Results 71 to 80 of about 468,653 (168)

Investigation of a Novel Air Source Heat Pump Test Platform [PDF]

open access: yes
A flexible air source heat pump testing platform is being developed at the National Renewable Energy Centre that will have the advantages of both a field trial and a laboratory test.
Shi, Yuan
core  

Characteristics of R134a/R410A Cascade Heat Pump and Optimization [PDF]

open access: yes, 2012
Single stage air source heat pump has been widely used around the world. However, it has some drawback, for example, deteriorated heating capacity and COP in cold ambient temperature.
Kim, Min Soo   +2 more
core   +1 more source

Drop-in Performance of Low GWP Refrigerants in a Heat Pump System for Residential Applications [PDF]

open access: yes, 2012
R410A is one of the main refrigerants used for air conditioning and heat pump systems in residential applications. It has zero ozone depletion potential but its global warming potential is about 2,000. In China and Japan, refrigerant R32 (GWP = 675, zero
Cremaschi, Lorenzo, Barve, Atharva
core   +1 more source

Study of the design Method of an Efficient Ground Source Heat Pump Thermal Source System in a Cold Area [PDF]

open access: yes, 2006
The ground source heat pump (GSHP) system-an energy efficiency and environment friendly system-is becoming popular in many parts of China. However, an imbalance usually exists between the annual heat extracted from and rejected to the ground due to the ...
Duanmu, L.   +4 more
core  

The integration of heat pipe technology into natural ventilation systems [PDF]

open access: yes, 2013
The aim of this research was to integrate heat pipe technology into natural ventilation air streams to provide passive cooling in regions of hot arid climatic conditions without the use of mechanical assistance.
Chaudhry, Hassam Nasarullah
core  

Research progress and prospects of deep geothermal resources in Jiyang Depression

open access: yesYouqi dizhi yu caishoulu
Geothermal resources are widely distributed in Jiyang Depression, with great potential. They would be essential directions for the development and utilization of geothermal resources of Shengli Oilfield in the future. The geothermal geological conditions
YANG Yonghong   +3 more
doaj   +1 more source

Effect Of Operational Parameters On Heat and Mass Transfer In Generator of R134a/DMF Absorption Refrigeration System [PDF]

open access: yes, 2012
Vapour absorption refrigeration systems (VARS) has regained the attention due to their potential for renewable/waste heat utilization. To improve the efficiency of these systems, it becomes obligatory to make component level studies on processes. In this
Pasupathy, Balamurugan, Annamalai, Mani
core   +1 more source

Inverse Design of Active‐Source Metamaterials for Thermal Camouflage with Arbitrary Active Sources

open access: yesAdvanced Science
Precise control of active‐source thermal fields is critical for advanced technological applications, including thermal camouflage, thermal protection, and energy harvesting.
Xianrong Cao   +9 more
doaj   +1 more source

Numerical modelling of multiple standing column wells applied to geothermal heating and cooling in UK buildings [PDF]

open access: yes
Standing column wells (SCWs) have the potential to deliver much higher rates of heat transfer to geothermal heating and cooling systems in buildings via heat pumps than conventional vertical borehole heat exchange arrays.
Ng, Bobo
core  

Comparison of Earth-Air and Earth-Water Ground Tube Heat Exchangers for Residentialal Application [PDF]

open access: yes, 2012
Earth-air systems are already commonly applied as a passive technique to reduce the overall energy use of buildings by reducing the required cooling or heating demand. However, they often require large surface area for their installation, and make use of
Liu, Liping   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy