Bảng 20,1 ứng cử viên giải pháp thay thế cho CFC trong các hệ thống làm mát hiện tại CFC thay thế tiềm năng tân trang ứng dụng nước và máy làm lạnh nước muối, quá trình làm mát tự động điều hòa không khí, nhiệt độ trung bình thương mại thực phẩm hiển thị và thiết bị giao thông vận tải, tủ lạnh / tủ lạnh, máy hút ẩm; băng các nhà sản xuất, nước nước đài phun nước và máy làm lạnh nước muối. | 544 Energy Management Handbook Table Candidate Alternatives for CFCs in Existing Cooling Systems CFC Alternative Potential Retrofit Applications CFC-11 HCFC-123 Water and brine chillers process cooling CFC-12 HFC-134a or Ternary Blends Auto air conditioning medium temperature commercial food display and transportation equipment refrigerators freezers dehumidifiers ice makers water fountains CFC-114 HCFC-124 Water and brine chillers R-502 HFC-125 Low-temperature commercial food equipment 1990. The Energy Policy Act of 1992 revised and further increased the excise tax effective January 1 1993. Another factor to consider in ASHRAE Guidelines 3-1990 Reducing Emission of Fully Halogenated Chlorofluorocarbon CFC Refrigerants in Refrigeration and Air-Conditioning Equipment and Applications The purpose of this guideline is to recommend practices and procedures that will reduce inadvertent release of fully halogenated chlorofluorocarbon CFC refrigerants during manufacture installation testing operation maintenance and disposal of refrigeration and air-conditioning equipment and systems. The guideline is divided into 13 sections. Highlights are as follows The Design Section deals with air-conditioning and refrigeration systems and components and identifies possible sources of loss of refrigerants to atmosphere. Another section outlines refrigerant recovery reuse and disposal. The Alternative Refrigerant section discusses replacing R11 R12 R113 R114 R115 and azeotropic mixtures R500 and R502 with HCFCs such as R22. REGULATORY AND LEGISLATIVE ISSUES IMPACTING AIR QUALITY Clean Air Act Amendment On November 15 1990 the new Clean Air Act CAA was signed by President Bush. The legislation includes a section entitled Stratospheric ozone Protection Title VI . This section contains extraordinarily comprehensive regulations for the production and use of CFCs halons carbon tetrachloride methyl chloroform and HCFC and HFC substitutes. These regulations will be phased in
