Gas using efficiency in heating boilers for individual consumers

Abstract

Gas boilers for heating of individual consumers is used in all regions of Russia. Gas boilers are characterized by higher efficiency unlike on other types of organic fuels. Using dry natural gas reduces the polluting emissions into the atmosphere. A significant variety of gas boilers for individual heat supply meets the needs of consumers. The main requirements for individual heat supply from gas boilers are safety, economy, high efficiency, ease of use. These requirements are met by using gas with specified properties that meets standards. The required gas parameters for the consumer are provided due to the availability and functioning of the gas distribution system in the settlements. For the safety and efficiency of gas boilers, proper organization of air exchange in the room is necessary. To determine the efficiency of domestic gas boilers, the influence of the temperature of the air used in the combustion process is considered. Boilers with open the combustion chamber use internal air. Outside air is used in boilers with a closed combustion chamber. The study determines how the efficiency of a gas boiler changes at different temperatures outside air during the heating period. Losses of flue gases and chemical incomplete burning were taken into account when calculating the efficiency of gas boilers. The calculation was made taking into account the physical heat introduced by the air for burning. The study considered gas boilers with a heating capacity of 20, 30, 50, 100kW at a nominal operating mode. The annual effect of gas fuel saving is presented for natural dry gas with a calorific value of 34MJ/cub m.