多能互补的吸收式热泵用于宽温区冷热兼供系统研究
TB61+1%TQ051.5%TU83; 在"碳中和"目标背景下,实现集中式冷热管网无法覆盖的分布式区域的低碳冷热兼供,具有重要的现实意义.提出一种基于吸收式热泵的冷热兼供系统,利用光热、地热、余热、生物质和空气能等多种清洁、可再生能源,实现-20～90℃宽温区冷热兼供,适用于乡村、城镇、工业园等分布式区域.基于Aspen构建了系统模型,并搭建了一套原理样机.样机利用真空管集热器捕集光热能,并引入天然气补燃平衡光热负荷波动;通过载热/载冷介质循环及阀组切换,利用单套吸收式热泵及室外冷热一体机,拖动多套室内供热/供冷末端.原理样机在济南进行了环境测试,整个测试期间光热占比可达...
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| Published in | 制冷学报 Vol. 46; no. 1; pp. 24 - 31 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院大学 北京 100049
01.02.2025
中国科学院理化技术研究所 北京 100190 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-4339 |
| DOI | 10.12465/j.issn.0253-4339.2025.01.024 |
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| Abstract | TB61+1%TQ051.5%TU83; 在"碳中和"目标背景下,实现集中式冷热管网无法覆盖的分布式区域的低碳冷热兼供,具有重要的现实意义.提出一种基于吸收式热泵的冷热兼供系统,利用光热、地热、余热、生物质和空气能等多种清洁、可再生能源,实现-20～90℃宽温区冷热兼供,适用于乡村、城镇、工业园等分布式区域.基于Aspen构建了系统模型,并搭建了一套原理样机.样机利用真空管集热器捕集光热能,并引入天然气补燃平衡光热负荷波动;通过载热/载冷介质循环及阀组切换,利用单套吸收式热泵及室外冷热一体机,拖动多套室内供热/供冷末端.原理样机在济南进行了环境测试,整个测试期间光热占比可达35％.通过燃气比例调节,实现全天候稳定供能;通过液位控制,实现了大范围的浓度调节,使样机能在更宽的温度范围内高效运行.研究发现:当冷却水温度在30～20 ℃变化时,-20 ℃制冷COP为0.30～0.43,7℃制冷COP为0.70～0.78;当蒸发温度在-15～20 ℃变化时,45 ℃供热COP为1.40～1.90,80 ℃供热COP为1.35～1.56.结果表明:通过引入太阳能热驱动和空气能回收,该系统可再生能源比例超过50％;相较燃气壁挂炉和电空调的传统方式,新型系统全年运行费用降低54％,碳排放降低44％,具有巨大的应用潜力. |
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| AbstractList | TB61+1%TQ051.5%TU83; 在"碳中和"目标背景下,实现集中式冷热管网无法覆盖的分布式区域的低碳冷热兼供,具有重要的现实意义.提出一种基于吸收式热泵的冷热兼供系统,利用光热、地热、余热、生物质和空气能等多种清洁、可再生能源,实现-20～90℃宽温区冷热兼供,适用于乡村、城镇、工业园等分布式区域.基于Aspen构建了系统模型,并搭建了一套原理样机.样机利用真空管集热器捕集光热能,并引入天然气补燃平衡光热负荷波动;通过载热/载冷介质循环及阀组切换,利用单套吸收式热泵及室外冷热一体机,拖动多套室内供热/供冷末端.原理样机在济南进行了环境测试,整个测试期间光热占比可达35％.通过燃气比例调节,实现全天候稳定供能;通过液位控制,实现了大范围的浓度调节,使样机能在更宽的温度范围内高效运行.研究发现:当冷却水温度在30～20 ℃变化时,-20 ℃制冷COP为0.30～0.43,7℃制冷COP为0.70～0.78;当蒸发温度在-15～20 ℃变化时,45 ℃供热COP为1.40～1.90,80 ℃供热COP为1.35～1.56.结果表明:通过引入太阳能热驱动和空气能回收,该系统可再生能源比例超过50％;相较燃气壁挂炉和电空调的传统方式,新型系统全年运行费用降低54％,碳排放降低44％,具有巨大的应用潜力. |
| Abstract_FL | Achieving low-carbon combined cooling and heating supply in distributed areas away from centralized cooling and heating networks is highly significant in the context of carbon neutrality.This study proposes a combined cooling and heating system based on an absorption heat pump,which uses a variety of clean and renewable energies,such as solar heat,geothermal,waste heat,biomass,and air-source energy,to achieve the combined cooling and heating in a wide temperature range from-20 ℃ to 90 ℃.Such systems are suitable for distributed areas,such as villages,cities,and industrial parks.The system model was constructed based on Aspen,and a prototype was developed.The prototype uses a vacuum tube collector to capture solar thermal energy and introduces natural gas as a supplementary heat source to balance fluctuations of solar energy.Multiple sets of indoor heating and cooling terminals can be driven through medium circulation and valve switching using a single set of absorption heat pumps and outdoor units.The environmental test of the prototype was performed in Jinan,and the solar thermal ratio reached 35％during the testing period.An all-weather stable energy supply was achieved by proportional control of natural gas.Moreover,a wide range of concentration adjustments was achieved by controlling the liquid level in the solution tank,enabling efficient system operation in a wider temperature range.The coefficient of performance(COP)of cooling reached 0.30-0.43 at-20 ℃ and 0.70-0.78 at 7 ℃,with cooling water temperatures varying from 30 ℃ to 20 ℃;the COP of heating reached 1.40-1.90 at 45 ℃ and 1.35-1.56 at 80 ℃,with evaporation temperature varying from-15 ℃ to 20 ℃.The study results demonstrated that introducing solar thermal energy and ambient energy recovery increased the fraction of renewable energy in the system to over 50％.Compared with the traditional method of gas furnace plus air conditioning,the annual operating cost and carbon emissions of the proposed system were reduced by over 54.3％and 44％,respectively,which has significant application potential. |
| Author | 鹿丁 刘子健 申涛 公茂琼 陈润东 |
| AuthorAffiliation | 中国科学院理化技术研究所 北京 100190;中国科学院大学 北京 100049 |
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| Author_FL | Lu Ding Shen Tao Gong Maoqiong Chen Rundong Liu Zijian |
| Author_FL_xml | – sequence: 1 fullname: Lu Ding – sequence: 2 fullname: Liu Zijian – sequence: 3 fullname: Shen Tao – sequence: 4 fullname: Chen Rundong – sequence: 5 fullname: Gong Maoqiong |
| Author_xml | – sequence: 1 fullname: 鹿丁 – sequence: 2 fullname: 刘子健 – sequence: 3 fullname: 申涛 – sequence: 4 fullname: 陈润东 – sequence: 5 fullname: 公茂琼 |
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| DocumentTitle_FL | Multi-Energy Complementary Absorption Heat Pump Applied for Combined Cooling and Heating over a Wide Temperature Range |
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| Keywords | combined cooling and heating renewable energy 冷热兼供 可再生能源 absorption heat pump 吸收式热泵 多能互补 碳减排 carbon emission reduction multi-energy complement |
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| Title | 多能互补的吸收式热泵用于宽温区冷热兼供系统研究 |
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