Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019).

In a water cooled air handler, which cools and heats the air supplied to a building, the cooling coil typicallyx000D
runs below the dew-point temperature of the incoming air in order to maximize sensible cooling capacity asx000D
well as to provide dehumidification. The condensate that forms on the fins of the cooling coil is typicallyx000D
collected in a drainage system and is removed using sloped piping or a condensate pump. Since the temperaturex000D
of the condensate is close to the temperature of the coil fins, this scenario represents an untapped opportunityx000D
for additional cooling. This is typical for heat exchanger units manufactured by Price industries Ltd, a Heating,x000D
Ventilation and Air-Conditioning (HVAC) company headquartered in Winnipeg, Manitoba. The objective ofx000D
the company is to reuse the cold condensate in spray/evaporative cooling application to pre-cool the warm airx000D
before it reaches the cooling coil for additional cooling.x000D
It is expected that this approach would increase the cooling efficiency of the air handling unit. However, thex000D
implementation of this concept requires a comprehensive optimization study with respect to the pertinentx000D
variables of the spray flow (e.g., airflow velocity, water flow rate, droplets formation (spray) and distribution,x000D
etc) in order to maximize the amount of pre-cooling that can be achieved with the condensate. Quantifying thex000D
effect of this evaporative pre-cooling on the latent capacity of the cooling coil would be another beneficialx000D
component of this study/project.x000D
The objective of the proposed research is to develop an efficient spray cooling strategy to maximize liquid/airx000D
heat transfer of HVAC precooling systems. The resulting improvement in the efficiency of these units will helpx000D
increase and strengthen the market share of Price Industries Ltd and consequently the Canadian HVACx000D
industry.