- Mari Macnamara
- Refrigeration
- Hits: 42
How to test refrigerant charge without gauges
Bryan Orr, HVACShool.com founder, provides HVACR technicians with an in-depth description of smart, non-invasive test procedures. He shares his experience…
- Mari Macnamara
- Refrigeration
- Hits: 95
What are we doing about climate change?
During June 2019, the Western Cape Government Environmental Affairs and the Bavarian State Ministry of the Environment and Consumer Protection hosted a technical workshop in Stellenbosch on ‘Green Cooling Solutions’. By Andrew Perks.
- Glyniss Bone
- Refrigeration
- Hits: 42
Reciprocating vs screw compressors – how do you choose?
By Russell Hattingh, engineering manager at Johnson Controls Systems and Service, South Africa.
What would you choose for your HVAC&R applications: reciprocating or screw compressors?
The age-old debate continues.
- Mari Macnamara
- Refrigeration
- Hits: 79
Questioning ice and water theory
The unexpected observation of ice at low temperature and high pressure through an experiment designed to create a super-cold state of water, scientists used neutron scattering to discover a pathway to the unexpected formation of dense, crystalline phases of ice thought to exist beyond Earth’s limits.
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