Saturday, January 29, 2011

【 Weak current College 】 water source heat pump technology in application note some issues



Water sources (geothermal) heat pumps use surface water as the heat source, water temperature in the summer than the ambient air temperature is low, therefore reducing refrigeration condensing temperature, cooling effect better than air cooling and water cooling tower, the winter temperature than ambient air temperature is high, the heat pump cycle of evaporating temperature increases, the energy efficiency ratio also improved; there is no winter air-source heat pumps, and other difficult problems for defrosting. In the use of water sources (geothermal) heat pump should note the following aspects:
In adopting water-source heat pump technology, early hydrologic analysis is particularly important, must be based on the actual situation of underground water to conduct a feasibility study on the analysis. Applicable principles: proper water adequate, water temperature, water well, water supply, stable, reliable recharge. Therefore, the earlier a serious, scientific hydrogeological exploration work is necessary.
Water source heat pump, central air-conditioning host is the core of heat and cold sources, its quality have a direct impact on the overall system reliability and performance. It is proposed to adopt a good reputation home and abroad, especially in the technical quality, production history, service good brands.
We all know, water source heat pump air conditioning energy efficiency ratio (COP value, approximately equal to the output/input power) is higher than conventional air conditioning, but there are limits, usually in 4, 6, but some manufacturers nominal its heat pump efficiency ratio can reach up to 7, 8, or even a few there are 11, 12. This is not realistic, not science, is on the user's extremely irresponsible, is a fraud.
The key technology of water-source heat pump is well. Wells of well drilling technology is extremely important, you must request a large-diameter steel tube. CIAT in wells in France has unique technology and experience in the field can save part than the traditional way of water consumption, and be able to successfully implement the same pumping and irrigation.
Due to the water source heat pump air conditioning system usage is extremely high, and so on device performance and quality requirements are also quite high, various kinds of auxiliary equipment and materials for reasonable matching is also the basis for obtaining good results. CIAT's style is a construction works to maintain a high level, select high-quality equipment and materials, the project made show, promotional window to owners better social benefits.
Central air conditioning system is a long-term use, high reliability requirements, must be able to guarantee the long-term reliable operation, the use effect. In the design and construction of primary consideration is the strict quality control to ensure the quality of the works, and in line with national standards and specifications, design or equipment selection, engineering, construction, drilling and recharging and so on each link must be around the Center.



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