An analysis of the drying process in forest fuel material

2015 ◽  
Author(s):  
G.M. Byram ◽  
R.M. Nelson
2020 ◽  
pp. 335-340
Author(s):  
Geniy V. Kuznetsov ◽  
Ivan S. Voitkov ◽  
Roman S. Volkov ◽  
Yuliana K. Atroshenko ◽  
Pavel A. Strizhak

2017 ◽  
Vol 24 (0) ◽  
Author(s):  
Aires Afonso Mbanze ◽  
Sylvio Péllico Netto ◽  
Allan Libanio Pelissari ◽  
Anabela Couto Fernandes ◽  
Alexandre França Tetto

2014 ◽  
Vol 692 ◽  
pp. 267-271 ◽  
Author(s):  
Alena O. Zhdanova ◽  
Genii V. Kuznetsov ◽  
Pavel A. Strizhak

Three typical solution schemes of adjoint problems of heat transfer, phase transformations and chemical reaction at the forest fuel material surface were analyzed in this work. Characteristic times of thermal decomposition reaction suppression of forest fuel materials (needles of pine and fir-tree, leaves of birch) were presented for concerned heat transfer models. Effective heat exchange conditions which are characterized by minimal times of chemical reaction suppression in forest fuel materials and minimal extinguishing agent's expenditure were established.


Author(s):  
Allan B. Christensen ◽  
Kraig M. Wendt

Abstract Spent nuclear fuels and fuel debris stored underwater must eventually be prepared for dry storage (e.g., repository disposition). This preparation involves some degree of fuel drying. Primary considerations for a fuel drying process are the containment configuration of the spent fuel material and the type of fuel material (e.g., oxide, metal, hydride, alloy, carbide, epoxied, debris). The Idaho National Engineering and Environmental Laboratory has built and operated three heated vacuum drying systems and placed into interim dry storage all of these fuel types. The drying systems and process have been tested and modeled so that the extent of dryness can be predicted and used to plan and perform drying operations. This paper presents this drying method.


Author(s):  
Alan S. Rudolph ◽  
Ronald R. Price

We have employed cryoelectron microscopy to visualize events that occur during the freeze-drying of artificial membranes by employing real time video capture techniques. Artificial membranes or liposomes which are spherical structures within internal aqueous space are stabilized by water which provides the driving force for spontaneous self-assembly of these structures. Previous assays of damage to these structures which are induced by freeze drying reveal that the two principal deleterious events that occur are 1) fusion of liposomes and 2) leakage of contents trapped within the liposome [1]. In the past the only way to access these events was to examine the liposomes following the dehydration event. This technique allows the event to be monitored in real time as the liposomes destabilize and as water is sublimed at cryo temperatures in the vacuum of the microscope. The method by which liposomes are compromised by freeze-drying are largely unknown. This technique has shown that cryo-protectants such as glycerol and carbohydrates are able to maintain liposomal structure throughout the drying process.


Liquidity ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Siti Maryama

The purpose of the study are to (1) review the main problems faced by the factory of Kepuruk Manunggal Karsa (MK), and (2) assessing the entrepreneur attempts to be able to solve the problems faced. The research was carried out using qualitative descriptive design. The results showed that (1) the lack of supply of raw materials as a result of lack of capital. Sequel is due, the difficulty of the plant to meet consumer demand (excess demand). (2), the system of capital used is circulating capital (capital turnover). Earned income used up to finance the operation of the plant. (3) Innovation has been done in the form of deal with bad weather (rain) as an effort of crackers drying process is by using the oven. (4) There has been no cooperation with financial institutions. (5) There is no organizational structure as a modern factory for traditionally managed by family management. (6) Marketing using modes of transportation carts and motor vehicles.


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