The present paper aims at the optimization and exergy and thermoeconomic analyses of a combined cooling, heat, and power generation system equipped with a thermal energy storage for the use in a residential complex with a gas-fueled internal combustion engine as the prime mover. The system is optimized using the direct search method by minimizing annual cost in two cases of using/not using a thermal energy storage. In case of the use of a thermal energy storage, an engine with a capacity of 2 MW and an operating time of 4000 h are found to be optimal, but when a thermal energy storage is included, an engine with a capacity of 2 MW and an operating time of 5268 hours and a thermal energy storage with a capacity of 18.93 m³ are found to be the optimal options. Both systems are evaluated assuming selling/not selling surplus power to the public power grid. The best case for the performance of the system is to use a thermal energy storage and to sell surplus electricity to the grid. In this case versus the case of excluding the thermal energy storage, primary energy consumption, CO₂ emission, operating cost of the system, and power purchase from the public grid are decreased by 20.8, 19.5, 14.3 and 17%, respectively while return on capital is increased by 3.1% resulting in 10.7% higher annual cost of the system.

本文旨在对配备有热能存储装置的制冷，热电联产发电系统进行优化，火用和热经济分析，以用于以燃气为动力的原动机的住宅小区。通过使用直接搜索方法优化了系统，方法是在使用/不使用热能存储的两种情况下将年度成本降至最低。在使用热能储存器的情况下，发现容量为2 MW且工作时间为4000 h的发动机是最佳的，但是当包含热能储存器时，容量为2 MW的发动机和运行时间为5268小时，蓄热能力为18.93 m ³被发现是最佳选择。评估两个系统时都假设要向公共电网出售/不出售剩余电力。系统性能的最佳案例是使用热能存储并将多余的电力出售给电网。在这种情况下，与不包括热能存储的情况相比，一次能源消耗，CO ₂排放，系统的运行成本以及从公共电网购买的电能分别减少了20.8％，19.5％，14.3％和17％。资本增加了3.1％，导致该系统的年度成本增加了10.7％。