Technical feasibility of integrating a modified power conversion unit into a non‐nuclear microreactor testbed

2021 ◽  
Author(s):  
Donna Post Guillen ◽  
Daniel S. Wendt
Keyword(s):  
Power Conversion ◽  
Technical Feasibility ◽  
Conversion Unit

scholarly journals Rain sensor capsule (RSC) for farmers during un-seasonal rains in post-harvesting period

2019 ◽  
Author(s):  
Singuru Rajesh
Keyword(s):  
Software Package ◽  
Power Conversion ◽  
Grain Production ◽  
Innovative Design ◽  
Conversion Unit ◽  
Post Harvesting ◽  
New System

Farmers are backbone of India and they suffer many hurdles while growing crops. In post-harvesting steps, drying crops plays a major role in grain production. About 70% of the threshed grains are sun-dried in many regions. During sudden rains farmers face difficulty to cover the threshed grains and some of them die because of thunderstorm/lighting with this older methods. It necessitates to design a new system for these conditions instead of older methods. The aim of the project is to provide an innovative design for helping farmers from unseasonal rains easily. The newly modelled Rain Sensor Capsule for farmers, whose operation is compiled by the automatic rain sensor, wooden capsule, controllers and power conversion unit. The capsule is modelled in AutoCAD software package, then a prototype is fabricated and tested.

A very thin power conversion unit for equalizing currents through paralleled power modules

2015 ◽  
Author(s):  
Yukio Hattori ◽  
Hiroshi Kamizuma ◽  
Akira Mima ◽  
Daisuke Matsumoto ◽  
Tetsuya Kawashima ◽  
...  
Keyword(s):  
Power Conversion ◽  
Power Modules ◽  
Conversion Unit

Operation and Control of the PBMR Demonstration Power Plant

2006 ◽  
Author(s):  
Petrus D. Kemp ◽  
Chris Nieuwoudt
Keyword(s):  
Power Plant ◽  
Transient Analysis ◽  
Power Plants ◽  
Closed Loop ◽  
Control Strategies ◽  
Power Conversion ◽  
Conversion Unit ◽  
Demonstration Plant ◽  
And Control ◽  
Direct Cycle

A large interest in High Temperature Gas-cooled Reactors (HTGR) has been shown in recent years. HTGR power plants show a number of advantages over existing technology including improved safety, modular design and high temperatures for process heat applications. HTGR plants with closed loop direct cycle power conversion units have unique transient responses which is different from existing nuclear plants as well as conventional non-nuclear power plants. The operation and control for a HTGR power plant therefore poses new and different challenges. This paper describes the modes of operation for the Pebble Bed Modular Reactor (PBMR) demonstration plant. The PBMR demonstration plant is an advanced helium-cooled, graphite-moderated HTGR consisting of a closed loop direct cycle power conversion unit. The use of transient analysis simulation makes it possible to develop effective control strategies and design controllers for use in the power conversion unit as well as the reactor. In addition to plant controllers the operator tasks and operational technical specifications can be developed and evaluated making use of transient analysis simulation of the plant together with the control system. The main challenges in the operation and control of the reactor and power conversion unit are highlighted with simulation results. Control strategies in different operating regions are shown and results for the power conversion unit start-up transition and the loss of the grid connection during power operation are presented.

scholarly journals Transient analysis and control of a heat to power conversion unit based on a simple regenerative supercritical CO2 Joule-Brayton cycle

2021 ◽  
Vol 183 ◽  
pp. 116214
Author(s):  
Matteo Marchionni ◽  
Giuseppe Bianchi ◽  
Savvas A. Tassou
Keyword(s):  
Supercritical Co2 ◽  
Transient Analysis ◽  
Power Conversion ◽  
Brayton Cycle ◽  
Conversion Unit ◽  
And Control

Evaluation of alternate power conversion unit designs for the GT-MHR

2008 ◽  
Vol 238 (11) ◽  
pp. 2995-3001 ◽  
Author(s):  
C.B. Baxi ◽  
A. Shenoy ◽  
V.I. Kostin ◽  
N.G. Kodochigov ◽  
A.V. Vasyaev ◽  
...  
Keyword(s):  
Power Conversion ◽  
Conversion Unit

Experimental Investigation of a Single Stage Helium Axial Compressor of HTGR-10 Power Conversion Unit

2008 ◽  
Author(s):  
Rongkai Zhu ◽  
Qun Zheng ◽  
Jiguo Zou ◽  
Rakesh Bhargava
Keyword(s):  
Experimental Investigation ◽  
Power Conversion ◽  
Axial Compressor ◽  
Operating Conditions ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Flow Conditions ◽  
Air Compressor ◽  
Conversion Unit ◽  
Compressor Performance

This paper focuses on an experimental investigation of a helium compressor, a major component of the Power Conversion Unit (PCU), used in a High Temperature Gas Cooled Reactor (HTGR). The PCU system uses a direct Helium Brayton cycle for the power conversion. In this configuration, there is a strong coupling between the helium compressor and the other components of the PCU system. The estimations of compressor performance in stable and transient operational states are of high importance for the designer. Because of the difficulties in testing a compressor with helium as a working fluid, simulations methods using air to replace helium as a compressor working fluid in the experiments are researched. An experimental compressor system is built to investigate the performance of a helium compressor. Under different operating conditions, the compressor performance characteristics are obtained and compared with that of an air compressor. The possibility and the effective approach of designing a helium compressor based on the experimental data of an air compressor are studied. The experimental results showed that air under the correct flow conditions, identified using similitude analysis, can be used to test a helium compressor instead of far more expensive helium.

Rotor scale model tests for power conversion unit of GT-MHR

2012 ◽  
Vol 251 ◽  
pp. 344-348 ◽  
Author(s):  
C.B. Baxi ◽  
A. Telengator ◽  
J. Razvi
Keyword(s):  
Power Conversion ◽  
Model Tests ◽  
Scale Model ◽  
Conversion Unit
Sign in / Sign up

Export Citation Format

Share Document