In this study, a reputable Kalina cycle system, KCS 11, is simulated and analysed. Within this efficient cycle, there are three heat exchangers: the first heat exchanger is designated for heat absorption from the heat source, the second heat exchanger is designed for heat release to the cold source, and the third heat exchanger is designed for energy recovery. In order to achieve precise si...

Oxy-fuel combustion is a key technology to realize CO2 capture and storage in coal-fired power boilers the future. In recent years, there have been extensive studies on it. This review summarizes some results of fundamental research oxy-coal combustion. By comparing with traditional boiler air station, typical characteristics are introduced from four aspects: combustion, heat transfer, pollutan...

Salt solution pool boiling is of great significance in thermal engineering equipment, such as boilers and heat exchangers. Few researchers have been able to draw on systematic research into the impacts salt concentration transfer coefficients. This experimental work aimed understand role dissolved salts performance, which affected by surface wettability bubble dynamics. Pool experiment was cond...

Few laboratory stands can simulate the operation of direct-flow boilers. The processes occurring therein are complex both hydraulically and thermophysically. A study fluid dynamics coolant in a cylindrical composite coil shows that it is possible to influence boiler performance. movement air through coils also interest for intensification heat exchange process steam Modern automation devices ma...

heat transfer mechanisms and the solidification process are simulated for a continuous casting machine and the geometric shape of the liquid pool is predicted considering different conditions. a heat transfer and solidification model is described for the continuous casting of steel slabs. the model has been established on the basis of the technical conditions of the slab caster in the continuou...

To achieve as complete fuel burnout with little excess air possible, small wood log boilers (< 50 kW) use stage combustion. The first is often a process similar to downdraft gasification that consequently produces flue gas laden particulates. prevent the build-up of solids and promote heat transfer in pipes convective part these boilers, wire coils are used. paper presents their in-situ exam...

The main features of energy and exergy methods analysis the transformations efficiency in typical heating systems (boilers, electric heating, heat pumps with drive) are presented. equations balances their elements made. Based on them, expressions for calculating indicators obtained. results calculations comparison conversion coefficients (COP - Coefficient Performance) efficiencies (Exergy Effi...

Centrifugal heat pump has to be coupled with gas boiler to supply high temperature water in radiator heating system. Regarding to hybrid heating system (HHS), operation strategy has significant impact on its annual energy consumption and cost. In this paper, the optimal operation strategy of the HHS composed of sewage-source centrifugal heat pumps and gas boilers was analyzed. Firstly, the perf...

Experimental investigations has been done to find out the heat transfer characteristics and friction factor of water based Al2O3 nanofluids as a coolant in  brazed plate heat exchanger. Plate heat exchanger either use horizontally or vertically. The base plate of the plate heat exchanger was kept inclined at (0⁰, 30⁰ ,60⁰, 90⁰). The experimentation have been done on the two different concentrat...

the subjects of heat transfer and cooling system are very important topics in the internal combustion engines (ice). in modern cooling systems, low weight, small size and high compactness are the critical designing criteria that requires heat transfer enhancement. boiling phenomenon which is occurred in the water jacket of the ice is one of the methods to increase heat transfer in the coolant s...