Energy analyses of a house heated by radiators low temperature connected with solar storage tank

Author(s):  
I. Zeghib ◽  
A. Chaker ◽  
D. Belkharchouche
Keyword(s):  
2013 ◽  
Vol 680 ◽  
pp. 109-112
Author(s):  
Min Li ◽  
Yu Jun Ma

This paper uses fuzzy pairwise comparison method to determine the weight values of assessment indexes of low temperature material of storage tank, which is proposed based on Chinese traditional complementary thought pattern by Chen Shouyu. For the little difference between the results of study by this method mentioned in this paper and analytical hierarchy process, the main reason in essence is given finally.


Author(s):  
Qunjie Lu ◽  
Gai Huang ◽  
Yingzhe Wu ◽  
Huiming Ding ◽  
Jinyang Zheng

Pressure Strengthening (PS) is a technology widely used to increase the allowable stress and thus reduce the weight of Austenitic Stainless Steel (ASS) cryogenic vessels. Pre-strain and low temperature are two important factors enhancing the strength. However, standards such as EN 13458-2, ASME VIII-I, AS 1210 and ISO 21009-1, state that the strengthening is based on work hardening of ASS, while the effect of low temperature was ignored or not mentioned. Therefore, in this work, the influence of low temperature on cryogenic mechanical properties of S30408 stainless steel and its welded joints were studied firstly, then a numerical analysis on the influence of pressure strengthening of a large transportable cryogenic storage tank was conducted. Finally, after the technical significance of PS was discussed, a new understanding was proposed. Conclusions come that: (a) At room temperature, the strength of ASS can be increased by pre-strain; while at −196 °C, the strengthening of low temperature plays a leading role (2/3 or more) for strength increment; (b) The purpose of PS technique is to stabilize the dimensions of the internal vessel. It is unnecessary to consider insufficient strengthening or over strengthening at different location because the strength enhancement is mainly due to low temperatures.


2011 ◽  
Vol 295-297 ◽  
pp. 1890-1895
Author(s):  
Wei Gu ◽  
Guo Ping Wang ◽  
Xiao Ping Wang

Take series of impact tests on welded joints for steel 09MnNiDR of LPG tank manufacture. And take scanning electron microscopy on impact fracture specimens. The results for the LPG storage tanks at low temperature welding process of steel making and the structure of low temperature storage tank to provide data to support safety analysis.


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