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    Double pipe heat exchanger fouling compensation
    4.
    发明授权
    Double pipe heat exchanger fouling compensation 有权

    公开(公告)号：US12276991B2

    公开(公告)日：2025-04-15

    申请号：US17550444

    申请日：2021-12-14

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Sami El Ferik ,  Mustafa Al-Nasser ,  Rached Ben Mansour ,  Mohammed Ahmed Mohammed Eltoum

    IPC: F28D7/00 ,  G05B15/02 ,  G05D23/19 ,  G06F17/11 ,  G06F119/08 ,  G06N7/02

    Abstract: This disclosure presents methods and systems of controlling a counter flow double pipe heat exchanger (DPHE) that includes a hot fluid pipe and a cold fluid pipe. In a method, a temperature error between a reference temperature and a temperature at an outlet of the hot fluid pipe of the counter flow DPHE is determined. A cold fluid mass flow rate is determined from an output of a proportional-integral-derivative (PID) controller based on the temperature error being input to the PID controller. The cold fluid mass flow rate is used for a cold fluid in the cold fluid pipe of the counter flow DPHE. The temperature error is controlled within a predefined range by utilizing parameters of the PID controller that are set by using a harmony search algorithm (HSA) to obtain a minimization of a cost function.

    CO2 adsorbent
    6.
    发明授权
    CO2 adsorbent 有权

    公开(公告)号：US10576409B2

    公开(公告)日：2020-03-03

    申请号：US16556509

    申请日：2019-08-30

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Rached Ben Mansour ,  Naef Qasem

    IPC: B01D53/04 ,  B01J20/20 ,  B01J20/18 ,  B01J20/22

    Abstract: A CO2 adsorbent that includes MIL-100(Fe) and various amounts of carbon nanotubes that are dispersed therein, and a method of capturing CO2 with a CO2 adsorbent that includes an adsorbent matrix of a zeolite and/or a metal organic framework and carbon nanotubes that are dispersed within the adsorbent matrix. Various embodiments of the CO2 adsorbent and the method of capturing CO2 are also provided.

    Composite adsorbent for adsorption chiller
    8.
    发明授权
    Composite adsorbent for adsorption chiller 有权

    公开(公告)号：US10040052B2

    公开(公告)日：2018-08-07

    申请号：US15047606

    申请日：2016-02-18

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Syed Ahmed Mohammed Said ,  Rached Ben Mansour ,  Najam Ul Qadir

    IPC: B01J20/22 ,  B01J20/20 ,  B01J20/30 ,  C09K5/04

    Abstract: The composite adsorbent for an adsorption chiller is a composite material formed from multi-walled carbon nanotubes incorporated into a metal organic framework, where the metal organic framework is MIL-101(Cr). The MIL-101 family of metal organic frameworks include terephthalate (benzene 1,4-dicarboxylate) linkers and M3O-carboxylate trimers (M=Cr or Fe) with octrahedrally coordinated metal ions binding terminal water molecules. MIL-101 frameworks having a crystal structure with very large pore sizes (29 and 34 Angstroms) and surface area, and are known to have a large water uptake. However, metal organic frameworks have low thermal conductivity due to the presence of organic matter, resulting in lower heat transfer rates and greater cycle time, and are not stable in aqueous media or disintegrate slowly upon recurrent hydrothermal cycling. Composite binding with multi-wall carbon nanotubes improves heat transfer characteristics and thermal stability.

    Heat exchanger flow balancing system
    9.
    发明授权
    Heat exchanger flow balancing system 有权
    换热器流量平衡系统

    公开(公告)号：US09297595B2

    公开(公告)日：2016-03-29

    申请号：US13973961

    申请日：2013-08-22

    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    Inventor： Syed A. M. Said ,  Rached Ben Mansour ,  Mohamed A. Habib ,  Muhammad Umar Siddiqui

    IPC: F28F9/02 ,  G05D23/00 ,  F28D1/053

    CPC classification number: F28F9/0282 ,  F28D1/05316 ,  F28D1/05325

    Abstract: The heat exchanger flow balancing system serves to substantially equalize fluid flow through essentially identical diameter heat exchanger tubes in a heat exchanger having a single inlet plenum, a single outlet plenum, and a series of equal diameter heat exchanger tubes extending therebetween. In one embodiment, a series of different diameter orifices are provided at the inlet end of each of the tubes, with those tubes farther from the single larger diameter inlet pipe to the plenum generally having smaller orifices. In another embodiment, each of the tubes is provided with a conical nozzle at its inlet end, with those tubes farther from the single inlet pipe to the plenum generally having smaller diameter nozzles. The effect is to substantially equalize fluid flow through all of the heat exchanger tubes, thus increasing the efficiency of the heat exchanger.

    Abstract translation: 热交换器流量平衡系统用于在具有单个入口气室，单个出口增压室和在其间延伸的一系列相等直径的热交换器管的热交换器中基本相同直径的热交换器管的流体流动基本相等。 在一个实施例中，在每个管的入口端处提供一系列不同直径的孔，其中那些管远离单个较大直径的入口管至通常具有较小孔的通气室。 在另一个实施例中，每个管在其入口端处设置有锥形喷嘴，其中那些管更远离单个入口管至通常具有较小直径喷嘴的通风室。 其效果是使流过所有热交换器管的流体大致相等，从而提高了热交换器的效率。

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