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Advanced adiabatic compressed air energy storage (AA-CAES) system can effectively stabilize the fluctuations of new energy, and supply cooling, heating and power. This paper proposes an improved multi-stage AA-CAES system, in which a dual preheating structure is innovatively used between the expanders. And combined cooling, heating, and power (CCHP) model of AA-CAES system is proposed, in order to...
The technology of renewable energy has been raising public's concern and developing rapidly, however fossil fuels still seize the dominant position around the world. Therefore, how to gain the effective integration of renewable energy and traditional energy appears especially significant. In this paper, the refined model of the combined cooling heating and power systems considering the optimal cooperation...
In today's world where there are energy crises, there is a need to conserve the same. In order to conserve the energy, it is imperative to utilize its available forms as per the requirement that arise from the end user. In this paper, modeling and optimization of a Combined Cooling, Heating and Power (CCHP) plant is done wherein minimization of Exergy Destruction is set as an objective function. Electric...
In order to adapt to the active control and management of active distribution network (ADN), this paper proposes a new combined cooling, heating and power (CCHP) system. The electric heat pump is used to consume the power generated by the generator for adjusting the power peak of the network, and let the renewable energy generation sent more power to the ADN. The storage tank is integrated with the...
One of the most significant challenges of energy distribution network companies is producing electricity, heat and cooling demands. One specific solution to overcome the problem is operating different energy networks such as gas and electricity simultaneously. A vague approach to utilization of the networks is “Energy Hubs”. Energy hub entails electricity, gas, heat, and sometimes cooling networks...
Distributed Generation based on CCHP systems offer the possibility to integrate several energy conversion technologies exploiting RES. However, integration increases the degrees of freedom number of the decisional variables for the minimization of both costs and GHG emissions. In this paper a multi-variable and multi-objective optimization model has been proposed and applied to the household sector...
In the last years the household sector has become the main energy consumer. Among the actions for a more rational and more sustainable primary energy exploitation, cogeneration and trigeneration, eventually integrated with technologies based on renewable energy sources, are assuming a great role in the sector. The optimization of the system components and the overall plant reflects the choice of costs...
This paper proposes an online economic optimal operation of combined cooling heating and power (CCHP) and photovoltaic solar (PV) systems, including graphic user interface (GUI) for display of optimal energy flows. In this work, a test system consists of a CCHP system, a PV system, an auxiliary boiler, an absorption chiller, a heat storage tank, and utility grids. The problem has been formulated as...
The synthesis of optimization of combined cooling heating and power systems implies searching for a design and operation methodology that minimizes or maximizes an objective function, such as economic cost, environmental load or thermodynamic efficiency. The search process is bounded by the system's model, which is expressed by a set of constraints. The design/operation methodology must deliver systems...
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