Angle Factor for Radiation to a Bank of Oval Tubes in Staggered Arrangement

庄震万

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Angle Factor for Radiation to a Bank of Oval Tubes in Staggered Arrangement

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- Angle Factor for Radiation to a Bank of Oval Tubes in Staggered Arrangement
- CIESC Journal Issue 3, (1981)
- 作者机构：
  
  化学工业部化工机械研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 1981，
  
  Published：25 September 1981
- 稿件说明：
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庄震万. Angle Factor for Radiation to a Bank of Oval Tubes in Staggered Arrangement[J]. CIESC Journal, 1981, (3).
DOI：

庄震万. Angle Factor for Radiation to a Bank of Oval Tubes in Staggered Arrangement[J]. CIESC Journal, 1981, (3). DOI：

摘要

工业炉炉管管排的角系数在炉子设计中是一个很重要的量。以往多用图解法求取。本文导出可用于计算椭圆形炉管管排角系数的公式

并给出了一些数值计算结果

可供设计使用。

Abstract

The angle factor for radiation to a tube bank is an important quantity in the industrial furnace design. In the past years

the graphical representation was frequently used. In this paper

the formulas calculating the angle factors for radiation to a bank of oval tubes are derived. These formulas are usable for the industrial furnace design. The primary results are as follows. Single bank of oval tubes:The local angle factor at any given point A(Fig. 2) is: Single-Side radiation

Double-Side radiation

where ≤PAE and≤EAG can be calculated from Eq. ( 9 )

(10)

(8) and (5) respectively. Double bank of oval tubes:The local angle factor at any given point (Fig. 3

Fig. 5)is:Single-side radiation (the bank which is far away from the radiation side). Double-Side radiation

D(Kt

B) =FAKi

B) + FA(K

- 6) where /^GAE

/_PmAE and^/PN2AE can be calculated from Eq. (33)

(32)

(28)

(27)

(26)

(25)

(24) and(21) respectively. Some calculated results of the angle factor for radiation to a single bank of oval tubes are given in table 1 as an illustration example.

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