[1]姚远,秦汉时,付威,等.橡胶木太阳能-热泵联合干燥能耗分析[J].林业工程学报,2019,4(06):29-35.[doi:10.13360/j.issn.2096-1359.2019.06.004]
 YAO Yuan,QIN Hanshi,FU Wei,et al.Energy consumption analysis of drying of Hevea brasiliensis using solar energy-heat pump combined kiln[J].Journal of Forestry Engineering,2019,4(06):29-35.[doi:10.13360/j.issn.2096-1359.2019.06.004]
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橡胶木太阳能-热泵联合干燥能耗分析()
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《林业工程学报》[ISSN:1001-8081/CN:32-1160/S]

卷:
4
期数:
2019年06期
页码:
29-35
栏目:
木材科学与技术
出版日期:
2019-11-20

文章信息/Info

Title:
Energy consumption analysis of drying of Hevea brasiliensis using solar energy-heat pump combined kiln
文章编号:
2096-1359(2019)06-0029-07
作者:
姚远1秦汉时2付威3崔崔3刘雨兵1龚宇烈1
1.中国科学院广州能源研究所,中国科学院可再生能源重点实验室, 广州 510640; 2.国网电力科学研究院(武汉)能效测评有限公司,南瑞集团有限公司,武汉 430074; 3.国网湖北综合能源服务有限公司,武汉 430077
Author(s):
YAO Yuan1 QIN Hanshi2 FU Wei3 CUI Cui3 LIU Yubing1 GONG Yulie1
1.CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; 2.State Grid Electric Power Research Institute(Wuhan) Energy Efficiency Evaluation Co.Ltd., Nanrui Group Co.Ltd., Wuhan 430074, China; 3.State Grid Hubei Integrated Energy Services Co.Ltd., Wuhan 430077, China
关键词:
橡胶木 太阳能 热泵 木材干燥 能效比
Keywords:
Hevea brasiliensis solar energy heat pump wood drying energy efficiency ratio
分类号:
S781.71
DOI:
10.13360/j.issn.2096-1359.2019.06.004
文献标志码:
A
摘要:
木材干燥不但是保障和改善木材品质、提高木材利用率的重要环节,也是木制品生产过程中能耗最大的工序。为了适应新的环保要求和降低能耗成本,太阳能-热泵联合干燥成为目前木材干燥技术研究的热点方向之一。笔者研制了以热水为传热工质的太阳能-空气源热泵联合干燥设备,按照含水率干燥基准,以“太阳能利用最大化”为控制原则对进口橡胶木(Hevea brasiliensis)板材进行了干燥能耗的试验研究,并对比分析了太阳能-空气源热泵联合干燥与其他以常规能源供热的干燥方式的能耗及经济性。结果表明,马来西亚产25 mm厚橡胶木板材单位体积实际耗热量为547 275 kJ/m3,干燥系统热损失率为15.8%,总体能效比为2.41。联合干燥的能耗成本是燃油锅炉干燥的30%,电加热器干燥的39%,燃气锅炉干燥的52%,电+热泵干燥的84%。干燥后木材含水率及干燥缺陷满足国家标准二级要求。说明在光照条件好的地区可以在木材干燥行业中大力推广太阳能-空气源热泵联合干燥,具有环境优势的同时,也能取得良好的经济效益。
Abstract:
Wood drying is not only important to guarantee and improve the quality and the utilization rate of wood, but also the most energy-consuming process in the production of wood products.With the increasing pressure of energy saving and environmental protection in the drying industry, solar energy-heat pump combined kiln-drying has become one of the hot research directions in the wood drying field.The research team designed the solar-air source heat pump combined drying equipment with hot water as heat transfer medium.Under the condition of unstable solar radiation, the equipment can provide heat at a stable temperature and operate accurately according to the pre-set drying schedules.This equipment was designed to work automatically in various drying modes under the control principle of maximizing the utilization of solar energy.The equipment was installed in a wood drying enterprise in Taishan, Guangdong Province.In this paper, the energy consumption of drying 25 mm sick Hevea brasiliensis wood plates imported from Malaysia was experimentally studied with the combined drying device according to the initial moisture content and drying schedules.The energy consumption and cost of solar-air source heat pump combined drying and other drying methods with conventional energy heating were compared and analyzed.The results showed that the actual heat consumption per unit volume of imported Hevea brasiliensis wood plates was 547 275 kJ/m3, the heat loss rate of drying system was 15.8%, and the overall energy efficiency ratio was 2.41.Under the same amount of wood drying, the energy consumption cost of combined drying was only 30% of that of oil-fired boiler drying, 39% of that of electric heater drying, 52% of that of gas-fired boiler drying, and 84% of that of electric plus heat pump drying.After the drying, these Hevea brasiliensis wood plates did not have obvious drying defects, such as warping, distortion and cracking, and no serious discoloration and mildew on the surface was found.The wood quality can meet the grade 2 of the GB/T 6491-2012 standard.The experimental results showed that the solar-air source heat pump combined drying should be promoted in the wood drying industry in areas with good lighting conditions, because this drying method can not only promote environmental protection, but also obtain better economic benefits.

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备注/Memo

备注/Memo:
收稿日期:2019-03-24 修回日期:2019-06-03 基金项目:中国科学院战略性先导科技专项(XDA21050000); 国家电网公司总部科技项目(SGHB0000KXJS1800477)。 作者简介:姚远,男,工程师,研究方向为热泵干燥。E-mail:yaoyuan@ms.giec.ac.cn
更新日期/Last Update: 2019-11-10