Sugar contamination of boiler feedwater by smallcontinuous traces is not as serious as that from large 'slugs' which frequently find their way into the boilers. Reference is made to several incidents of sugar contamination in boilers to showthat the most commoncauses are a malfunction of the feedwater system or its mismanagement, and to show that the method of sugar detection is seldom at fault...

Islands face limitations in producing and transporting energy due to their geographical constraints. To address this issue, the ROBINSON project, funded by EU, aims create a flexible, self-sufficient, environmentally friendly system that can be used on isolated islands. The feasibility of renewable electrification heating decarbonization Eigerøy Norway is described article. A mixed-integer line...

The operating principle of condensing boilers is based on exploiting heat from flue gases to pre-heat cold water at the inlet of the boiler: by condensing into liquid form, flue gases recover their latent heat of vaporization, leading to 10e12% increased efficiency with respect to traditional boilers. However, monitoring the energy efficiency of condensing boilers is complex due to their nonlin...

The rigid constraint of using heat in determining electricity for thermal power units is eliminated to improve the absorption capacity wind power. In this study, storage devices and electric boilers are added cogeneration system alleviate curtailment phenomenon. First, main reasons analyzed according structural characteristics supply northern part China. Second, a scheduling model system, inclu...

Mr. Nowak's paper finally puts European incinera­ tor practice in its proper perspective. It is interest­ ing to note that incineration is selected for the dis­ posal of refuse for the same reasons in his country that are usually used in our country. Perhaps the decision to generate steam from refuse in this country will follow thei r decision process. Mr. Nowak has pointed out that burning ref...

The values of reaction forces in the boiler supports are the basis for the dimensioning of bearing steel structure of steam boiler. In this paper, the application of the method of equivalent stiffness of membrane wall is proposed for the calculation of reaction forces. The method of equalizing displacement, as the method of homogenization of membrane wall stiffness, was applied. On the example ...

This document describes the motivations for and the effects of cofiring biomass with pulverized coal (pc) in pc-fired boilers. Such cofiring represents a near-term, low-risk, low-cost option for reducing the net CO2 emissions from the power generation sector. This document focuses on four of the critical fireside issues associated with cofiring: ash deposition, NOx production, corrosion, and ca...

Graphical representation is useful to illustrate complex structure in a direct or intuitive way. A graph is a symbolic of network and its connectivity can be simplified as a set of linked notes. In recent studies of complex control system, directed graph has been introduced to define and interpret the interconnection structure underlying the dynamics of the interacting subsystem. Generally, the...

Increasing world-wide energy use and growing population growth presents a critical need for enhanced energy efficiency and sustainability. One method to address this issue is via waste heat scavenging. In this approach, thermal energy that is normally expelled to the environment is transferred to a secondary device to produce useful power output. This paper investigates a novel MEMS-based boile...

With the advancement of software engineering in recent years, the model checking techniques are widely applied in various areas to do the verification for the system model. However, it is difficult to apply the model checking to verify requirements due to lacking the details of the design. Unlike other model checking tools, LTSA provides the structure diagram, which can bridge the gap between t...