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Journal articles on the topic 'Circulating water temperature'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Song, Xun Cheng, Xiao Long Xu, Sha Sha Hu, and Zhi Chuan Guan. "Full Transient Features of Heat Transfer and Sensitivities on Deep Water Wells." Advanced Materials Research 524-527 (May 2012): 1423–28. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1423.

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Wellbore temperature is significant to well program and safety drilling for deep water drilling operations. On the basis of transient heat transfer mechanisms involved in deep water drilling among wellbore and formation and sea water, wellbore temperature profile, especially near sea bed and sensitivities to drilling fluid circulating duration, inlet temperature, water depth, water temperature, riser insulation and drilling fluid specific heat capacity have been analyzed via this model. Analysis show that deep-water wellbore temperature is much lower than a land well, the temperatures above se

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2

Xi, Xinming, Shixiong An, Lei Xu, Xiaoze Du, Huimin Wei, and Hongchen Sun. "Suitable Analysis of Micro-Increased Capacity Model on Cold-End System of Nuclear Power Plant." Energies 16, no. 20 (2023): 7188. http://dx.doi.org/10.3390/en16207188.

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The cold-end system of a nuclear power plant is a key complex node connecting the power generation system with the variable environmental conditions, and its operation, economy, and stability have become the main obstacles to further improving the performance of the first and second circuits. The current research on the interactions between the cold-end system and the thermal cycle of nuclear power mainly adopts the micropower model, while the existing condenser model does not take into account the influence of the turbine exhaust resistance and exhaust flow and other factors on the condenser

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3

Lv, Jing, and Jie Yang. "Designing and Researching of Gas Cooler in Trans-Critical Carbon Dioxide Water Heater." Advanced Materials Research 171-172 (December 2010): 368–73. http://dx.doi.org/10.4028/www.scientific.net/amr.171-172.368.

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In this paper a gas cooler for trans-critical carbon dioxide water heater was designed and calculated according to the theory basis for the optimal design. The characteristic parameters of gas cooler in heat pump hot water system were compared and analyzed, applying the data from trans-critical carbon dioxide water heater test bed, under one-time heating condition, by different flow of chilled water and hot water, different inlet temperatures of chilled water and hot water. To sum up, coefficient of performance can be increased by increasing the chilled water inlet temperature or hot water cir

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4

Taguchi, Akiko, Jebadurai Ratnaraj, Barbara Kabon, et al. "Effects of a Circulating-water Garment and Forced-air Warming on Body Heat Content and Core Temperature." Anesthesiology 100, no. 5 (2004): 1058–64. http://dx.doi.org/10.1097/00000542-200405000-00005.

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Background Forced-air warming is sometimes unable to maintain perioperative normothermia. Therefore, the authors compared heat transfer, regional heat distribution, and core rewarming of forced-air warming with a novel circulating-water garment. Methods Nine volunteers were each evaluated on two randomly ordered study days. They were anesthetized and cooled to a core temperature near 34 degrees C. The volunteers were subsequently warmed for 2.5 h with either a circulating-water garment or a forced-air cover. Overall, heat balance was determined from the difference between cutaneous heat loss (

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5

Wang, Zhonghua, Zenggang Yue, Wei Wang, et al. "Study on the Influence of Circulating Water Bypass on the Thermal and Anti-Freezing Characteristics of High-Level Wet Cooling Tower." Energies 17, no. 9 (2024): 2073. http://dx.doi.org/10.3390/en17092073.

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When heating units are operated in winter, the extreme conditions, such as deep peak regulation and large extraction, can easily lead to a low unit load and severe icing in the wet cooling tower, which threatens the safe operation of the unit. Therefore, it is necessary to study the anti-freezing characteristics of the wet cooling tower. In this paper, a three-dimensional numerical model of a high-level, natural draft wet cooling tower is developed based on the constant heat load method. The influence of withdrawing a certain percentage of circulating water into the bypass on the cooling perfo

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Sanaev, Shokhzodbek Sobirovich, Mukhiddin Chorievich Tursunov, and Javokhir Ibrokhim ogli Botirov. "IMPROVING THE CIRCULATING WATER COOLING DEVICE IN THE INDUSTRIAL ENTERPRISE." Modern Scientific Research International Scientific Journal 1, no. 7 (2023): 206–12. https://doi.org/10.5281/zenodo.10031944.

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Currently, cooling systems with cooling tower are quite common (up to 70%). In them, water is used repeatedly, but part of the water is lost when it evaporates, and therefore it will be necessary to maintain the system regularly with clean water. Cooling tower circulating water partially evaporates and convection, that is, a decrease in temperature due to heat exchange with air. Further the economic feasibility of having additional cooling tower capacity to allow for economizer cooling, in light of reduced tower capacity at lower temperatures [3] is investigated. Creating rational water use sc

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7

Lv, Ziqiang, Jiuju Cai, Wenqiang Sun, and Lianyong Wang. "Analysis and Optimization of Open Circulating Cooling Water System." Water 10, no. 11 (2018): 1592. http://dx.doi.org/10.3390/w10111592.

