The indoor environment quality(IEQ) in the dormitory of 9 universities has been investigated by the questionnaire for three times. The results indicate that the indoor air quality (IAQ) of the dormitory is very poor a...The indoor environment quality(IEQ) in the dormitory of 9 universities has been investigated by the questionnaire for three times. The results indicate that the indoor air quality (IAQ) of the dormitory is very poor and it is far beyond the acceptable standard of the IAQ. The discontentment rate of the IEQ in the dorm is rather high, and the factors affecting the IEQ concentrates on the air pollution, awful smell, thermal comfort, narrow individual space, etc. Also the spot tests were done in a university in Chongqing, and the results indicate that the 6 indexes, such as indoor temperature, humidity, the density of CO2, SO2 and dust,the total bacterium, etc, are far beyond the correlative standard.展开更多
Energy demand forecasting is the base for programming energy system. With the economy development, the increasing amount of energy consumption is in contradiction with the exhausted resource and destroyed environment....Energy demand forecasting is the base for programming energy system. With the economy development, the increasing amount of energy consumption is in contradiction with the exhausted resource and destroyed environment. For the sake of the sustainable development, the reasonable energy demand forecasting is needed, and it is the scientific reference for establishing energy developing stratagem and energy policy. But the traditional forecasting methods at present have some Jimitations. Artificial neural network(ANN) is a new and developing subject, whose capability of adaptability and self-study is excellent. Based on the analysis as above, the forecasting model with artificial neural network was established. This model is based on the idea of time series. Compared with the traditional algorithm, this model is more friendly and maneuverability, which is not only able to forecast for a short term, but also able to forecast for a long period. Based on the fact of Chongqing, the energy demand of Chongqing is analyzed, and then it is forecasted from 2002 to 2020 with the model, and the forecasting results are reasonable.展开更多
According to the different climatic characters of the different regions in West China, combining with energy efficiency in buildings (EEB) standards and local resources, this paper discussed the technologies of EEB ap...According to the different climatic characters of the different regions in West China, combining with energy efficiency in buildings (EEB) standards and local resources, this paper discussed the technologies of EEB applicable in the representative cities of freezing, cold, hot-summer and cold-winter, warm regions. The author exploredthe keystones of the EEB technologies'' development, but hasn''t recommended technology of EEB concretely.展开更多
Ground-source heat pump system is an air-conditioning form of energy efficient and environment protection. This article introduced the forms of ground-source heat pump systems, analyzed the problems of ground-source h...Ground-source heat pump system is an air-conditioning form of energy efficient and environment protection. This article introduced the forms of ground-source heat pump systems, analyzed the problems of ground-source heat pump systems in application in China, and put forward the solutions to these problems.展开更多
文摘The indoor environment quality(IEQ) in the dormitory of 9 universities has been investigated by the questionnaire for three times. The results indicate that the indoor air quality (IAQ) of the dormitory is very poor and it is far beyond the acceptable standard of the IAQ. The discontentment rate of the IEQ in the dorm is rather high, and the factors affecting the IEQ concentrates on the air pollution, awful smell, thermal comfort, narrow individual space, etc. Also the spot tests were done in a university in Chongqing, and the results indicate that the 6 indexes, such as indoor temperature, humidity, the density of CO2, SO2 and dust,the total bacterium, etc, are far beyond the correlative standard.
文摘Energy demand forecasting is the base for programming energy system. With the economy development, the increasing amount of energy consumption is in contradiction with the exhausted resource and destroyed environment. For the sake of the sustainable development, the reasonable energy demand forecasting is needed, and it is the scientific reference for establishing energy developing stratagem and energy policy. But the traditional forecasting methods at present have some Jimitations. Artificial neural network(ANN) is a new and developing subject, whose capability of adaptability and self-study is excellent. Based on the analysis as above, the forecasting model with artificial neural network was established. This model is based on the idea of time series. Compared with the traditional algorithm, this model is more friendly and maneuverability, which is not only able to forecast for a short term, but also able to forecast for a long period. Based on the fact of Chongqing, the energy demand of Chongqing is analyzed, and then it is forecasted from 2002 to 2020 with the model, and the forecasting results are reasonable.
文摘According to the different climatic characters of the different regions in West China, combining with energy efficiency in buildings (EEB) standards and local resources, this paper discussed the technologies of EEB applicable in the representative cities of freezing, cold, hot-summer and cold-winter, warm regions. The author exploredthe keystones of the EEB technologies'' development, but hasn''t recommended technology of EEB concretely.
文摘Ground-source heat pump system is an air-conditioning form of energy efficient and environment protection. This article introduced the forms of ground-source heat pump systems, analyzed the problems of ground-source heat pump systems in application in China, and put forward the solutions to these problems.
