摘要
根据供暖空调的能耗过程,给出节能系数与用能系数的定义,基于热泵系统的运行模式,推导了制热或制冷工况的计算公式。还分析了以大气为冷源的空调系统产生城市热岛效应后的能耗附加值。按现有水源热泵运行性能给出了用能与节能系数定量值,计算了单位水量、单位温变的节能与环保效益。研究表明:地表水源热泵系统节能系数在0.37～1.00之间,热岛效应后的能耗附加值达20%,1.0m3地表水温变1℃节能量达1.55～4.18MJ/ (m3·℃),减少二氧化碳排放达(1.4～2.03)×10-3kg/(m3·℃)。
On basis of energy-consuming of HVAC, the energy-saving and energy-using coefficients were defined and their calculation formulas under the refrigeration or heating are deduced. The heat island effect because of the air-source airconditioning units and the quantitative formulas for added energy value was discussed. The energy-saving and energy-using coefficients, and the energy-saving and environmental benefit per unit flux or temperature have been calculated. The research indicateed that the energy-saving coefficient of surface-water heat-pump system is between 0.37 to 1, but the relative added energy value of air-source air-conditioning system is 20%, the quantity of energy-saving is 1.55 - 4.18 MJ（m^3·℃）, the CO2 exhaust reduces about （1.4-2.03） × 10^-3kg/（m^3 ·℃）.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2007年第7期751-755,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金项目(50578048)
关键词
地表水源热泵
用能系数
节能系数
热岛效应
环境影响
surface water source heat pump
energy-using coefficients
energy-saving coefficients
heat island effect
environmental effect
