摘要
针对当前生物质燃烧炉灶热效率低、火力强度达不到要求、供风不充足燃烧不完全、功能单一等问题,依据集中供餐炊事对清洁生物质颗粒燃料炉灶的需求,研制了一种以层燃为燃烧方式,集炒菜、蒸饭、烧水、供热等功能于一体的生物质颗粒直燃炉灶。运行性能试验结果表明:该炉灶的炊事热效率为42.9%,综合热效率达70.7%,炊事强度为14.1 k W,烟气排放指标低于国家标准,生物质颗粒燃烧较为充分,可为以生物质颗粒为燃料的集中供餐炊事炉灶的设计与应用提供科学参考。
Several issues existing in the biomass stoves, such as low thermal efficiency, substandard fire intensity, insufficient air supply, uncomplete combustion, substandard emission and unitary function. According to the requirement about the environmental cooking stoves with biomass pellet fuel for centralized food catering, a novel direct-fired cooking stove with biomass pellet fuel was designed to solve the mentioned shortcomings. An annular evaporator was installed above the furnace, the water inside the evaporator was heated by the peripheral flame and flue gas, and high temperature steam produced from evaporator was assigned to different routes to achieve the direct-fired cooking stove combined functions of stir-fry, steamed rice, boil water and thermaling. Meanwhile, in order to ensure the uniformity of air intake,a grid shaped air inlet sleeve was designed, the wind was blown into the furnace in a rotating form. Moreover, all the integrated functions can run simultaneously. According to the national standard NB/T 34015--2013, the direct-fired stove was tested. The performance test results of the redesigned cooking stove showed that the thermal efficiency for cooking reached 42.9% , and the integrated thermal efficiency was 70. 7% combined with the thermal used for heating water. The fire intensity for cooking was 14. 1 kW, and emission indexes of flue gas was lower than the national standard. The novel design of the cooking stoves with biomass pellet fuel realized the complete combustion of biomass particles, which can provide reference for the design and application of direct-fired pellet stove.
作者
李亚猛
周雪花
胡建军
朱胜楠
荆艳艳
张全国
LI Yameng ZHOU Xuehua HU Jianjun ZHU Shengnan JING Yanyan ZHANG Quanguo(College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou 450002, China Collaborative Innovation Center of Biomass Energy of Henan Province, Zhengzhou 450002, China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2017年第10期280-285,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金项目(51676065)
国家自然科学基金联合基金项目(U1504509)
教育部博士点基金新能源优先领域项目(20134105130001)
关键词
生物质颗粒
直燃炉灶
设计
试验
biomass pellet
direct-fired stove
design
test
作者简介
李亚猛（1988-），男，博士生，主要从事可再生能源工程研究，E-mail：874750357@qq．com
通信作者：张全国（1958-），男，教授，博士生导师，主要从事可再生能源工程研究，E-mail：zquanguo@163．com
