Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ahmed J. Hamad"'
Publikováno v:
Case Studies in Thermal Engineering, Vol 31, Iss , Pp 101808- (2022)
The adsorption thermophysical battery (ATB) is considered one of the solutions for energy shortage problems in many energy-stressed countries. Various cheap energy resources such as, geothermal and solar energy can be used as power inputs in the ATB
Externí odkaz:
https://doaj.org/article/98bb90075ae94054a4551799850b43b7
Autor:
Ahmed J. Hamad
Publikováno v:
Fluids, Vol 6, Iss 8, p 275 (2021)
One essential utilization of phase change materials as energy storage materials is energy saving and temperature control in air conditioning and indirect solar air drying systems. This study presents an experimental investigation evaluating the chara
Externí odkaz:
https://doaj.org/article/f1a8606bff284467bb03564c5cebd422
Autor:
Ahmed J. Hamad, Zahraa Kareem Yasser
Publikováno v:
Journal of Engineering, Vol 25, Iss 1 (2018)
This paper presents an experimental and theoretical analysis to investigate the two-phase flow boiling heat transfer coefficient and pressure drop of the refrigerant R-134a in the evaporator test section of the refrigeration system under different op
Externí odkaz:
https://doaj.org/article/91c24e5463c64f188d3406c07242e526
Publikováno v:
Engineering and Technology Journal, Vol 33, Iss 8A, Pp 1798-1812 (2015)
In presentwork, a sub-coolingauxiliary system is integrated with vapour compression refrigeration system to predict the performance characteristics and energy saving of the system. An experimental investigation was performed to determine the performa
Externí odkaz:
https://doaj.org/article/82867f918ae24cf5910316e79f5d06df
Autor:
Ahmed J. Hamad
Publikováno v:
Diyala Journal of Engineering Sciences, Vol 9, Iss 1 (2016)
This work presents an experimental study to investigate the performance of vapor compression refrigeration system using hydrocarbon mixtures. A sub-cooling circuit and phase separator are integrated with main vapor compression refrigeration system an
Externí odkaz:
https://doaj.org/article/535b97a0e0f34e1989775864d3663062
Publikováno v:
Energy Engineering. 118:1483-1497
Autor:
Ahmed J. Hamad
Publikováno v:
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 68:164-176
The impact of the solar photovoltaic cell temperature on module output performance parameters is investigated experimentally under conditions of Baghdad city climate in the present study. The tests are conducted using a test rig for Polycrystalline s
Publikováno v:
Journal of Mechanical Engineering. 16:63-76
The performance of vapor compression refrigeration system with controllable speed compressor and vapor and liquid refrigerant injection techniques is experimentally investigated. For this purpose, a 5-tons (17.6 kW) split air conditioner unit charged
Publikováno v:
Thermal Science and Engineering Progress. 28:101060
The energy demand in HVAC utilization has been steadily increasing, specifically in warm climate countries such as Iraq. Therefore, searching for advanced air conditioning systems driven by waste energy sources such as adsorption air conditioning sys
Publikováno v:
Journal of University of Babylon for Engineering Sciences. 26:16-31
An experimental investigation of refrigerant R-134a two-phase flow condensation heat transfer coefficient and pressure drop in condenser tube section of refrigeration system under different operating conditions is presented. The experimental and theo