Fouling and its effect on the thermal performance of heat exchanger tubes

被引：16

作者：

Sarma P.K. ^{[1
]}

Konijeti R. ^{[2
]}

Subramanyam T. ^{[1
]}

Prasad L.S.V. ^{[1
]}

Korada V.S. ^{[3
]}

Srinivas V. ^{[4
]}

Vedula D.R. ^{[5
]}

Prasad V.S.R.K. ^{[6
]}

机构：

[1] Department of Mechanical Engineering, College of Engineering, Andhra University, Visakhapatnam

[2] Department of Mechanical Engineering, K L University, Guntur

[3] Department of Mechanical Engineering, JNTUH College of Engineering, Hyderabad

[4] Department of Mechanical Engineering, GITAM University, Visakhapatnam

[5] Department of Mechanical Engineering, G.V.P. College of Engineering, Visakhapatnam

[6] Indian Institute of Petroleum and Energy, Visakhapatnam

来源：

International Journal of Heat and Technology | 2017年 / 35卷 / 03期

关键词：

Critical period; Fouling; Heat exchangers; Maintenance; Unsteady state;

D O I：

10.18280/ijht.350307

中图分类号：

学科分类号：

摘要：

The phenomena of fouling and corrosion in heat exchanger tubes commonly encountered in industrial practice are reviewed in two phases. In the first phase, the influence of physical and chemical properties of petroleum crude on scaling and fouling are reviewed. Further, in the second phase a generalized hypothesis is provided for unsteady analysis as function of time with the aid of logarithmic, exponential and Power law variation of fouling factors with time. The time dependent thermal characteristics of typical parallel and counter flow heat exchangers are established with the aid of time dependent fouling factors. The approach presented is in good agreement with the reported values of a petroleum refinery. Thus, a method to estimate the critical period for maintenance of the heat exchanger is established treating fouling as a time variable occurrence.

引用

页码：509 / 519

页数：10

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