SANYO Develops The First Inverter Driven Commercial Freezer With CO2 Refrigerant

World First*1 : SANYO Develops Inverter driven Commercial Freezer with CO2 Refrigerant

SANYO Electric Co., Ltd. (SANYO) has recently announced the development of a world first*1 inverter driven commercial freezer with CO2 refrigerant, and it will aim at practical use in the future.
The CO2 refrigerant received a lot of attention at the 21st Meeting of the Parties to the Montreal Protocol (MOP21) held from November 4, 2009 to the 8th, because CO2 has a much lower global warming potential*3 of about 1/1430 to 1/3920, compared to alternative fluorocarbons*22 widely used for commercial freezers,. Therefore it can contribute greatly to the prevention of global warming. The newly developed technology was funded as a “Project to Support Introduction and Practical Adoption of Emission Control Equipment to Control Three Fluorinated Gas Substitutes,” by NEDO, Japan’s New Energy and Industrial Technology Development Organization. Through the development of a highly efficient split refrigeration cycle and a compact Two Stage Rotary CO2 Compressor, SANYO was able to realize energy-saving and CO2 refrigerant technologies for commercial freezers.
Using the newly developed Inverter driven Commercial Freezer with CO2 Refrigerant, a customer can reduce CO2 emissions resulting from electrical consumption by up to 15%*4, compared to a conventional commercial freezer with alternative fluorocarbon (HFC) refrigerant(R404A). This can make a significant contribution towards the prevention of global warming and the realization of a low-carbon society.
SANYO is promoting the development and application of CO2 refrigerant equipment for the prevention of global warming and the realization of a low-carbon society.

As of December 2, 2009, for commercial freezers
Compounds such as hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) used in industry as substitutes for banned chlorofluorocarbons (CFCs)
global warming potential: For the effect that the material of the unit weight discharged in the atmosphere gives global warming, CO2 as 1.0, it is the value that the effect was shown as a relative value.
Based on SANYO’s own testing data, compared to an existing SANYO model of single speed commercial freezer using R404A refrigerant.

I. Development Background

Adopted in 1987, the Montreal Protocol is an international treaty that requires member countries to reduce in stages the production and use of certain fluorocarbons such as chlorofluorocarbons (CFCs), once widely used in refrigeration and air conditioning equipment. Fluorocarbons destroy the ozone layer thereby affecting living organisms, and also have the potential to cause global warming. Today, alternative fluorocarbons, which do not damage the ozone layer, are used as refrigerants in refrigeration and air conditioning equipment. However, these alternative fluorocarbons still have a global warming potential that is 1,430 to 3,920 times greater than CO2. Given the concern that alternative fluorocarbons are continuing to accelerate global warming, emissions of these substances have been regulated under the Kyoto Protocol as greenhouse gases. Natural refrigerants, however, have a much smaller environmental impact than alternative fluorocarbons, and CO2 refrigerant in particular does not have the issues of toxicity and flammability found in some other natural refrigerants (see reference below).
In 2000, SANYO developed a Two Stage Rotary CO2 Compressor, which was the first of its kind in Japan, and the following year the company used this technology to launch a CO2 heat pump water heater for household use (Ecocute). In 2007, SANYO came out with Japan’s first open front beverage showcase using CO2 refrigerant. Accordingly, SANYO has been leading the industry in CO2 refrigerant products. Commercial freezers are indispensable equipment for storing food products in restaurants, supermarkets, and convenience stores. Standards for commercial freezers are being investigated under the Top Runner Program*5 and Japan’s Act on the Rational Use of Energy, and there is a growing need for refrigeration equipment that can reduce CO2 emissions in order to prevent global warming.

Japan’s Top Runner Program seeks to improve the environmental performance of various types of products such as electrical goods and automobiles, by setting future industry standards based on the most advanced products currently on the market.

image thumb17 SANYO Develops The First Inverter Driven Commercial Freezer With CO2 Refrigerant

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