Powerful compressors drive cooling research

GEA Grasso screw compressors for the compression of helium gas are playing a crucial role in one of the world’s largest construction projects for cutting-edge international research. The compressors are part of the FAIR (Facility for Antiproton and Ion Research) particle accelerator facility for cooling superconducting magnets. The order placed…

Responsible Refrigeration No 80

The introduction of an online Certificate of Conformance (CoC) for both Android and iOS platforms has resulted in the paper CoC in book form being stopped. The CoC books are no longer available. A CoC can only be issued via the online format. The online app can be downloaded from…

Building HVAC and PV-powered thermoelectric cooling

Scientists have proposed a way to combine thermoelectric modules (TEMs) with rooftop PV to support HVAC function in buildings. They designed a wall-integrated TEM to heat and cool adjacent rooms. An Australian-Indian research group has looked at how thermoelectric modules (TEMs) and PV could be combined to provide heating, ventilation and air…

A Breath of Fresh Air—Necessity, Not Luxury

Picture yourself in a building with minimal windows, vents, doors, and other openings. There is no movement at all in the stale and dense air. Feeling uncomfortable yet? While some may say you could endure this environment at home, work or in public spaces, this is not simply a bit…

Debate on air conditioning as a basic right

Is access to cool air a human right in today’s environments? Canada is debating the question, and climate activists aren’t the only ones pressing the issue. A coalition representing private and public sector interests – including insurance companies, the Canadian Chamber of Commerce, the Federation of Canadian Municipalities and the…

Greener air conditioning for a warmer world

When the heat of summer hits, air conditioners turn on and energy demand skyrockets, straining the grid. In a warmer world, more efficient cooling options will play an important role in curbing the increase of cooling-related energy demands. This will be particularly true for the nearly 80 percent of the…

Indoor CO2 tool can help assess ventilation and indoor air quality

A key ingredient for good indoor air quality is good ventilation. One simple method that can be used to determine if a space is well ventilated is to measure indoor carbon dioxide (CO2) levels. This greenhouse gas drifts through more than just our skies. CO2 can be found in the buildings…

Getting labour components right is critical to success of the REIPPPP

The South African Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) offers a sustainable solution to the country’s current power problem. However, it has already faced delays, with an extension of financial closure for the successful bidders from Bid Window 5 until the end of March 2022. The process of…

Global fresh food: big opportunities, big challenges

That’s the easiest way to describe the food sector in 2022. On the plus side, the demand has never been higher: 80% of respondents to Deloitte’s fresh food consumer survey said that high-quality fruits and vegetables are one of the most important attributes they look for when choosing a store….

CESA challenges decision to cancel tenders

Consulting Engineers South Africa (CESA) is challenging the recent decision by the SANRAL Board to cancel critical infrastructure tenders on the basis that “their adjudication process was flawed due to the involvement of design engineers in the tender adjudication process”. Chris Campbell, CEO of CESA. Image credit: CESA Chris Campbell,…