Engineering estimation methods of thermal load of airplane
-
摘要: 大飞机乘员舱热载荷是指当维持大飞机乘员舱内温度、湿度恒定时,单位时间内传入(或传出)的净热量,它是确定大飞机温度调节系统能力的依据.在查阅国外25种大飞机环境控制系统相关文献的基础上,提出了大飞机乘员舱热载荷的两种工程估算方法为:大飞机乘员舱热载荷与乘员数之间良好的线性关系,在确定乘员舱人数的前提下,采用工程估算模型1可以估算出乘员舱热载荷;大飞机乘员舱全舱结构壁传热系数为2.45~7.97W/(m2·℃),平均值为4.93 W/(m2·℃).在环控系统初步设计时,如有乘员舱外形和构想,采用工程估算模型2也可简便地估算出乘员舱热载荷.研究成果为大飞机的研制提供一定的理论指导.Abstract: The thermal load of the airplane refers to the net heat transmitted in (or out) per unit time when keeping the constant temperature and humidity in the cabin of the airplane, which is the reference to estimate the ability of the temperature conditioning system. On the basis of consulting 25 kinds of foreign related literature on airplane environmental control system, two kinds of thermal load estimation method were proposed as follows.The thermal load of airplane passenger cabin had a good linear relationship with the number of passenger, under determining the number of cabin crew, using estimation model 1 could estimate crew cabin heat loads. The value range of the heat transfer coefficient of the aircraft whole cabin wall was 2.45 ~ 7.97 W/(m2·℃) and the average value was 4.93 W/(m2·℃). In the preliminary design of environmental control system, if the concept of shape is known, using estimation model 2 could also estimate cabin crew thermal load easily. The research results will offer some guidance for the development on civil airplane.
-
Key words:
- thermal load /
- environment regulations /
- heat transfer coefficients
-
[1] 王恒斌,张宝霖.国外飞机环境控制系统手册[M].北京:航空工业出版社,1980:116-275 Wang Hengbin,Zhang Baolin.Handbook of environment control system on foreign airplanes[M].Beijing: Aeronautic Industry Press,1980:116-275(in Chinese) [2] 路多,胡文超.新一代干线客机A380和波音787的环境控制系统[J].航空科学技术,2005(2):17-19 Lu Duo,Hu Wenchao.Environmental control system of new generation jet airliner A380 and B787[J].Science and Technology of Aeronautics,2005(2):17-19(in Chinese) [3] DeFrancesco G L.Condensing cycle air conditioning system .SAE932056,1993 [4] DeFrancesco G L.Appliction of the reverse-bootstrap air cycle environmental control system .SAE891437,1989 [5] 王仙.民机座舱制冷系统性能研究 .北京:北京航空航天大学航空科学与工程学院,2007 Wang Xian.The performance study of refrigeration system for airplanes cabin .Beijing: School of Aeronautic Science and Engineering,Beijing University of Aeronautics and Astronautics,2007(in Chinese) [6] 寿荣中,何惠姗.飞行器环境控制[M].北京:北京航空航天大学出版社,2004:6-73 Shou Rongzhong,He Huishan.Environment control of airplanes[M].Beijng: Beijing University of Aeronautics and Astronautics Press,2004:6-73(in Chinese) [7] 杨世铭.传热学[M].北京:高等教育出版社,2004:9-11 Yang Shiming.Heat transfer[M].Beijing: Higher Education Press,2004:9-11(in Chinese) [8] 飞机设计手册总编委会.飞机设计手册11[M].北京:航空工业出版社,1998:1-12 Committee of handbooks of aircraft design.Aircraft design(11)[M].Beijing: Aeronautic Industry Press,1998:1-12(in Chinese) -
点击查看大图
计量
- 文章访问数: 4228
- HTML全文浏览量: 142
- PDF下载量: 980
- 被引次数: 0
下载:
