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Experimental Study on a Pulsation-enhanced Heat Transfer Device

2020 Bulletin of Science and Practice  
Early research on vibration-enhanced heat transfer focused on enhanced heat transfer experiments based on forced vibration.  ...  The research on heat transfer enhancement technology of heat exchangers mainly focuses on two directions.  ... 
doi:10.33619/2414-2948/53/28 fatcat:odp6f66ojnecpkqlhhs3zudegu

Analysis of Heat Transfer Enhancement in Spiral Plate Heat Exchanger

Kaliannan Saravanan, Rangasamy Rajavel
2008 Modern Applied Science  
In the present study, the heat transfer coefficients of benzene in a spiral plate heat exchanger are investigated.  ...  The effects of relevant parameters on spiral plate heat exchanger are investigated. The data obtained from the experimental study are compared with the theoretical data.  ...  Considerable research is being pursued in spiral and helical heat exchanger in heat transfer and flow areas.  ... 
doi:10.5539/mas.v2n4p68 fatcat:44duhrrcsnfwhpzrmehp2zaotu

ENHANCEMENT OF HEAT TRANSFERRED RATE THROUGH HEAT EXCHANGERS DURING CONCENTRATION PROCESS OF MILK

Said Elshahat Abdallah, Wael Mohamed Elmessery
2016 Misr Journal of Agricultural Engineering  
Commercial pilot scale of plate heat exchanger was operated at milk flow rate of 0.078 m 3 h -1 and heating level from 42 to 61°C.  ...  Fouling problems of heat exchangers affect severely the performance of heat transfer process during the concentration of milk.  ...  Several investigations on heat transfer of an oscillated flow in flat channels or pipes/ducts concluded that the flow pulsation intensified heat and mass transfer ( The increase of heat transfer has  ... 
doi:10.21608/mjae.2016.97619 fatcat:57mxjqzodbfzbf7fpywkciyhpm

Thermal Characteristic and Analysis of Microchannel Structure Flat Plate Pulsating Heat Pipe with Silver Nanofluid

Hui Xu, Ping Zhang, Lipei Yan, Dehao Xu, Wei Ma, Liyan Wang
2019 IEEE Access  
This paper investigates the effect of silver nanofluid on a flat-plate pulsating heat pipe (FP-PHP).  ...  The optimal volume fraction of silver nanofluid was 1%, and the FP-PHP containing sliver nanofluid exhibited increased heat transfer efficiency.  ...  Qu and Wu [15] researched flow visualization of a silicon-based micro-pulsating heat pipe.  ... 
doi:10.1109/access.2019.2907820 fatcat:yqq3s6dngne2znmc46jk2qwgdy

An Experimental Investigation of Heat Transfer Coefficients for Spiral Plate Heat Exchanger

Kaliannan Saravanan, Rangasamy Rajavel
2008 Modern Applied Science  
This paper presents an experimental investigation of convective heat transfer co-efficient for electrolytes using spiral plate heat exchanger.  ...  The effects of relevant parameters on spiral plate heat exchanger are investigated. The data obtained from the experimental study are compared with the theoretical data.  ...  This is because the heat transfer and flow characteristics of spiral plate heat exchanger have been studied.  ... 
doi:10.5539/mas.v2n5p14 fatcat:xtejp4pfrvbh5g7ez4va2cpo2e

Study on the Effect of Diaphragm Booster on the Pulsed Heat Transfer of Cooling System

2020 Bulletin of Science and Practice  
Based on the design of the compressor drive, it improves energy efficiency, avoids the use of high-power water pumps, and saves equipment construction and daily operation.  ...  The device heats the heat generated by the diesel engine cylinder liner in a pulsating circulation system through a cylinder circulator in a pulsating circulation system to exchange heat with the external  ...  to enhance the heat transfer [1] .  ... 
doi:10.33619/2414-2948/53/25 fatcat:z2ndy2ll2zg4naslw734h3dp34

Effects of Clearance around Square Pillar in Rectangular Enclosure on Cooling Performance of Pulsating Airflow

Takashi Fukue, Koichi Hirose, Hidemi Shirakawa, Jun Suzuki, Yosuke Saga
2016 Journal of Mechanics Engineering and Automation  
This study focuses on a development of heat transfer enhancement techniques using pulsating flow for thermal equipment such as electronic equipment and heat exchangers.  ...  The heat transfer enhancement around heating components by the pulsating flow can be available regardless of the clearance around the components.  ...  The authors also wish to acknowledge the assistance of Ms. Natsuki Yatsu, the former student at Graduate School of Iwate University, Mr.  ... 
doi:10.17265/2159-5275/2016.08.001 fatcat:hq6rfwiwhzftpouf5meh5ewmce

Study of Thermal Performance of Closed Loop Pulsating Heat Pipe using Computational Fluid Dynamics

K. C. Giri
2021 International Journal for Research in Applied Science and Engineering Technology  
Abstract: Pulsating heat pipe is a heat transfer device which works on two principles that is phase transition and thermal conductivity which transfer heat effectively at different temperatures.  ...  Analysis of heat transfer characteristics of closed loop pulsating heat pipe (CLPHP) is to be carried out by using Computational Fluid Dynamics.  ...  of the Pulsating Heat Pipe (PHP) is established, based on the two-phase flow theory and the Volume of Fluid (VOF) method in Computational Fluid Dynamics (CFD).  ... 
doi:10.22214/ijraset.2021.38088 fatcat:tgyb7yebsngnreh3nbikeusaju

Development of Pulsating Twin Jets Mechanism for Mixing Flow Heat Transfer Analysis

