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Artykuły w czasopismach na temat „Absorber plate”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Aida, T., K. Kawazoe, and S. Toda. "Vibration Control of Plates by Plate-Type Dynamic Vibration Absorbers." Journal of Vibration and Acoustics 117, no. 3A (1995): 332–38. http://dx.doi.org/10.1115/1.2874455.

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In this paper, a new plate-type dynamic vibration absorber is presented for controlling the several predominant modes of vibration of plate (mainplate) under harmonic excitation, which consists of a plate (dynamic absorbing plate) under the same boundary condition as the main plate and with uniformly distributed connecting springs and dampers between the main and dynamic absorbing plates. Equations of motion of the system in the modal coordinates of the main plate become equal to those of the two-degrees-of-freedom system with two masses and three springs. Formulas for optimum design of the pl

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2

Zhong, Rumian, Jie Huang, Zhihui Zhao, and Shan Huang. "Negative Stiffness Composite Plate Design for Vibration Suppression." Buildings 15, no. 6 (2025): 904. https://doi.org/10.3390/buildings15060904.

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This study explores the design and analysis of a negative stiffness plate aimed at enhancing vibration suppression. The concept of the negative stiffness plate is illustrated through the implementation of periodic resonators embedded within a host plate, each incorporating a single vibration absorber. These absorbers generate shear forces and efficiently capture vibration energy when excited resonantly. To validate the effectiveness of these negative stiffness composite plates, numerical experiments were conducted. The findings reveal that the damping of the absorber can significantly influenc

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3

M, Aguilar-Castro, K., Macias-Melo, E. V, and Torres-Aguilar, C. E. "Analysis Thermal Behavior of a Locally Heated Solar Chimney." International Journal of Membrane Science and Technology 10, no. 2 (2023): 2850–57. http://dx.doi.org/10.15379/ijmst.v10i2.2976.

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This paper presents the thermal behavior of a partially heated solar chimney under hot-humid climate conditions. The solar chimney (SCH) is 2 m high and 0.8 m wide and consists of an absorber plate and a translucent plate. The SCH allows a cavity thickness variation from 0 to 0.28 m, an inclination angle variation from 0 to 90º, and allows varying the amount of energy absorbed by the absorber plate and translucent plate. These plates were heated by resistors, simulating a solar irradiance range of 225 to 900 W/m2 (absorber plate) and from 12.15 to 50 W/m2 (translucent plate). Twelve tests were

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4

Ozgen, Filiz, and Ayse Dayan. "Energy analysis of a solar air heater with an absorber plate made of porous material." Thermal Science 25, Spec. issue 2 (2021): 333–37. http://dx.doi.org/10.2298/tsci21s2333o.

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In this study, the energy analysis of a solar air heater with an absorber plate made of different obstacles was made. Absorber plate of the solar air heater was created with porous steel wool. Three different absorber plates were used for the experimental study. Complex plate (Type I) was used as the first type of absorber plate, less complex plate (Type II) as the second type absorber plate, and flat plate (Type III) the third type absorber plate. On these plates, which are manufactured as three different absorber plates, steel wools are placed in a complex and less complex way. One absorber

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5

Suwandono, Purbo, and Nova Risdiyanto Ismail. "Pengaruh Bentuk Permukaan Absorber Pelat Terhadap Produktivitas dan Efisiensi Solar Still." Jurnal Energi dan Teknologi Manufaktur (JETM) 2, no. 02 (2019): 25–30. http://dx.doi.org/10.33795/jetm.v2i02.42.

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Based on previous research, research on the development of solar distillation models is needed. Development of absorbent plates (absorber) using cast concrete material with fin, wave and flat models as a comparison. The fin and wave absorber plates can expand the surface, thereby increasing the intensity of solar radiation received by the absorber. Cast concrete is a porous material that can absorb sea water and make a thin layer, making it easier for the evaporation process and can improve solar distillation performance In this study using the experimental method. Solar still research by exam

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6

Velychkovych, Andrii, Ivan Petryk, and Liubomyr Ropyak. "Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String." Shock and Vibration 2020 (January 9, 2020): 1–7. http://dx.doi.org/10.1155/2020/3292713.

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Sucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiarity of the proposed design is the usage of thin plate packages as a bearing elastic element of the shock absorber. This approach to the elastic element’ design provides the shock absorber to be easy to manufacture and operate. Sucker-rod string protection from extra load will increase the sucker-rod pump plant efficiency in general. This study aims

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7

Zhu, Xuezhi, Zhaobo Chen, and Yinghou Jiao. "Optimizations of distributed dynamic vibration absorbers for suppressing vibrations in plates." Journal of Low Frequency Noise, Vibration and Active Control 37, no. 4 (2018): 1188–200. http://dx.doi.org/10.1177/1461348418794563.

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Dynamic vibration absorber is an ideal device for vibration control at specific frequencies. In order to get a robust vibration control performance, multiple or distributed dynamic vibration absorbers are usually used for suppressing vibrations in plate structures. Optimization methods for the single dynamic vibration absorber in various vibration systems had been proposed many years ago. However, the analytical optimization solutions with respect to the distributed dynamic vibration absorbers for the plate structures have not been found. In this paper, the optimization problems of the distrib

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8

Du, Yuan, Fuxin Jia, Yang Tang, Jiajun Zheng, Yucheng Zou, and Yong Ma. "A Semi-Analytical Method to Design a Dynamic Vibration Absorber for Coupled Plate Structures of Offshore Platforms." Journal of Marine Science and Engineering 13, no. 2 (2025): 283. https://doi.org/10.3390/jmse13020283.

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Coupled plate structures composed of stiffened plates and sub-plates have been widely used in marine engineering practice. Meanwhile, the low-frequency multi-linear spectrum vibration control of the coupled stiffened plate structures has become necessary and meaningful. However, the design efficiency of the dynamic vibration absorber of the corresponding structure is still low. In the present study, a mathematical model of coupled plate structures and a dynamic vibration absorber is introduced to improve design efficiency. Subsequently, an experiment is designed to verify the effectiveness and

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9

N. Jihad, Mohammed, Nabil J. Yasin, and Kadhum A. Jehhef. "The effect of using ribbed absorber plates on enhancing the heat transfer of solar chimneys." Journal of University of Shanghai for Science and Technology 23, no. 07 (2021): 1431–44. http://dx.doi.org/10.51201/jusst/21/07316.

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Under different geometrical features and in Iraqi environmental circumstances, a numerical and experimental investigation of a solar chimney was carried out the study that dealt with an important aspect, which is to increase the surface area of the absorbent plate while maintaining the outer dimensions and limits by using three model of absorber surface (flat plate, Triangular Vgrooved corrugated plate and trapezoidal corrugated absorber plate). the work was carried out using a single vertical solar chimney of a single room has a volume 27m3 modeling 1m3 placed on the southern wall of wooden c

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10

Sabri Hameed, Raed. "Theoretical and Experimental Analysis of Flat Plate Collector." University of Thi-Qar Journal for Engineering Sciences 3, no. 1 (2012): 53–62. http://dx.doi.org/10.31663/utjes.v3i1.108.

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In this work a flat plate collector was designed and manufactured with dimension of (100cm×160cm×20cm) and analyzed experimentally and theoretically. The designed FPC consist of Nine pipes with (2.223cm in diameter with 140cm long) welded above the plate to act as heat removal fluid passage ways. The flow inside the pipes can takes place by forced convection. However, certain energy absorbed by the plate is lost to atmosphere due to higher temperature of the plate. Effect of plate temperature on efficiency and top loss coefficient studied for different wind velocities and different air tempera

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11

., J. S. Khatik. "COMPARATIVE EXPERIMENTAL STUDY OF SIMPLE ABSORBER PLATE WITH ABSORBER PLATE HAVING CONCAVITIES." International Journal of Research in Engineering and Technology 03, no. 20 (2014): 13–15. http://dx.doi.org/10.15623/ijret.2014.0320004.

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12

Muhammad Amin Harun, Zafri Azran Abdul Majid, Zairul Azrul Zakaria, et al. "Performance Analysis of Flat Plate Base-Thermal Cell Absorber (FPBTCA): Low Thickness Design." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 96, no. 2 (2022): 122–33. http://dx.doi.org/10.37934/arfmts.96.2.122133.

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Research to improve flat plate solar collector performance such as design and material used continuously developed. This paper's objective is to analyze the performance of the thermal cell absorber attached to a flat plate absorber collector (FPBTCA) through a low thickness design. It will produce a lightweight and portable collector application with efficient temperature conversion duration and has energy storage ability. Stainless steel and aluminum materials with different thicknesses use as thermal cell absorbers then aluminum materials use as a flat plate absorber base-collector. The expe

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13

Tiwari, Swarnim, and Kamlesh Dubey. "CFD SIMULATION OF HEAT TRANSFER THROUGH A ABSORBER PLATE OF SOLAR AIR HEATER WITH ARTIFICIAL ROUGHNESS." INTERNATIONAL RESEARCH JOURNAL OF ENGINEERING & APPLIED SCIENCES 9, no. 1 (2021): 15–19. http://dx.doi.org/10.55083/irjeas.2021.v09i01004.

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Solar energy is abundantly available and its use in various applications has always been of great interest among the common man, designer, engineer and researchers. One of the applications among several is in heating of air. Hot air is of use in domestic and industrial purposes. The efficiency of any solar air heater can be understood as the ability of the solar air heater to transfer the heat from the absorber plate where the solar radiations are absorbed to the air flowing over this. Since the heat transfer is affected by the surface of the absorber plate, study of surface conditions becomes

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14

Kearney, Meghan, Jane Davidson, and Susan Mantell. "Polymeric Absorbers for Flat-Plate Collectors: Can Venting Provide Adequate Overheat Protection?" Journal of Solar Energy Engineering 127, no. 3 (2004): 421–24. http://dx.doi.org/10.1115/1.1979518.

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Venting and evaporative cooling are modeled as possible techniques for protecting polymer absorbers in single-glazed, flat-plate solar collectors from exceeding the material temperature limit during dry stagnation. Four venting options are considered: (I) venting above the absorber plate, (II) venting below, (III) dual venting, and (IV) venting with evaporative cooling. Results indicate that in hot, sunny conditions, venting may not provide adequate cooling to lower the absorber temperature to the relative thermal index of the polymeric materials currently in use or under consideration for thi

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15

Astawa, Ketut, and I. Gusti Ngurah Putu Tenaya. "Analisis performansi kolektor surya pelat datar dengan diameter lubang sirip berbeda sebagai impinging jet." Jurnal Energi Dan Manufaktur 14, no. 2 (2022): 49. http://dx.doi.org/10.24843/jem.2021.v14.i02.p03.

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Solar collector is a device that is able to absorb and transfer heat from solar energy to the working fluid. Solar collectors in general, use a mass flow rate of air that is parallel to the absorbent plate, the air entering the inlet will pass through the absorbent plate and exit directly through the outlet. To improve the performance of the solar collector, modifications were made, namely by adding perforated fins with various hole diameters. The hollow fin is intended as a place for hot fluid to flow in the collector. The solar collector used in this study is a flat plate solar collector. Th

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16

Xiao, He Ye, Mei Ping Sheng, and Ye Lei. "A New Type Dynamic Vibration Absorber to Reduce Broad-Band Vibration in Plates." Advanced Materials Research 148-149 (October 2010): 485–97. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.485.

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A new type dynamic vibration absorber, which consists of steel layer and variable cross section rubber layer fitted to plate by bolt through L-shape connection, is introduced firstly and applied to control vibration of plates at multi mode frequencies in this paper. The aim of the present paper is to study the energy absorbing ability of the new type dynamic vibration absorber and apply optimization method to obtain parameters of absorber which is excellent in absorbing energy. The coupling model of composite beam and plate is established by power flow method and energy of plate attenuated by

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17

Mahakud, Jayanarayan, and Balaram Kundu. "Two-Dimensional Analysis of Absorber Plates in Solar Collectors with a Nonlinear Plate Temperature at the Tube Section." Energies 17, no. 23 (2024): 5979. http://dx.doi.org/10.3390/en17235979.

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Many investigators have investigated flat-plate solar collector absorber plates based on one-dimensional heat flows. However, the shape of the absorber plate may always create a two-dimensional temperature distribution if it has a thin thickness. Hence, an analysis of the two-dimensional heat flow in absorber plates is always required. The current paper determines a closed-form solution for the energy equation to establish a two-dimensional energy flow for an absorber plate by considering a nonlinear temperature variation at the plate–tube section. The separation of the established variable me

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18

Medina Carril, Diego Manuel, José Gonzalo Carrillo Baeza, Ruben Dominguez Maldonado, and Francis Aviles Cetina. "Finite element analysis of a solar collector plate using two plate geometries." Ingeniería e Investigación 36, no. 3 (2016): 95. http://dx.doi.org/10.15446/ing.investig.v36n3.56071.

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The thermal behavior of an absorber plate in a solar collector is investigated using finite element analysis. The thermal behavior and efficiency of two absorber plate geometries are studied, using a typical solar collector with a rectangular profile as reference, and a proposed absorber plate with curved geometry. An analysis of the most important parameters involved in the design of the absorber plate was carried out, indicating that the curved geometry of the absorber plate yields an average efficiency ~25% higher than the conventional rectangular geometry. The results suggest that a curved

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19

Shbailat, Suhaib, and Mohammed Nima. "Effect of absorber plate height on the performance of solar chimney utilized with porous absorber and integrated with an insulated room." Thermal Science, no. 00 (2022): 117. http://dx.doi.org/10.2298/tsci211008117s.

