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Sensitivity Studies Of A Low Temperature Low Approach Direct Cooling Tower For Building Radiant Cooling Systems, Medhi Nasrabadi, Donal Finn, Ben Costelloe Jul 2012

Sensitivity Studies Of A Low Temperature Low Approach Direct Cooling Tower For Building Radiant Cooling Systems, Medhi Nasrabadi, Donal Finn, Ben Costelloe

Conference Papers

Recent interest in cooling towers as a mechanism for producing chilled water, together with the evolution of radiant cooling, have prompted a review of evaporative cooling in temperate maritime climates. The thermal efficiency of such systems is a key parameter, as a measure of the degree to which the system has succeeded in exploiting the cooling potential of the ambient air. The feasibility of this concept depends largely however, on achieving low approach water temperatures within an appropriate cooling tower, at acceptable levels of energy performance. Previous experimental work for a full scale evaporative cooling system has shown that it …


Avoiding The Mistakes Of The Past, Tom Dunne Jan 2012

Avoiding The Mistakes Of The Past, Tom Dunne

Articles

Tom Dunne explores the long term drivers of dysfunction in Ireland's housing markets and what a more sustainable housing system would look like.


Mathematical Modelling Of A Low Approach Evaporative Cooling Process For Space Cooling In Buildings, Medhi Nasrabadi, Donal Finn, Ben Costelloe Jan 2012

Mathematical Modelling Of A Low Approach Evaporative Cooling Process For Space Cooling In Buildings, Medhi Nasrabadi, Donal Finn, Ben Costelloe

Conference Papers

This paper describes a mathematical model of a low approach open evaporative cooling tower for the production of high temperature indirect cooling water (14-16°C) for use in building radiant cooling and displacement ventilation systems. There are several potential approaches to model evaporative cooling, including: the Poppe method, the Merkel method and the effectiveness-NTU (ε-NTU) method. A common assumption, applied to the Merkel and ε-NTU methods, is that the effect of change in tower water mass flow rate due to evaporation is ignored, which results in a simpler model with reduced computational requirements, but with somewhat decreasedaccuracy. In this paper, a …


Slimplexity: A Glimpse Inside The Hive Mind Of Snohetta, Noel Brady Jan 2012

Slimplexity: A Glimpse Inside The Hive Mind Of Snohetta, Noel Brady

Articles

Simplexity is an interview with Craig Dykers cofounder of Snohetta. The firm has a unique structure in Architecture circles with a Hive Mind like structure. In addition its parallel interests in Architecture and Landscape Design has meant that both professional strands have equal parity in the firms operation.