The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A model of indoor PM2.5 concentration for a primary return air system is presented based on a balance of concentration. The variation in filter efficiency and outdoor air ratio with indoor PM2.5 concentration is discussed, with filters installed in the fresh, the return and supply vents. The simulation results show that when the proportion of outdoor air ratio increases, indoor PM2.5 pollutant concentration...
On the basis of existing urban central heating network, a distributed energy system is put forward. The objective function method is adopted to calculate the operating cost of heating season, the energy quality coefficient is used to evaluate the quality of different kinds of energy, and the exergy efficiency of heat exchange is analyzed to measure the energy utilization level. Operation cost and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.