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news
A brand new R744.com in October

A brand new R744.com in October

27 July 2011
After 3 years and more than 1.1 million page views over the last 24 months, a brand new version of R744.com will go online in October. The new R744.com will still put a strong emphasis on news and products, but will a...
event

3rd Refrigeration and Air Conditioning Technology Week

Workshop | 27 Jul. 2011 - 30 Jul. 2011 | S, Brazil
On 27 - 30 July 2011 the Senai-SP will organise the 3rd Refrigeration and Air Conditioning Technology Week. The programme includes courses, lectures, and workshops are planned to demonstrate equipment, ...
event

Renewable Energy 2011 Exhibition

Trade Fair | 27 Jul. 2011 - 29 Jul. 2011 | Makuhari Messe, Japan
paper

An experimental evaluation of the transcritical CO2 ...

26 July 2011 | Report / Study | Published: 2008
The classical substances as hydrochlorofluorocarbons (HCFCs) used as working fluids in the vapour compression plants have to be replaced by new substances because of their ozone depletion potential and their greenhous...
paper

Experiment and simulation on the performance of an a...

22 July 2011 | Report / Study | Published: 2002
The main purpose of this study is to investigate the performance of an autocascade refrigeration system using zeo- tropic refrigerant mixtures of R744/134a and R744/290. One of the advantages of this system is the...
news
Exclusive interview with K. Visser, speaker at forthcomin...

Exclusive interview with K. Visser, speaker at forthcomin...

20 July 2011
Ahead of a refrigeration engineering conference dedicated to “Preparing for a low carbon future” organised by the Australian Institute of Refrigeration, Air conditioning and Heating (AIRAH) on 27 July, R74...
paper

Performance prediction of a R744 Transcritical cycle...

20 July 2011 | Report / Study | Published: 2010
From the viewpoint of global environmental protection and energy-saving, the research and development on high-efficiency heat pump systems using environment-friendly refrigerants have become one of the most important ...
news
SUNSTORE 4 - Innovative Danish district heating project i...

SUNSTORE 4 - Innovative Danish district heating project i...

15 July 2011
A large scale 100% renewable energy project is to provide the Danish city of Marstal with a large-scale district heating system developed with a grant from the EU’s Seventh Framework Programme (FP7). The innovat...
news
New Chinese CO<sub>2</sub> heat pump standard

New Chinese CO2 heat pump standard

14 July 2011
On 1 June 2011 a new Chinese CO2 heat pump standard was formally implemented. Standard GB/T26181-2010 is for hermetic motor-compressors for household and similar use heat pump water heaters using CO2 refrigerant, and ...
paper

Transcritical CO2 (R744) Supermarket Refrigeration i...

14 July 2011 | Article / Press | Published: 2009
Conventional supermarket refrigeration systems commonly use HCFC 22, an ozone depleting and very high Global Warming Potential (GWP) refrigerant gas. Replacement of these systems with cascade or transcritical CO2 ...
news
23rd IIR International Congress of Refrigeration with R74...

23rd IIR International Congress of Refrigeration with R74...

13 July 2011
Bringing together expertise from nearly all refrigeration fields, the 23rd International Institute of Refrigeration (IIR) International Congress of Refrigeration (ICR) will take place in Prague, Czech Republic 21-26 A...
paper

On the Energy Efficiency of Carbon Dioxide in Small ...

13 July 2011 | Report / Study | Published: 2010
A study to compare the refrigerants CO2 and R134a in small commercial systems has been performed by IZW. It was leading to the result that optimized CO2 systems can be operated with nearly the same energy consumption ...
product
TK3 oil level control unit

Sensors & Leak detectors | 12 July 2011

from TEKLAB

  • Optical level control unit to control the oil level in the compressor crankcase
  • Max working pressure: 60 bar
  • ...

    read more | send request

    news
    Teklab presents oil level control unit

    Teklab presents oil level control unit

    12 July 2011
    Known for its expertise in the manufacture of oil level controls in multi-compressor applications, Teklab is adding its TK3 optical level control suitable for CO2 systems to the R744.com product database. Designed for...
    news
    AIRAH Refrigeration Engineering Conference to present Aus...

    AIRAH Refrigeration Engineering Conference to present Aus...

    11 July 2011
    Registrations are still open for the 2011 Australian Institute of Refrigeration, Air conditioning and Heating (AIRAH) conference on Refrigeration Engineering, dedicated to “Preparing for a low carbon future&rdqu...
    paper

    Carbon Dioxide as Natural Refrigerant

    11 July 2011 | Article / Press | Published: 2010
    The use of halogen based chemical compounds as refrigerant has compromised the existence of life on the earth. This fundamental paper discusses the suitability of natural refrigerant CO2 in refrigeration and air condi...
    news
    July brings F-Gas Regulation deadlines across the EU

    July brings F-Gas Regulation deadlines across the EU

    8 July 2011
    4 July 2011 marked several official deadlines stipulated by the European F-Gas Regulation, with both individuals and companies now required to hold full F Gas Certificates and the European Commission expected to publi...
    paper

    Water-coupled carbon dioxide microchannel gas cooler...

    8 July 2011 | Report / Study | Published: 2010
    An experimental and analytical study on the performance of a compact, microchannel water-carbon dioxide (CO2) gas cooler was conducted. The experimental results addressed in Part I of this study are used here in Part ...
    news
    Marks & Spencer’s progress in rolling out CO<sub>2</sub> s...

    Marks & Spencer’s progress in rolling out CO2 s...

    6 July 2011
    In its latest sustainability report, UK food retailer Marks & Spencer evaluates its progress in achieving a set of 180 sustainability commitments outlined in its eco and ethical programme ‘Plan A’, inc...