Results 31 to 40 of about 404,649 (304)

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Effects of exogenous copper on microbial metabolic function and carbon use efficiency of Panax notoginseng planting soil

open access: yesFrontiers in Microbiology
Soil copper (Cu) pollution is a serious environmental risk in the Panax notoginseng planting area. However, the effect of Cu on soil microbial metabolism and nutrient cycling in this area remains unknown.
Tong Wang   +11 more
doaj   +1 more source

Numerical and Experimental Study on a Solar Water Heating System in Lhasa

open access: yesEnergies, 2017
Lhasa is a “solar city” with high altitude, located in a cold zone in China. Due to the lack of mineral energy sources and the fragility of its ecological environment, solar heating technology is the first choice to satisfy the demand of indoor thermal ...
Xun Yang, Yong Wang, Teng Xiong
doaj   +1 more source

Research on multi-objective optimization of control strategies and equipment parameters for a combined heating system of geothermal and solar energy in cold and arid regions based on TRNSYS

open access: yesCase Studies in Thermal Engineering, 2023
Focusing on the multiple objectives of maximum solar heating capacity, maximum COP of heat pump and minimum soil heating capacity, a model of one typical building and two heating strategies was established in the TRNSYS.
Chang Sun   +3 more
doaj   +1 more source

Concentrated heat storage for solar heating

open access: yesEnergy Procedia, 2010
AbstractThe Independent Solar System (ISS) project was initiated in 2008 in order to develop a solar thermal heating system capable of covering the full-year heat and hot water load of a single family house using high temperature thermal storage. A team of European solar thermal experts, research institutions and industrial partners developed the ...
openaire   +1 more source

Solar Energy Resource Potential in Alaska [PDF]

open access: yes, 1978
Solar energy applications are receiving attention in Alaska as in much of the rest of the country. Solar energy possibilities for Alaska include domestic water heating, hot-water or hot-air collection for space heating, and the use of passive solar ...
Seifert, Richard D., Zarling, John P.
core  

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Study on synthesis and hygrothermal performance of calcium alginate-based moisture-adsorbing phase change composite

open access: yesNext Materials
Building materials with capabilities of thermal and moisture regulations can effectively mitigate the fluctuations of indoor temperature and humidity, improve the living comfort, and reduce the energy consumption of buildings.
Peng Zhang, Xin Xiao, Yunfeng Wang
doaj   +1 more source

Solar heating system [PDF]

open access: yes, 1977
A system is disclosed for using solar energy to heat the interior of a structure. The system utilizes a low cost solar collector to heat a recirculating air mass which then flows through a series of interconnected ducts and passageways without the use of
Jensen, R. N.
core   +1 more source

Connecting the Sun and the Solar Wind: The First 2.5 Dimensional Self-consistent MHD Simulation under the Alfv\'en Wave Scenario

open access: yes, 2012
The solar wind emanates from the hot and tenuous solar corona. Earlier studies using 1.5 dimensional simulations show that Alfv\'{e}n waves generated in the photosphere play an important role in coronal heating through the process of non-linear mode ...
Antolin   +28 more
core   +1 more source

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