Results 11 to 20 of about 1,281,141 (243)

Conditions for Energy Efficient Heat Supply Based on the Transformed Heat of Soil and Air Flows

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
Based on the analysis of thermohydraulic processes and the structural and functional structure of the proposed system of heat and cold supply of buildings, a multifactorial dependence of the actual conversion coefficient was established to assess the ...
V. D. Petrash   +3 more
doaj   +1 more source

Thermo-Economic Analysis of Innovative Integrated Power Cycles for Low-Temperature Heat Sources Based on Heat Transformer

open access: yesSustainability, 2022
This paper proposes two novel integrated power cycles as appropriate systems for low-temperature heat sources. The proposed cycles encompass an absorption heat transformer (AHT) system to convert low-temperature heat source to high-temperature source and
Nazila Nematzadeh   +2 more
semanticscholar   +1 more source

Optimization of a cylindrical thermomagnetic engine for power generation from low‐temperature heat sources

open access: yesInternational Journal of Energy Research, 2021
A low‐grade heat source can be used as an operating fuel to run a thermomagnetic heat engine (TME), whose performance is determined by the interaction of the magnetic field between a permanent magnet and a thermomagnetic material used in the engine.
Rahate Ahmed   +6 more
semanticscholar   +1 more source

Electrochemical Methods for Exploiting Low‐Temperature Heat Sources: Challenges in Material Research

open access: yes, 2022
The exploitation of renewable low temperature heat sources below 100 °C can significantly contribute to the transition to a low‐carbon economy, in particular if applied to small and household scale.
D. Brogioli, F. La Mantia
semanticscholar   +1 more source

Bidding strategies for excess heat producers participating in a local wholesale heat market

open access: yesEnergy Reports, 2022
The heating sector of the European Union covers 80% of the household’s final energy consumption, which shows its relevance for the energy transition to the carbon neutral society, as set out in the Green Deal.
Borna Doračić   +3 more
doaj   +1 more source

Numerical Investigation on Auxiliary Heat Sources for Horizontal Ground Heat Exchangers

open access: yesBuildings, 2022
Human interference with the Earth’s climate cannot be ignored any longer. Renewable energy sources need utmost attention in all energy sectors. For buildings, geothermal energy for heating, cooling, and domestic hot water is a sustainable solution ...
Alexandru-Mihai Bulmez   +10 more
doaj   +1 more source

Experimental investigation of a cascaded organic Rankine cycle plant for the utilization of waste heat at high and low temperature levels [PDF]

open access: yes, 2020
A power plant with two cascaded organic Rankine cycles (CORC) to exploit waste heat from a 800 kWe combined heat and power plant, fueled by biogas, is designed and tested.
Heim, André   +4 more
core   +1 more source

Thermodynamic Optimization of Low-Temperature Cycles for the Power Industry

open access: yesEnergies, 2022
The fuel price increase and severe environmental regulations determine energy-saving importance. Useful utilization of low-potential heat sources with 300–400 °С temperature becomes topical.
Vladimir Kindra   +4 more
doaj   +1 more source

Mapping Local Synergies: Spatio-Temporal Analysis of Switzerland’s Waste Heat Potentials vs. Heat Demand

open access: yesEnergies, 2023
As nations transition to renewable energy, making use of waste heat becomes crucial to combat climate change. This study focused on quantifying Switzerland’s waste heat potential from industrial processes and waste-to-energy facilities, using diverse ...
Vanessa Burg   +4 more
doaj   +1 more source

Local Heating Networks with Waste Heat Utilization: Low or Medium Temperature Supply?

open access: yesEnergies, 2020
District heating enables an economical use of energy sources that would otherwise be wasted to cover the heating demands of buildings in urban areas. For efficient utilization of local waste heat and renewable heat sources, low distribution temperatures ...
Hanne Kauko, Daniel Rohde, Armin Hafner
doaj   +1 more source

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