Results 1 to 10 of about 1,281 (219)

The effect of diurnal light cycles on biohydrogen production in a thermosiphon photobioreactor [PDF]

AMB Express, 2023
Key points The thermosiphon photobioreactor can operate under diurnal light cycles. Diurnal light cycles reduce hydrogen productivity of R. palustris. Diurnal light cycles have little to no effect on the growth of R palustris.
Catharine Elizabeth Bosman, Petrie van Wyk, Robert William McClelland Pott, Steven Martin Bradshaw   +3 more
doaj   +2 more sources

Experimental Performance Comparison of a Modular Water-Based Photovoltaic–Thermal System Under Multiple Hydraulic Operating Modes in a Tropical Climate [PDF]

Sensors
In Brazil, more than 80% of households rely on electricity for water heating, representing approximately 13% of residential electricity consumption and significantly contributing to peak grid demand.
Carlos Roberto Coutinho, Rodrigo Fiorotti, Marcelo Eduardo Vieira Segatto, Jussara Farias Fardin, Helder Roberto de Oliveira Rocha   +4 more
doaj   +2 more sources

Simulation of a pillow plate thermosiphon reboiler using an equivalent tube bundle geometry [PDF]

Case Studies in Thermal Engineering, 2023
Pillow plate thermosiphon reboilers are innovative heat exchangers due to their compactness, flexible design options as well as high temperature and pressure resistance.
Yan Lu, Jochen Hammerschmidt, Herbert Falk, Stephan Scholl, Katharina Jasch   +4 more
doaj   +2 more sources

Passive Cooling of PV Modules Using Heat Pipe Thermosiphon with Acetone: Experimental and Theoretical Study

Applied Sciences, 2023
The effect of heat pipe thermosiphon in reducing the operating temperature of a photovoltaic panel has been analyzed theoretically and experimentally in this paper. Copper heat pipe thermosiphon with acetone as a working fluid was used.
Zakariya Kaneesamkandi, Mohammed Jarallah Almalki, Abdul Sayeed, Zeyad A. Haidar   +3 more
doaj   +2 more sources

Enhancing heat transfer at low temperatures by laser functionalization of the inner surface of metal pipes [PDF]

Scientific Reports
The latent heat transfer during vapour condensation in the condenser section of passive heat transport devices such as the two-phase closed thermosiphon is limited by film condensation.
Daniel Holder, Alexander Peter, Marc Kirsch, Sergio Cáceres, Rudolf Weber, Volkher Onuseit, Rudi Kulenovic, Jörg Starflinger, Thomas Graf   +8 more
doaj   +2 more sources

The effect of different variables and using of the internal adiabatic wall in the construction and performance of thermosiphon heat pipes: Experimental investigation

Case Studies in Thermal Engineering, 2023
Heat pipes are a practical and powerful tool for recovering thermal energy and conserving energy sources. Thermosiphon is one of the most widely used devices that can transfer large amounts of heat at high rates between hot and cold sources without the ...
Gongxing Yan, Mohammad Javad Kholoud, As'ad Alizadeh, Dheyaa J. Jasim, Navid Nasajpour-Esfahani, Ahmed Salah Al-Shati, Mahmoud Shamsborhan   +6 more
doaj   +1 more source

Model of an electronic equipment cooling system based on the joint use of high-current thermoelectric semiconductor batteries and a thermal thermosipho

Вестник Дагестанского государственного технического университета: Технические науки, 2021
Objective. The objective of the study is to develop a design model of the electronic equipment cooling system based on the combined use of high-current thermoelectric semiconductor batteries of layered design and an evaporative-condensing thermal ...
A. B. Sulin, D. V. Evdulov, A. M. Ibragimova, A. I. Semilyak   +3 more
doaj   +1 more source

Numerical Analysis of Frost Heave and Thaw Settlement for Pipeline Buried in Frost-Susceptible Soil via Thermosiphons

Applied Sciences, 2023
Seasonal frost or permafrost soils may encounter frost heave or thaw settlement resulting from atmospheric temperature changes and/or heat emanating from the resource-carrying pipeline. Notably, these soil movements can damage the pipeline. Thus, various
Dong-Su Park, Mun-Beom Shin, Woo-Jin Park, Young-Kyo Seo   +3 more
doaj   +1 more source

A New Concept and a Test of a Bubble Pump System for Passive Heat Transport from Solar Collectors

Energies, 2020
Heat is usually transported by hydraulic circuits where the working medium is circulated by an electric pump. Heat can also be transferred by natural convection in passive systems.
Daniel Chludziński, Michał Duda
doaj   +1 more source

Heat Pipe Solar Water Heater System Based on Heat Pipe Technology

Chemical Engineering Transactions, 2018
Although traditional solar water heaters bring great convenience to people’s life, there are still shortcomings such as slow start-up speed and poor thermal conductivity.
Jingang Yang
doaj   +1 more source