针对中国西部地区城镇增容带来的供暖系统不能满足需求的问题,提出新增太阳能供暖系统与燃气锅炉等原有热源相结合的联合供暖方式。针对两种系统的容量匹配问题,建立以费用年值最低为优化目标的新增太阳能与原有燃气锅炉联合供暖系统主要设备容量匹配优化模型,利用TRNSYS平台进行仿真模拟并调用Hooke-Jeeves函数进行计算。通过案例分析计算,给出太阳能与原有热源联合供暖系统的建议连接方案;提出不同增容率条件下的系统优化配置方法,给出集热系统规模、蓄热系统容量的取值范围;在系统节能性方面,联合供暖系统的总能耗相较燃气锅炉系统降低45.9%~81.5%、天然气耗量相较燃气锅炉系统降低46.9%~83.1%。
Abstract
A new combined heating method integrating a solar heating system with the original gas boiler and other heat sources is proposed in this paper, in response to the issue that the heating system cannot satisfy the demand generated by the capacity increase of the towns in West China. The goal of the capacity matching optimization for the combination solar and gas boiler heating system is to minimize annual cost while accounting for the capacity matching issue between the two systems. The TRNSYS platform is employed for simulation, and the Hooke-Jeeves function is used for calculation. A suggested connection scheme for the combined heating system of solar energy and the existing heat source is provided through the case study calculation. The system optimization configuration methods are proposed, and the value ranges of the scale of the solar collection system and the capacity of the heat storage system are given under various conditions of capacity increase rate. In terms of system energy efficiency, the total energy consumption and the natural gas consumption of the combined heating system are 45.9% to 81.5% and 46.9% to 83.1%, respectively, lower than that of the gas boiler system.
关键词
太阳能供暖 /
燃气锅炉 /
系统设计 /
增容型城镇 /
联合供暖系统
Key words
solar heating /
gas fired boilers /
system design /
capacity increasing towns /
combined heating system
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基金
国家重点研发计划（2022YFC3802705）
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