Results 21 to 30 of about 2,695,475 (278)
Mokslas: Lietuvos Ateitis, 2015 Heat pump systems are promising technologies for current and future buildings and this research presents the performance of air source heat pump (ASHP) system. The system was monitored, analysed and simulated using TRNSYS software.
Karolis Januševičius +1 more
doaj +1 more source
Investigation of the aerodynamic characteristics of a lifting body in ground proximity [PDF]
, 2016 The use of cambered hull shapes in the next generation of lighter-than-air vehicles to enhance aerodynamic performance, together with optimized take-off manoeuvre profiles, will require a more detailed understanding of ground proximity effects for such
Garry, Kevin P. +2 more
core +1 more source
A Numerical Study on System Performance of Groundwater Heat Pumps
Energies, 2015 Groundwater heat pumps have energy saving potential where the groundwater resources are sufficient. System Coefficients of Performance (COPs) are measurements of performance of groundwater heat pump systems.
Jin Sang Kim, Yujin Nam
doaj +1 more source
The method of turbulent transformation of energy
Engineering Reports, 2023 Currently, new methods of energy transformation are of interest. The results of the researches in the directions of anisotropic transformation of electric energy show that the existing devices are characterized by a small coefficient of transformation ...
Anatoly Ashcheulov +2 more
doaj +1 more source
Preparation and characterization of cogon grass natural fiber as a concrete filler for gamma radiation shielding [PDF]
, 2021 Concrete is a combination of cement, fine aggregate, coarse aggregate, and water. Concrete has a high shielding potential against gamma radiation from radioactive source.
Mohd Yusof, Yusrina, Othman, Siti Amira
core
International Journal of ThermofluidsThe aim of the present work is to exploit the potential of nanoparticles in improving the heat transfer characteristics of refrigerant and to investigate the effect of nanorefrigerant in the overall performance of a vapour compression refrigeration ...
Sanukrishna S S +2 more
doaj +1 more source
Investigation on the Performances of Vuilleumier Cycle Heat Pump Adopting Mixture Refrigerants
Entropy, 2017 The performances of thermodynamics cycles are dependent on the properties of refrigerants. The performances of Vuilleumier (VM) cycle heat pump adopting mixture refrigerants are analyzed by MATLAB software using REFPROP programming.
Yingbai Xie, Kai Zhong
doaj +1 more source
Energies, 2021 To optimize the performance of the transcritical CO2 two-stage compression refrigeration system, the energy analysis and the exergy analysis are conducted.
Yuyao Sun, Jinfeng Wang, Jing Xie
doaj +1 more source
Performance of Alternative Refrigerant R431A on Air- Conditioning System under Real Transient Conditions [PDF]
Engineering and Technology Journal, 2013 This paper presents the performances of new ozone-friendly refrigerant (R431a) in air-conditioning system were investigated experimentally and compared with R22 under transient conditions.R431a has no ozone depletion potential and very low greenhouse ...
Haider ali hussen
doaj +1 more source
Performance analysis of nanostructured Peltier coolers
, 2018 Employing non-equilibrium quantum transport models, we investigate the details and operating conditions of nano-structured Peltier coolers embedded with an energy filtering barrier.
Muralidharan, Bhaskaran, Singha, Aniket
core +1 more source