energy consumption is very high in greenhouses mainly due to off-season production. the main source of its energy supply is fossil fuels. due to the disadvantages of fossil fuels consumption and preventive laws in the incoming years, study on reducing consumption and replacing a part of them with renewable energy is essential. in this research, a solar heating system, equipped with a concentrat...

Title of Document Application of Plate Heat Exchanger for Low Temperature Lift Heat Pump Systems Song Li, Master of Science, 2012 Advisor Professor Reinhard Radermacher, Department of Mechanical Engineering In this thesis I investigated the energy saving potential of a low temperature lift heat pump (LTLHP) such as water source heat pump (WSHP), and studied the utilization of a plate heat excha...

Recently, it has been discovered that heat pump drying is an efficient method of drying for drying industries. Heat pumps deliver more heat during the drying process than the work input to the compressor. Heat pump drying is a more advanced method than the traditional South African industrial and agricultural drying methods, such as direct/indirect sunlight, wood burning, fossil fuel burning, e...

HPEAK: A COOL TOOL FOR ANALYZING HEAT PUMPS Heat pumps are getting smarter. Some of the newest models not only heat and cool your home but provide hot water as well. But how do these advanced systems affect energy consumption and are they cost effective? To get some answers, NIST researchers developed a computer program to evaluate the performance and economics of conventional and advanced heat...

Solar-heating technology is a promising solution to help China achieve the “3060 double carbon” target as soon possible. Seasonal thermal storage (STS) can effectively solve mismatch problem of solar-heating systems between supply and demand energy. Due instability solar radiation resources heat demand, it necessary analyze dynamic response characteristics operation strategy optimization system...

For the Dutch smart grid demonstration project Meppelenergie, the effects of controlled thermal energy storage within the floor heating structure of a living room by a heat pump are investigated. Storage possibilities are constrained by room operative and floor temperatures. Simulations indicate limitations for floor heating storage due to absorption of solar energy within the house. To balance...

In residential heat pump systems, the motivation for secondary loop systems is to allow for the use of flammable or toxic refrigerants with lower global warming potentials than the currently employed HFC refrigerants. The addition of radiant panels as integral building components (embedded in concrete at construction or attached to the underside of wood flooring) is becoming more common. Combin...

Since 2020, under the market trend of "carbon peak" and "post-coal reform" era, clean energy heating has ushered in development opportunities. This article mainly introduces current status solar combined heat pump, biomass energy, electricity, photovoltaic other methods, compares differences various types heating, analyzes advantages limitations puts forward reasonable suggestions.