This paper describes a construction and characteristics of a coal-gas-burning high e ciency power plant which emits no carbon dioxide (CO 2 ) into the atmosphere. In the plant, CO 2 gas and superheated steam are used as the main and sub working uid, respectively, of a closed dual uid gas turbine power generation system. It is assumed that a coal gas whose principal compositions are CO, H 2 , CO...

In cold winter weather, the air-cooled condensers (ACCs) face serious freezing risks, especially with part load of the power generating unit. Therefore, it is of benefit to investigate the heat transfer process between the turbine exhaust steam and cooling air, by which the freezing mechanism of the finned tube bundles can be revealed. In this work, the flow and heat transfer models of the cool...

Positive coupling effect in gas condensate reservoirs is assessed through a pure theoretical approach. A combination of linear stability analysis and long bubble approximation is applied to describe gas condensate coupled flow and relative permeability, thereof. The role of capillary number in gas condensate flow is clearly expressed through closed formula for relative permeability. While the m...

In Central Europe the main species that are used for the production of sawn wood are spruce, pine, and European beech. After the sawing process, the sawn timber is technically dried to a certain moisture content by means of condensation drying. The water movement in the cellular structure, which is caused by the drying process, draws some of the extractives into solution. In the process of kiln...

A scalable new mathematical model based on the principles of Process Integration has been developed for the analysis of multiple effect evaporator (MEE) systems. It uses the concepts of stream analysis, temperature path and internal heat exchange for the formulation of model equations. In addition to above the model also takes into account variable physico-thermal properties of steam/vapor, con...

This paper deals with the possibilities for the reduction of thermal environmental pollution and increases in the efficiency of the condensate system of a turbine by installing an inverter heat pump system. The inverter heat pump system will use the heat energy of the turbine exhaust steam that would otherwise be rejected. The operation of a condenser cooling system in a heating plant will be p...

In the present investigation, a nonlinear mathematical model is developed for the analysis of Septuple effect flat falling film evaporator (SEFFFE) system used for concentrating weak black liquor in a nearby paper mill. This model is capable of simulating process of evaporation considering variations in boiling point rise (), overall heat transfer coefficient (U), heat loss from evaporator (Ql...

The Caviahue-Copahue Volcanic Complex (CCVC) hosts one of Argentina's most important geothermal systems. To provide new insights into origin, circulation, and residence time fluids, the chemical isotopic composition (3He/4He, ?2H-?18O in H2O; ?13C-?18O CO2; 87Sr/86Sr) thermal waters was measured together with 3H 14C activities. Water samples were collected from hot springs (LM, TC, LMM, CB AF) ...

The paper deals with a detailed analysis of published analytical relations for heat transfer during steam condensation in vertical tube. historical development the approaches and chronological used are presented. Attention is focused on description processes at gas phase-condensate film interface as well inclusion influence presence non-condensable gases. 12 modifications compared each other sa...

Recently, in most of the condensate tank production projects, two main activities of welding and painting are done in manual and automatic ways. The purpose of this study is "green supply chain management" of these activities in order to select the best production method. For this purpose, by literature reviews and using Delphi and DEMATEL techniques, the indicators and sub-indicators of green ...