Phone +46 (0)31-508806
Fax +46 (0)31-508805

Branch of business: Hydraulic consultation in the field of complex pipe system calculations.

Email: ola@hydroram.se

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Summary

We have been active for 15 years in the field of advanced hydraulic calculations of district heating and cooling and other complex pipe systems. However, the company Hydroram AB is transformed from the company OLA ROSSING AB in januari 2003.
We are familiar to conventional and unconventional solutions in several large systems.

Experiences from hydraulic calculations in more than 30 different district heating and cooling systems.

Often works with supervision, checking hydraulic solutions made by others.
Extensive knowledge about hydraulic transients (waterhammer) in complex pipe systems.
Selling education to energy distributers, consultants and Universities.

Examples of assignments

We have made technical studies regarding hydraulic behaviour for almost all district heating and cooling systems in the Stockholm region.
Educations in system knowledge for staff of heat distribution companies ( e.g. Gothenburg Energy and Stockholm Energy) and other consulting companies as FVB.
We have participated in several projects ( e.g. in Riga) as subconsultant to FVB, handling hydraulic distribution.
We have made plans for safe sectioning in several district heating systems including transient calculations of valve closures and pump trips.
We have participated as hydraulic consultant in several integrations of larger district heating systems.
We have made safety studies regarding hydraulic transients in several systems, e.g. mine water, sewage water, vinyl chloride.

We have made research projekt for Fjärrvärmeföreningen, branch organisation for swedish district heating.

International Projects

1992, Edmonton, Canada, district heating and cooling, through FVB.
1995, Doga, Turkey, district heating, through Göteborg Energy International.
1996, Chicago, USA, district cooling, through FVB.
1997, Fourteen Tunisian sewage water pumping systems, through Kvaerner Water.
1998, Istanbul, Turkey, freshwater pumping, trough ABS pumps.
1998, Kralkizi and Gökzu, Turkey, freshwater pumping, trough ABS pumps.
1998, Riga, Latvia, district heating, through FVB.
1998, Windsor, Canada, district cooling, through FVB/Kattner.
2001, Baltimore, district cooling, through FVB/Kattner.

Staff

Ola Rossing

Education: Bachelor of Science, Chalmers University of Technology, branch of operation.

1987-1989, Chalmers University of Technology, Institution of Thermo and Fluid-dynamic, research engineer working with hydraulic calculations in district heating systems and assisting in the education courses.
1990-2003 Ola Rossing AB.
2003- Hydroram AB

Gunnar Larsson

Education: PhD on dynamics in district heating systems, Chalmers University of Technology,
1999- 2001 Works half time at Chalmers as a researcher.
1999- 2001 Works half time at Ola Rossing AB as hydraulic expert.
2001-2003 Ola Rossing AB.
2003- Hydroram AB

References

District heating and cooling distribution companies:

Stockholm/Birka Energi AB
Göteborg Energi AB
Gothenburg Energy International Corp.
Södertörns fjärrvärme AB
Söderenergi AB
Norrenergi AB
Sigtuna Energi AB
Graninge Energi AB
Uddevalla Energi AB
Orust Kommun
Halmstad Energi AB
Trollhättan Energi AB
Jämtkraft AB
Karskoga Energi & Miljö AB
Varberg Energi AB
Jönköping Energi AB
Umeå Energi AB
Vattenfall AB
Kungälv Energi AB
Säter Energi AB
Öresundskraft AB
Växjö Energi AB

Other companies

FVB AB
SWECO AB
Nicon Industri AB
SwedPower AB
LKAB
ÅF AB
Stockholm Vatten AB
Birka Teknik & Miljö AB
Chalmer Univercity of Technology
Högskolan i Borås
Hydro Plast AB
CMC Byggadministation AB
ABS pumps International AB
VA-Ingenjörerna AB
STF AB
Svenska Fjärrvärmeföreningen / Svensk Fjärrvärme
Siemens Industrial Turbomachinary AB
Midroc Engineering AB

Hydroram AB Gamla Rambergsvägen 30 417 01 Göteborg SWEDEN Besök : 6157ggr

Ola Rossing : +46 (0)31 - 50 88 06, ola@hydroram.se Gunnar Larsson : +46 (0)31 - 50 88 36, gula@hydroram.se Fax: +46 - (0)31 - 50 88 05