空调系统的方案比较（Comparison of schemes for air conditioning systems）.doc

空调系统的方案比较（Comparison of schemes for air conditioning systems） Central air-conditioning system schemes list? According to the use of air conditioning area: 20000 meters 2?? compared? A? Electric boiler with water cooled chillers? Two? + fuel boiler water-cooled chillers? Three? Water source heat pump scheme? Four? Lithium bromide direct combustion engine? Five VRV? Online system? Six? The air-cooled heat pump system with a total investment of 4 million 800 thousand??? 5 million 200 thousand? 4 million 800 thousand? 6 million? 8 million? 5 million 600 thousand? Operating costs? 39 yuan /m2 yuan 12-25 yuan 30-55? /m2? /m2? 40-78 /m2? 30 /m2? 17-35 /m2? The cooling tower water cooling water system is open? There is a system of bacteria Legionnaires disease phenomenon of environmental protection for the negative, and there water phenomenon, caused by free water consumption. The cooling water system is an open system? There are bacteria Legionnaires disease phenomenon of environmental protection for the negative, and there water phenomenon, caused by free water consumption. The whole system is a closed cycle system, which mainly extracts the cold and heat in the underground temperature water without water consumption, and the water is used as the carrier only. The cooling water consumption is large. The cooling water system is an open system there are bacteria Legionnaires disease phenomenon of environmental protection for the negative, and there water phenomenon, caused by free water consumption, with twenty thousand square meters has been built project as an example of the measured data of water consumption for 12t/h? Is the host of air-cooled condenser cooling with air cooling, does not exist the water consumption of the condenser is to host? Air cooled by the wind, there is no cooling water consumption. The whole air conditioning water system also adopts closed structure. The installation and construction of the complex system,?? computer auxiliary equipment, installa