Results 71 to 80 of about 36,185 (292)

Circumferential cracking of steam generator tubes [PDF]

, 1997
On April 28, 1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 95-03, {open_quote}Circumferential Cracking of Steam Generator Tubes.{close_quote} GL 95-03 was issued to obtain information needed to verify licensee compliance with existing regulatory requirements regarding the integrity of steam generator tubes in domestic ...
openaire   +2 more sources

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Calculation and Experimental Study on Purging Resistance of the Spiral Tube Heat Exchanger

Zhongguo dianli, 2020
For the spiral tube heat exchanger with smaller diameter and more complex structure, using the conventional method is not an effective way to clean the inside of the tubes. In this paper, regarding the difficulties in cleaning the steam generator of high-
Junfeng LIU, Xiaolong MA, Kang LI, Guangjian CHEN, Yingjie ZHU, Xiqiang MA   +5 more
doaj   +1 more source

A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios

Chemie Ingenieur Technik, EarlyView.
A short‐cut model framework that incorporates mechanical vapor recompression (MVR) requirements into reboiler design is presented, which is particularly beneficial during early process development with limited data or initial feasibility assessments.
Franziska Lais, Stephan Scholl, Katharina Jasch   +2 more
wiley   +1 more source

A Novel Model for U-Tube Steam Generators for Pressurized Water Reactors

Energies
A novel model was proposed for U-Tube Steam Generators in Pressurized Water Reactors to be utilized in dynamics and control studies. The steam generator was divided into 14 nodes and investigated by applying mass and energy conservation equations in ...
Huseyin Emre Sahin, Harun Kemal Ozturk
doaj   +1 more source

Simulation of water vapor condensation on LOX droplet surface using liquid nitrogen [PDF]

The formation of ice or water layers on liquid oxygen (LOX) droplets in the Space Shuttle Main Engine (SSME) environment was investigated. Formulation of such ice/water layers is indicated by phase-equilibrium considerations under conditions of high ...
Powell, Eugene A.
core   +1 more source

Development of a Mechanically Regenerating Desublimator for Freeze‐Drying Systems in the Food Industry

Chemie Ingenieur Technik, EarlyView.
Thermal defrosting limits desublimator efficiency in freeze‐drying. This review and case study compares thermal versus mechanical regeneration, links frost properties and external heat transfer to energy demand, and summarizes pilot‐scale scraping results enabling single‐unit, continuous lyophilization.
Moritz Krummenacher, Mirko Kleingries, Edgar Zimmer, Roman Blättler   +3 more
wiley   +1 more source

MRPC eddy current flaw classification in tubes using deep neural networks

Nuclear Engineering and Technology, 2019
Accurate and consistent characterization of defects in steam generator tubes (SGT) in nuclear power plants is one of the key issues in the field of nondestructive testing since the large number of signals to be analyzed in a time-limited in-service ...
Jinhyun Park, Seong-Jin Han, Nauman Munir, Yun-Taek Yeom, Sung-Jin Song, Hak-Joon Kim, Se-Gon Kwon   +6 more
doaj   +1 more source

Vertical steam generators tube bundles vibrations

MORSKIE INTELLEKTUAL`NYE TEHNOLOGII)</msg>, 2020
Представлена реализация расчетного метода для определения и анализа параметров вибрации трубных пучков парогенераторов (ПГ), обтекаемых поперечным турбулентным потоком жидкого теплоносителя. В связи с известными случаями выхода из строя энергетического оборудования вследствие истирания труб ПГ в дистанционирующих решетках, решение данной задачи весьма ...
openaire   +1 more source

Mechanical Vapor Recompression in Distillation: A Framework to Analyze Technical Feasibility, Economic Competitiveness, and Ecological Benefits

Chemie Ingenieur Technik, EarlyView.
Communication: An approach for a holistic evaluation of distillation processes with mechanical vapor recompression combining an initial energy potential analysis, shortcut methods for the compressor and reboiler design, and the determination of economic and ecological performance parameters is presented.
Katharina Jasch, Franziska Lais, Hannes Schneider, Mandy Paschetag, Stephan Scholl   +4 more
wiley   +1 more source