Results 81 to 90 of about 468,653 (168)

Thermodynamic analysis for definition of low-potential heat sources

open access: yesUnconventional Resources
This study presents a method for defining low-potential energy sources based on thermodynamic analysis. It defines low potential energy sources and presents the results of calculating temperature levels corresponding to the concept of a low potential ...
Michail Purdin
doaj   +1 more source

Analysis of Selection of Single or Double U-bend Pipes in a Ground Source Heat Pump System [PDF]

open access: yes, 2006
The ground source heat pump (GSHP) system is widely used because of its energy-saving and environmental-friendly characteristics. The buried pipes heat exchangers play an important role in the whole GSHP system design.
Duanmu, L., Hua, R., Shu, H.
core  

Energy-saving Potential Study on Telecommunication Base Station Free Cooling With a Thermosyphon Heat Exchanger in China [PDF]

open access: yes, 2012
The energy consumption of air conditioning for a telecommunication base station (TBS) in China can be significantly decreased when an air to air thermosyphon heat exchanger is used for free cooling in low atmosphere temperature days.
Zhou, Feng   +3 more
core   +1 more source

Thermal stress analysis of fuel element in particle bed reactor [PDF]

open access: yes, 2013
In this paper, a method of determination of temperature and thermal stress distributions in a fuel element of a new gas-cooled, thermal spectrum particle bed reactor (GCT-PBR) was derived.
Han, Lu
core  

Experimental Performance Comparison of High-Glide Hydrocarbon and Synthetic Refrigerant Mixtures in a High-Temperature Heat Pump

open access: yesEnergies
Several theoretical studies have predicted that refrigerant mixtures with glides of more than 20 K can yield COP improvements in heat pumps for operating conditions where the temperature difference between the heat source and heat sink is large, but ...
Leon P. M. Brendel   +5 more
doaj   +1 more source

Metodologia de otimização de ciclos de potência utilizando CO2 supercrítico [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2015.Este estudo considera análises e otimizações termodinâmicas multivariáveis da performance de ciclos
Battisti, Felipe Gesser
core  

Effects of dietary changes on heat stress in broiler and Kampung chickens [PDF]

open access: yes, 2012
Poultry meat production has increased drastically over the last 35 years. Most developing countries are in the tropics and often have high ambient temperatures.
Syafwan, W.
core  

Design and optimization of a micro heat sink for concentrating photovoltaic/thermal (CPVT) systems [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Belessiotis, V   +4 more
core  

Research Progress of Air-Source Heat Pump Technology in Agricultural Product Drying

open access: yesZhileng xuebao
The drying of agricultural products is a core aspect of post-harvest agricultural processing. Traditional drying techniques suffer from certain limitations, such as a low efficiency, high energy consumption, and poor quality, which make them difficult to
Zhang Hui Wang Yulin Liu Shuailing
doaj  

Optimal Design for a Hybrid Ground-Source Heat Pump [PDF]

open access: yes, 2006
Although the advantages of ground-source heat pumps over their conventional alternatives make these systems a very attractive choice for air conditioning, not only for residential buildings but increasingly also for institutional and commercial buildings,
Yu, Z., Wang, B., Yuan, X.
core  

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