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Open circulating cooling water system is widely used in process industry. For a system with a fixed structure, the water consumption and blowdown usually change with the varying parameters such as quality and temperature. With the purpose of water saving, it is very important to optimize the operation strategy of water systems. Considering the factors including evaporation, leakage, blowdown and heat transfer, the mass and energy conservation equations of water system are established. On this basis, the quality and temperature models of makeup and blowdown water are, respectively, developed. T

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8

Li, Zhi Wei, Hong Zhou He, and Huang Huang Zhuang. "Experimental Study on Compact External Heat Exchanger for a 4 MW_th Circulating Fluidized Bed Combustor." Applied Mechanics and Materials 448-453 (October 2013): 3259–69. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.3259.

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The characteristics of the external heat exchanger (EHE) for a 4 MWth circulation fluidized bed combustor were studied in the present paper. The length, width and height of EHE were 1.5 m, 0.8 m and 9 m, respectively. The circulating ash flow passing the heating surface bed could be controlled by adjusting the fluidizing air flow and the heating transferred from the circulating ash to the cooling water. The ash flow rate passing through the heat transfer bed was from 0.4 to 2.2 kg/s. The ash average temperature was from 500 to 750 °C. And the heat transfer rate between the ash and the cooling

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9

Sanford, MM. "Rewarming cardiac surgical patients: warm water vs warm air." American Journal of Critical Care 6, no. 1 (1997): 39–45. http://dx.doi.org/10.4037/ajcc1997.6.1.39.

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BACKGROUND: Hypothermia is experienced by 60% to 90% of adult patients after surgery. The detrimental physiological consequences of prolonged hypothermia are a significant risk for cardiac surgical patients. OBJECTIVE: To compare the effect of a warmed convective-air blanket with that of a warmed circulating-water blanket on the rates of increase in skin and core temperatures and on total rewarming time in patients with hypothermia after cardiac surgery. METHODS: A quasi-experimental, repeated-measures design was used to study rewarming in 76 adult patients who were hypothermic after cardiac s

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10

Mbawala, Shanel, Wambura Mwita, and Alexander Mtawa. "Stabilisation of Incubation Temperature in Hot Water Chicken Egg Incubator." Mbeya University of Science and Technology Journal of Research and Development 5, no. 4 (2024): 1–14. https://doi.org/10.62277/mjrd2024v5i40069.

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In this study, the existing egg incubator at Songwe Geothermal Hot Spring was improved by stabilising incubator temperature, hence improving hatching efficiency. The improved hot water egg incubator with a capacity of 280 eggs was designed, fabricated, and tested. Incubator temperature was stabilised by a variable flow rate of circulating hot water that corresponds to changes in incubator temperature. The flow rate of circulating hot water (1.5–2 litres/min) was proportional to the temperature of the incubator. A heat balance equation was formulated to quantify the heat transferred from hot wa

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11

Nicolis, Imani N., Corinna N. Beale, Willie A. Bidot, Michael Esmail, and Scott E. Perkins. "Performance and Consistency of Circulating Warm Water Blankets for Rodents." Journal of the American Association for Laboratory Animal Science 61, no. 1 (2022): 96–100. http://dx.doi.org/10.30802/aalas-jaalas-21-000073.

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General anesthesia as used for rodent research can have adverse effects on physiologic mechanisms. Thermoregulation is often greatly inhibited, with resultant deleterious effects on cardiac and respiratory function. These potential effects can be mitigated by providing external heat support. The circulating warm water blanket and associated heat pump are often used in rodent procedures. The current study demonstrated that the heating pump and water blanket require quality control assessment to ensure adequate function. Our data showed that of the 6 pumps tested, 5 were able to achieve a temper

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Vidal, Jeanne, Régis Hehn, Carole Glaas, and Albert Genter. "How Can Temperature Logs Help Identify Permeable Fractures and Define a Conceptual Model of Fluid Circulation? An Example from Deep Geothermal Wells in the Upper Rhine Graben." Geofluids 2019 (July 10, 2019): 1–14. http://dx.doi.org/10.1155/2019/3978364.

