PICK ‘N PAY – Longmeadow Distribution Centre
Solar Heat Exchangers: 11,4-kL Solar system with 158 m2 Array of Flat Plate Solar Collectors
TOTAL M2 Panels 158
Tank Storage 11,400
Year Commisioned 2008
Tank Construction Steel with non-corrosive lining
High / Low- Pressure Storage High Pressure
Litre / m2 72
Energy Savings / Annum kWh 135,525
SHORT DESCRIPTION OF THE SYSTEM
Solar Heat Exchangers successfully tendered for the supply and installation of various solar hot water systems for the Pick n Pay Distribution Centre in Modderfontein, Gauteng.
Established in 1987, Solar Heat Exchangers is a leading South African specialist in energy efficient water heating applications and is proud of its reputation for technically superior products and quality workmanship. The company’s products cover various renewable energy and energy efficient water heating applications including process heat, sanitary hot water, space heating and swimming pool heating using solar, heat pumps & gas as a heat source. Solar Heat Exchangers is a wholly owned subsidiary of Solsquare, a company established in 2007 specialising in Solar Photovoltaic system design and installations.
CHARACTERISTIC’S OF THE SYSTEM
The solar hot water systems were specified by WSP Engineering as per information provided by the client. 2 x 1,600L systems, 1 x 1,000L system, 1 x 1,200L supplying bathrooms, main office and kitchen facility. 1 x 6,000L hot water system was installed to top up hot water used by the ‘lugwash’ (food pallet washing) machine. A total of 79 x 2sqm flat plate solar collectors were installed.
PLANT ROOM FOR STORAGE VESSEL
Each plant room houses 2 insulated storage tanks, heated by their respective solar arrays and backed up with electrical elements in case of no or low solar contribution.
SOLAR DAILY CONSUMPTION CALCULATION IMPORTANCE
Note: Although the solar systems were designed and modelled as per the requested specification by the engineers, the client brief and information provided was ultimately incorrect. When the buildings were occupied, the daily hot water consumption was higher than designed for. Solar system performance was therefore low as backup heating was regularly required to maintain hot water temperatures. An upgrade was thereafter commissioned by the client which included heat pumps as backup in order to reduce the daily kWh consumption of the systems.
MAINTENANCE & INSTALLATION CHALLENGES
Annual maintenance of all systems is arranged by the client.
CONTACT INFORMATION:Tel: 011 462 0024 Mail: firstname.lastname@example.org
No 40 Avant-Garde Avenue
Northlands Deco Park