[fre] Le prix des voitures d'occasion fait l'objet de cotations publiées régulièrement dans les journaux de l'automobile. Un recours à ces cotations a permis d'établir un indice du prix des voitures d'occasion, pour quatre modèles et suivant l'âge des voitures» Si l'on désire remonter...

Steady-state and transient equations are developed to describe the behaviours of different designs of finned-pipe heat exchangers when each alone is submerged in a 536-litre tank filled with water. The heat exchangers were required to cool a hot-water charged tank, initially at temperatures in...

A novel concept for the operation of a liquid desiccant domestic-dehumidifier has been proposed: the resulting developed system dehumidifies air by passing it directly over a liquid desiccant. The system is novel in two respects: first, a bubble pump is used to both reconcentrate the desiccant...

High-rise blocks of flats in the UK have been identified as a large potential market for the installation of combined heat-and-power (CHP) systems. Unlike leisure centres, hotels and hospitals, blocks of flats represent, as yet, a relatively new opportunity for CHP that has still to be exploited...

The thermal discharge from a hot-water store by means of an externally-finned, heat-exchanger coil, stretching throughout almost the whole depth of the water in the store, has been investigated. Cold water enters the lowest part of the heat-exchanger, is heated and conveyed away from the...

Two visions of aid effectiveness and allocation are compared. The first, corresponding to the new aid paradigm, argues that aid is only effective if domestic policies are appropriate. The second, in contrast, argues that aid effectiveness depends on the external and climatic environment: the...