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An experimental study has been carried out for testing the thermal performance and the thermal behavior enhancement of solar chimneys that can be achieved by adding metal foam. The solar chimney with test room system was located in Baghdad, Iraq, at latitude 33.3? N, longitude 44.4? E. In the experimental part of this study, outdoor tests were conducted from May to July (2021). On clear days, the tests were conducted from 9:00 am to 4:00 pm. The experimental side will compare the performance of two types of copper metal foam (10 and 40) pores per inch (PPI) heat absorber plates at three differ

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20

Hettema, C. D., Y. S. Shin, and K. S. Kim. "Viscoelastic Circular Plate Wave Guide Absorber." Journal of Vibration and Acoustics 113, no. 3 (1991): 383–86. http://dx.doi.org/10.1115/1.2930195.

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A waveguide absorber removes and dissipates vibrational energy from a structure by traveling waves. The performance of a wave guide absorber is determined by the driving point impedance. In this study a viscoelastic circular plate waveguide absorber is developed and it is shown that the driving point impedance of the viscoelastic wave guide absorber can be theoretically predicted using a Mindlin type plate theory. To validate the results of this study, viscoelastic circular plates were tested to determine their driving point impedance.

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21

Zhang, Xia, Shu Ning Duan, Mei Gen Cao, et al. "Design of Transformer Substation Low Frequency Sound Absorber and Test Study on Sound Absorption Property." Applied Mechanics and Materials 468 (November 2013): 134–40. http://dx.doi.org/10.4028/www.scientific.net/amm.468.134.

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In allusion to the characteristic that transformer noise is mainly low-frequency noise, firstly the sound absorber is studied and analyzed on aspect of materials, sound absorption structure cavity thickness and punching rate etc in standing wave tube laboratory, secondly transformer substation low-frequency sound absorber is presented, and finally sound absorption properties of absorber is verified through random incidence Test. The analyses and study indicates that: compared with thin plate resonance absorber and micropunching sound absorber, the sound absorption band width of transformer sub

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22

Mustafa, S. S. "The Performance and Efficiency of Flat Plate Collectors with Different Absorbers and Different Convection Heat Loss Levels." Material Science Research India 16, no. 3 (2019): 261–70. http://dx.doi.org/10.13005/msri/160309.

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The performance of a flat plate solar collector with thin absorber is studied. The temperature of the absorber and its variation along the local day time is obtained by solving a heat balance equation. The temperature of the working fluid is also estimated. A published solar source functionto predict the hourly daily incident solar irradiance on horizontal surface is considered. Five absorbers of different materials: Copper, Aluminum, Stainless steel, Glass and Mica are treated. Two cooling conditions at the absorber front irradiated surface are also taken into consideration. Factors affecting

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23

Li, Shui Lian, and Hong Xia Wang. "Studying the Effects on the Absorption Rate of Absorber Plate Having Different Surface Shapes." Applied Mechanics and Materials 641-642 (September 2014): 1010–15. http://dx.doi.org/10.4028/www.scientific.net/amm.641-642.1010.

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The aim of this study is to provide a remedy for the low absorption rate of absorber plate. This paper presents an experimental investigation and simulation of the optical path on the absorber plate with having different surface shapes. In the study an analysis of three types of absorber plate: a base flat-plate, V shape plate and the sinusoidal-corrugated absorber plate are presented. The results of the experiments were evaluated at the same time of the days. The comparisons of absorption rate of absorber plat were made among them. The present data showed that the absorption rate of the sinus

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24

Abdulamer, Dheya N. "Simulation of weather and metal of absorber plate Impact on the characteristics of Flat plate solar collector." Bilad Alrafidain Journal for Engineering Science and Technology 1, no. 1 (2022): 6–15. http://dx.doi.org/10.56990/bajest/2022.010102.

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In this research, EES software was used to simulate efficient model of solar collector for appropriate employing. The model of solar collector is treated with various absorber plate manufactured from Cu, Al- alloy or plain carbon steel and subjected into various ambient temperature. In addition, into efficiency of solar collector, the stagnet temperature of glass cover and absorber plate was calculated. Collector efficiency obviously appears convergence between simulations and experimental during solar collector has absorber plate from Cu or plain carbon steel. The efficiency of these two case

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Muhammad Amin Harun, Zafri Azran Abdul Majid, Zairul Azrul Zakaria, et al. "Study on Selection of a Suitable Material and The Parameters for Designing a Portable Flat Plate Base-Thermal Cell Absorber (FPBTCA)." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 85, no. 1 (2021): 71–92. http://dx.doi.org/10.37934/arfmts.85.1.7192.

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Several types of flat plate solar collectors have been designed and developed with various technical parameters involved in the design. The inappropriate flat plate solar collector parameter design and material chosen will affect its performance. Investigation on the effect of flat plate absorber collector material, glass thickness, air gap distance, thermal cell absorber thickness, and flat plate absorber base collector thickness on the performance of solar thermal collectors was conducted in this work. The experiment was performed using the solar simulator with solar radiation of 450 and 750

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O'Keefe, MJ, and JLA Francey. "Thermal Performance of Solar Collectors with EPDM Absorber Plates." Australian Journal of Physics 41, no. 4 (1988): 623. http://dx.doi.org/10.1071/ph880623.

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An experimental study of flat-plate solar collectors using ethylene, propylenediene monomer (EPDM) absorber plates is descn"bed. In spite of the high thermal resistance of this material the performance is found to compare well with metal absorbers and to be in agreement with the Hottel-Whillier-Bliss equation. There is, however, an observed increase in the heat loss coefficient for mass flow rates below a critical value.

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Abdul Hussein, Sarmad A., and Mohammed A. Nima. "NUMERICAL AND EXPERIMENTAL INVESTIGATION OF SEMICIRCULAR SOLAR UPDRAFT TOWER SYSTEM EMPLOYING POROUS COPPER METAL FOAM." Journal of Engineering and Sustainable Development 27, no. 5 (2023): 596–614. http://dx.doi.org/10.31272/jeasd.27.5.4.

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The numerical and experimental study was carried out under Iraqi weather conditions to verify the improvement of the performance of the solar updraft tower system SUTS by introducing porous metal foam as a heat-absorbent plate. a semicircular basin of the solar collector was divided into two equal identical quarters. A porous foam material was fixed on one of the basins while the other basin was fixed on a traditional copper plate. The positions of the metal foam absorber plate are changed with two inclination angles (0֯ and 18֯) and the optimum position is achieved when it gives the highest t

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28

Shi, Yan Hua, Liu Juan Zhu, Yuan Zhe Cao, and Ming Cheng Shen. "Numerical Simulation Study on Optimization of Solar Flat-Plate Collector." Applied Mechanics and Materials 635-637 (September 2014): 523–27. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.523.

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Solar flat-plate collector is an important component in solar-thermal system, and its optimization is critical for the efficiency of energy utilization. In this paper, a comparative study on the thermal performance of solar flat-plate collector was carried out by numerical simulation under the conditions of different thicknesses and materials of absorber plate. The results show that the increase of absorber plate thickness contributes to restraining convection loss. The collector efficiency levels off when the absorber plate thickness reaches a certain value. In considering thermal performance

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Abdul Hussein, Sarmad A., and Mohammed A. Nima. "Experimental Analysis of Air Inlet Height Variation in a Solar Tower system Using Plate and Metal Foam Absorber." Al-Nahrain Journal for Engineering Sciences 25, no. 3 (2022): 120–29. http://dx.doi.org/10.29194/njes.25030120.

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The experimental analysis is conducted under the Iraqi climate conditions to investigate the performance enhancement of a solar updraft tower system (SUTS) using the porous copper foam as an absorber plate and conventional absorber plate with absorber inclination angle of 18°. In the present work, a semicircular collector is divided into two identical quarter thermal collectors to become two identical SUTS. One of the quarter circular thermal collectors contains on the metal foam as an absorber plate, while the other quarter collector on the conventional flat copper absorber plate. In this stu

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Kocer, Abdulkadir, Uğur Ercan, Zeki Yetgin, and Filiz Karaomerlioglu. "Development of a New Correlation Model for Heat Transfer in Solar Air Heater with Corrugated Absorber Plates Using Swarm Optimization." Applied Sciences 14, no. 22 (2024): 10556. http://dx.doi.org/10.3390/app142210556.

