Design and performance optimization of a tri‐generation energy hub considering demand response programs

Abstract

The design and development of renewable energy resources-based polygeneration microgrids have recently increased to supply multiple demands such as cool, heat, and power as well as mitigate pollutants improving efficiency. This paper aims to develop a combined cooling, heating, and power production network integrating photovoltaic panels (PVs), wind and gas turbines, a battery, an ice bank tank, a heater, an electrical chiller, a thermal energy storage medium. In this tri-generation facility, natural gas is utilized for district heating and fueling the gas turbine power generation cycle. The local power distribution system in combination with the output powers of PVs, wind and gas turbines is used to directly supply the electrical appliances, ice maker process, and chiller as well as charge the battery storage unit. Moreover, the air/water-cooled chiller procures the cooling flux for a benchmark microgrid. Its heating energy requirement is also provided by the gas-fired heater, the flue gases of the gas turbine, and the thermal storage medium. A mixed integer linear programming problem is coded using a generalized algebraic modeling system (GAMS) to minimize daily operating costs and emissions. Simulations are examined and analyzed over a 24-h study horizon on a sample summer day. Time-of-use energy rates and RTPs are considered two strategic demand response schemes to investigate the costeffectiveness capability of the gas-power nexus model. The proposed approach is coded using a GAMS to confirm its effectiveness and cost-environ benefits in four cases with and without heat/cool/electrical storage units considering time-of-use energy rates and real-time prices. K E Y W O R D Scombined cooling heating and power, demand response, environmental pollutions, mixedinteger linear programming, real-time pricing, time-of-use

Bargaining‐based energy sharing framework for multiple CCHP systems with a shared energy storage provider

“…However, due to the investment cost and policy issues, the widespread application of user‐side energy storage or centralized energy storage is restricted. To solve this problem, some studies have proposed the energy storage sharing model 13–17 . The work 13 proposed a “capacity renting” model was introduced to facilitate the leasing of unused energy storage capacity from one microgrid to another, done at a unit's critical rental cost.…”

“…To solve this problem, some studies have proposed the energy storage sharing model 13–17 . The work 13 proposed a “capacity renting” model was introduced to facilitate the leasing of unused energy storage capacity from one microgrid to another, done at a unit's critical rental cost. The work 14 present principle, control, and communication technologies of a cloud energy storage model and demonstrates its effectiveness and economy through an Irish power system calculation example.…”

Influence of Balcony Glazing on Energy Efficiency and Thermal Comfort of Dwellings in a Dry Mediterranean Climate within a Warm Semi-Arid Climate

“…This contributes to energy savings [36][37][38][39][40] and to thermal comfort and indoor air quality [41][42][43][44][45][46][47], reducing reliance on mechanical systems [48]. It avoids excessive reliance on renewable energies, whose fluctuations due to climatic conditions require the use of conventional energy sources or renewable-energy-resource-based polygeneration microgrids [49] and advanced storage technologies [49].…”