Ali Ahmed Gitan, Rozli Zulkifli, Shahrir Abdullah, Kamaruzzaman Sopian
2014 The Scientific World Journal  
Pulsating twin jets mechanism (PTJM) was developed in the present work to study the effect of pulsating twin jets mixing region on the enhancement of heat transfer.  ...  Furthermore, the effect of pulsation frequency on surface temperature of flat hot plate in the midpoint between twin jets was studied experimentally.  ...  Conflict of Interests The authors declare that there is no conflict of interests regarding the publication of this paper.  ... 
doi:10.1155/2014/767614 pmid:24672370 pmcid:PMC3929578 fatcat:tsnl5bi4prg35jetbqq7ikgeim

Prediction of thickness and fouling rate in pulsating flow heat exchangers, using FLUENT simulator

Nasser Saghatoleslami, Mehdi Koolivand Salooki, Mohammad Ali Armin
2010 Korean Journal of Chemical Engineering  
Furthermore, the effect of pulsating flow on the crystallization fouling of calcium sulfate (CaSO 4 ) in the heat exchanger was also investigated, and the effect of operation of different amplitude of  ...  Heat exchangers are an important part of industrial processes as they handle a major portion of total energy consumption.  ...  Furthermore, numerically investigate the effect of pulsation frequency as well as the amplitude of the oscillations on the fouling of plate heat exchanger characteristics of turbulent pulsating flow over  ... 
doi:10.1007/s11814-009-0315-3 fatcat:o3d3urigofab7lvnixnan3wpii

Applications of nanofluids in geothermal: A review

Mohammad Hossein Ahmadi, Mahdi Ramezanizadeh, Mohammad Alhuyi Nazari, Giulio Lorenzini, Ravinder Kumar, Ravindra Jilte
2018 Mathematical Modelling and Engineering Problems  
According to the results of a study, the effect of using nanofluid on heat transfer rate became more significant at higher flow rates.  ...  In addition, using nanofluids can reduce the size of heat exchangers used in geothermal-based system.  ...  Experimental investigation of graphene oxide nanofluid on heat transfer enhancement of pulsating heat pipe.  ... 
doi:10.18280/mmep.050402 fatcat:gax7fmds4rcjfhfz4s7zmeekia

Study on application technology of pulsating heat pipe

Jianhong Liu, Fumin Shang, Kangzhe Yang, Chaoyue Liu, Yong Wu, L. Wang, V. Yepes
2021 E3S Web of Conferences  
Based on the analysis of a large number of research results at home and abroad, the application status of pulsating heat pipe technology is summarized in this paper, which can provide scientific guidance  ...  Pulsating heat pipe(PHP) has many advantages, such as small volume, simple structure, low cost, good heat transfer performance, it have great potential in the application of refrigeration, aerospace, waste  ...  enhanced heat transfer could been obtained by the two mutual incentive pulsating heat pipes.  ... 
doi:10.1051/e3sconf/202124801051 fatcat:4nygdhp42jh65p7jjf53pfqzei

Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition

Suvanjan Bhattacharyya, Sampad Gobinda Das, Himadri Chattopadhyay, Ali Cemal Benim, M. A. Moghimi, A. Mohamad, J. Taler, A.C. Benim, R. Bennacer, S.-H. Suh, R. de Lieto Vollaro, A. Vallati (+1 others)
2019 E3S Web of Conferences  
The current study investigates numerically the simultaneously developing unsteady laminar flow and heat transfer inside a twisted sinusoidal wavy microchannel.  ...  In comparison with steady flow, it was found that imposed sinusoidal velocity at the inlet can provide improved heat transfer performance at different amplitudes and frequencies while keeping the pressure  ...  It provides very high surface area to volume ratio, which enhances heat transfer rate. Extensive researches on micro-channel heat exchangers (MCHE) has been done till date.  ... 
doi:10.1051/e3sconf/201912801011 fatcat:dlrvf3ahz5dzthvwb44n3chaom

Localized And Time-Resolved Velocity Measurements Of Pulsatile Flow In A Rectangular Channel

R. Blythman, N. Jeffers, T. Persoons, D. B. Murray
2016 Zenodo  
Using two-dimensional, two-component particle image velocimetry, the current work intends to characterize the heat transfer mechanisms in pulsating flow with a mean Reynolds number of 48 by experimentally  ...  The exploitation of flow pulsation in micro- and mini-channels is a potentially useful technique for enhancing cooling of high-end photonics and electronics systems.  ...  ACKNOWLEDGMENT The authors would like to acknowledge the financial support of the Irish Research Council (IRC) under grant number EPSPG/2013/618.  ... 
doi:10.5281/zenodo.1338813 fatcat:m2oshdunh5fkhiekt32cf5w54u

The Influence of Pipe Types on The Thermal Performance of Flat-plat Closed Loop Pulsating Heat Pipe

Qingping Wu, Rongji Xu, Ruixiang Wang, Yanzhong Li, R. Weerasinghe, J. Wu, C.-H. Weng
2020 E3S Web of Conferences  
In this investigation, three FCLPHPs (L1, L2, and L3) were built to study the influence of cross section shapes on the heat transfer performance of FCLPHP.  ...  One (L1) of them has asymmetric pipe, the others (L2, L3) have symmetric pipes. The results indicate that the FCLPHP L1 has the best heat transfer performance.  ...  The researchers have carried out research on the factors affecting the heat transfer performance of pulsating heat pipe, which include the flow pattern of working fluid [3] , the thermal physical property  ... 
doi:10.1051/e3sconf/202019401014 fatcat:fozpcxhcc5hz5bcyzki465rgma
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