Relevant bibliographies by topics / LMTD correction factor

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Academic literature on the topic 'LMTD correction factor'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "LMTD correction factor"

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Monteiro Guimarães, Luiz Gustavo, Matheus dos Santos Guzella, Luben Cabezas-Gómez, and Flávio Neves Teixeira. "Numerical Determination of the LMTD Correction Factor for Shell-and-Tube 1-2 Heat Exchangers." Applied Mechanics and Materials 789-790 (September 2015): 457–61. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.457.

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This paper outlines a novel numerical methodology to compute the LMTD correction factor for a shell-and-tube heat exchangers. Although the presented methodology can be extended to other shell-and-tube heat exchangers, the analysis presented is this paper concerns the one shell pass and two tube pass configuration, namely 1-2 shell-and-tube heat exchanger. The correction factor is compute by means of an association of e-NTU and LMTD approaches proposed by Kays and London (1998). An analysis of the convergence of the solution provided by the numerical methodology is confronted against results fr
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Neves Teixeira, Flávio, Luiz Gustavo Monteiro Guimarães, Matheus dos Santos Guzella, Luben Cabezas-Gómez, and José Antônio da Silva. "Numerical Procedure for LMTD Correction Factor Calculation for One Tube and One Shell Pass Shell-and-Tube Heat Exchangers." Applied Mechanics and Materials 789-790 (September 2015): 426–29. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.426.

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This paper outlines the application of a numerical procedure to compute the LMTD correction factor for one tube pass and one shell pass, namely 1-1, shell-and-tube heat exchangers. Although the procedure was applied for this specific arrangement, it can easily be applied to different heat exchanger arrangements. The numerical methodology is based on an association of ε-NTU and LMTD approaches introduced by Kays and London (1998). Unlike other shell-and-tube heat exchanger arrangements, such as one tube pass and two shell pass, no available analytical expression in closed form is available in t
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Tucker, A. S. "The LMTD Correction Factor for Single-Pass Crossflow Heat Exchangers With Both Fluids Unmixed." Journal of Heat Transfer 118, no. 2 (1996): 488–90. http://dx.doi.org/10.1115/1.2825873.

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Rubcov, Artur, Sabina Paulauskaitė, and Violeta Misevičiūtė. "Experimental Research and Simulation of Fin and Tube Heat Exchanger." Mokslas - Lietuvos ateitis 9, no. 4 (2017): 451–61. http://dx.doi.org/10.3846/mla.2017.1055.

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The paper provides the results of experimental and theoretical test of a wavy fin and tube heat exchanger used to cool air in a ventilation system when the wavy fin of the heat exchanger is dry and wet. The experimental tests, performed in the range of 1000<Re<4500 of the Reynolds number applying LMTD-LMED methodology, determined the dependency of the heat transfer coefficient on the supplied air flow rate with the varying geometry of the heat exchanger (the number of tube rows, the distance between fins, the thickness of the fin and the diameter of the tube). The experimental te
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Dhawi, A. Al-Otaibi, A. Al-Otaibi Ghazzi, M. Al-Qarni Majed, and A. Al-Otaibi Sattam. "Innovative Methodology to Improve Shell and Tube Heat Exchangers Performance." International Journal of Innovative Science and Research Technology 7, no. 5 (2022): 617–22. https://doi.org/10.5281/zenodo.6613639.

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The objective of this technical paper is to study the effect of optimizing the internal baffle spacing (Lb) on the thermal and hydraulic performance of shell and tube heat exchangers. The thermal effects on the terminal temperatures of both shell and tube sides and heat duty are also studied. The changes in LMTD correction factor (FN) due changing the baffle spacing are also addressed in this report. TEMA is specifying the minimum baffle spacing as one fifth of the shell inside diameter or 50.8 mm, whichever is greater. The maximum unsupported length is one and half (1½) meters for nine
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Bharat, B. Gulyani, Jain Anuj, and Kumar Shalendra. "Optimal Synthesis of Multipass Heat Exchanger without Resorting to Correction Factor." May 20, 2011. https://doi.org/10.5281/zenodo.1077064.

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Customarily, the LMTD correction factor, FT, is used to screen alternative designs for a heat exchanger. Designs with unacceptably low FT values are discarded. In this paper, authors have proposed a more fundamental criterion, based on feasibility of a multipass exchanger as the only criteria, followed by economic optimization. This criterion, coupled with asymptotic energy targets, provide the complete optimization space in a heat exchanger network (HEN), where cost-optimization of HEN can be performed with only Heat Recovery Approach temperature (HRAT) and number-of-shells as variables.
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Tahir, Muhammad, Rahmiaty Kasim, and Yoyanda Bait. "Uji Performansi Desain Terintegrasi Tungku Biomassa dan Penukar Panas." agriTECH 33, no. 2 (2013). http://dx.doi.org/10.22146/agritech.9805.

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A series testing of the integrated design of biomass furnace and heat exchanger was conducted to see the performance using methods such as the effectivenes-number of transfer unit (e-NTU), the efficiency as a function of Fin Analogy Number (h(Fa)) and the log-mean temperature difference (LMTD). The biomass furnace as a plant to generated heat produced value of energy 25,600W with the burning rated of corncob 7.03 kg/hour. The calculation of amount of heat transfer to the cold fluid in the tubes as function of fluid characteristic, mass rated of dry air in a longitudinal section was 11,285W. Th
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Zhang, Tianyi, Qingze Zeng, Kaicheng Li, et al. "Distinct resting-state functional connectivity patterns of Anterior Insula affected by smoking in mild cognitive impairment." Brain Imaging and Behavior, May 27, 2023. http://dx.doi.org/10.1007/s11682-023-00766-6.