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Solar air heaters play a crucial role in distributing heated air at low to medium temperatures. The heart of these systems lies in the absorber plate, which directly absorbs solar heat energy and then efficiently transfers it to the flowing air. However, the challenge lies in achieving optimal thermal efficiency by modifying the absorber plate roughness. Traditional smooth absorber plates have a limited contact area for heat transfer, leading to suboptimal performance. Using passive techniques, such as corrugation on the absorber plate, may increase thermal efficiency by creating turbulence in

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Yadav, Kapil Dev, and Radha Krishna Prasad. "Arc Shaped Wire Roughened Absorber Plate." Progress in Solar Energy and Engineering Systems 4, no. 1 (2020): 1–17. http://dx.doi.org/10.18280/psees.040101.

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Rao, P. Bhagavan. "CFD Analysis of Solar Absorber Plate." International Journal for Research in Applied Science and Engineering Technology 6, no. 4 (2018): 3169–78. http://dx.doi.org/10.22214/ijraset.2018.4526.

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Liao, S. B., and G. J. Yin. "Reflectance of a chiral plate absorber." Applied Physics Letters 62, no. 20 (1993): 2480–82. http://dx.doi.org/10.1063/1.109325.

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Li, Xi, and Danfeng Feng. "Research on Plate Viscoelastic Waveguide Absorber." Advanced Science Letters 12, no. 1 (2012): 285–88. http://dx.doi.org/10.1166/asl.2012.2787.

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Knop, C. M., Y. B. Cheng, and E. L. Ostertag. "An Absorber-Wall Parallel-Plate Waveguide." IEEE Transactions on Microwave Theory and Techniques 34, no. 7 (1986): 761–66. http://dx.doi.org/10.1109/tmtt.1986.1133438.

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Gaudino, Eliana, Antonio Caldarelli, Roberto Russo, and Marilena Musto. "Formulation of an Efficiency Model Valid for High Vacuum Flat Plate Collectors." Energies 16, no. 22 (2023): 7650. http://dx.doi.org/10.3390/en16227650.

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High Vacuum Flat Plate Collectors (HVFPCs) are the only type of flat plate thermal collectors capable of producing thermal energy for middle-temperature applications (up to 200 °C). As the trend in research plans is to develop new Selective Solar Absorbers to extend the range of HVFPC application up to 250 °C, it is necessary to correctly evaluate the collector efficiency up to such temperatures to predict the energy production accurately. We propose an efficiency model for these collectors based on the selective absorber optical properties. The proposed efficiency model explicitly includes th

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Billy, Anak Sup, Tanti Zanariah Shamshir Ali, Mohd Farid Zainudin, and Abu Bakar Rosli. "Experimental Study of Water Heating Efficiency between Aluminium and Copper Absorber Plate in Solar Flat Plate Collector." Applied Mechanics and Materials 660 (October 2014): 709–13. http://dx.doi.org/10.4028/www.scientific.net/amm.660.709.

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Solar water heating using flat plate collector (FPC) is the widest application that had been used in residential and commercial area. The material for the absorber plate in FPC should have good thermal conductivity to ensure a high value for the heat removal yet able to store heat slightly high during minimum solar radiation period. An experimental of FPC water heating is conducted using copper and aluminium as absorber plate. The plates were exposed under intense sun radiation more than 800w/m2. The analysis is performed on the relationship between the material and the temperature difference

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Tian, Feng, Xia Ma, Han Hao, et al. "Broadband Bi-Directional Polarization-Insensitive Metamaterial Absorber." Materials 14, no. 23 (2021): 7339. http://dx.doi.org/10.3390/ma14237339.

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Conventional metamaterial absorbers eliminate the transmitted electromagnetic wave by attaching the metal plate with the unidirectional absorption performance; these absorbers limit the practical applications to a large extent. In this paper, we present a broadband bi-directional metamaterial absorber by etching chip resistors on the resonators for expanding the bandwidth, and two orthogonal I-shaped structures are pasted on the both sides of the ultra-thin substrate (FR-4) instead of the metal plate for enhancing absorptance of the absorber. Simulated results show that absorptance of the desi

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Golovastov, S. V., and D. M. Alexandrova. "Absorption-based Mono-ethanolamine Treatment of Associated Petroleum Gas. Part 1." Mechanical Engineering and Computer Science, no. 5 (July 30, 2019): 1–10. http://dx.doi.org/10.24108/0519.0001498.

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The paper presents an absorption-based method to treat associated petroleum gas (APG) using the mono-ethanolamine (MEA) as an absorbent. Involving oiler’s specific data in the southern regions of Russia, an APG treating unit has been developed to take out hydrogen sulfide. The extracted hydrogen sulfide can be used to obtain elemental sulfur. The development object is a treating APG unit.The work objective was to develop an absorber for APG treating to take out hydrogen sulfide by means of regenerated MEA aqueous solution. The work was aimed at reducing environmental pollution when using assoc

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Zhang, Jing Jing, Dan Dan Zhao, Lu Chun Wan, Bao Huai Zhang, and Ya Ping Chen. "Numerical Study on Heat and Mass Transfer of Plate Falling Film Absorber with Wire-Meshed Fins." Applied Mechanics and Materials 204-208 (October 2012): 4305–14. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.4305.

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A mathematical model of heat and mass transfer process in plate falling film absorber with wire-meshed fins was developed. The model could predict temperature and concentration distribution as well as the solution side heat transfer coefficient and the absorption rate. The results verify that heat and mass transfer performance of the plate falling film absorber with wire-meshed fins is better than the past absorber. Compared with the plate falling film absorber without fins, heat transfer coefficient of the absorber in this article increases 1.06 times and the absorption rate increases 2.32 ti

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Varun, Kumar, G. Manikandan, Kanna Rajesh, and Venkata Poluru. "Experimental analysis of solar air heater using polygonal ribs in absorber plate integrated with phase change material." Thermal Science, no. 00 (2021): 345. http://dx.doi.org/10.2298/tsci210518345v.

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Heat transfer enhancement in Solar Air Heater (SAH) has been investigated by implementing rough surfaces in the absorber plate. We use paraffin wax is used as Phase Change Material (PCM) integrated with SAH as a Thermal Energy Storage (TES) system. A maximum convective heat transfer is attained during the daytime and retained as latent heat (LH) to discharge heat during OFF radiation. In this investigation, two types of absorber plates were employed such as flat & polygonal-shaped ribs at the test section. Further to investigate the heat transfer enhancement, the research was conducted wit

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Cao, Rui Bing, Ya Ping Chen, and Jia Feng Wu. "Simulation of Vapor Absorption of Aqueous Libr Solution on Alternate Heat and Mass Transfer Surfaces of Corrugated Plates and Mesh Pecking." Advanced Materials Research 989-994 (July 2014): 831–36. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.831.

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The traditional tube-shell absorber is relatively too bulky to be used in a small absorption chiller for solar air conditioning. As the outer-surface of solution film on the traditional absorber surface is easier to be saturated, several alternate heat and mass transfer absorber schemes have been proposed. However, the film-inversion absorber uses only half surfaces while the dual-side film-inversion absorber scheme is of good performance but too complicated to fulfill. The scheme using stainless steel mesh packing as the film guider is much easier and more uniform in distributing film, and it

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Ho, Chii-Dong, Hsuan Chang, Ching-Fang Hsiao, and Yu-Chen Lin. "Optimizing Thermal Efficiencies of Double-Pass Cross-Corrugated Solar Air Heaters on Various Configurations with External Recycling." Energies 14, no. 13 (2021): 4019. http://dx.doi.org/10.3390/en14134019.

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The effect of external-recycle operations on the thermal performance of double-pass cross-corrugated solar air heaters (SAH) under different operating conditions was investigated experimentally and theoretically. Additionally, the simultaneous ordinary equations were solved analytically for each proposed configuration. Four recycling types are introduced for improving the solar thermal performance with different external recycle processes, which are expected to enhance the heat transfer coefficient with a convective turbulent flow between the air and the absorber in the present study. Using re

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Alfin amanda, Alfin Amanda, Nova R. Ismail, and M. Agus Sahbana. "ANALISA BENTUK PERMUKAAN PELAT PENYERAP SPONGE TERHADAP KINERJA SOLAR STILL DOUBLE SLOPE TIPE V." Jurnal Energi dan Teknologi Manufaktur (JETM) 3, no. 01 (2020): 17–22. http://dx.doi.org/10.33795/jetm.v3i01.51.

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This study aims to determine the surface shape of the sponge absorbent plate to the performance of the solar still double slope type V. The surface shape of the sponge absorbent plate uses sponge models of triangles, fins, waves and flat with a thickness of 5 cm. experimental Tests methods use direct solar radiation and using sea water is used as raw material. The experiment produced 4,527 liters of condensate water with highest solar still efficiency of 50.14% using a sponge wave absorber plate with an area of 13,940.76 cm2. The Sea water disability to flow capillary to the surface of the abs

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Andriy, Kontsevoy, and Kontsevoi Sergii. "Modeling of a two-flow gas purification from carbon oxides (IV) by methyldiethanolamine solution." Technology audit and production reserves 5, no. 3(55) (2020): 34–37. https://doi.org/10.15587/2706-5448.2020.214440.

