Thermal coupling system analysis of a nuclear desalination plant

2010 ◽  
Vol 4 (2) ◽  
pp. 123 ◽  
Author(s):  
A.K. Adak ◽  
V.K. Srivastava ◽  
P.K. Tewari
Keyword(s):  
System Analysis ◽  
Thermal Coupling ◽  
Desalination Plant ◽  
Coupling System

A Computer Program for Simulating Transient Behavior in Steam Turbine Stage Pressure of AHWR

2006 ◽  
Author(s):  
Anu Dutta ◽  
I. Thangamani ◽  
G. Chakraborty ◽  
A. K. Ghosh ◽  
H. S. Kushwaha
Keyword(s):  
System Analysis ◽  
Mathematical Formulation ◽  
Load Condition ◽  
Low Pressure ◽  
Research Centre ◽  
Turbine Stage ◽  
Feed System ◽  
Part Load ◽  
Desalination Plant ◽  
Load Conditions

It is proposed to couple the Advanced Heavy water reactor (AHWR), which is being developed by Bhabha Atomic Research Centre, India, with a desalination plant. The objective of this coupling is to produce system make-up and domestic water. The proposed desalination plant needs about 1.9 kg/sec of steam and the minimum pressure requirement is 3 bars. The desalination plant can be fed with bled steam extracted from a suitable stage in low pressure turbine. As the turbine stage pressure changes with the load, it is essential to know the availability of bled steam at aforesaid pressure for various load condition. The objective of the present study is to identify a suitable extraction point so as to ensure availability of steam at desired condition for desalination plant, even at part load conditions. In order to fulfill the above objective a steam and feed system analysis code was developed which incorporates the mathematical formulation of different components of the steam and feed system such as, high pressure (HP) and low pressure (LP) turbines, re-heater, feed heaters etc. The dynamic equations are solved simultaneously to obtain the stage pressure at various load conditions. Based on the results obtained, the suitable extraction stage in LP turbine was selected. This enables to determine the lowest possible part load operation up to which availability of desalination plant could be ensured.

scholarly journals Research on Combined Electricity and Heating System Scheduling Method Considering Multi-Source Ring Heating Network

2021 ◽  
Vol 9 ◽  
Author(s):  
Jing Ye ◽  
Danyang Zhao ◽  
Lei Zhang ◽  
Zhenghua Li ◽  
Tao Zhang
Keyword(s):  
Network Topology ◽  
Heating System ◽  
Model Complexity ◽  
Thermal Coupling ◽  
Cyclic Heating ◽  
Scheduling System ◽  
Scheduling Model ◽  
Coupling System ◽  
Scheduling Method ◽  
Network Constraint

Heating network constraint is one of the important factors that affect the scale of electro-thermal coupling scheduling. This paper first establishes an electrothermal coupling scheduling model considering the multi-source ring heating network pipe structure and then proposes a method of simplifying a multi-source cyclic heating network topology approximation. Second, the electrothermal coupling scheduling system is coordinated and solved. Finally, Through the simulation example results, the annular heating network topological approximate equivalent can simplify the model complexity of the original heating network while also retaining the thermal dynamic characteristics of the initial multi-source ring heating network. This study will greatly improve the efficiency of solving the electrothermal coupling system.

Ultrastructural Localization of Acid Mucosubstance in Skeletal Muscle

1967 ◽  
Vol 25 ◽  
pp. 52-53 ◽  
Author(s):  
William J. Dougherty ◽  
Samuel S. Spicer
Keyword(s):  
Striated Muscle ◽  
Divalent Cations ◽  
Ultrastructural Localization ◽  
Major Elements ◽  
Frozen Sections ◽  
Thorium Dioxide ◽  
Iron Solution ◽  
Coupling System ◽  
Psoas Muscles ◽  
Formalin Fixed

In recent years, considerable attention has focused on the morphological nature of the excitation-contraction coupling system of striated muscle. Since the study of Porter and Palade, it has become evident that the sarcoplastic reticulum (SR) and transverse tubules constitute the major elements of this system. The problem still exists, however, of determining the mechamisms by which the signal to interdigitate is presented to the thick and thin myofilaments. This problem appears to center on the movement of Ca++ions between myofilaments and SR. Recently, Philpott and Goldstein reported acid mucosubstance associated with the SR of fish branchial muscle using the colloidal thorium dioxide technique, and suggested that this material may serve to bind or release divalent cations such as Ca++. In the present study, Hale's iron solution adapted to electron microscopy was applied to formalin-fixed myofibrils isolated from glycerol-extracted rabbit psoas muscles and to frozen sections of formalin-fixed rat psoas muscles.

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