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Identifying fluid circulation in fracture zones (FZs) is a key challenge in the extraction of deep geothermal heat from natural reservoirs in the Upper Rhine Graben. This study focuses on permeable FZs present within the granitic basement penetrated by deep geothermal well GPK-1 at Soultz and GRT-1 and GRT-2 at Rittershoffen (France). The various temperature (T) log datasets acquired from these wells during production and at equilibrium, with the associated flow logs, allow for the unique opportunity to interpret fluid circulation at the borehole scale. All permeable FZs identified by permeabi

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Vidal, Jeanne, Régis Hehn, Carole Glaas, and Albert Genter. "How Can Temperature Logs Help Identify Permeable Fractures and Define a Conceptual Model of Fluid Circulation? An Example from Deep Geothermal Wells in the Upper Rhine Graben." Geofluids 2019, Special issue: Geofluids and Energy for the XXI Century (2019): 14. https://doi.org/10.1155/2019/3978364.

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Identifying fluid circulation in fracture zones (FZs) is a key challenge in the extraction of deep geothermal heat from natural reservoirs in the Upper Rhine Graben. This study focuses on permeable FZs present within the granitic basement penetrated by deep geothermal well GPK-1 at Soultz and GRT-1 and GRT-2 at Rittershoffen (France). The various temperature (T) log datasets acquired from these wells during production and at equilibrium, with the associated flow logs, allow for the unique opportunity to interpret fluid circulation at the borehole scale. All permeable FZs identified by permeabi

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14

Wang, Qing Yang, Tian Yu Sun, Jian Zhang, and Jian Xing Ren. "Experimental Research on the Effect of Cross-Wind to Wet-Cooling Tower Performance." Advanced Materials Research 860-863 (December 2013): 1412–15. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1412.

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Environmental cross-wind has a influence on cooling capacity of wet cooling tower to a great extent in power plant.The variation of circulating-water temperature difference (Δt) and cooling coefficient of efficiency(η) with cross-wind velocity, circulating water inlet temperature and flow rate, are shown under cross-wind conditions, compared with cases without wind. By using experimental platform of cooling water system based on 300MW thermal power unit,it is found that with cross-wind velocity increasing,cooling temperature difference and cooling efficiency decrease first then increase at the

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15

Jeong, Yong-Dae, and Yujin Nam. "Performance test of PVT-water system considering ambient air and circulating water temperature." KIEAE Journal 15, no. 5 (2015): 83–88. http://dx.doi.org/10.12813/kieae.2015.15.5.083.

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16

Liu, Jian Tao, Xiao Cheng Ma, Kun Kun You, Jian Xing Ren, and Yong Wen Yang. "Analysis on Circulating Water Heat Utilization Technology in Thermal Power Plants." Advanced Materials Research 753-755 (August 2013): 2727–30. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2727.

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The thermal power unit is the major unit in Chinas power supply. Circulating water has large low-temperature waste-heat which can be recycled. The principles of water source heat pump technology is analyzed, characteristic of circulating water system in thermal power unit is studied. Then two kinds of connection methods between circulating water system and water source heat pump (WSHP) are presented.

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Jiang, Xiao Ling, Zong Ming Lei, and Qing Bao Meng. "Evaluation of Equivalent Circulating Density in Deep Water Dynamic Kill Drilling." Applied Mechanics and Materials 121-126 (October 2011): 3048–52. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3048.

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Dynamic kill drilling is a technology which is applied in order to control the deep water drilling shallow gas or shallow wells flowing by establish a normal cycle automatically in the deepwater shallow wells section. Equivalent circulating density (ECD) is an important parameters to control the bottom hole pressure, in the ECD estimate, if we don’t consider the effects of low temperature on rheological parameters of drilling fluid, it will result in errors in ECD estimates. Considering the impact of low temperature on the rheological parameters, this paper determines the temperature, rheologi

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18

Oh, Sunhee, Yong Cho, and Rin Yun. "Optimization of a Raw Water Source Heat Pump for a Vertical Water Treatment Building." International Journal of Air-Conditioning and Refrigeration 23, no. 01 (2015): 1550002. http://dx.doi.org/10.1142/s2010132515500029.

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The optimum operation conditions of a raw water source heat pump for a vertical water treatment building were derived by changing operation parameters, such as temperature of thermal storage tank, temperature and inlet air flow rate of the conditioned spaces, and circulating water flow rate between thermal storage tank and air handling unit (AHU) through dynamic simulator of a transient system simulation program (TRNSYS). Minimum electric power consumption was found at temperature of thermal storage tank, which was ranged 18–23°C for cooling season. In heating season, temperature 40–45°C bring

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19

Li, Zhao, Huimin Wei, Tao Wu, and Xiaoze Du. "Optimization for Circulating Cooling Water Distribution of Indirect Dry Cooling System in a Thermal Power Plant under Crosswind Condition with Evolution Strategies Algorithm." Energies 14, no. 4 (2021): 1167. http://dx.doi.org/10.3390/en14041167.