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<em>The object of research is the stage of purification of process gas of ammonia production with a capacity of 1360–1500 t/day in a two-section plate absorber. The paper substantiates the possibility to replace the monoethanolamine (MEA) absorbent solution with the activated solution of methyl diethanolamine (aMDEA) on the example of the Ukrainian multi-tonnage production, working under the two-flow purification scheme. One of the most problematic areas is the lack of a mathematical model for the absorption of carbon monoxide (IV) by a new absorbent for two-flow purification schemes. In

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Zaman, Izzuddin, Muhammad Mohamed Salleh, Bukhari Manshoor, Amir Khalid, Mohd Zamani Ngali, and Mohd Shahrir Mohd Sani. "Theoretical Modelling of Plate with Attached Vibration Absorber." Applied Mechanics and Materials 773-774 (July 2015): 33–37. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.33.

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There are many ways to control the vibration of plate structure. Conventional approaches that include structural alterations are frequently time consuming and costly. One of the common schemes is using vibration absorber attached to a structure. In this paper, a mathematical model is developed to determine the frequency response of fixed-fixed ends plate with attached vibration absorber. A finite element analysis was performed and compared with the theoretical predictions and showed that there was good resemblance. The results demonstrated that the addition of vibration absorber onto plate can

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Mohd Azmi, Mohd Syahriman, Zafri Azran Abdul Majid, and Mohd Hafidz Ruslan. "DEVELOPMENT AND PERFORMANCE OF A SOLAR DRYER HYBRID PHOTOVOLTAIC THERMAL SYSTEM." Jurnal Teknologi 85, no. 1 (2022): 53–61. http://dx.doi.org/10.11113/jurnalteknologi.v85.14845.

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A solar dryer hybrid photovoltaic thermal (PV/T) system has been designed, built and its performance has been studied. This research aims to develop a stand-alone solar dyer system, portable and less maintenance. This system consists of three main parts; PV/T system with configuration-Z thermal absorber plate, multi-direction solar collector with cross absorber plate and drying chamber. Solar thermal collector which was designed in the system is called a multi-direction solar collector because the solar radiation does not get the heat through the upper part but also on the lower sides. This si

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Chhaparwal, Gaurav Kumar, Ankur Srivastava, and Ram Dayal. "Numerical study of an asymmetrically heated rectangular duct with suspended cylinders." MATEC Web of Conferences 240 (2018): 04002. http://dx.doi.org/10.1051/matecconf/201824004002.

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An asymmetrically heated (only one side of the duct is heated) solar air heater duct is numerically investigated using openFOAM to study the effect of passive turbulators (suspended cylinders) installed within the boundary layer close to the absorber plate to enhance heat transfer from it. Vortex flow is created behind the suspended cylinders, which disturbs the boundary layer and causes mixing of hot stream lines near the surface with relatively cold stream away from the absorber plate. Diameter of the suspended cylinders and its distance from the absorber plate is varied to study its effect

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Syahruddin, Andi Syahrinaldy, Jalaluddin Jalaluddin, and Azwar Hayat. "Performance Analysis Of Solar Water Heating System With Plate Collector Integrated Pcm Storage." EPI International Journal of Engineering 3, no. 2 (2021): 143–49. http://dx.doi.org/10.25042/epi-ije.082020.09.

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Availability of solar energy as a renewable energy source is very abundant and inexhaustible. Solar water heater is an equipment that utilizes solar energy as a source of energy. The thermal performance of a solar water heater system using absorber plate with phase change material (PCM) as thermal energy storage is presented in this study. Two design of solar water heater collectors with absorber plate variations, i.e. an absorber plate with PCM storage and absorber plate without PCM storage were investigated experimentally and numerically simulation. First, the material properties of paraffin

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Al-Dulaimi, Mustafa J., Areej H. Hilal, Husam A. Hassan, and Faik A. Hamad. "Energy and Exergy Investigation of a Solar Air Heater for Different Absorber Plate Configurations." International Journal of Automotive and Mechanical Engineering 20, no. 1 (2023): 10258–73. http://dx.doi.org/10.15282/ijame.20.1.2023.08.0793.

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In this paper, the effect of using different configurations of absorber plate, including one line finned flat absorber and two lines finned absorber plate, on the thermal performance of a flat plate – double passing solar air heater was investigated experimentally. L- shape fins are soldered on the absorber plate to roughen the absorber plate and generate vortices to enhance the heat transfer between the working fluid (air) and absorber plate to improve the thermal efficiency. The outdoor experimental test was carried out during February and May under the weather conditions of Baghdad city (Lo

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