COMPUTATIONAL MODELING AND ENERGY EVALUATION OF A REAL COOLING SYSTEM OF A REFRIGERATION CHAMBER.

Author(s):  
Leonardo Lobo ◽  
LUIZ ALBERTO SANTOS LEITE ◽  
MANOEL ANTONIO FONSECA COSTA ◽  
Gustavo Rabello dos Anjos
2012 ◽  
Author(s):  
Mario R Mondaca ◽  
Fernando Rojano ◽  
Christopher Y Choi

Author(s):  
Julio Valle Hernandez ◽  
Raul Roman Aguilar ◽  
Gilberto Perez Lechuga ◽  
Berenice Diaz Monroy ◽  
Britania Lozano Olmedo

2014 ◽  
Vol 34 (2) ◽  
pp. 416-421 ◽  
Author(s):  
Cíntia Carla Melgaço de Oliveira ◽  
Mirko Chavez Gutierrez ◽  
Vivaldo Silveira Junior

Author(s):  
P.R. Swann ◽  
A.E. Lloyd

Figure 1 shows the design of a specimen stage used for the in situ observation of phase transformations in the temperature range between ambient and −160°C. The design has the following features a high degree of specimen stability during tilting linear tilt actuation about two orthogonal axes for accurate control of tilt angle read-out high angle tilt range for stereo work and habit plane determination simple, robust construction temperature control of better than ±0.5°C minimum thermal drift and transmission of vibration from the cooling system.


Author(s):  
John G. Sheehan

The goal is to examine with high resolution cryo-SEM aqueous particulate suspensions used in coatings for printable paper. A metal-coating chamber for cryo-preparation of such suspensions was described previously. Here, a new conduction-cooling system for the stage and cold-trap in an SEM specimen chamber is described. Its advantages and disadvantages are compared to a convection-cooling system made by Hexland (model CT1000A) and its mechanical stability is demonstrated by examining a sample of styrene-butadiene latex.In recent high resolution cryo-SEM, some stages are cooled by conduction, others by convection. In the latter, heat is convected from the specimen stage by cold nitrogen gas from a liquid-nitrogen cooled evaporative heat exchanger. The advantage is the fast cooling: the Hexland CT1000A cools the stage from ambient temperature to 88 K in about 20 min. However it consumes huge amounts of liquid-nitrogen and nitrogen gas: about 1 ℓ/h of liquid-nitrogen and 400 gm/h of nitrogen gas. Its liquid-nitrogen vessel must be re-filled at least every 40 min.


Author(s):  
Simon Farrell ◽  
Stephan Lewandowsky

2000 ◽  
Vol 10 (PR11) ◽  
pp. Pr11-131-Pr11-141 ◽  
Author(s):  
J.-Y. Choi ◽  
B.-J. Lee ◽  
I.-S. Jeung

1984 ◽  
Vol 45 (C1) ◽  
pp. C1-729-C1-732 ◽  
Author(s):  
L. Intichar ◽  
C. Schnapper

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