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IIR document
Development of a virtual variable-speed compressor power sensor for variable refrigerant flow air conditioning system.
World air conditioner and VRF markets.
Development of dynamic model of variable refrigerant flow cooling system based on moving boundary method.
Distributed extremum seeking control for a variable refrigerant flow system.
Research of variable volume and gas injection DC inverter air conditioner compressor.
Automatic mode switching for a multi-functional variable refrigerant flow system.
Conversion factors for comparing the performance of variable refrigerant flow systems.
Extremum-seeking control optimizes VRF energy consumption.
Model-free control and automatic staging of variable refrigerant flow system with multiple outdoor units.
A parameter-estimation model for variable refrigerant flow heat pump systems.
Simulation of a VRF system applied in electric buses in Taiwan.
A review of variable refrigerant flow HVAC system components for residential application.
Cooperative control strategy of variable evaporation temperature and variable superheat degree for a VRF system to improve temperature stability in multiple rooms.
Economic model predictive control for variable refrigerant flow heat recovery systems.
Performance analysis of multi-split variable refrigerant flow (VRF) system with vapor-injection in cold season.
Refrigeration sector monitoring
21 results
Variable refrigerant flow systems world market
The market for variable refrigerant flow systems grew by 5.7% in 2018.
Variable refrigerant flow systems (VRF) market in India
Demand for VRF systems in India is estimated at 24,000 units in 2013.
Variable refrigerant flow systems (VRF) market in Europe
European VRF market scale was less than 117,000 units in 2013, almost the same level as 2012.
The global VRF (variable flow refrigerant) systems market
The global VRF (variable flow refrigerant) systems market estimated to grow at a Compound Annual Growth Rate (CAGR) of 11.4% between 2016 and 2022.
Virtual sensor for variable refrigerant flow AC system.
A summary referring to an article recently published in the International Journal of Refrigeration (IJR).
New Hybrid VRF system
The new Hybrid VRF(Variable Refrigerant Flow), launched by Mitsubishi Electric, is said to combine the advantages of chiller technology with the flexibility and efficiency of traditional VRF systems.
World's smallest electronic expansion valve
Danfoss recently presented a small electronic expansion valve, especially used for air conditioners with variable refrigerant flow.
Heat pump sales grew in Europe in 2020
According to the latest market report by European Heat Pump Association (EHPA), heat pump sales grew by +7.4% in 2020, offering benefits both in terms of greenhouse gas emission...
Brazilian government outlines measures to reduce electricity consumption
Owing to severe droughts affecting hydropower generation, the Brazilian government is imposing measures to reduce electricity consumption in public buildings, including limiting the...
Update on HFC Regulations in the United States
The latest regulatory implementations by the EPA under the AIM Act for the HFC phasedown.
Air-conditioning and heat-pump market figures in France; January-April 2014.
From January to April 2014, air-to-air heat pumps showed signs of very slight growth (2 to 4 %) whereas air-to-water heat pump sales grew by 23 %.
Heat pump sales in France
2013 Air-air Heat pumps (HPs) sales show significant increase
Applications of artificial intelligence to refrigeration plants
A paper from the IIR TPTPR conference presents the energy performance and maintenance benefits of 19 refrigeration plants using artificial intelligence techniques.
Nanoe ™ X technology could inhibit COVID19 in air conditioners
Panasonic has developed an ionizer that inhibits certain pathogenic microorganisms (including viruses). Recent tests seem to demonstrate its effectiveness on COVID-19.
Snapshot of air conditioning in the MENA region and Türkiye
The Cool Up programme monitors the status, developments, insights, and good practice examples regarding sustainable cooling in the MENA region.
IIR news
1 result
Now available: ICR2015 congress papers
Following on from the successful IIR International Congress of Refrigeration (ICR2015), the long anticipated papers and proceedings are now available to download in Fridoc.
Encyclopedia of Refrigeration
Additive manufacturing of heat exchangers
In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...
