News

The article analyzes CO₂ buildup inside car cabins when using air recirculation mode, which affects driver alertness and health. It recommends using CO₂ sensors and applying ASHRAE Standard 62-2001 to automatically control fresh air intake. Tests and simulations show that maintaining a minimum of 40% fresh air (Partial Recirculation Factor) keeps CO₂ levels below 1,100 […]

Chilled water cooling systems consume nearly 50% of building energy required to meet cooling loads, especially in hot, humid climates.1 Chiller COP can be improved with the optimal chilled water supply temperature, and significant amounts of system energy can be reduced. Similarly, chilled water distribution pumps designed with high temperature delta T will have less […]

This study validates a Temperature Controlled Airflow (TcAF) system that uses cooler air over sterile zones and warmer air at the periphery to reduce contamination. Tested in mock and real surgeries, TcAF maintained microbial levels below 10 CFU/m³, achieving ultraclean air standards and enhancing surgical infection control.

This study critically examines the role of heat pumps in decarbonization strategies, particularly in regions characterized by high CO2 emissions from electricity generation. It highlights the performance disparities between air-source heat pumps (ASHPs) and ground-source heat pumps (GSHPs) in cold climates, where the environmental benefits may be undermined due to higher emissions. The paper delves […]

This event marks a historic milestone for the HVAC&R community in Vietnam. After years of dedication and support since our planning began in 2019, the ASHRAE Vietnam Chapter is officially becoming a reality. Venue: Muong Thanh Luxury Hotel Address: 261C Nguyen Van Troi Street, Ward 10, Phu Nhuan District, Ho Chi Minh City Location: 2nd Floor […]

Venue: INDUSTRIAL UNIVERSITY OF HCM CITYAddress: No. 12 Nguyen Van Bao, Ward 4,Go Vap District, Ho Chi Minh City Location: 6th Floor -X Building Date: 13 Nov 2024 Time: 5:00pm – 7:00pm Download: More Information Ashrae Viet Nam monthly meeting and Technical Talk Sustainability has become an integral aspect of the luxury industry. Today’s consumers are more conscious than […]