不同风能搅拌致热工质产热效果研究  

STUDY ON HEATING EFFECT OF DIFFERENT STIR-HEATING MEDIUM

作　　者：郭宇 孙先鹏[1,2] 杨康 邱昕洋 李建明[1,2] 胡晓辉[1,2] Guo Yu;Sun Xianpeng;Yang Kang;Qiu Xinyang;Li Jianming;Hu Xiaohui(College of Horticulture,Northwest A&F University,Yangling 712100,China;Key Laboratory of Horticulture Engineering in Northwest China,Ministry of Agriculture,Yangling 712100,China;College of Mechanical and Electric Engineering,Northwest A&F University,Yangling 712100,China)

机构地区：[1]西北农林科技大学园艺学院,杨凌712100 [2]农业部西北设施园艺工程重点实验室,杨凌712100 [3]西北农林科技大学机械与电子工程学院,杨凌712100

出　　处：《太阳能学报》2021年第1期205-209,共5页Acta Energiae Solaris Sinica

基　　金：国家大宗蔬菜产业技术体系(CARS-23-C-05)。

摘　　要：为了解决风能致热中的关键问题,设计并搭建一套采用六直叶圆盘涡轮作为搅拌致热叶片的搅拌致热试验系统,以寻求一种高效的搅拌致热工质。选用水、3种油类(46#抗磨液压油、废弃机油、石蜡油)、2种悬浊液(淀粉悬浊液、沙子悬浊液)和2种水溶液(饱和NaCl溶液、9%的NaHCO3溶液)共8种搅拌工质,分析不同工质的温升速率、搅拌功率和致热效率。结果表明:在试验转速范围内(300~500 r/min),采用不同液体作为搅拌工质可改变搅拌器致热效果,其中饱和NaCl溶液和石蜡油是效果较好的搅拌致热工质,饱和NaCl溶液致热效率最高可达41.56%,石蜡油致热效率最高可达33.93%;油类搅拌工质的温升较水类高,但致热效率较低;石蜡油和饱和NaCl溶液可分别用作风速较低地区和风速较高地区的搅拌工质。In order to solve the key problems of wind-heating,a stirring heating experiment system with six straight blade turbine blade as the mixing blade had been designed and built,to seek an efficient mixing heating medium. The study using 8 kinds of medium as stirring medium including water,46# hydraulic oil,used engine oil,paraffin oil,starch suspension,sand suspension,saturated NaCl solution and 9% NaHCO3 solution to analyzing the temperature rise rate,stirring power and heating efficiency of different working fluids.The results show that the heat efficiency can be changed by using different liquids as the mixing medium within the test speed range(300-500 r/min). The saturated NaCl solution and paraffin oil are the better stir-heating medium,The maximum heat efficiency of the saturated NaCl solution is up to 41.56%,and the highest heat efficiency of the paraffin oil can reach 33.93%. The temperature rise of oil is higher than other medium,but the thermal efficiency is lower. Paraffin oil and saturated NaCl solution can be used separately in the areas with lower wind speed and higher wind speed.

关 键 词：风能 风力致热 致热器 液体搅拌 致热效能 致热工质 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]