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Crosswind has an adverse impact on the performance of an indirect dry cooling system. In order to mitigate the adverse influence, this study redistributed the circulating cooling water among air-cooled heat exchanger sectors so that the performance of the indirect dry cooling system could be improved. An evolution strategies algorithm combined with numerical effectiveness-based heat exchanger model was established to minimize the operation costs of the whole system. Based on a 660 MW practical power plant, optimal circulating cooling water operation strategies under varied crosswind speeds and

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20

Liu, He, Cui, and Zhou. "Effects of Different Temperatures on the Softening of Red-Bed Sandstone in Turbulent Flow." Journal of Marine Science and Engineering 7, no. 10 (2019): 355. http://dx.doi.org/10.3390/jmse7100355.

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The rates of chemical reactions are highly dependent on temperature, meaning that the actual geological rock mass is affected by different temperatures. Only when the temperature effect is considered can the mechanism of the influence of temperature on the interaction between water and rock be further understood. It was found that the condition of turbulent flow is more likely to promote the softening of red-bed sandstone than the conditions of laminar flow and static water in an experimental study on the softening effects of different flow patterns on red-bed sandstone. Therefore, based on a

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21

Lu, Yesheng, Junning Cui, Jiubin Tan, Xingyuan Bian, and Yamin Zhao. "Temperature Fluctuation Attenuation of Circulating Cooling Water Using Dynamic Thermal Filtering." Applied Sciences 10, no. 15 (2020): 5338. http://dx.doi.org/10.3390/app10155338.

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The Demand for circulating cooling water (CCW) with high temperature stability and a quick response to temperature control is essential for precision engineering, so a dynamic thermal filtering method is proposed in this paper. Some CCW is bypassed, blocked, and used as a thermal capacity medium, and the temperature fluctuation of CCW is significantly reduced by heat exchanging with the medium. The temperature of the medium dynamically follows the set value of the CCW temperature by real time updating, and so realizes a quick CCW temperature control response. The attenuation ratio of temperatu

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22

Sunaina, Sailani. "TO STUDY AND ANALYSIS OF FLAT PLATE SOLAR WATER HEATER PV CELLS." International Journal of Engineering Technologies and Management Research 5, no. 3 (2018): 159–65. https://doi.org/10.5281/zenodo.1216875.

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<strong><em>In this study we are obtaining the maximum temperature of solar water heater using of PV cells. The flat plate solar water heater are consisting using several parts such as collector , flat plate glass , circulating pump, PV cells , frame . The centrifugal pump is operated by PV Cells. Water temperature is measured by digital temperature meter. Hot water is storage in container. The most elements of these are a clear front cover, collector housing associated an absorbent material</em>.</strong>

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Cui, She-qiang, Chao Zhou, and Hamed Sadeghi. "Investigation of thermal effects on the saturated shear behaviour of a clayey sand-structure interface." E3S Web of Conferences 544 (2024): 12002. http://dx.doi.org/10.1051/e3sconf/202454412002.

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The mechanical behaviour of soil-structure interfaces at various temperatures plays a key role in predicting the performance of energy piles, such as their ultimate bearing capacity and settlement under heating and cooling. The experimental data was limited in the literature, and previous studies used clay and clean sand. In this study, a modified direct shear apparatus that can control temperature was developed. To control interface temperature, a refrigerated/heated circulating bath is connected to channels in the lower shear box and then heated/cooled water is circulated. The interface can

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Yang, Pang Wen. "Research on Organic Rankine Cycle-Based Industrial Circulating Water Cogeneration System." Journal of Engineering Research and Reports 25, no. 10 (2023): 68–80. http://dx.doi.org/10.9734/jerr/2023/v25i101002.

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A fertilizer plant wastewater recycling as a research object, the establishment of ORC (Organic Rankine Cycle, referred to as ORC) cogeneration system, using MATLAB software to simulate the operation of the system was found to change the evaporation temperature, condensing temperature, superheat and subcooling degree of the four factors will have an impact on the performance of the system, in which the evaporation temperature and degree of superheat to improve the performance of the system, the condensing temperature and degree of subcooling have a negative effect on the system efficiency. The

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Zou, Cunyu, Bo Li, Xiangfeng Wang, and Siyuan Liu. "Research on indoor dynamic temperature based on circulating water heating." Energy Reports 10 (November 2023): 1091–98. http://dx.doi.org/10.1016/j.egyr.2023.07.016.

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Pratama, Novreza, Imron Rosyadi, Hadi Wahyudi, and M. Haykal Fasya. "EXPERIMENTAL STUDY OF COOLING FLUID VARIATION ON THE THERMOELECTRIC HOT SIDE ON THERMOELECTRIC VACCINE COOLER BOX PERFORMANCE." Jurnal Rekayasa Mesin 15, no. 3 (2024): 1799–808. https://doi.org/10.21776/jrm.v15i3.1850.

