Results 11 to 20 of about 320,111 (208)

Porous Coordination Polymers as Novel Sorption Materials for Heat Transformation Processes

open access: yesCHIMIA, 2013
Porous coordination polymers (PCPs)/metal-organic frameworks (MOFs) are inorganic–organic hybrid materials with a permanent three-dimensional porous metal–ligand network.
Christoph Janiak, Stefan K. Henninger
doaj   +1 more source

Energy and performance analysis of solar solid desiccant cooling systems for energy efficient buildings in tropical regions

open access: yesEnergy Conversion and Management: X, 2022
Due to Malaysia's high ambient humidity, the majority of buildings suffer from over-cooling and high-energy consumption of conventional cooling systems.
M.M.S. Dezfouli   +2 more
doaj   +1 more source

Formation and Disruption of Cosmological Low Mass Objects [PDF]

open access: yes, 1999
We investigate the evolution of cosmological low mass (low virial temperature) objects and the formation of the first luminous objects. First, the `cooling diagram' for low mass objects is shown.
Carlberg R. G.   +4 more
core   +2 more sources

Cooling characteristics of solar photovoltaic panels based on phase change materials

open access: yesCase Studies in Thermal Engineering, 2023
The efficiency of photovoltaic(PV) panels decreases as their temperature increases, so effective cooling of them is necessary. The cooling of PV panels based on phase change materials(PCMs) is an emerging cooling method that has recently received the ...
Zhiming Xu   +3 more
doaj   +1 more source

A-Review for the Cooling Techniques of PV/T Solar Air Collectors [PDF]

open access: yesEngineering and Technology Journal, 2022
A solar thermal collector is one of the most popular applications of solar energy. It is a photovoltaic (PV) cell system with a thermal collector system, this system is utilized in the production of electrical energy and many applications.
Wisam Saleh   +2 more
doaj   +1 more source

A Cascade Proportional Integral Derivative Control for a Plate-Heat-Exchanger-Based Solar Absorption Cooling System

open access: yesEnergies, 2021
Automatic proportional integral derivative control techniques are applied in a single-stage solar absorption cooling system, showing 3.8 kW (~1 ton) cooling capacity, with a coefficient of performance of 0.6 and −4.1 °C evaporator cooling temperature. It
Yeudiel Garcíadealva   +5 more
doaj   +1 more source

Enhancement of Condenser Performance in Vapor Absorption Refrigeration Systems Operating in Arid Climatic Zones—Selection of Best Option

open access: yesEnergies, 2023
Generators and condensers are the two vital equipment items that determine the output of vapor absorption refrigeration systems. Arid weather conditions produce a significant reduction in the performance of the vapor absorption refrigeration cycle due to
Zakariya Kaneesamkandi   +4 more
doaj   +1 more source

Integration and simulation of solar energy with hot flue gas system for the district cooling application

open access: yesCase Studies in Thermal Engineering, 2020
The worldwide cooling demands are rising drastically. Several causes lead to this scenario such as industrialization, global warming and tropical climate region.
Abrar Inayat   +6 more
doaj   +1 more source

Thermal solar sorption cooling systems, a review of principle, technology, and applications

open access: yesAlexandria Engineering Journal, 2022
Conventional energy consumption in refrigeration is one of the important reasons in global warming. Solar cooling systems are becoming more compact, having lower costs, and are potential alternative technologies, especially in hot and sunny climates. The
Radwan A. Almasri   +3 more
doaj   +1 more source

Design of Augmented Cooling System for Urban Solar PV System [PDF]

open access: yesMATEC Web of Conferences, 2021
Solar photovoltaic (PV) panels have been widely used to convert the renewable energy from the sun to electrical energy to power electrical loads but suffers from relatively low efficiency between 15% to 22%. Typically, the panels have an average lifespan
Jia Joon Chong, Chew Wai Jin Kelvin
doaj   +1 more source

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