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Rethinking power, control and infrastructure resilience in Africa

By Nhlanhla Zondo, sales director, Power Process Systems (PPS)

Introduction by RACA Journal: Across Africa’s HVAC sector, reliability is rarely compromised by poor engineering theory – but too often by the realities surrounding installed systems. From vandalised electrical kiosks and ageing control panels to unreliable grid supply and harsh environmental conditions, HVAC professionals are increasingly required to extract dependable performance from infrastructure never designed for ideal conditions. This article explores why refurbishment, physical hardening and locally grounded engineering have become essential strategies for keeping HVAC systems operational, safe and efficient in challenging African environments.

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Sandro Biccari, director of Marine & Refrigeration Engineering (MRE). Linkedin

Misleading energy claims in comparison between ammonia and CO2 refrigeration systems

By Sandro Biccari of Marine & Refrigeration Engineering (MRE)

There has been a recent surge in misleading statements that carbon dioxide (CO2) is more efficient than ammonia (NH3) and Freon plants.The ‘marketing’ of transcritical CO2 refrigeration is portraying this as the ‘best thing since sliced bread’.

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