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The advanced countries make health a high priority and collaborate to create a better quality of life. Vaccination is a critical component of global health. Vaccines must be stored at a constant temperature of 2-8℃, to maintain the viability of the vaccine cold chain. Thermoelectric cooling systems (TECs) are a solution that is simple, lightweight, low cost, and portable. Excessively high hot-side temperatures can be detrimental to operators and the environment during distribution processes. The application of fans and circulating fluid can reduce the TEC hot-side temperature. The lowest TEC t

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Ma, Jiaze, Chen Li, Fuyu Liu, Yufei Wang, Tiecheng Liu, and Xiao Feng. "Optimization of circulating cooling water networks considering the constraint of return water temperature." Journal of Cleaner Production 199 (October 2018): 916–22. http://dx.doi.org/10.1016/j.jclepro.2018.07.239.

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Toropov, Alexey L. "Energy efficiency of circulating pumps when using non-freezing heat transfer fluids." Vestnik MGSU, no. 5 (May 2023): 726–36. http://dx.doi.org/10.22227/1997-0935.2023.5.726-736.

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Introduction. The article considers the issues of operation of circulating pumps of autonomous heat supply systems when the heating circuit is filled with antifreezing coolants. It is possible to remotely start up a heating system cooled down to –15 °С. Ethylene glycol and propylene glycol antifreeze have been studied as antifreeze carriers. Flow-rate characteristics, power efficiency coefficients are studied for “wet rotor” circulation pumps in versions of electric motors of asynchronous type with constant rotor speed and energy-saving pumps on permanent magnets. Materials and methods.

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Li, Xiaxia, Liming Shen, and Ying Huang. "An experiment to assess the heat transfer performance of thermoelectric-driven conditioned mattress." Thermal Science, no. 00 (2021): 146. http://dx.doi.org/10.2298/tsci201111146l.

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This study sets out to describe the design, construction and testing of thermoelectric-driven conditioned mattress intended to reduce the human-mattress interface temperature, in order to satisfy the personal sleep thermal comfort requirements in hot conditions. A prototype of thermoelectric-driven conditioned mattress is constructed and tested. A series of experimental studies related to the temperature of different cushion layers and time from start-up to stable state have been carried out, specifically to analyze the difference in heat transfer performance of two types of temperature contro

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Aryani, Titin. "ANALISIS KUALITAS AIR MINUM DALAM KEMASAN (AMDK) DI YOGYAKARTA DITINJAU DARI PARAMETER FISIKA DAN KIMIA AIR." MEDIA ILMU KESEHATAN 6, no. 1 (2019): 46–56. http://dx.doi.org/10.30989/mik.v6i1.178.

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Backgroud: Nowadays, bottled water has become the most substitute water for cooking drinking water. Although bottled water seemed attractive, it is crucial to assess its quality. Objective: This quantitative study aimed to determine the quality of the 5 brands of bottled water circulating in Yogyakarta, in terms of physical parameters (temperature, smell, taste, color, turbidity, and TDS electroconductivity) and chemical parameters of water (pH, the presence of Cl-ions, and the presence of metals such as Cr, Fe, Zn, Cd). Methods: The sampling technique used was purposive sampling.

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Li, Bolun, Wei Zhang, Yucheng Li, Zhitao Zhang, Jinyang Dong, and Yunan Cui. "Study on the Temperature and Smoke Movement in the Event of a Fire in a Semiclosed Tunnel under Water Spray." Fire 6, no. 8 (2023): 324. http://dx.doi.org/10.3390/fire6080324.

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Semiclosed tunnels are very common in engineering construction. They are not connected, so they easily accumulate heat. Once a fire breaks out in a semiclosed tunnel, the route for rescue workers to enter is limited, so it is tough to get close to the fire source. In this paper, taking a mine excavation roadway with local pressure ventilation as an example, the temperature field distribution and water spray fire prevention characteristics of the excavation roadway face were studied using numerical simulation and theoretical analysis. This paper provides an explanation of a dynamics-based smoke

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Chen, Jin Mao, Xiao Ying Sun, Guan Jun Leng, Ru Juan Yi, and Bo Gao. "Improvement of Engine Coolant Ultrasonic Cavitation Apparatus." Applied Mechanics and Materials 733 (February 2015): 574–77. http://dx.doi.org/10.4028/www.scientific.net/amm.733.574.

