Results 81 to 90 of about 27,756 (301)

Research on new cooling and waste heat utilization methods of liquid ring vacuum pump for coal mine gas extraction

open access: yesMeikuang Anquan
The high temperature of gas drainage liquid ring vacuum pump is an important reason for its low operating efficiency and short service life. Based on the wasted power dissipation theory of liquid ring pumps, the heat generation-heat dissipation mechanism
Yanmin WANG   +5 more
doaj   +1 more source

Improvements of high-temperature drying heat pumps

open access: yesInternational Journal of Refrigeration, 2010
Inadequate integration and/or inappropriate operating parameters of heat pump dryers may lead to troubles as too high/low discharge/suction pressures, low dehumidification efficiency and even mechanical damage to the compressor. This paper will help fix a number of common design errors and/or omissions, and suggests original control methods to avoid ...
openaire   +2 more sources

Future Prospects for Industrial Heat Pumps in Europe

open access: yes, 1987
The future prospects for industrial heat pumps in Europe are discussed in terms of possible applications, types of heat pumps to use, present situation, economic aspects, and other aspects, such as environmental ones.It is shown that there is a large ...
Berntsson, Thore,
core  

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Pinch Analysis Techniques for Carbon Emissions Reduction in the New Zealand Industrial Process Heat Sector

open access: yesChemical Engineering Transactions, 2015
Options for reducing industrial process heat greenhouse gas (GHG) emissions in New Zealand are investigated using the Carbon Emissions Pinch Analysis (CEPA) and Energy Return on Energy Invested (EROI) analysis methods.
M.R.W. Walmsley   +5 more
doaj   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

open access: yesAdvanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric   +8 more
wiley   +1 more source

A Technological Update on Heat Pumps for Industrial Applications

open access: yesEnergies
It is now widely confirmed by scientific evidence that greenhouse gas emissions must be reduced to counteract the effects of global warming. The production of heat for industrial purposes is responsible for 36.8% of world energy-related emissions due to ...
Sergio Bobbo   +4 more
doaj   +1 more source

Utilization of high temperature heat pumps in industrial heat production in Finland

open access: yes, 2023
Kandidaatintyössä selvitetään kuumalämpöpumppujen käyttömahdollisuuksia Suomen teollisuuslämmöntuotannossa. Työssä esitetyt kuumalämpöpumpputyypit ovat teollisuuteen tarkoitettuja ja niiden toiminnasta löytyy tietoja eri valmistajilta.
Rannikko, Jere
core  

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

High temperature heat pumps in dairy industry utilizing turbo compressor [PDF]

open access: yes, 2016
There exist several high temperature processes in UHT plants where a great amount of heat is wasted. To avoid this can energy efficient equipment be installed, such as high temperature heat pumps, which can recycles this heat.
Rossvoll, Petter Olsen
core   +1 more source

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