标准资料网-标准资料免费资源平台

Product Code:SAE AIR1168/3
Title:Aerothermodynamic Systems Engineering and Design
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope: This section presents methods and examples of computing the steady-state heating and cooling loads of aircraft compartments. In a steady-state process the flows of heat throughout the system are stabilized and thus do not change with time. In an aircraft compartment, several elements compose the steady-state air conditioning load. Transfer of heat occurs between these sources and sinks by the combined processes of convection, radiation, and conduction in the following manner: 1) convection between the boundary layer and the outer airplane skin; 2) radiation between the external skill and the external environment; 3) solar radiation through transparent areas directly on flight personnel and equipment and on the cabin interior surfaces; 4) conduction through the cabin walls and structural members; 5) convection between the interior cabin surface and the cabin air; 6) convection between cabin air and flight personnel or equipment; and 7) convection and radiation from internal sources of heat such as electrical equipment. The subsequent paragraphs discuss methods of determining each of the heat transfer rates listed above, as well as the physiological considerations involved in the selection of proper cabin conditions that are to be maintained.f heat such as electrical equipment. The subsequent paragraphs discuss methods of determining each of the heat transfer rates listed above, as well as the physiological considerations involved in the selection of proper cabin conditions that are to be maintained.【英文标准名称】:Tyresandwheels.Rimprofilesanddimensions.Commercialvehiclerims.Specificationformetricseriesrims
【原文标准名称】:轮胎和车轮.第4部分:轮辋外廓和尺寸.第2节:商用车辆轮辋.第1小节:米系列轮辋规范
【标准号】:BSAU50-4.2.1-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-06-15
【实施或试行日期】:1995-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:轮胎;名称与符号;运载工具部件;轮子;作标记;作标记;商用车辆;客车;道路车辆零部件;轮辋;尺寸
【英文主题词】:dimensions;buses;vehiclecomponents;roadvehiclecomponents;designations;wheels;profile;marking;tyres;wheelrims;commercialroadvehicles
【摘要】:
【中国标准分类号】:T22
【国际标准分类号】:43_040_50;43_080_01
【页数】:12P;A4
【正文语种】:英语