3.17.1 FOULING IN HEAT EXCHANGERS: Overview and summaryG.DepartmentF.DepartmentHaysDepartmentJ.DepartmentG.DepartmentKnudsenDepartmentHeat Exchanger Design Updates
heat flow due to a build-up of a layer of dirt or other fouling substance on the tube surfaces of the heat exchanger, but they are often overstated by the end user in an attempt to minimise the frequency of cleaning. In reality, if the wrong fouling factor is used, cleaning may ...
3.17 FOULING IN HEAT EXCHANGERS: Contentsdoi:10.1615/heatexchdesignupd.v6.i1.10J.DepartmentG.DepartmentKnudsenDepartmentG.DepartmentF.DepartmentHaysDepartmentT.DepartmentRegDepartmentBottDepartmentHeat Exchanger Design Updates
Figure 14.Crude Unit Vacuum Column wash bed (316 SS) installed in July 2020. Figure 15.Coker furnace pipe replaced with Minimox-treated pipe, upper pipe (347H SS) installed in October 2021. Figure 16.Minimox-treated (shell-side and tube side, 317 SS) heat exchanger tube bundle for hydr...
Fouling in heat exchangers has major cost implications; especially in applications such as crude oil pre- heating. In principle, fouling can be mitigated through changes in the way a heat exchanger network is designed and operated. In crude oil fouling, the rate of fouling is dominated by the...
This leads to a higher rate of soot particles and pollutants in the exhaust gas. Consequently, fouling in the downstream heat exchanger (HE) is a serious issue when operating biogas in mCHPs. One approach to solve this problem is the identification of a fouling resistant coating for the HE ...
Heat exchangers occupy an important place in chemical industry, yet fouling and corrosion in heat exchanger set will lead to an inadequate heat exchanging efficiency, a higher cost, or even worse, an unsafe production environment. To solve the problem of fouling and corrosion in heat exchangers, ...
However, when doing an extrapolation at industrial scale, errors become significant because of the non-linearities of the thermophysical properties and the transfer coefficients along the heat exchanger. For that, a follow-up on the fouling resistance in heat exchangers of tube-calender type in ...
a concern. In many temperature-sensitive systems, however, pressure drop is critical and there is no alternative to structured packing. Selection of operating conditions is a key factor in avoiding fouling. Care must be taken to avoid undesired condensation on cold piping orheat exchanger surfaces....
Particulate fouling in an Alfa-Laval P20 plate heat exchanger was investigated using a suspension of aluminum oxide particles in heptane. Process parameters such as flow velocity, heat flux, and particle concentration were varied over a considerable range. In this paper, the influence of the above...