Abstract
The interest in distributed generation has been increasing in recent years, especially due to technical devel- opment on generation systems that meet environmental and energy policy concerns. One of the most impor- tant distributed energy technologies is Combined Cooling, Heat and Power (CCHP) systems. CCHP is a small and self-contained electric, heating and cooling generation plant that can provide power for households, commercial or industrial facilities. It can reduce power loss and enhance service reliability in distribution systems. The proposed method in this paper determines the optimal size and operation of CCHP, auxiliary boiler and also heat storage unit as elements of an energy hub, for users by an integrated view of electricity and natural gas network. Authors apply cost and benefit analysis in the optimization. To confirm the proposed method, the optimum sizes of these elements are determined for a hotel in Tehran as a case study.
Highlights
The interest in distributed generation has been increasing in recent years, especially due to technical development on generation systems that meet environmental and energy policy concerns
The electric power industry is under deregulation in response to changes in legislation, technology, market and competition
All of these costs and benefits are calculated in terms of present value factor (PVF), accumulated over the economic life of the respective equipment
Summary
The electric power industry is under deregulation in response to changes in legislation, technology, market and competition. With its decentralized electricity generation, combined with onsite production of heat and cooling, could provide reliable electric power as well as heat and cooling to its consumers at an economic cost. This set is named combined cooling, heat and power (CCHP) system. Reliability enhancement has received substantial attentions as it reduces the costs of losses incurred by utility customers as a result of power failures [7] All of these costs and benefits are calculated in terms of present value factor (PVF), accumulated over the economic life of the respective equipment. The proposed method takes the benefits and costs of CCHP placement into account and determines the optimal sizing and operation for an energy hub’s elements.
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