Results 11 to 20 of about 143,631 (265)

The Heat Semigroup on Configuration Spaces

open access: yesPublications of the Research Institute for Mathematical Sciences, 2003
In this paper, we study properties of the heat semigroup of configuration space analysis. Using a natural “Riemannian-like” structure of the configuration space Γ_X over a complete, connected, oriented, and stochastically complete Riemannian ...
Kondratiev, Yuri   +2 more
openaire   +4 more sources

Experimental and Numerical Study of an Electrical Thermal Storage Device for Space Heating

open access: yesEnergies, 2018
An electrical thermal storage (ETS) device for space heating is designed in this study. The proposed device is charged by the off-peak electricity and releases its thermal energy to warm the space all day long.
Guizhi Xu   +5 more
doaj   +1 more source

Applicability of displacement ventilation and impinging jet ventilation system to heating operation

open access: yesJapan Architectural Review, 2021
This study aims to acquire an understanding of the fundamental feature of IJV and DV under heating operation. Full‐scale experiments were conducted under these two different systems and supply air conditions along with temperature distribution and ...
Haruna Yamasawa   +5 more
doaj   +1 more source

Data Analysis of Heating Systems for Buildings—A Tool for Energy Planning, Policies and Systems Simulation

open access: yesEnergies, 2018
Heating and cooling in buildings is a central aspect for adopting energy efficiency measures and implementing local policies for energy planning. The knowledge of features and performance of those existing systems is fundamental to conceiving realistic ...
Michel Noussan, Benedetto Nastasi
doaj   +1 more source

Assessment of the Space Heating and Domestic Hot Water Market in Europe—Open Data and Results

open access: yesEnergies, 2019
The paper investigates the European space heating (SH) and domestic hot water (DHW) market in order to close knowledge gaps concerning its size. The stimulus for this research arises from incongruences found in SH and DHW market’s data in spite of ...
Simon Pezzutto   +5 more
doaj   +1 more source

Experimental Study of The Performance of The Dual Purpose Solar Collector [PDF]

open access: yesEngineering and Technology Journal, 2014
In the present work, experimental study has been done to estimate the performance of solar heating system by air-water (Dual) solar collector. Flat plate dual solar collector with dimensions (120 cm length, 80 cm width and 15 cm thickness) has been used ...
Ahmed A. Mohammed Saleh   +1 more
doaj   +1 more source

A Review on Techno-Economic Assessment of Solar Water Heating Systems in the Middle East

open access: yesEnergies, 2021
Currently, the economy of Middle Eastern countries relies heavily on fossil fuel sources. The direct and indirect adverse consequences of fossil fuel utilization for power generation enforce the region’s countries to raise the share of renewable energy ...
Mehran Dehghan   +3 more
doaj   +1 more source

Identifying Key Factors in Determining Disparities in Energy Consumption in China: A Household Level Analysis

open access: yesEnergies, 2021
With the rapid progress of socio-economic development and urbanization in China, a wide variety of literature has focused on the phenomenon of energy-consumption disparity, which in turn could be related to numerous fundamental energy dilemmas that China
Ling Yang   +3 more
doaj   +1 more source

Parametric Investigation of a Ground Source CO2 Heat Pump for Space Heating

open access: yesEnergies, 2021
The objective of the present study is the parametric investigation of a ground source heat pump for space heating purposes with boreholes. The working fluid in the heat pump is CO2, and the geothermal field includes boreholes with vertical heat ...
Evangelos Bellos, Christos Tzivanidis
doaj   +1 more source

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

open access: yesBuildings, 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   +4 more
doaj   +1 more source

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