewende? Was sind dabei die besonderen Beiträge von Stadtwerken? Hier ist insbesondere zu berücksichtigen, dass kommunal betriebene Kraft-Wärme-Kopplungs-Anlagen (KWK-Anlagen) ein wichtiger...

The present study investigates the impact of various factors affecting coal-fired power plant economics of 210 MW subcritical unit situated in north India for electricity generation. In this paper, the cost data of various units of thermal power plant in terms of power output capacity have been...