Results 1 to 10 of about 1,337,881 (210)

Quantitative analysis of heat release during coal oxygen-lean combustion in a O2/CO2/N2 atmosphere by TG-DTG-DSC [PDF]

open access: yesScientific Reports, 2022
Heat release of coal combustion in an oxygen-lean and multi-gas environment is a common phenomenon, coalfield fires caused by it can lead to serious environmental destruction and loss of coal resources.
Jingdong Shi   +5 more
doaj   +2 more sources

Integration of Active Solar Thermal Technologies in Greenhouses: A Mini Review

open access: yesFrontiers in Energy Research, 2021
Traditional agricultural greenhouses have been used to grow vegetables in the winter without any auxiliary heating. However, crop production is highly influenced by soil and air temperatures, humidity, and solar radiation.
Ding Ding
doaj   +1 more source

Analysis of Durability and Hydration Characteristics of Metakaolin Concrete

open access: yesKuangchan zonghe liyong, 2022
In order to obtain the effects of different amounts of metakaolin on the physical, mechanical properties and hydration characteristics of concrete, basic physical and mechanical tests of metakaolin concrete and concrete hydration performance tests were ...
Bo Ning, Miaomiao Liu, Wenfei Wang
doaj   +1 more source

ANALYSIS OF THE SHARE OF NATURAL GAS IN THE TOTAL FUEL SUPPLY DOSE ON THE COMBUSTION PROCESS IN A CRDI ENGINE [PDF]

open access: yesTransport Problems, 2022
Natural gas is one of the potential combustion engine fuels whose proportion in the overall energy balance is expected to increase. Owing to some of its properties, its use requires a dual-fuel supply system; thus, the use of natural gas as a fuel for
Sławomir WIERZBICKI   +3 more
doaj   +1 more source

Infrared Thermography Investigation of Crystallization in Acoustically Levitated Supersaturated Aqueous Solution

open access: yesApplied Sciences, 2023
In this study, crystallization in highly supersaturated aqueous urea solutions was investigated using in situ infrared thermography facilitated by an acoustic levitation apparatus.
Joohyun Lee, Ji-Hwan Kwon, Sooheyong Lee
doaj   +1 more source

Development of early age autogenous and thermal strains of alkali-activated slag-fly ash pastes

open access: yesFrontiers in Built Environment, 2022
Replacing ordinary Portland cement-based materials with alkali-activated industrial wastes is often limited because of significant volume changes occurring in these materials at early age. This experimental study aims to quantify the extent of the volume
Maïté Lacante   +5 more
doaj   +1 more source

Method of adjusting fuel equipment of a diesel locomotive by heat release feature under operating conditions

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
Diesel engines supply mechanical power to almost half of the locomotives of the Russian railways. To ensure the passport characteristics of a diesel locomotive during the entire period of operation, periodic adjustment of the fuel supply equipment is ...
A. Yu. Kon’kov   +2 more
doaj   +1 more source

Development of Predictive Model for Hydrogen-Natural Gas/Diesel Dual Fuel Engine

open access: yesEnergies, 2023
Faced with environmental issues and depleting oil reserves, engine research is venturing into novel paths, such as the dual-fuel engine. This has motivated the development of numerical models that provide highly accurate predictive tools. In this context,
Youcef Sehili   +4 more
doaj   +1 more source

Heat Release Simulation Research Based on Solid Heat Storage and Release Materials

open access: yesJournal of Physics: Conference Series, 2023
Abstract To promote the actual investment of solid electric heat storage heating devices, three different heat storage and heat release materials are used to simulate and analyze the heat release. The results show that “magnesia brick has the best heat storage and release capacity in 10 hours”. In terms of average temperature performance,
Wentao Li   +4 more
openaire   +1 more source

Enhanced Fire Safety of Rigid Polyurethane Foam via Synergistic Effect of Phosphorus/Nitrogen Compounds and Expandable Graphite

open access: yesMolecules, 2020
In order to explore highly efficient flame-retardant rigid polyurethane foam (RPUF), phosphorus/nitrogen compounds and expandable graphite (EG) were successfully incorporated into RPUF by a free one-spot method.
Chuan Liu   +9 more
doaj   +1 more source

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