Fan coil constant flow, variable flow fan coil, cold water flow temperature difference between small and run cold water side of the pipe network layout.
Fan coil is a constant flow of water in the coil dispenser fitted with the constant flow of fan coil element of the device, thus ensuring a constant flow rate and the amount of heat exchange. Depending on the type of fan coil configuration different set of water means, regardless of the location and circumstances pipe fan coil arrangement, it can be set to ensure that the flow of water can solve the air conditioning system hydraulic imbalances. For a given amount of water element in the fan coil performance characteristics and application of air conditioning system design to analyze the advantages and disadvantages of this technology results in engineering applications. Works by the two valves, the use of comparative analysis and engineering examples, describes two different applications regulating valve in the water system in balance. Variable flow fan coil fan coil is actually allowed depending on the cold, the heat load to variable water flow regulation, can solve the power delivery source and cold running costs of cold water. When the air conditioning system uses a variable flow operation, the operating characteristics of the entire system will also change.
 |
| High Efficiency horizontal concealed fan coil unit |
When the fan coils with variable water regulation, all caused by the heat, sensible heat, latent heat and cold supply and return water temperature changes in the law, the analysis of this mechanism leads to changes in the indoor relative humidity increases, and proposed a solution to this problem program. Fan coil installed them more independent and can be distributed to each air-conditioned room needed to facilitate individual adjustment and control. Obviously, different room locations need to configure different length and diameter of the delivery pipe. And an obvious drawback fan coil is very strict requirements for water, cold water flow changes lead to changes in unit cooling capacity, causing changes in indoor temperature and humidity parameters. Therefore, the light pipe fan coil network must be rigorous hydraulic calculation, to ensure that the inner coil water flow to meet the design requirements.
Large temperature difference air conditioning technology in the international community also belongs to the category of new technologies, though has entered the practical stage, but there are still many issues that need in-depth study and solve. Large temperature difference Study of air conditioning systems, including large temperature difference between cold air distribution system to study three aspects of the conventional air conditioning system with large temperature difference and air conditioning in large Chilled Water temperature difference, which is the final aspect of the issue to be discussed in this article. On Economy air conditioning in large Chilled Water temperature difference were analyzed, the results showed that cold water temperature changes on energy consumption throughout the chiller has little effect, but reduce the amount of cold water to reduce pump energy consumption, which is an investment can be reduced. In addition, on the choice of chillers, air conditioning units and water pumps, the paper introduces the design method of cold air-conditioning system with large temperature difference. Energy consumption of air conditioning systems of large temperature difference between the cold water to run the cooling system and the effective analysis can be calculated and compared with the nominal condition air-conditioning systems; simultaneous analysis of the energy consumption of cold water pump, made the best cold water outlet temperature operation and Importers temperature difference
没有评论:
发表评论