Case Study – Effect of Louvers or diffusers on air flow distribution and cooling time on a meat log during Chill cycle
By Kushal Aurangabadkar An experimental analysis was conducted on a cooler space measuring 3.66 m × 6.096 m (12.0 ft × 20.0 ft), equipped with an ammonia refrigeration coil, five 30 cm (12 in.) fans, and five diffusers. The study measured airflow patterns, cooling rates, and heat transfer efficiency in meat storage by testing two configurations:
Total Cost of Ownership (TCO) for Modular Refrigeration Systems in Life Sciences Distribution Centers
by Ramez Naguib, P.E. Introduction Life sciences distribution centers are under immense pressure to deliver consistent temperature control, comply with increasingly stringent regulations, and optimize operational efficiency. Traditional built-up refrigeration systems often prove cumbersome, costly, and slow to implement. In contrast, modular, factory-assembled refrigeration systems have emerged as a compelling alternative. Drawing on lessons from
Mitigating Liquid Trapping Risks in Ammonia Recirculation Pump Systems
By Kushal Aurangabadkar In industrial ammonia refrigeration systems, pumps play a vital role in circulating liquid ammonia to maintain cooling efficiency across evaporators and heat exchangers. The choice of pump type directly impacts system reliability, safety, and maintenance requirements. Among the most common options are conventional (mechanical seal) pumps and sealed (hermetic) pumps. Understanding their differences
CO2 Gains Ground in Industrial Refrigeration Applications
By: Ilana Koegelenberg Industrial refrigeration is experiencing its biggest disruption in decades as carbon dioxide (CO2 / R744) systems surge past traditional boundaries, challenging ammonia's long-standing market dominance while regulatory pressure mounts against fluorinated alternatives. What's driving this shift, and what's holding it back? Industrial Adoption Accelerates The industrial adoption of transcritical CO2
On two wires into the future: how Single Pair Ethernet is transforming refrigeration and air conditioning technology
In the digitalisation of industrial processes, growing demands for energy efficiency, cybersecurity, and controllability are confronted with legacy technologies such as serial interfaces, proprietary bus systems, or installations that are difficult to scale. With Single Pair Ethernet (SPE), a new technology is emerging that addresses these challenges. But what exactly is SPE? What specific advantages
First 90 Days in Ammonia Refrigeration Systems: A Technical Guidebook
By Kushal Aurangabadkar Introduction Ammonia refrigeration systems play a critical role in industries such as food processing, cold storage, and HVAC. For new operators and technicians, the first 90 days are crucial for understanding the fundamentals, ensuring safety, and building proficiency. This technical guide provides a structured pathway to help one succeed in the new
Magnetic Refrigeration: A Revolutionary, Disruptive Cooling Technology
As the global demand for energy-efficient and environmentally friendly cooling solutions intensifies, magnetic refrigeration emerges as a groundbreaking technology poised to transform the refrigeration industry. Leveraging the magnetocaloric effect, this innovative approach promises significant advantages over traditional cooling methods. Recent advancements are bringing magnetic refrigeration closer to commercial reality, signaling a new era in cooling
Review of the “Refrigeration and Air Conditioning” Skill Competition at WorldSkills
The WorldSkills Occupational Standards (WSOS) serve as a global benchmark for vocational education and training, outlining the competencies required to excel in various skilled professions. The Refrigeration and Air Conditioning WSOS specifically delineate the skills, knowledge, and attitudes necessary for professionals in this critical industry. As climate change intensifies and global energy demands increase, the
Broken Trust – Energy Efficiency and the Refrigeration Industry
The white paper titled "Broken Trust – Energy Efficiency and the Refrigeration Industry", recently published by Eurovent Certita Certification, offers a critical analysis of product performance discrepancies within the European refrigeration sector. It emphasizes the significance of reliable performance data for refrigeration products and highlights how underperformance, particularly of CO2 refrigeration systems, undermines energy efficiency and
Refrigerant Overview in the RACHP Industry
The HVACR industry is undergoing a transformative shift as environmental regulations, such as the Montreal Protocol and Kigali Amendment, drive the phase-down of high-GWP refrigerants like HFCs in favor of more sustainable alternatives. This report explores the critical role refrigerants play in cooling systems and examines the transition to low-GWP solutions such as HFOs, CO₂,
Unlocking the Potential of Propane (R290) in Refrigeration Technology
As the global push for environmental sustainability intensifies, the refrigeration industry is actively exploring alternative refrigerants that provide both performance efficiency and reduced environmental impact. Propane (R290), recognized as a natural refrigerant, has emerged as a leading candidate in the quest for eco-friendly refrigeration solutions, favored for its high efficiency, low environmental impact, and broad
Understanding Ammonia Refrigeration Systems: Key Benefits and Applications
The refrigeration industry has seen significant shifts in refrigerant choices over the decades, from natural substances to synthetic options and back again. Amidst growing environmental concerns and stringent regulations, ammonia (NH3) has re-emerged as a prominent player in the refrigeration landscape. This article provides an extensive exploration of ammonia as a refrigerant, detailing its functionality,