Quershi, Hamid, Amin,Maadhah
Miscellaneous # 1988 Bath
The degradation of plastic pipes in the domestic, industrial, and general purpose applications in Saudi Arabia are discussed. It is shown that the higher rate of failure of pipes exposed to natural weather results from elevated temperatures, and very high dose of total solar radiation received in the region. In addition improper manufacturing conditions, storage, and installation have also been cited as sources to contribute to rapid pipe failure rates.
Author(s) : Alireza Sahaf Amin, Dr. Gholamreza Pircheraghi
PE-Xa pipes used in the hot water supply are required for high mechanical strength and high creep resistance at high temperature. Because of the higher cross-link degree of PE-Xa pipes as compared with other crosslinked pipes methods , these pipes which are made by peroxide crosslinking have better performance in the...
Author(s) : Alireza Sahaf Amin, Ebrahim Parchami
In this paper we would like to show the capability of radiant floor heating being used with complete plastic pipe system for the large space area of a large mosque (the Isfahan Mosalla Project). Human comfort is a critical consideration when designing a mosque in Iran and the traditionally-used normal unit heater or...
Author(s) : Alireza Sahaf Amin, Dr.Reza Bagheri
A minerally reinforced polypropylene (PP-MD) ,Because of its high specific weight and its special molecular structure, is able to absorb airborne noise as well as structure borne noise created in soil & waste piping system. The Main mechanism of damping the sound in this piping structure is increasing the density of...