Results 31 to 40 of about 3,913,752 (290)

Overview of Recent Solar Photovoltaic Cooling System Approach

Technologies
In recent years, research communities have shown significant interest in solar energy systems and their cooling. While using cells to generate power, cooling systems are often used for solar cells (SCs) to enhance their efficiency and lifespan.
Yaareb Elias Ahmed, Mohammad Reza Maghami, Jagadeesh Pasupuleti, Suad Hassan Danook, Firas Basim Ismail   +4 more
doaj   +1 more source

Thermal Analysis in Electromagnetic Rail Launcher Taking Friction Heat into Account Under Active Cooling Condition

IEEE Access, 2020
A high-efficiency thermal management system is one of the key points in the practical application of electromagnetic rail launcher (ERL). In this paper, the thermal characteristics in ERL with the section of rectangle, convex, and concave rails by active
Xiaobo Wan, Junyong Lu, Deliang Liang, Jianyong Lou   +3 more
doaj   +1 more source

Optimisation of Continuous and Pulsed Cooling in Injection Moulding Processes [PDF]

, 2007
The concept of pulsed cooling in injection moulding involves cycling the flow of coolant in order that cooling only takes place as and when it is required, as opposed to continuous cooling, where the coolant in run through the channels throughout the ...
B. A. McCalla, McCalla, B.A., Hornsby, Peter, Wrobel, L.C., Smith, AG, McCalla, BA, Smith, A.G., Allan, PS, P. S. Allan, Wrobel, LC, Allan, P.S., L. C. Wrobel, P. R. Hornsby, Hornsby, PR, A. G. Smith   +14 more
core   +1 more source

Experimental Investigation of a Novel Absorptive/Reflective Solar Concentrator: A Thermal Analysis

Energies, 2020
This paper presents the experimental investigation of a novel cross-compound parabolic concentrator (CCPC). For the first time, a CCPC module was designed to simultaneously work as an electricity generator and collect the thermal energy present in the ...
Alok Dayanand, Muhsin Aykapadathu, Nazmi Sellami, Mehdi Nazarinia   +3 more
doaj   +1 more source

Comparative Study of Cooling Techniques for Photovoltaic Panels: Active Cooling Techniques, A Review [PDF]

The primary goal of photovoltaic panels is to generate electricity. The efficiency of solar systems, in particular photovoltaic panels, is generally low. The performance of PV panels depends on many parameters, such as temperature.
Al Sadoon, Abdullah M., Kassim, Muna S., Mohmood, Raid A.   +2 more
core   +1 more source

Application of cooling concepts to European office buildings

, 2022
S.109-117A simulation study investigates the potential of different ventilation and cooling strategies with regard to energy efficiency and thermal comfort in different European climates.
Pfafferott, Jens, Kalz, Doreen E.
core   +1 more source

Preweaning heat stress alters liver transcriptome and DNA methylation in dairy calves

Journal of Dairy Science
: Prenatal hyperthermia has long-lasting effects on dairy calf metabolism, immunity, and productivity. Yet, the effects of postnatal heat stress on neonatal calves remain unclear.
Jimena Laporta, Bethany Dado-Senn, Anne R. Guadagnin, Lihe Liu, Francisco Peñagaricano   +4 more
doaj   +1 more source

Active electron cooling of graphene

Advanced Functional Materials
Abstract In the emergent field of quantum technology, the ability to manage heat at the nanoscale and in cryogenic conditions is crucial for enhancing device performance in terms of noise, coherence, and sensitivity. Here, we demonstrate the active cooling and refrigeration of the electron gas in graphene, by taking advantage of nanoscale ...
Federico Paolucci, Federica Bianco, Francesco Giazotto, Stefano Roddaro   +3 more
openaire   +3 more sources

Active cool roof effect: impact of cool roofs on cooling system efficiency

Advances in Building Energy Research, 2013
Cool roofs represent an acknowledged, relatively simple, and low-cost strategy to reduce cooling energy demand of buildings and mitigate urban heat island phenomena. The purpose of this paper is to study the coupled passive–active effect produced by such a technology, where the active effect consists of the cool roof capability to decrease the suction ...
PISELLO, ANNA LAURA, Santamouris, Mattheos, COTANA, Franco   +2 more
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source