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                May 2017
            Vol.47
            No.25
            China high-speed railway and subway industry is continuing in a golden development period, with broad prospect. As a largest market in the world, there are 6,000km constructing projects and 3,000km of new projects planned during the "Thirteenth Five-year Plan". Promoting by "The Belt and Road" strategy, city-on-wheel is moving forward to world-on-rail.
            [More]
            • Evaluation and analysis on air quality in underground railway carriages in different climatic zones of China
            • Air conditioning design schemes for data room of railway dispatching centres
            • Study on pressure wave in high-speed underground railway tunnels

            China Refrigeration Expo was held on April 12-14 in Shanghai. Celebrating its 30 anniversary, the show achieved many historical records in 2017: over 1,200 exhibitors from 33 countries and regions, over 60,000 visitors from around 100 countries and regions and total 50,000 SQMs net exhibiting areas. During the show, Journal of HV&AC interviewed many giants to share their ideas and strategies on products, technologies and further development.
            • China Refrigeration Expo: activities and interviews
            • Control analysis on secondary network of centralized heating system
            • Indian automobile air conditioning - the Journey so far

            [More]          [More]       
            Coming events:
            3rd New technologies forum on data centers air conditioning systems
            • Time: May 23rd
            • Venue: Beijing Yulong Hotel
            With accelerating of industry upgrading and structure adjustment, new technologies representing by artificial intelligence and virtual reality are blooming, which pushes the development of big data industry including internet, finance, insurance and e-business. Data center industry is entering into a large scaled constructing period. The 3rd forum will present the trend of data centers, case studies, standards, operation and management experience and energy retrofitting, as the theme of "Safety, green and high efficiency".

            2017 HVAC technology conference on Airport terminals
            • Time: July
            • Venue: Beijing
            Civil aviation industry has been increasing for a long time with the sustainable development of China economy, especially the blooming of airports and hubs establishment. According to the "Thirteenth Five-year Plan", China will set up and expand 74 airports, achieving to over 50 airports. Differing from general public and commercial buildings, large civil airports and terminals has unique features which are worthy to share and discuss with industry professional, including designers, researchers, contractors and operators, etc. The conference will present system design, case studies, operation & management, testing data and energy efficiency technologies.

              China's "Thirteenth Five-year Plan": 6 targets and 9 tasks of Construction industry
            May 4, 2017 – Ministry of Housing and Urban-Rural Development of China announced "Construction industry development plan in the 'Thirteenth Five-year Plan'" which identifies 6 main targets and 9 tasks. The Plan points out that according to the targets requirements, by 2020, all urban new civil buildings should meet the related requirements of energy efficient standards. Meanwhile, the urban green buildings and green materials should account for 50% and 40%, respectively. Assembly building areas should account for 15% of new building areas.

            Codes and Standards for low-GWP Refrigerants
            President Trump is signing an executive order to roll back the Obama Climate Initiative. Will this change of policy mean that the HVACR industry's move to new, low-GWP refrigerants is ending? Not at all. The industry continues to phase down the use of HFCs. We are testing new refrigerants and continue to redesign equipment to accommodate them. Equipment manufacturers are driven by a domestic and global market which is demanding a move away from HFCs like R-134a and R-407A which are potent greenhouse gasses. So, with or without leadership from Washington, the trend continues.

            UL increases charge allowed in domestic fridges in the U.S. to 150 g from 57 g
            Underwriters Laboratories (UL) to adopt a new safety standard, UL 60335-2-24, Edition 2, which will boost the hydrocarbon charge allowed in U.S. domestic refrigerators to 150 g from 57 g, the amount allowed under UL 250. Efforts are also underway globally and in the U.S. to increase the allowable hydrocarbon charge in commercial refrigerators above 150 g. The IEC is considering raising the limit for flammable A3 refrigerants to 500 g.
              Advertisement/contact: zhanglh@cadg.cn   
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