• English
    • العربية
  • العربية
  • Login
  • QU
  • QU Library
  •  Home
  • Communities & Collections
Browsing by Author 
  •   Qatar University Digital Hub
  • Browsing by Author
  • Qatar University Digital Hub
  • Browsing by Author
  •      
  •  
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browsing by Author "Al- Khawaja, Mohammed"

    • 0-9
    • A
    • B
    • C
    • D
    • E
    • F
    • G
    • H
    • I
    • J
    • K
    • L
    • M
    • N
    • O
    • P
    • Q
    • R
    • S
    • T
    • U
    • V
    • W
    • X
    • Y
    • Z

    Sort by:

    Order:

    Results:

    Now showing items 1-13 of 13

    • title
    • publication date
    • submit date
    • ascending
    • descending
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100
      • Thumbnail

        Analysis of novel regenerative thermo-mechanical refrigeration system integrated with isobaric engine 

        Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed ( American Society of Mechanical Engineers , 2021 , Article)
        Refrigerants of the conventional cooling systems contribute to global warming and ozone depletion significantly, therefore it is necessary to develop new cooling systems that use renewable energy resources and waste heat ...
      • Analysis of the effect of global climate change on ground source heat pump systems in different climate categories 

        Mohamad, Kharseh; Altorkmany, Lobna; Al-Khawaja, Mohammed; Hassani, Ferri ( Elsevier , 2015 , Article)
        Ground source heat pump (GSHP) systems exhibit high thermal performance. Consequently, they are increasingly used to heat and cool buildings. The thermal performance of GSHP systems strongly depends on the operation ground ...
      • Combined effect of global warming and buildings envelope on the performance of ground source heat pump systems 

        Kharseh, Mohamad; Altorkmany, Lobna; Al-Khawaja, Mohammed; Hassani, Ferri ( Springer Link , 2014 , Book chapter)
        Heating and cooling systems as well as domestic hot water account for over 50 % of the world’s energy consumption. Due to their high thermal performance, ground source heat pump systems (GSHP) have been increasingly used ...
      • Thumbnail

        A combined thermo-mechanical refrigeration system with isobaric expander-compressor unit powered by low grade heat – Design and analysis 

        Ahmad K., Sleiti; Al-Khawaja, Mohammed; Al-Ammari, Wahib A. ( Elsevier , 2020 , Article)
        Refrigeration and air conditioning systems consume about 17% of the world-wide electricity and their conventional refrigerants cause ozone depletion and global warming. In this study a novel thermo-mechanical refrigeration ...
      • Comparison between different measures to reduce cooling requirements of residential building in cooling-dominated environment 

        Mohamad, Kharseh; Al-Khawaja, Mohammed; Hassani, Ferri ( Elsevier , 2014 , Article)
        In hot climate region like Arabian Peninsula, air conditioning systems are the major energy consumer. Therefore, there are compelling reasons to study the energy requirements in buildings sector to reduce the energy ...
      • Thumbnail

        Experimental investigation on the performance of a novel thermo-mechanical refrigeration system driven by an expander-compressor unit 

        Ahmad K., Sleiti; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed; Saker, Ahmad T. ( Elsevier , 2022 , Article)
        Operating thermos-mechanical refrigeration (TMR) ejector-based and organic Rankine cycle-based refrigeration systems at ultra-low temperature heat source (60 °C to 100 °C) is challenging and limited by their low coefficient ...
      • Thumbnail

        Integrated novel solar distillation and solar single-effect absorption systems 

        Ahmad K., Sleiti; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed ( Elsevier , 2021 , Article)
        Novel hybrid single-slope solar distillation systems integrated with single-effect solar absorption cooling system are designed, analyzed and optimized for production of cooling effect and freshwater, simultaneously. The ...
      • Thumbnail

        Laboratory-scale pull-out tests on a geothermal energy pile in dry sand subjected to heating cycles 

        Elzeiny, Rehab; Suleiman, Muhannad T.; Xiao, Suguang; Qamar, Mu’Ath Abu; Al-Khawaja, Mohammed ( National Research Council of Canada , 2020 , Article)
        Ground source heat pumps coupled with energy piles operate intermittently, subjecting the piles to temperature cycles throughout their lifetime. The research presented in this paper focuses on studying the thermomechanical ...
      • Thumbnail

        A novel solar integrated distillation and cooling system – Design and analysis 

        Ahmad K., Sleiti; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed ( Elsevier , 2020 , Article)
        To meet the high cooling and fresh water demands in hot and arid regions, a novel integrated solar cooling and solar distillation system is introduced. The system consists of a solar ejector cooling system integrated with ...
      • Thumbnail

        Potential of ground source heat pump systems in cooling-dominated environments: Residential buildings 

        Mohamad, Kharseh; Al-Khawaja, Mohammed; Suleiman, Muhannad T. ( Elsevier , 2015 , Article)
        For countries in the Arabian Peninsula, air conditioning (A/C) systems account for 65% of the energy consumption, all of which comes from fossil fuel. Given the preparation for the 2022 World Cup, which will be held in ...
      • Review of innovative approaches of thermo-mechanical refrigeration systems using low grade heat 

        Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed ( Hindawi , 2020 , Article)
        Cooling and refrigeration systems consume around 17% of the world-wide electricity. Enhancing the performance of these systems, using renewable energy resources and waste heat recovered from industrial processes, will lead ...
      • Thumbnail

        Soil-concrete interface properties subjected to temperature changes and cycles using direct shear tests 

        Xiao, Suguang; Suleiman, Muhannad T.; Elzeiny, Rehab; Xie, Huan; Al-Khawaja, Mohammed ( American Society of Civil Engineers Library (ASCE Library) , 2017 , Conference)
        Geothermal foundations (energy piles) combine the structural function of deep foundations with the ground source heat exchangers to transfer geothermal energy to superstructures. The intermittent operation of the geothermal ...
      • Thumbnail

        Supercritical Carbon Dioxide Power Cycle Integrated with Solar Power Tower and Oxy-Combustor 

        Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Gamil, Ahmed I.; Al-Khawaja, Mohammed (2021 , Conference)
        Power cycle that integrates solar power tower (SPT) system with direct oxy-combustion (DOC) supercritical CO2 cycle is proposed and investigated. In the SPT/DOC-sCO2 cycle (Cyc 3), the SPT works as preheater for the DOC/sCO2 ...

        Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

        Contact Us | Send Feedback
        Contact Us | Send Feedback | QU

         

         

        Home

        Submit your QU affiliated work

        Browse

        All of Digital Hub
          Communities & Collections Publication Date Author Title Subject Type Language Publisher

        My Account

        Login

        Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

        Contact Us | Send Feedback
        Contact Us | Send Feedback | QU