GPA 2172/API MPMS CHAPTER 14.5 2
real gas volume, it gives the energy transferred as heat from combustion in an ideal gas reaction per volume of the fuel
as a real gas.
3.2
as-delivered
A condition for water vapor entrained in the gas. The term “as-delivered” can reference “saturated gas at flowing
conditions” (see 3.13) or “partially saturated gas” (see 3.9).
3.3
base conditions
Base conditions are certain pressure and temperature conditions selected for a specific purpose such as defined by state
and federal laws and regulations or to meet the needs of contracting parties. Common base pressures in the U.S. include
14.65 psia, 14.73 psia, and 15.025 psia. The base temperature in the U.S. is usually 60 °F.
3.4
Btu
The Btu (British thermal unit) is a measurement unit for a quantity of energy transferred as heat.
3.5
compressibility factor
The compressibility factor is the ratio of the actual volume of a given mass of gas to its volume calculated from the ideal
gas law using given conditions of temperature and pressure.
3.6
dry gas
Dry gas contains no water, however, for practical purposes, contracting parties often define “dry” to include small
quantities of water. In the U.S., dry gas is typically specified to not exceed 7 lb of water per million standard cubic feet
(MMSCF) of gas.
3.7
gross heating value
higher heating value
HHV
The gross heating value, Hv
id
, is the amount of energy transferred as heat per mole, unit mass or unit volume from the
complete, ideal combustion of the gas with oxygen at a base temperature in which all water formed by the reaction
condenses to liquid. As explained in Annex A, this is a hypothetical state, but it is acceptable for custody transfer.
Reporting the gross heating value on a volumetric rather than a mass or molar basis requires a base pressure along with
a base temperature. Spectator water does not contribute to the gross heating value.
3.8
ideal gas
An ideal gas is a hypothetical gas which would follow the characteristic equation PV = nRT under all conditions.
3.9
partially saturated gas
Partially saturated gas contains some quantity of water vapor less than that present under saturated conditions, but more
than dry, normally expressed in mass of water per unit volume of delivered gas at defined conditions. The water content
for partially saturated gas typically is the quantity measured using a chilled mirror, moisture analyzer or other device
commonly accepted in the industry. In the U.S., partially saturated gas normally is expressed as pounds of water per
MMSCF of delivered gas.
3.10
real gas
A real gas is one that does not obey the ideal gas law. Instead its behavior follows the expression:
PV = ZnRT where Z is the compressibility factor, and Z usually does not equal 1.0. For an ideal gas, Z always equals 1.0.
剩余50页未读，继续阅读
std7879
- 粉丝: 113
- 资源: 2016
下载权益
电子书特权
VIP文章
课程特权
VIP享7折，此内容立减3.57元 开通VIP
我的内容管理
展开
最新资源
- 最优条件下三次B样条小波边缘检测算子研究
- 深入解析：wav文件格式结构
- JIRA系统配置指南：代理与SSL设置
- 入门必备：电阻电容识别全解析
- U盘制作启动盘：详细教程解决无光驱装系统难题
- Eclipse快捷键大全：提升开发效率的必备秘籍
- C++ Primer Plus中文版：深入学习C++编程必备
- Eclipse常用快捷键汇总与操作指南
- JavaScript作用域解析与面向对象基础
- 软通动力Java笔试题解析
- 自定义标签配置与使用指南
- Android Intent深度解析：组件通信与广播机制
- 增强MyEclipse代码提示功能设置教程
- x86下VMware环境中Openwrt编译与LuCI集成指南
- S3C2440A嵌入式终端电源管理系统设计探讨
- Intel DTCP-IP技术在数字家庭中的内容保护
资源上传下载、课程学习等过程中有任何疑问或建议，欢迎提出宝贵意见哦~我们会及时处理！
点击此处反馈
