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Understanding variable flow systems. 3.
Understanding variable flow systems. 1.
Sistemas geotérmicos de caudal de refrigerante variable.
Ground VRV (Variable-Refrigerant-Volume) systems.
Performance of variable refrigerant flow (VRF) systems.
IIR document
Development of a virtual variable-speed compressor power sensor for variable refrigerant flow air conditioning system.
Understanding variable flow systems. 2.
Nueva generación de sistemas de caudal de refrigerante variable. Menores consumos: temperatura de refrigerante variable.
A new generation of VRV (Variable-Refrigerant-Volume) systems. Decline in consumption: variable refrigeration temperature.
World air conditioner and VRF markets.
Distributed extremum seeking control for a variable refrigerant flow system.
Simulation and experimental validation of the variable refrigerant flows system under the cooling conditions.
Energy saving operation of VAV air conditioning system.
[In Chinese. / En chinois.]
Research of variable volume and gas injection DC inverter air conditioner compressor.
Simplified chiller sequencing for a primary/secondary variable chilled water flow system.
Automatic mode switching for a multi-functional variable refrigerant flow system.
Refrigeration sector monitoring
19 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...
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 %.
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.
Heat pump sales in France
2013 Air-air Heat pumps (HPs) sales show significant increase
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.
Reducing the economic costs of a direct-use geothermal heating system
Italian researchers have modelled a polymer heat exchanger to reduce the cost of a direct-use geothermal heating system for a single building in the active volcano district of the...
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...
