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Dalian-Xinghai: Environment-friendly heating and cooling for a business in , with 3 Unitop® 33/28 units

is crucial to the country’s sustainable Client development. Xinghai Bay Development and Construction Administration, Following intensive studies of success- Dalian Municipal Government ful heat pump applications in Sweden System Consultant and Norway, XBA decided in 2005 to Skandinavisk Termoekonomi AB use this technology in Dalian. Cooperation Partner Friotherm’s Unitop® type heat pump Dalian Bingshan Group units providing high efficient dual function in heating and cooling genera- tion met the city’s special demand for Dalian City a reliable and environmentally friendly solution. Dalian is one of China’s most vibrant and modern cities with a population of Since early 2007, 3 Unitop® 33/28 5.7 million and a land area of 12,574 3 heat pumps provide heating and cool- km2. It is located in the southernmost ing energy for an initial floor space of part of the in 300,000 m2. The heat pump plant is standard apartment buildings. Xing- . located in the basement of a commer- hai Bay Development & Construction cial two-floor building. Within the first The municipal government of Dalian Administration (XBA) is the manage- buildings connected are the Dalian paid great attention to the city’s en- ment body designated by the city gov- World Exhibition Centre and the City vironmental development for the last ernment to carry out the area’s plan- Natatorium (indoor swimming pool). 20 years. As one of the most liveable ning and development, infrastructure cities in China, Dalian is recognized construction and real-estate manage- by the Chinese Central Government as ment, as well as the environment pro- “Free of charge”-energy reclaimed “National Model City in Environmen- tection and state-asset management. Heat is reclaimed from treated sewage tal Protection”. The state government water of the adjacent sewage treat- chose Dalian as a demonstration city District Heating and Cooling ment plant. During winter, the units for heat pump applications in China. work in heat pump mode and the com- Centralized district heating schemes pressors operate in series. In summer, in China were initiated in the 1950’s, Xinghai Bay Business District the units are used as AC-chillers with while district cooling is yet a new con- the compressors operating in parallel. Located at the coast, the Xinghai cept to the country. The question how Excess heat is rejected to sewage water. Bay Business District is a rapidly de- to generate and use energy more ef- veloping area around the 110,000 m2 ficiently along with economic growth The installation of the heat pump/ , Dalian’s scenic tour- became a new, important issue that chiller units was completed in early ist attraction. The idea of the city government is to develop the Xinghai Business District into a conglomerate area that integrates exhibition cen- tres, office buildings, recreational facilities, shopping malls and high 4

Legend 2007 and followed by an instantly suc- 1 The skyline of rapidly developing Dalian cessful trial operation period in heat City seen across the labour park, the pump mode. The Dalian Software Fair symbol of Dalian. and the Davos 2 The City’s Natatorium (indoor swimming held in the Xinghai World Exhibition pool): one of the first buildings connec- ted to the heat pump plant. Centre were the first events taking 3 The Xinghai Bay development area advantage of the very reliable perfor- with the impressive Xinghai Square in mance of the 3 Unitop® 33/28 units. the center. Indicated are the locations 6 of the heat pump plant and the areas Sea water will be used as heat source served. in winter for further extensions of the Main features of a Unitop® 33/28 4A Unitop® 28 type compressor in the heat pump plant. During summer, ex- works of Friotherm. The integrated oil • Open-type single stage compressors system is partly visible at the bottom. cess heat will be rejected to the sea. • Tough industrial design 5 One of the Unitop® 33/28 heat pump • Planetary type gears units assembled in the workshop of Dalian Bingshan Group and operating at Let our customer speak… • Suited for all drive systems the Xinghai facility. • Series & parallel operation ® “This is one of the efforts made by the 6 Unitop heat pump/chiller units are en- • Refrigerants: halocarbon/hydrocarbon gineered to best meet the very specific Dalian to promote a’green • High efficiency (COP) requirements of each client. Davos’ in Dalian,” says Mr. , • Operating temperatures –40°C/+80°C of Dalian. “We would like to • Suitable for almost any heat source take this opportunity to show our ex- Technical data: • Large capacity, small floor space perience in environmental protection 3 Unitop® 33/28 heat pump units, each and energy saving as an effort to build Operating mode Summer Winter a sustainable and environment-friendly Customized Plant Control System society.” Chilled water A Siemens S95 PLC-Type control sys- in/out (°C) +10/+3 +7.5/+2.5 The high expectations of the client tem is used for local control of the Heating water regarding COP were met at all times: heat pumps. Its main advantages for in/out (°C) +23/+33 +55/+65 “The income has outranged the invest- the customer are the high grade of Cooling capacity (kW) 10,000 — ment and we are making profit. Now customisation and its exceptionally Heating capacity (kW) — 8,323 we save more than 30% of energy com- high reliability, combined with the Power absorbed (kW) 1,882 2,485 pared with conventional solutions”, industry-specific standard and world- COP 5.31 3.35 says Mr. Lin Hao, director of XBA. wide availability.

Friotherm AG Zürcherstrasse 12 · P.O.Box 414 CH-8400 Winterthur · Switzerland Tel. +41 (0) 52 2 62-80 80 · Fax -00 03 E-Mail [email protected] Internet www.friotherm.com

E013-08 Subject to technical change