Results 11 to 20 of about 397,115 (228)

TWO-STAGE HEAT PUMPS FOR ENERGY SAVING TECHNOLOGIES

open access: yesHolodilʹnaâ Tehnika i Tehnologiâ, 2017
The problem of energy saving becomes one of the most important in power engineering. It is caused by exhaustion of world reserves in hydrocarbon fuel, such as gas, oil and coal representing sources of traditional heat supply.
A. E. Denysova   +3 more
doaj   +1 more source

Ground-Source Heat Pumps with Horizontal Heat Exchangers for Space Cooling in the Hot Tropical Climate of Thailand

open access: yesEnergies, 2019
The cooling of spaces in tropical regions, such as Southeast Asia, consumes a lot of energy. Additionally, rapid population and economic growth are resulting in an increasing demand for space cooling.
Arif Widiatmojo   +6 more
doaj   +1 more source

Geothermal power based ULTDH for cooling and heating purposes [PDF]

open access: yesE3S Web of Conferences, 2019
Ultra-low temperature district heating systems facilitate use of waste and renewable heat sources. The article presents a possible scheme of operation and optimisation of small ultra-low temperature district heating system consisting of waste heat source,
Ciapała Bartłomiej, Janowski Mirosław
doaj   +1 more source

Integration of Desalination Systems to Low Grade Heat Source in Site Utility

open access: yesChemical Engineering Transactions, 2012
Conventional desalination technologies are energy intensive and if the required energy hails from fossil fuel source, then the freshwater production will contribute to carbon dioxide emission and consequently global warming.
H. Ghalami   +3 more
doaj   +1 more source

Design and analysis of a novel dual source vapor injection heat pump using exhaust and ambient air

open access: yesEnergy and Built Environment, 2022
A novel dual source vapor injection heat pump (DSVIHP) using exhaust and ambient air is proposed. The air exhausted from the building first releases energy to the medium-pressure evaporator and is then mixed with the ambient air to heat the low-pressure ...
Jing Li   +7 more
doaj   +1 more source

LOW POTENTIAL HEAT SOURCES AND REQUIREMENTS FOR HEAT EXCHANGE EQUIPMENT FOR ENERGY EFFICIENT UTILIZATION OF SUCH HEAT

open access: yesIntegrated Technologies and Energy Saving, 2019
Наведено аналіз можливих джерел тепла низького потенціалу серед яких визначено потоки після промислових процесів, стічні води та вентиляційне повітря будівель, тепло спалювання промислових та побутових відходів, тепло сонячних колекторів та геотермальне тепло. Утилізація цього тепла дозволяє в значній мірі скоротити потреби в викопних паливах та викиди
openaire   +4 more sources

Hybrid solar thermal and heat pump systems in industry: Model based development of globally applicable design guidelines

open access: yesSolar Energy Advances, 2023
Solar thermal heating systems and heat pumps are key technologies for decarbonizing low temperature industrial heat demand. Fluctuating solar irradiance, limited heat source capacity or limited availability of renewable electricity often limit the ...
Mateo Jesper   +3 more
doaj   +1 more source

THE CENTRALIZED SYSTEM OF HEAT SUPPLY WITH THERMAL PUMPS

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2016
The article presents the analysis of technical and economic efficiency of replacement of a boiler house by a heatpumping unit that uses as a low potential heat source the heat electropower station waste water.
O. A. Stepanov   +3 more
doaj   +1 more source

Low Enthalpy Geothermal Resources for Local Sustainable Development: A Case Study in Poland

open access: yesEnergies, 2020
Many regions in Poland face the problem of air pollution. These regions include, though are not exclusive, to health resorts, an important element of the healthcare industry.
Aleksandra Szulc-Wrońska   +1 more
doaj   +1 more source

Building a Zero-Carbon Thermal System [PDF]

open access: yes中国工程科学
The development of a new zero-carbon thermal system is critical for achieving China’s energy transition and carbon neutrality goals. Heat pumps are a key enabling technology in this process, and their successful deployment hinges on two factors ...
Yi Jiang   +5 more
doaj   +1 more source

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