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Keywords: heat pump
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Proceedings Papers

Proc. ASME. ES2023, ASME 2023 17th International Conference on Energy Sustainability, V001T02A010, July 10–12, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ES2023-107117
... of space heating and water heating systems is critical, and it requires energy-efficient and feasible solutions rather than electric coil heating. This study proposes a heat recovery-enabled heat pump technology (i.e., variable refrigerant flow with heat recovery (VRF-HR)) for space heating and domestic...
Proceedings Papers

Proc. ASME. ES2022, ASME 2022 16th International Conference on Energy Sustainability, V001T02A001, July 11–13, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ES2022-80868
... Abstract To solve the problem of low thermal efficiency of the organic Rankine cycle (ORC) and to enhance the coefficient of performance (COP) of ejector refrigeration cycle, an ORC combined with an ejector heat pump-based combined cooling, heat and power system using a zeotropic working fluid...
Proceedings Papers

Proc. ASME. ES2021, ASME 2021 15th International Conference on Energy Sustainability, V001T15A004, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ES2021-63776
... Abstract This paper presents an experimental apparatus designed and built to facilitate the study of solar-assisted heat pump (SAHP) systems using the hardware-in-loop methodology. The apparatus includes an 11.6kW capacity water-to-water heat pump, a 409L thermal storage tank, a 288L domestic...
Proceedings Papers

Proc. ASME. ES2010, ASME 2010 4th International Conference on Energy Sustainability, Volume 1, 431-437, May 17–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ES2010-90486
... 10 01 2011 In this paper, an experimental assessment and thermal performance of a prototype ammonia-water absorption heat pump are carried out. The experimentations are conducted for different operating conditions such as: filling up concentration (40 and 47%), inlet brine temperature...
Proceedings Papers

Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 1, 437-443, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90031
... 05 10 2010 As an energy-saving and environmentally friendly technology, the urban sewage source heat pump (USSHP) had been widely applied in the field of heating and air conditioning. Chinese researchers recently designed an urban sewage source heat pump system composed of a filth...
Proceedings Papers

Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 2, 817-824, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90249
... 05 10 2010 The low temperature operation of a heat pump makes it an excellent match for the use of solar energy. At the National University of Singapore, a solar assisted heat pump system has been designed, fabricated and installed to provide water heating and drying. The system also...
Proceedings Papers

Proc. ASME. ES2008, ASME 2008 2nd International Conference on Energy Sustainability, Volume 1, 683-690, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ES2008-54345
... In Chinese market, many homes use heat pump systems for heating and cooling. Domestic hot water is usually provided by a domestic water heater making use of electricity, natural gas or solar energy, which is known for its great energy costs. These systems consume much energy and increase...
Proceedings Papers

Proc. ASME. ES2008, ASME 2008 2nd International Conference on Energy Sustainability, Volume 2, 649-654, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ES2008-54162
... Seawater desalination is one of the most suitable areas for the utilization of solar thermal energy due to the coincidence, in many places of the world, of water scarcity, seawater availability and good levels of solar irradiation. The solar assisted heat pump provides a new horizon...