Guangxi green building design specification is to save resources and protect the environment, ensure the multi-level health needs of residents and users, promote the sustainable development of Guangxi economy, and standardize and guide the green building design in Guangxi. Then, what are the provisions of Guangxi green building design code for air conditioning cold and heat sources? The following is the introduction of the provisions of Guangxi green building design code for air conditioning cold and heat sources brought by the construction network for reference.
the setting of cold and heat sources of air conditioning system shall conform to the relevant energy-saving provisions of Guangxi local standard "Code for Design of Energy Efficiency of Public Buildings" DB45/T392.
when the inner area of a public building is large, and there is stable and sufficient residual heat in winter, the water-loop heat pump air conditioning system should be adopted.
it is advisable to optimize the capacity of cold and heat sources, the number of equipments and determine the operation modes of cold and heat sources by means of quantitative calculation or computer simulation.
in air-cooled heat pump systems, when the operating performance coefficient is lower than 1.8 in winter, air source heat pump cold and hot water units should not be used for heating.
the heat source of central air conditioning system should not adopt direct electric heating. Refrigerators should not be used to provide cooling capacity for buildings in winter.
The heat pump multi-split air conditioning system with variable refrigerant flow, which needs cooling and heating all year round, should give priority to the heat recovery multi-split air conditioning system with variable refrigerant flow after technical and economic comparison and analysis.
according to the time-of-use electricity price policy of the project location, the specific situation of the building and the time distribution of air conditioning load, after economic and technical analysis and comparison, water storage or ice storage can be adopted as the air conditioning cold source.
residential buildings should give priority to installing distributed air conditioning systems in each household, and the energy efficiency ratio of distributed room air conditioners or unit air conditioners should comply with the relevant provisions of Article 6 "Energy Saving Evaluation Value" of the current national standard "Limited Value of Energy Efficiency and Energy Efficiency Grade of Room Air Conditioners".
In hotels, restaurants, hospitals, baths and other places with large consumption of domestic hot water, when the economy and technology are reasonable, it is advisable to use heat recovery chillers or air-conditioned cooling water to heat domestic water.
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