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Aseel

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Solar Water Heaters installed at Aseel Retirement House, Lebanon

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Aseel

  1. 1. RESPONSIBILITY SUSTAINABILITY
  2. 2. ASEEL MARONITE RETIREMENT HOUSE Aseel Retirement House is located in Furn El Chibek, it is a residence housing facility intended for senior citizens. Additional facilities are provided within the building, including facilities for meals, gathering, recreation, and some form of health or hospice care. It consists of two buildings, home for 110 elders, 25 nuns, 32 students, and 45 workers.
  3. 3. Building 1 Heating System In the first building, we replaced two 50-years old Chapee Boilers by one brand new 146KW Viessmann boiler, burner and controller, replaced all the corroded pipes by new very well insulated pipes, installed new exhaust, new pumps, cables… we installed a tile layer, cleaned the black walls from soot and dirt. AfterBefore Phase I
  4. 4. Replacing the hot water tanksWe replaced a 500L very corroded hot water tank by two European DHW tanks1500L each, double enamel coating, 50 mm polyurethane insulation and with acleaning flange to clean it annually, we painted the room and built an Aluminumdoor so the maintenance team can access the room easily. Before After Phase I Phase 2
  5. 5. Installing the Solar SystemAs per our design to heat water up to 60°C, calculations, and the collectors sizingby Polysun simulation software, we installed 50 m2 gross area vacuum tubecollectors on roof, black steel piping and rock-wool insulation with jacketing.
  6. 6. Building 2 Heating System In the second building, we also replaced two 50-years old Chapee Boilers by one brand new 146KW Viessmann boiler, burner and controller, replaced all the corroded pipes by new very well insulated pipes, installed new exhaust, new pumps, cables… AfterBefore Phase I
  7. 7. Replacing the hot water tanksWe replaced a 1,000L horizontal very corroded hot water tank by two EuropeanDHW tanks 1500L each, double enameled, 50 mm polyurethane insulation andwith a cleaning flange to clean it annually. Before Phase I After Phase 2
  8. 8. Installing the Solar SystemAs per our design to heat water up to 60°C, calculations, and the collectors sizingby Polysun simulation software, we installed 50 m2 gross area vacuum tubescollectors on roof, black steel piping and rock-wool insulation with jacketing.
  9. 9. Automation of the 2 systemsWhen the temperature difference between solarcollectors (T1) and one of the two tanks (T2, T4) reachesthe switch-on temperature (ΔT on) usually 8 degrees thesolar circulation pump is turned on immediately and atthe same time the electromagnetic valve turns to the tankwhere asks for heating. According to prior logic, twotanks T2, T4 are heated one by one. The DHW tank 1 isheated as a priority. When it reaches its switch offtemperature or when it reaches its maximum storagetemperature, then second-priority tank is loaded. Thecold water inlet of the first tank is the hot water outlet ofthe second tank, so we can achieve more stratificationlayers, and preserve hot water, to make use of solarenergy to the largest extent.
  10. 10. Results1. Instant continuous supply of hot water and space heating.2. Reduce the diesel running cost up to 80% annually, and maximize the use of solar energy.3. Intelligent Management By adopting the most advanced control system, Solar energy can not only satisfy the energy request but also make the system running automatically. The control system is reasonably designed, stable and reliable.4. Equipment and Device Selection Basis: Advance Technology, Economic in Cost, Safe and Reliable in Quality, Easy Maintenance and Application, etc,;
  11. 11. Thank You

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