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AbstractSmoking is a modifiable risk factor for Alzheimer’s disease (AD). The insula plays a vital role in both smoking and cognition. However, the smoking effects on insula-related networks in cognitively normal controls (CN) and mild cognitive impairment (MCI) patients remain unknown. We identified 129 CN (85 non-smokers and 44 smokers) and 83 MCI (54 non-smokers and 29 smokers). Each underwent neuropsychological assessment and MRI (structural and resting-state functional). Seed-based functional analyses in the anterior and posterior insula were performed to calculate the functional connecti
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Onwe, John Ituma, та Joel. Ademiluyi. "PREDICTING PRESSURE FILTER NET SOLIDS YIELD USING BUCKINGHAM-Π METHOD OF LMT DIMENSIONAL ANALYSIS." 11 липня 2018. https://doi.org/10.5281/zenodo.1400373.

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A model for predicting Pressure filter Net Solids Yield has been derived using Buckingham-π method of LMT Dimensional Analysis. It was observed in previous studies that addition of large amounts of chemical conditioners could alter the initial solids content of the original slurry to be filtered. Increment in the initial solids content also occurs when skeleton builders are mixed with chemical conditioners. The filter cake yield of such slurry would definitely be higher while the resulting specific resistance would be lower. To account for these additions, it is important that a valid filte
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Book chapters on the topic "LMTD correction factor"

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"LMTD correction factor (F)." In Fundamentals of Industrial Heat Exchangers. Elsevier, 2024. http://dx.doi.org/10.1016/b978-0-443-13902-4.09962-5.

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Conference papers on the topic "LMTD correction factor"

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Fakheri, Ahmad. "Log Mean Temperature Correction Factor: An Alternative Representation." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39595.

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The Log Mean Temperature Difference (LMTD) correction factor, F, is traditionally expressed in terms of two non-dimensional parameters P=t2−t1T1−t1, and R=T1−T2t2−t1 in form of charts as the underlying equations are complicated. F shows strong functional dependence on both P and R, reducing the accuracy of reading the charts particularly in the steep regions. In this study it is shown that the LMTD correction factor F, can be expressed in terms of two new variables, φ=(T1−T2)2+(t2−t1)22[(T1+T2)−(t1+t2)] and ρ=T1−t2T2−t1. Expressed in terms of these variables, F correlations and charts are much
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Fakheri, Ahmad, and Maryam Fazel. "Optimization of Shell and Tube Heat Exchanger Networks." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59513.

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A methodology is presented for the optimization of a network of shell and tube heat exchangers connected in series. For a given total rate of heat transfer and the known inlet and exit temperatures of the hot and cold fluids, the total area of the heat exchanger network is minimized. In the proposed methodology, the heat exchangers are assumed to be different. This is a generalization compared to the traditional approach where all the heat exchangers are taken to have the same area and the same LMTD (Log Mean Temperature Difference) correction factor. In the traditional approach the minimum nu
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Ishizaki, Yoichi, and Futoshi Yonekawa. "Reorganize Significance of Mt, Ms and Plastic Zone Size Against LMSD Under Plastic Collapse Regime." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-85187.

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Abstract Due to the aging of facilities, Oil and Chemical industries in Japan has been longing for using API 579-1/ASME FFS-1 [1] Part 4 and Part 5 assessment over decades. However, most of equipment are subjected to Japanese High Pressure Gas Safety Law so our industry needed to pass through the discussion in a local committee. In the local committee, there was a conflict on the significance of Folias Factor, Mt, and surface correction factor, Ms. The conflict had been a stumbling block against the formal permission to use API 579-1/ASME FFS-1 Part 4 and Part 5 assessment technology. In 2021,
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Aizawa, Kengo, Masahiro Ueda, Teppei Shimada, Hideki Aoyama, and Kazuo Yamazaki. "High Efficiency Molding by Real-Time Control of Distance Between Nozzle and Melt Pool in Directed Energy Deposition Process." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8598.

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Abstract Laser metal deposition (LMD) is an additive manufacturing technique, whose performance can be influenced by a considerable number of factors and parameters. Typically, a powder is carried by an inert gas and sprayed by a nozzle, with a coaxial laser beam passing through the nozzle and overlapping the powder flow, thereby generating a molten material pool on a substrate. Monitoring the evolution of this process allows for a better comprehension and control of the process, thereby enhancing the deposition quality. As the metal additive manufacturing mechanism has not yet been elucidated
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Ishizaki, Yoichi, and Hiroyasu Ameya. "On the Required Distance to Major Structural Discontinuity From Local Metal Loss Area." In ASME 2024 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/pvp2024-121682.

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Abstract API 579-1/ASME FFS-1 Fitness for Service Part 5 local metal loss Level 2 assessment requires a sufficient distance between local metal loss area and neighboring major structural discontinuity based on S.Timoshenko’s model [1] [2]. The model assumed a concentrated force and moments on a cylindrical shell. A sufficient distance to settle down the bending moment from the point was evaluated. Occasionally, a flaw is observed around a major structural discontinuity, and the required distance limits the application of Lv.2 assessment. While the model would be well applicable for piping nozz
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