... led the circulating water temperature difference decreases the most, which was 7.63 °C (74.15%). The increase of relative humidity and atmospheric pressure led to an increase in convective heat transfer and the decrease in evaporative mass transfer, while both the convective heat transfer...

...Yang Liu; Zhe Yan; Zhenhua Jiang; Nanxi Li; Baoyu Yang; Yinong Wu This study experimentally investigates the small two-phase thermosyphon loop with a minichannel evaporator. The influences of heating power, fan power, and inclination angle on the heat transfer performance are presented...

... enthalpy of evaporation of water at triple point (0.01 °C) (kJ kg −1 ) t δ = tube thickness (m) t p = tube pitch (m) y w = water film thickness (m) A h = air-side total heat transfer surface area corresponding to a unit cell (m 2 ) A min = minimum...

...Atalay Yildirim; Özden Ağra; Mustafa Kemal Sevindir We experimentally investigated the evaporation characteristics of a sessile water droplet on a glass substrate with different surface roughness levels. The influence of five parameters is evaluated for the evaporation process: substrate...

..., with the length of 500 mm and Φ22 × 1.5 mm. The results indicate that in the process of phase change, the typical flow regimes of bubble flow, slug flow, and churn flow can be observed in the evaporator, and the presence of bubbles has an obvious disturbance on the flow field. In addition, the discontinuous...

...T. Usharani; M. Suresh This research study aims to work out the best possible performance parameters for a two-stage direct–indirect evaporative cooler (IDEC) when it is operated in Indian climatic conditions. A numerical simulation model has been developed to estimate temperature, relative...

... emission, which puts tremendous pressure on the environment. Direct evaporative cooling technology is a good choice for reducing energy consumption and carbon emissions. However, most of the current direct evaporative coolers offer excellent cooling performance at any temperature, whether the space needs...

...Md Naim Hossain; Koushik Ghosh The objective of the present work is to find out the optimal mass flux of two common refrigerants, R32 and R410A, undergoing boiling in an evaporator tube based on the entropy generation minimization approach. An entropy generation model is developed for two-phase...

... 06 12 2022 offshore energy storage accumulator phase change condensation evaporation two-phase flow and heat transfer Malta Council for Science and Technology 10.13039/501100001867 REP-2021-008 Over the past decade, the wind and solar energy sectors received...

...Zhongyan Liu; Hao Zhang; Dahan Sun; Xu Jin; Shuang Zheng; Xin Zhang CO 2 is a promising refrigerant substitute, and falling film evaporator is widely used in high-capacity heat pump systems. In this article, a CO 2 heat pump experimental device is built. According to experimental parameters, a CO 2...

... uniformity principle of TDF volumetric heat-transfer coefficient multi-objective optimization boiling bubbles particles and droplets energy efficiency evaporation heat exchangers National Natural Science Foundation of China 10.13039/501100001809 51666006 U1602272 Organic...

...@sandia.gov Email: tareich@sandia.gov Email: brian.dentremont@srnl.doe.gov Email: raywr@ornl.gov Email: willismj@ornl.gov Email: tjkulp@sandia.gov 08 07 2022 09 09 2022 15 09 2022 14 10 2022 evaporation extended surfaces/fins low temperature heat transfer...

...Shun Meng; Shu Wang; Yejian Qian; Changfa Tao; Zhaoyuan Li; Yang Hua The evaporation and pro-ignition characteristics of the lubricating oil blending in the cylinder can bring a super knock for the high-efficiency gasoline engine. The evaporation characteristics of the lubricant/gasoline blending...

.... This experiment was done to predict the evaporation rate from the wavy water surface under the different convection regimes (free, forced, and mixed) at turbulent airflow conditions over a wide range of the ratio ( G r / R e 2 ) . The evaporation rate from the wavy water surface is strongly affected...

...@iitp.ac.in 22 12 2020 12 10 2021 13 10 2021 18 11 2021 two-phase thermosyphon structured heating surface heat transfer enhancement thermal resistance bubble dynamics electronic cooling evaporation experimental techniques extended surfaces/fins two-phase flow and heat...

... further study. In this paper, a thermodynamic calculation model of a composite insulation system including hollow glass microspheres (HGMs), multilayer insulation (MLI), and self-evaporating vapor cold shield (VCS) has been established. The accuracy of the calculation model was verified...

...Ramin E. Yazdi; Temesgen Garoma This study investigated the feasibility of harvesting algae biomass using an original and novel method that uses low-grade waste heat with an integrated heat exchanger, evaporation tank, and reservoir system. Several experiments were conducted. The experimental...

...Bingyao Lin; Nanxi Li; Shiyue Wang; Leren Tao; Guangming Xu; Yinong Wu In this paper, a thin film evaporation model that includes expressions for energy, mass, and momentum conservation was established through the augmented Young–Laplace model. Based on this model, the effects of pore size...

...V. Venkateswara Rao; Santanu Prasad Datta A comprehensive exergy, exergo-economic, and sustainability assessment of seven conventional to hybrid air-conditioning systems comprising direct and indirect evaporative coolers with direct expansion system and their several combinations integrated...

... desalination multi-effect mathematical modeling GOR condensation energy systems evaporation heat and mass transfer low-temperature heat transfer thermal systems Water is the main requisite for any prosperous life and development [ 1 ]. The main part of freshwater is stored in the Arctic...