基于负荷品位的新风空调系统理论能耗研究
Research on theoretical energy consumption of outdoor air conditioning systems based on load grade
摘要：
传统空调系统采用低温冷源和高温热源来处理全部负荷,导致系统能效低下。为充分利用自然能源、大幅提升空调系统能效水平,本文提出了空调系统理论能耗分析方法。基于负荷品位理论,定义了空气处理单一工况理论能耗和季节理论能耗,并以北京地区新风系统为例分析了新风空调系统的理论能耗。结果表明,对新风负荷分品位处理并充分利用自然能源后,北京夏季新风空调系统理论能效可达8.475。
Abstract：
Traditional air conditioning systems use low-temperature cold source and high-temperature heat source to handle the total load, which results in the low energy efficiency of air conditioning system. To fully utilize natural energy and significantly enhance the energy efficiency of air conditioning systems, this paper proposes an analysis method for theoretical energy consumption of air conditioning systems. Based on load grade theory, the theoretical energy consumption of air treatment under single operating condition and seasonal theoretical energy consumption are defined. Taking an outdoor air system in Beijing as an example, the theoretical energy consumption of outdoor air conditioning system is analysed. The results show that the theoretical energy efficiency of summer outdoor air conditioning system in Beijing can reach 8.475 by grading outdoor air load and fully utilizing natural energy.
Keywords:load grade; outdoor air treatment; air conditioning; theoretical energy consumption; natural energy; energy efficiency