Abstract：A better understanding of distribution uniformity of ambient temperature in an edible mushroom cultivating plant is necessary to improve mushroom yield and expand scale of mushroom production. An edible flammulina cultivating plant was Shanghai is selected as study object, its three-dimensional geometrical model was built and steady CFD heat transfer simulations were performed accordingly. The effectiveness and feasibility of these simulations were proved by comparing the simulated results with the experimental data. Four designs were proposed, and the optimal one was decided by comparing their simulation results. It was shown that about 1oC difference in ambient temperature predicted from the experimental observations is found at 0.1m, 1.8m and 3.5m elevations, suggesting basic agreement between simulation and experiment. Design 1 is mostly favorable to improvement in both air velocity distribution and ambient temperature uniformity, however, the nozzle devices installed in it can consume extra power, thus energy saving purpose is not achieved eventually. The results in the paper can provide guidance for production operation of edible mushroom cultivating plant and have significance in increasing the yield of edible mushroom.
李力,李红*,赵睿杰,向清江. 大型食用菌培养房室内制冷系统优化设计[J]. 排灌机械工程学报, 2019, 37(11): 967-971.
LI Li,LI Hong*,ZHAO Ruijie,XIANG Qingjiang. Design optimization of large indoor cooling system in edible mushroom cultivating plants. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(11): 967-971.
[1]于丽丽.食用菌工厂化环境控制系统的研究[D].哈尔滨:东北农业大学, 2015.
[2]叶运寿. 无公害食用菌的工厂化、标准化生产.农村实用工程技术[J]. 农村实用工程技术:绿色食品, 2004(4):18-19.
YE Yunshou. Industrial standardization production of pollution-free edible mushroom [J]. Agricultural enginee-ring technology:green food, 2004(4):18-19.(in Chinese)
[3]孙永明. 日本的食用菌生产[J]. 山西林业科技, 2004(3):31-32.
SUN Yongmin. Production of edible mushroom in Japan [J]. Shanxi forestry science and technology, 2004(3):31-32.(in Chinese)
[4]常明昌. 食用菌栽培学[M]. 北京:中国农业出版社, 2009:239-248.
[5]刘青海. 金针菇工厂化栽培环境调查与金针菇绵腐病的生物防治[D]. 南京:南京农业大学, 2010.
[6]OKUSHIMA L, SASE S, NARA M. A support system for natural ventilation design of greenhouses based on computational aerodynamics[J]. Acta horticulturae, 1989(248):129-136.
[7]BARTZANAS T, BOULARD T, KITTAS C. Effect of vent arrangement on windward ventilation of a tunnel greenhouse[J]. Biosystems engineering, 2004, 88(4):479-490.
[8]KHAOUA S A O, BOURNET P E, MIGEON C, et al. Analysis of greenhouse ventilation efficiency based on computational fluid dynamics[J]. Biosystems enginee-ring, 2006, 95(1):83-98.
[9]李永欣, 王朝元, 李保明,等. 荷兰Venlo 型连栋温室夏季自然通风降温系统的试验研究[J]. 中国农业大学学报, 2002,7(6):44-48.
LI Yongxin, WANG Chaoyuan, LI Baoming, et al. Experimental research on cooling effect of natural venti-lation in a Venlo-type multi-span greenhouse [J]. Journal of China Agricultural University, 2002,7(6):44-48.(in Chinese)
[10]王健, 丁为民, 杨红兵. 间隔互插式连栋温室的自然通风模拟与优化[J]. 计算机仿真, 2006,23(12):310-312.
WANG Jian, DING Weimin, YANG Hongbin. Simulation and optimization of natural ventilation for mutual interval insert type multi-span greenhouse[J]. Computer simulation, 2006,23(12):310-312.(in Chinese)
[11]王健, 汪小国, 丁为民. 风压通风的单栋温室内部流场的ANSYS CFD 模拟[J]. 农业机械学报,2007, 38(3):114-116.
WANG Jian, WANG Xiaoguo, DING Weimin. Ansys CFD simulation of airflow distribution in a tunnel greenhouse under wind driven situation [J]. Transactions of the CSAM,2007, 38(3):114-116.(in Chinese)
[12]吕书强. 窗户位置和尺寸对住宅室内自然通风的影响及效果评价[D]. 天津:天津大学, 2010.
[13]李本卿. 强制通风条件下Venlo 型温室内气流场和温度场的CFD 数值模拟研究[D]. 镇江:江苏大学,2009.
[14]谭胜男. 基于CFD 的现代化温室环境数值模拟与优化研究[D]. 南京:南京农业大学, 2013.
[15]沈敏.食用菌工厂菇房内环境的模拟验证与优化研究[D].镇江:江苏大学, 2016.