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The structure of cast iron specimen and the temperature control unit of the engine coolant ultrasonic cavitation apparatus were improved in this paper. The broken problem of cast iron specimen was solved by split-structure design, which also solved the loose binding problem between specimen and sonotrode. The temperature control unit included a beaker with water circulating jacket, water bath, circulating pump and connection hose. The temperature control unit overcame the difficulty of the temperature control of test coolant solution. More important, the temperature control inside the soundpro

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Ivanyakov, S. V., and D. A. Kryuchkov. "OPTIMIZATION OF OPERATING PARAMETERS OF OPEN COOLING TOWERS OF THE DOUBLE-CIRCUIT COOLING SYSTEM." Petroleum Engineering 21, no. 1 (2023): 153–60. http://dx.doi.org/10.17122/ngdelo-2023-1-153-160.

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The operation of most chemical processes is accompanied by the cooling of various production streams over a wide temperature range using various refrigerants. At cooling temperatures of process streams up to 25 °C, the most common refrigerant is water prepared in circulating water supply systems of petrochemical plants equipped with fan cooling towers, the work of which is considered in the article. Operation of open cooling towers in single-circuit cooling systems is characterized by high economic efficiency with a wide range of thermal capacities. However, drip entrainment of circulating wat

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Petrushchenkov, V. A. "Operating modes of the fuel oil circulation heating system when using water vapor or hot water." E3S Web of Conferences 614 (2025): 01002. https://doi.org/10.1051/e3sconf/202561401002.

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Circulating heating of fuel oil in railway tanks is carried out, as a rule, with the help of saturated water vapor due to the preparation of a heating stream of fuel oil with a temperature of about 90°C. At the same time, a stream of hot water is also used as a heating coolant. Of interest are the operating characteristics of the fuel oil heater as part of such an installation, depending on the type of heating agent, the temperature of the heated fuel oil, and the steam pressure. The behavior of the existing system of circulating heating of fuel oil of the M100 brand while maintaining the fuel

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Alghamdi, Mohammed, Faissal Abdel-Hady, A. Mazher, and Abdulrahim Alzahrani. "Integration of Process Modeling, Design, and Optimization with an Experimental Study of a Solar-Driven Humidification and Dehumidification Desalination System." Processes 6, no. 9 (2018): 163. http://dx.doi.org/10.3390/pr6090163.

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Solar energy is becoming a promising source of heat and power for electrical generation and desalination plants. In this work, an integrated study of modeling, optimization, and experimental work is undertaken for a parabolic trough concentrator combined with a humidification and dehumidification desalination unit. The objective is to study the design performance and economic feasibility of a solar-driven desalination system. The design involves the circulation of a closed loop of synthetic blend motor oil in the concentrators and the desalination unit heat input section. The air circulation i

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Yang, Li, Yunfeng Ren, Zhihua Wang, Zhouming Hang, and Yunxia Luo. "Simulation and Economic Research of Circulating Cooling Water Waste Heat and Water Resource Recovery System." Energies 14, no. 9 (2021): 2496. http://dx.doi.org/10.3390/en14092496.

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Industrial circulating cooling water contains a large amount of low-quality energy, which is lost to the environment through cooling towers. It is of great significance and potential to recover the waste heat to improve energy-saving effects and economic efficiency. However, the effect of common water harvesting and energy saving devices is not significant. Heat pumps have been shown to be effective in improving low-quality heat energy in energy conversion systems, although there are not many applications of heat pump scenarios in engineering practice. Based on this, a recovery solution of cir

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Yang, Jinyan, Yong Xu, Jie Zhou, and Shiqiang Wu. "Reservoir water intake pump house location optimization on water age." MATEC Web of Conferences 246 (2018): 02051. http://dx.doi.org/10.1051/matecconf/201824602051.

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Reservoir circulating currents and water age is considered to optimize the intake pump house locations. Since the air temperature, water depth and nitrogen and phosphor input is hard to control, to optimize the water age and cycling currents of reservoir by water intake pump house location optimization is one of the most usefully way to control the risk of eutrophication of reservoir by growth inhibition of age.

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Lu, Yesheng, Junning Cui, Jiubin Tan, and Xingyuan Bian. "Quick Response Circulating Water Cooling of ±3 mK Using Dynamic Thermal Filtering." Applied Sciences 10, no. 16 (2020): 5483. http://dx.doi.org/10.3390/app10165483.

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An enhanced circulating cooling water (CCW) machine is developed to simultaneously achieve high temperature stability and dynamic performance of CCW temperature control. Dynamic thermal filtering based on an auto-updatable thermal capacity medium is proposed to reduce the temperature fluctuation of the CCW. Agile thermal control is presented to realize a quick response and high resolution of temperature control, through thermal inertia minimization and bidirectional regulation of heating/cooling power. Experimental results indicate that a temperature stability of ±3 mK (peak to peak value) and

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Vinceslio, Eric M., Zane Fayos, Aaron Bernadette, and Jan-Michael Van Gent. "Expeditionary Immersion Circulating Heating Device: A Promising Technique for Treating Frostbite Injuries and Warming Intravenous Fluids in a Forward Deployed Cold Weather Environment." Military Medicine 185, no. 11-12 (2020): e2039-e2043. http://dx.doi.org/10.1093/milmed/usaa213.

