Author: Shahzuma Warakhwala

Rise above

Posted by Shahzuma Warakhwala | Dec 22, 2022 | AIRAH, Cover feature, Cover story, Features

Some building owners are happy if their edifice performs adequately. For those making decisions...

Questioning convention

Posted by Shahzuma Warakhwala | Dec 21, 2022 | AIRAH, Features

There is a growing chorus that now, perhaps more than ever, institutionalised professions need to...

Feasibility study of wastewater energy transfer for an existing campus building cluster

Posted by Shahzuma Warakhwala | Nov 28, 2022 | Technical Paper, Technical Paper Feature

The HVAC-related energy usage of a group of three existing buildings on a Canadian university campus (the “Cluster”) was simulated. Two scenarios were compared: (1) an ambient loop paired with conventional HVAC equipment (boiler plant and cooling tower), and (2) an ambient loop using wastewater energy transfer (“WET”). The study aimed to assess the feasibility of implementing WET as a heating and cooling method for cold-climate institutional buildings, as well as to measure the effects of WET implementation on energy usage, greenhouse gas emissions, and energy costs

Unprecedented precipitation, insufficient adaptation

Posted by Shahzuma Warakhwala | Nov 23, 2022 | Industry eye

As parts of the world experienced record downpours, the Arctic ice continued its seemingly...

Sharing the load

Posted by Shahzuma Warakhwala | Nov 22, 2022 | AIRAH, Features

District heating and cooling could offer an important pathway to decarbonisation – and one of the...

Donga danger

Jul 5, 2024

Much has been made of the poor ventilation in Australian classrooms, but the situation is even more dire for thousands of mining, construction and agriculture workers. Mark Vender investigates.