DRYING CHARACTERISTICS AND ENERGY CONSUMPTION ANALYSIS OF SOLAR HEAT PUMP COMBINED SYSTEM OF WOLFBERRY

Yan Suying; Zhao Long; Wang Qun

doi:10.19912/j.0254-0096.tynxb.2022-1261

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 106-112. DOI: 10.19912/j.0254-0096.tynxb.2022-1261

DRYING CHARACTERISTICS AND ENERGY CONSUMPTION ANALYSIS OF SOLAR HEAT PUMP COMBINED SYSTEM OF WOLFBERRY

Yan Suying, Zhao Long, Wang Qun

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Abstract

In order to reduce carbon emissions, the combination of solar collector and air source heat pump is used to replace the traditional coal burning hot blast stove drying. The dehumidification characteristics of solar heat pump system were studied by comparing the combined drying of solar heat pump and the drying of heat pump alone. At the same time, the drying experiment of Chinese wolfberry with solar air collector assisted air source heat pump was carried out to verify its feasibility. Under the same drying temperature setting, the solar heat pump combination dryingcan save 28.8% electricity power compared with the heat pump alone drying, and the high drying load experimental group can save 15% electricity power compared with the medium drying load experimental group. Compared with the traditional hot blast oven drying room drying, each ton of wolfberry drying cost is saved 448 yuan, that means saving standard coal 121.14 kg, reducing CO₂ emissions 317.39 kg.

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solar collectors / air source heat pumps / drying / energy consumption / Chinese wolfberry

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Yan Suying, Zhao Long, Wang Qun. DRYING CHARACTERISTICS AND ENERGY CONSUMPTION ANALYSIS OF SOLAR HEAT PUMP COMBINED SYSTEM OF WOLFBERRY[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 106-112 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1261

References

[1] ANDHARIA J K, BHATTACHARYA P, MAITI S.Development and performance analysis of a mixed mode solar thermal dryer for drying of natural rubber sheets in the north-eastern part of India[J]. Solar energy, 2020, 208: 1091-1102.
[2] REDDY MUGI V, CHANDRAMOHAN V P.Energy, exergy and economic analysis of an indirect type solar dryer using green chilli: a comparative assessment of forced and natural convection[J]. Thermal science and engineering progress, 2021, 24: 100950.
[3] YU M Q, YU J L.Thermodynamic analyses of a solar assisted ejector enhanced vapor injection cycle with subcooler for heat pump dryer application[J]. Solar energy, 2022, 232: 376-387.
[4] TAKOUGNADI E, BOROZE T E T, AZOUMA O Y. Effects of drying conditions on energy consumption and the nutritional and organoleptic quality of dried bananas[J]. Journal of food engineering, 2020, 268: 109747.
[5] 闫素英, 潘文丽, 高世杰, 等. 太阳能-热泵互补供暖系统负荷-运行协同调控与优化[J]. 可再生能源, 2022, 40(5): 611-618.
YAN S Y, PAN W L, GAO S J, et al.Synergetic control and optimization of solar-heat pump complementary heating system based on thermal load-operation[J]. Renewable energy resources, 2022, 40(5): 611-618.
[6] 闫素英, 王群, 高世杰, 等. 增加蓄热装置的空气源热泵-太阳能互补供暖系统优化研究[J]. 可再生能源, 2021, 39(6): 754-759.
YAN S Y, WANG Q, GAO S J, et al.Optimization of air source heat pump-solar hybrid heating system with increased heat storage[J]. Renewable energy resources, 2021, 39(6): 754-759.
[7] 明廷玉, 李保国. 太阳能与热泵联合干燥茶叶的应用研究[J]. 太阳能学报, 2017, 38(10): 2730-2736.
MING T Y, LI B G.Application research of combined drying tea with solar energy and heat pump system[J]. Acta energiae solaris sinica, 2017, 38(10): 2730-2736.
[8] HU Z T, ZHANG S, CHU W F, et al.Numerical analysis and preliminary experiment of a solar assisted heat pump drying system for Chinese wolfberry[J]. Energies, 2020, 13(17): 4306.
[9] SINGH A, SARKAR J, SAHOO R R.Experimental performance analysis of novel indirect-expansion solar-infrared assisted heat pump dryer for agricultural products[J]. Solar energy, 2020, 206: 907-917.
[10] KARAAĞAÇ M O, ERGÜN A, AĞBULUT Ü, et al. Experimental analysis of CPV/T solar dryer with nano-enhanced PCM and prediction of drying parameters using ANN and SVM algorithms[J]. Solar energy, 2021, 218: 57-67.
[11] WANG Y F, LI M, QIU Y, et al.Performance analysis of a secondary heat recovery solar-assisted heat pump drying system for mango[J]. Energy exploration & exploitation, 2019, 37(4): 014459871882393.
[12] 何伟, 储文峰, 胡中停, 等. 新型太阳能-空气源热泵联合干燥系统设计及枸杞干燥实验研究[J]. 太阳能学报, 2021, 42(12): 59-63.
HE W, CHU W F, HU Z T, et al.Design of new solar energy and air source heat pump combined drying system and experimental study on Chinese wolfberry drying[J]. Acta energiae solaris sinica, 2021, 42(12): 59-63.
[13] 刘伟东, 顾欣, 郭君钰, 等. 微波热风联合干燥工艺对枸杞品质和表面微生物的影响[J]. 农业工程学报, 2019, 35(20): 296-302.
LIU W D, GU X, GUO J Y, et al.Effects of microwave-hot air drying process on quality and surface microorganism quantity of Lycium barbarum[J]. Transactions of the Chinese Society of Agricultural Engineering, 2019, 35(20): 296-302.