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Abstract Introduction Cold weather injuries require prompt warm water immersion therapy, which proves to be a difficult task in the cold austere environment. Current guidelines recommend 104 °F water immersion, but producing and maintaining large volumes of warm water is challenging in sub-freezing temperatures. We describe a novel process of utilizing a sous vide immersion circulator to maintain warm fluids for immersion therapy and efficient fluid rewarming in a cold forward-deployed setting for the treatment of cold weather injuries in an effort to bridge the gap between current medical gui

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Bosak, Mykola, Oleksandr Hvozdetskyi, Bohdan Pitsyshyn, and Serhii Vdovychuk. "THE RESEARCH OF CIRCULATION WATER SUPPLY SYSTEM OF POWER UNIT OF THERMAL POWER PLANT WITH HELLER COOLING TOWER." Theory and Building Practice 2020, no. 2 (2020): 1–9. http://dx.doi.org/10.23939/jtbp2020.02.001.

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Analytical hydraulic researches of the circulating water cooling system of the power unit of a thermal power plant with Heller cooling tower have been performed. Analytical studies were performed on the basis of experimental data obtained during the start-up tests of the circulating water cooling system of the “Hrazdan-5” power unit with a capacity of 300 MW. Studies of the circulating water cooling system were carried out at an electric power of the power unit of 200 - 299 MW, with a thermal load of 320 - 396 Gcal/hr. By circulating pumps (CP), water mixed with condensate is fed to the coolin

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Du, Zhehua. "Variable operating conditions characteristics of circulating wheel dehumidification air conditioning system." Journal of Physics: Conference Series 2520, no. 1 (2023): 012034. http://dx.doi.org/10.1088/1742-6596/2520/1/012034.

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Abstract For its efficient application of low-grade energy, the circulating wheel dehumidification air conditioning system has received a lot of attention and research in response to the shared challenges of environmental protection, energy conservation, and low carbon. Desiccant wheel dehumidification air conditioning systems can recycle waste heat as a desiccant wheel regeneration heat source and improve air quality, which is expected to achieve low energy consumption and high-efficiency dehumidification. The desiccant wheel dehumidification air conditioning system is divided into a treatmen

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Jiang, Li-li, Hai-Tao Yu, Lie-fei Pei, and Xin-gang Hou. "The Effect of Temperatures on the Synergistic Effect between a Magnetic Field and Functionalized Graphene Oxide-Carbon Nanotube Composite for Pb2+ and Phenol Adsorption." Journal of Nanomaterials 2018 (July 30, 2018): 1–13. http://dx.doi.org/10.1155/2018/9167938.

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The effect of temperature on scale inhibition and adsorption properties for Pb2+ and phenol was studied under the synergistic effect of the magnetic field and the adsorbent. The sulfhydryl and amino-modified graphene oxide/oxidized multiwalled carbon nanotubes (NH2-SH-GO/o-MWCNTs) were synthesized and applied as the adsorbent. Additionally, changes in pH, conductivity, molecular activation energy, the relative variation of intramolecular energy and the relative variation in the proportion of free water, and adsorption capacity of the adsorbent were studied under different temperatures of circu

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Li, Yang, and Xiu Juan Liang. "Research for Water Quality Problems of Power Plant Circulating Cooling Water Source Heat Pump System in the Cold and Severe Cold Regions." Applied Mechanics and Materials 535 (February 2014): 399–402. http://dx.doi.org/10.4028/www.scientific.net/amm.535.399.

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In the northern cold areas, the circulating cooling water contains a large number of low temperature waste heat.Cold and heat sources can be used as a heat pump heating to the building. The experiment shows that the system has significant economic, energy conservation and environmental value. This article describes the plant circulating cooling water source heat pump system, water quality, corrosion and fouling problems, and solve these problems need to pay attention.

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Tang, Zhen, Zhilong Zhao, Ke Zhao, et al. "Water Based Mn-Zn Magnetic Fluid Heat Dissipation Capacity Testing Platform." Journal of Physics: Conference Series 2694, no. 1 (2024): 012010. http://dx.doi.org/10.1088/1742-6596/2694/1/012010.

