This paper studies planning problems for a group of heating systems which supply the hot water demand for domestic use in houses. These systems (e.g. gas or electric boilers, heat pumps or microCHPs) use an external energy source to heat up water and store this hot water for supplying the domestic demands. The latter allows to some extent a decoupling of the heat production from the heat demand...

During the lifetime of any industrial equipment, including steam boilers and pressure vessels, it may be required, for various reasons, to estimate its remaining service lifetime. The operation of steam boilers is a complex process resulting in metal fatigue due to temperature cycling and pressure fluctuation, as well as in erosion and chemical depositions. Thus, during boiler operation, variou...

We report our ten-year experience of hyperchlorination, thermal shock, chlorine dioxide, monochloramine, boilers and point-of-use filters for controlling legionella contamination in a hospital hot water distribution system. Shock disinfections were associated with a return to pre-treatment contamination levels within one or two months. We found that chlorine dioxide successfully maintained leve...

Impact of waste fuels (virgin/waste wood, mixed biofuel (peat, bark, wood chips) industrial, household, mixed waste fuel) and incineration technologies on partitioning and leaching behavior of trace elements has been investigated. Study included 4 grate fired and 9 fluidized boilers. Results showed that mixed waste incineration mostly caused increased transfer of trace elements to fly ash; part...

According to the characteristics of boiler combustion process, we use image processing technique to extract features that characterize the features of flame. On requirements of good real-time performance boiler burning diagnose system, we develop a set of PC add DSP real-time image acquisition and burning diagnosis system on the 200MW boilers. The results show that the system is simple, practic...

The combustion of two non-woody types biomass (almond shells and exhausted olive cake) in a domestic boiler at different loads was studied order to evaluate their suitability as fuels. To select the optimal operating conditions (excess air, primary/secondary air ratio grate vibration), which allows for lower CO particulate matter emissions each load, statistical design experiments performed. Si...

Wood biomass fuels have become increasingly important in terms of achieving future sustainability targets regarding RES, especially to reduce GHG and the use domestic energy sources, on other hand with these pulutant air emissions be addressed great attention. Nowadays, staging flue gas recirculation are often used as a primary emission reduction measure large scale fuel fired boilers, but thei...