Results 21 to 30 of about 30,463 (266)

Study on the Applicable Room Size Dimension of Stratum Ventilation for Heating Based on Multi-Criteria Analytic Hierarchy Process-Entropy Weight Model

Buildings, 2023
With the implementation of clean heating and the outbreak of COVID-19, stratum ventilation with both energy-saving and healthy indoor environments has become a research hotspot.
Yanhui Mao, Honglei Xie, Xinlu Zhang, Fumin Hou, Miantong Wang   +4 more
doaj   +1 more source

Solar Air Collectors for Space Heating and Ventilation Applications—Performance and Case Studies under Romanian Climatic Conditions

Energies, 2014
Solar air collectors have various applications: on the one hand, they can be used for air heating in cold seasons; on the other hand they can be used in summer to evacuate the warm and polluted air from residential, offices, industrial, and commercial ...
Sanda Budea
doaj   +1 more source

Turbulent heating in space plasmas: theory and observations

, 2021
Matthaeus, William H.A turbulent system transfers energy from large scales to progressively smaller scales until it is ultimately dissipated as heat. At intermediate lengthscales, this energy transfer mostly occurs from larger scales to smaller scales ...
Bandyopadhyay, Riddhi
core   +1 more source

Modeling an Alternate Operational Ground Source Heat Pump for Combined Space Heating and Domestic Hot Water Power Sizing

Energies, 2019
This study developed an alternate operational control system for ground source heat pumps (GSHP), which was applied to determine combined space heating and domestic hot water (DHW) power equations at design temperature.
Kaiser Ahmed, Jevgeni Fadejev, Jarek Kurnitski   +2 more
doaj   +1 more source

District heating in the UK:A Technological Innovation Systems analysis [PDF]

, 2012
District heating infrastructure could contribute to the UK's energy policy goals of decarbonisation, renewable energy deployment, tackling fuel poverty and ensuring energy security.
Hawkey, David
core   +1 more source

Acceptability of sufficiency consumption policies by Finnish households

Buildings & Cities
Sufficiency policies aim to decrease and avoid the demand for energy, materials, land and water. This research examines the acceptability of sufficiency consumption policies among Finnish households and how Finnish households experience sufficiency as a ...
Essi Nuorivaara, Sanna Ahvenharju
doaj   +1 more source

Incorporating the Variability of Wind Power with Electric Heat Pumps

Energies, 2011
With the mass introduction of wind power in Northern China, wind power variability has appeared. In this article, both existing electric heat pumps (EHPs) and coal-fired combined heat and power (CHP) facilities, which are generally equipped with ...
Hongyu Long, Ruilin Xu, Jianjun He
doaj   +1 more source

Long-Term Performance Measurement and Analysis of a Small-Scale Ground Source Heat Pump System

Energies, 2020
Recent data suggest that heat pumps, despite having the potential to cover over 90% of the global space and water heating demands, only provide less than 5% of global heating.
Hao Liu, Hongyi Zhang, Saqib Javed
doaj   +1 more source

Heat Kernel and Moduli Space [PDF]

Mathematical Research Letters, 1996
The author describes a proof of the formulas of \textit{E. Witten} [Commun. Math. Phys. 141, No. 1, 153-209 (1991; Zbl 0762.53063); J. Geom. Phys. 9, No. 4, 303-368 (1992; Zbl 0768.53042)] about the symplectic volumes and the intersection numbers of the moduli spaces of principal bundles on a compact Riemann surface.
openaire   +2 more sources

Heat Kernels on homogeneous spaces [PDF]

Journal of the Australian Mathematical Society, 2005
AbstractLet a1… adbe a basis of the Lie algebragof a connected Lie groupGand letMbe a Lie subgroup of,G. Ifdxis a non-zero positive quasi-invariant regular Borel measure on the homogeneous spaceX = G/MandS: X × G→ C is a continuous cocycle, then under a rather weak condition ondxandSthere exists in a natural way a (weakly*) continuous ...
openaire   +2 more sources