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Abstract Manganese zinc magnetic fluid is a temperature sensitive magnetic fluid that can regulate its flow behavior using temperature and magnetic fields. However, there is currently no testing platform for evaluating the heat dissipation ability of this magnetic fluid working fluid by coupling temperature and magnetic fields. This article establishes two experimental testing platforms for applying magnetic fields, namely a circulating pipeline and a temperature equalization plate. Compared with deionized water, evaluate the average temperature and heat dissipation ability of water-based mang

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Ahn, Chang Hyuk, Saeromi Lee, Ho Myeon Song, Jae Roh Park, and Jin Chul Joo. "Assessment of Water Quality and Thermal Stress for an Artificial Fish Shelter in an Urban Small Pond during Early Summer." Water 11, no. 1 (2019): 139. http://dx.doi.org/10.3390/w11010139.

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: This study evaluated water quality variations in an artificial deep pool (ADP), which is an underground artificial structure built in a shallow pond as a fish shelter. The water temperature, pH, dissolved oxygen (DO), and electrical conductivity (EC) were measured on an hourly basis in the open space and inside the ADP, and a phenomenological study was performed, dividing seasons into normal and rainy seasons and environments into stagnant and circulating conditions. The results showed that the water quality parameters inside the ADP exhibit lower fluctuations and diurnal variations compared

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Sailani, Sunaina. "TO STUDY AND ANALYSIS OF FLAT PLATE SOLAR WATER HEATER PV CELLS." International Journal of Engineering Technologies and Management Research 5, no. 3 (2020): 159–65. http://dx.doi.org/10.29121/ijetmr.v5.i3.2018.188.

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In this study we are obtaining the maximum temperature of solar water heater using of PV cells. The flat plate solar water heater are consisting using several parts such as collector , flat plate glass , circulating pump, PV cells , frame . The centrifugal pump is operated by PV Cells. Water temperature is measured by digital temperature meter. Hot water is storage in container. The most elements of these are a clear front cover, collector housing associated an absorbent material.

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Usmonov, N., Sh Sanayev, and Z. Yusupov. "CALCULATION OF TEMPERATURE OF ROUTINE WATER COOLED IN IRRIGATED LAYERS." Technical science and innovation 2019, no. 3 (2019): 249–55. http://dx.doi.org/10.51346/tstu-01.19.3.-77-0036.

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The article describes the developed mathematical model, algorithm and program for calculating the process of cooling the water leaving the evaporative cooler and the final temperature of humid air. The compilation of a mathematical model is based on the analysis of literature data. Practically at all industrial enterprises, technological equipment is cooled by means of circulating water supply systems equipped with evaporative coolers. The article made a choice of a cooling system for air conditioning systems of residential premises. The developed basic design scheme of the evaporative water a

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Harpen, Romario Van, Purwantono Purwantono, Budi Syahri, and Rizky Ema Wulansari. "Rancang Bangun Circulating System Water Heater dengan Sumber Panas Solar Cell." ARZUSIN 3, no. 5 (2023): 646–56. http://dx.doi.org/10.58578/arzusin.v3i5.1774.

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The use of solar energy is very important to increase today because solar energy is renewable energy and also does not cause pollution, but solar collector equipment is still needed to convert solar energy into heat energy. This study aims to analyze the heat transfer in the flat plate solar collector which is used as a source of thermal energy in the water heating process for bathing. A solar collector is used to absorb solar thermal energy and then transfer it to a water pipe. The pipe material uses copper which has a very high conductivity value with an outer diameter of 5/8 '' (15.7 mm). T

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Zhu, Dong, Hongwen Jing, Qian Yin, and Guansheng Han. "Experimental Study on the Damage of Granite by Acoustic Emission after Cyclic Heating and Cooling with Circulating Water." Processes 6, no. 8 (2018): 101. http://dx.doi.org/10.3390/pr6080101.

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Hot dry rock is developed by injecting cold water into high-temperature rock mass. At the same time, cold water is heated in contact with the rock mass. With the continuous influx of cold water, the surrounding rock will undergo a rapid cooling process, which results in several cycles of heating and cooling. However, there is little research on the influence of cycles of heating and cooling with circulating water on the mechanical properties of rock, which is of great importance to the stability of rock mass engineering in the process of energy development. In this paper, the effects of cyclic

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Qin, Pan Pan, Hui Chen, Li Li Chen, Zhen Qu, Lu Ning Yu, and Shi Kui Liu. "Utilization of Waste Heat of Circulating Cooling Water in Hot-Stamping Power System." Advanced Materials Research 588-589 (November 2012): 1829–32. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.1829.

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This paper studies the possibility of using heat pump instead of cooling tower to decrease temperature and recover waste heat of circulating cooling water of power system. Making use of heat transfer theory the paper carried on analysis and calculation about recoverable waste heat of circulating cooling water in hot-stamping power system which includes hot-stamping, closing in and extrusion intermediate frequency induction furnace. The results show that the whole process can recover calories which is 2.642×106kJ per hour.Using the recycled calories can make 15.82 tons hot water per hour which

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