STUDIES ON PIPING NETWORK IN DISTRICT COOLING AND HEATING (II) : Short range fluctuating load and piping design

Application of Genetic Algorithm with Local Search in Optimal Piping Network Design of a District Cooling System

District cooling system (DCS) is a mass-scale production of chilled water generated at a central and remote chiller plant. Through an underground piping network, the chilled water is delivered to serve a group of consumer buildings in a district area. DCS can offer both economical and environmental benefits. Because of the substantial capital investment and running energy involved, an optimal d...

PIPing on lysosome tubes.

The role of lysosomes in important cellular responses, including phagocytosis, cell surface repair, and autophagy underlies a number of human diseases. Furthermore, the role of the lysosomal surface in TORC1 signalling has revealed unexpected properties of these organelles. In this issue, Sridhar et al (2013) uncover an important role for PI(4)P for lysosome function under normal nutrient condi...

Piping hot

case that brought down South Korean stem cell researcher Hwang Woo Suk early this year”. The Los Angeles Times editorial page bemoaned that, “Science took an unnecessary leap forward Wednesday,” by attempting to find a technological fix to address political and religious objections to stem-cell research. “It’s an impressive advance, but scientists — and society — would be better off if they cou...

Thermal Stresses in Vessels, Piping, and Components

On District Heating and Cooling Research in China

The growth of the Chinese district heating sector has been very rapid during recent years. No other country in the world can show the same rapid growth of district heating systems during the last decades. Heated building area increased six times between 1995 and 2008 according to the Chinese district heating statistics. China has also enjoyed strong growth of scientific articles and papers publ...