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Small ventilation openings in large rooms constitute a numerical resolution difficulty in indoor air flow simulation. A local grid-refinement technique is introduced to add local grid points in the small-opening regions. The method requires a relatively small increase in computer storage. A...
Comparisons between energy consumptions of dwellings heated by different fuels are often hampered by the lack of published, practical data. This paper provides an analysis of electric space heating measurements from a project carried out by the Building Services Research and Information...
Air conditioning makes a significant contribution to UK carbon dioxide emissions. This paper investigates the impact that ice thermal storage might make on carbon dioxide emissions. Carbon dioxide emissions from English and Welsh generating plant are also analysed in detail.
This Note describes a rotary-absorption heat pump combined with a vapour recompression system. The absorption heat pump employs process intensification which exploits centrifugal fields. The heat pump has been analysed thermodynamically using H 2 O/LiBr and H 2 O/NaOH-KOH-C s OH combinations.
A simple analysis is presented which calculates the best location of differential pressure sensing and control for large variable-votume-flow secondary water systems. The condition addressed is when the pressure drop across the coils at full load is very small compared with the pressure drops...
A new feed-forward control concept for a Dx air cooling plant has been developed by mathematical modelling. This control system manipulates the compressor speed using the evaporator superheat signal and additionally adjusts the refrigeration duty by metering the required quantity of refrigerant...
During construction it is commonplace for conflicts to occur between building services systems and the finishing works. These have three main causes, design, co-ordination or procedural. This paper presents a co-ordination cube model for classifying design and co-ordination problems. The model...
Experimental U-values based on measured heat flows through the walls of some houses have been found to be significantly higher than predicted by conventional calculation procedures. The work was carried out in ordinary occupied houses, and included measurements on party, internal and external...
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