Results 21 to 30 of about 895,159 (303)

Coronal heating by magnetohydrodynamic turbulence driven by reflected low-frequency waves [PDF]

open access: yes, 1999
A candidate mechanism for the heating of the solar corona in open field line regions is described. The interaction of Alfvén waves, generated in the photosphere or chromosphere, with their reflections and the subsequent driving of quasi-two-dimensional ...
Dmitruk, Pablo   +4 more
core   +2 more sources

Avaliação do desempenho de um aquecedor para aves adaptado para utilizar biogás como combustível Birds heater adaptation and performance using biogas as fuel

open access: yesEngenharia Agrícola, 2007
Desenvolveu-se ensaio para avaliar a adaptação (diâmetro do injetor) e o desempenho (consumo e eficiência de aquecimento) de um aquecedor tipo campânula, adaptado para queimar biogás.
Tânia M. B. Santos   +2 more
doaj   +1 more source

An efficient heat problem

open access: yesDifferential Equations & Applications, 2022
Summary: By means of fixed point theory we study properties of solutions of a Volterra integral heat equation \[ x(t) = a(t) -\int^t_0 A(t-s) f (s,x(s))ds \] by first mapping it into \[ x(t) = z(t) +\int^t_0R(t-s)\left[x(s)-\frac{f (s,x(s))}{J}\right]ds \] where \[ z(t) = a(t)-\int^t_0 R(t-s)a(s)ds, \] \(R\) is the resolvent of \(JA\), \(J\) is a large
openaire   +2 more sources

District heating versus self-heating: Estimation of energy efficiency gap using regression discontinuity design

open access: yesChina Economic Quarterly International, 2021
This paper employs regression discontinuity design to estimate the impact of heating modes on residents’ energy consumption, energy efficiency gap, and energy usage behavior, using the Chinese Residential Energy Consumption Survey (CRECS).
Jing Jin, Yucheng Wang, Xinye Zheng
doaj   +1 more source

Evolution of the ISM of Starburst galaxies: the SN heating efficiency [PDF]

open access: yes, 2003
The interstellar medium heated by SN explosions may acquire an expansion velocity larger than the escape velocity and leave the galaxy through a supersonic wind.
Melioli, C., Pino, E. M. de Gouveia Dal
core   +1 more source

Determination of the energy efficiency of a flat reflector solar air heating collector with a heat accumulator [PDF]

open access: yesE3S Web of Conferences, 2023
The article presents an improved scheme and pilot-industrial copy of a flat reflector solar air heating collector with a heat accumulator. The heat balance equation of the flat reflector solar air heating collector with heat accumulator is constructed ...
Toshmamatov Bobir   +2 more
doaj   +1 more source

Thermostat settings in English houses No evidence of change between 1984 and 2007 [PDF]

open access: yes, 2010
Rising demand temperatures are widely blamed for UK home energy use not declining over time despite the increased efficiency of dwelling envelopes and heating technologies The hypothesis that thermostat settings have risen over time is tested using a ...
Shipworth, M
core   +1 more source

Construction of energy efficiency benchmarking system for oil field heating furnace

open access: yesYou-qi chuyun, 2020
Heating furnace is an essential thermal device in the process of surface gathering and transportation of an oil field, with energy consumption accounting for 80% of the total in the gathering and transportation system.
Wei ZANG, Zhi YANG, Xiong DENG, Lu KANG
doaj   +1 more source

Experimental investigation of open-ended microwave oven assisted encapsulation process [PDF]

open access: yes, 2010
An open ended microwave oven is presented with improved uniform heating, heating rates and power conversion efficiency. This next generation oven produces more uniform EM fields in the evanescent region forming part of the heating area of the oven. These
Adamietz, R.   +8 more
core   +1 more source

Investigations on a controlled microwave heating technique for efficient depressurization in methane hydrate reservoirs

open access: yesEnergy Reports, 2022
Numerical investigations on a novel technique of controlled microwave heating with depressurization, applied to gas recovery from methane hydrate reservoirs are performed.
Rahul Yadav   +3 more
doaj   +1 more source

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