Results 81 to 90 of about 278,375 (304)

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

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Thermal Performance Design and Analysis of Reversed Brayton Cycle Heat Pumps for High-Temperature Heat Supply

open access: yesEnergies
This study examined the performance of reversed Brayton cycle heat pumps to supply heat above 300 °C. The aim was to overcome the current temperature limitations faced by heat pump technology in industrial heat supply sectors by examining the viability ...
Jin-Seo Kim   +3 more
doaj   +1 more source

Heat pump for air-condition [PDF]

open access: yes, 2009
Bakalářská práce zahrnuje základní rozdělení tepelných čerpadel, přičemž se specializuje na tepelná čerpadla s možností chlazení. Blíže určuje výhodnější typy tepelných čerpadel pro vytápění i chlazení. Přibližuje jejich funkce, výhody i nevýhody. Zabývá
Potočník, Petr
core  

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

Ground source heat pumps [PDF]

open access: yes, 2012
Tato bakalářská práce popisuje a charakterizuje tepelná čerpadla země-voda. Obsahuje také souhrn ostatních druhů tepelných čerpadel z hlediska principu, získávání energie a ekologičnosti.
Nykl, František
core  

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Heat pumps [PDF]

open access: yes, 2010
Bakalářská práce obsahuje stručný úvod do problematiky tepelných čerpadel a rozebírá princip jejich fungování. Dále je v této práci zmíněno rozdělení a charakteristika kompresorů, tepelných výměníků a chladiv.
Kubik, Martin
core  

Minimising energy use in milk powder production using process integration techniques [PDF]

open access: yes, 2012
Spray drying of milk powder is an energy intensive process and there remains a significant opportunity to reduce energy consumption by applying process integration principles.
Atkins, Martin John   +4 more
core   +2 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy