Results 11 to 20 of about 2,968 (214)

Optimal Ratio of Methyldiethanolamine and Monoethanolamine Based on Regenerative Energy and Absorption Capacity Analysis

open access: yesChemical Engineering Transactions, 2021
Chemical absorption using alkanolamine is the most used technique for carbon dioxide capture and storage (CCS). The energy required for regenerating the alkanolamine aqueous solution accounts for 70 - 80 % of the whole process. In this work, a new method
Lianghui Guo   +6 more
doaj   +1 more source

Development of Inorganic Impregnated Phase Change Material(PCM) in the Pores of Activated Carbon

open access: yes대한환경공학회지, 2021
Objectives Recently, energy-related research has shifted from developing alternative energy to the efficient management technology of the produced energy.
Soyoung Baek   +3 more
doaj   +1 more source

Characteristics Analysis of the Heat-to-Power Ratio from the Supply and Demand Sides of Cities in Northern China

open access: yesEnergies, 2020
Combined heat and power (CHP), an efficient heating method with cascades use of energy, accounts for approximately 50% of the heat sources in northern China.
Shunyong Yin, Jianjun Xia, Yi Jiang
doaj   +1 more source

Numerical Study on the Fluid Flow and Heat Transfer Characteristics of Al2O3-Water Nanofluids in Microchannels of Different Aspect Ratio

open access: yesMicromachines, 2021
The study of the influence of the nanoparticle volume fraction and aspect ratio of microchannels on the fluid flow and heat transfer characteristics of nanofluids in microchannels is important in the optimal design of heat dissipation systems with high ...
Huajie Wu, Shanwen Zhang
doaj   +1 more source

A numerical investigation of heat transfer and pressure drop in a novel cylindrical heat sink with helical minichannels [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2018
This study numerically investigated heat transfer and fluid flow characteristics in a novel cylindrical heat sink with helical minichannels for the laminar flow of fluid with temperature-dependent properties. A finite volume method was employed to obtain
Alireza Falahat   +2 more
doaj   +1 more source

A Calibration of the Solar Load Ratio Method to Determine the Heat Gain in PV-Trombe Walls [PDF]

open access: yesEnergies, 2022
The Trombe wall is a passive system used in buildings that indirectly transfers thermal energy to the adjacent environment by radiation and convection, and directly by the thermo-circulation that arises in the air cavity delimited between a transparent and an absorbing surface. Nevertheless, the latter is painted black to increase the energy gains, but
Bruno R.   +4 more
openaire   +2 more sources

Effect of asymmetrical wall heat flux and wall temperature ratio on mixed convection in a vertical micro-porous-channel with internal heat generation

open access: yesPropulsion and Power Research, 2020
Mixed convective heat transfer in a vertical parallel plate micro-porous channel with internal heat generation and viscous dissipation, varying wall heat flux ratio and wall temperature ratio at the boundaries is investigated using the Darcy-Brinkman ...
V. Leela   +3 more
doaj   +1 more source

Sap Flow Sensors: Construction, Quality Control and Comparison

open access: yesSensors, 2012
This work provides a design for two types of sensors, based on the thermal dissipation and heat ratio methods of sap flow calculation, for moderate to large scale deployments for the purpose of monitoring tree transpiration.
Pao-Shan Yu   +3 more
doaj   +1 more source

Optimization of heat extraction performance of gravity heat pipe under multiple working conditions

open access: yesMeikuang Anquan, 2022
The orthogonal experiment method was used to investigate the heat transfer performance of the gravity heat pipe under the influence of multiple factors such as types of working fluid, filling rate, and the aspect ratio.
MA Xin   +5 more
doaj   +1 more source

Construction and Performance Evaluation of a Flow Meter Based on Thermal Pulse to Measure Plant Sap Flow in Vascular Tissues [PDF]

open access: yesJournal of Agricultural Machinery
IntroductionNeglecting the water requirements of trees can result in inefficient irrigation practices, leading to either water wastage or drought stress.
M. Teimorzadeh   +3 more
doaj   +1 more source

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