Abstract
In the context of green development and sustainable development, in response to the national policy of “carbon neutrality and peak carbon dioxide emissions”, we will fully implement clean energy heating and reduce air pollution. Air energy is the representative, bringing the comfortable, efficient, safe and energy-saving environment to people. For an office building in Nanjing, which is located in hot-summer and cold-winter zone, an air source heat pump unit is designed as a cold and heat source system to meet the demand for heating in winter and cooling in summer. At the same time, compared with the traditional cold and heat source system which is designed central heating in winter and multi-line refrigeration in summer, the result of economic analysis shows that the use of air source heat pump as the cold and heat source system of office buildings is more economical and energy-saving. It is suitable to popularize and apply in China’s hot-summer and cold-winter zone.
Highlights
The air source heat pump unit uses the energy in the air as the main power
This project is an energy-saving office building located in Nanjing, Jiangsu Province.The building area is 6000m2, designed according to the building energy saving 65%
The operating cost of the air source heat pump unit is extra 6,000 yuan per year, the initial investment of central heating and varied refrigerant volume cannot be fully covered within the service life of varied refrigerant volume for 20 years
Summary
The air source heat pump unit uses the energy in the air as the main power. It has the characteristics of simple system structure, convenient installation, high degree of automation and utilization of renewable energy And it is widely used at home and abroad. Nanjing is located in China's hot-summer and cold-winter zone. There is no central heating in winter,so air source heat pump is a better option.
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