RESPONSIBILITY SUSTAINABILITY

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.

ASEEL MARONITE RETIREMENT HOUSE

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.

Before After Phase I

Replacing the hot water tanks We replaced a 500L very corroded hot water tank by two European DHW tanks 1500L each, double enamel coating, 50 mm polyurethane insulation and with a cleaning flange to clean it annually, we painted the room and built an Aluminum door so the maintenance team can access the room easily.

Before Phase I

After Phase 2

Installing the Solar System As per our design to heat water up to 60°C, calculations, and the collectors sizing by Polysun simulation software, we installed 50 m2 gross area vacuum tube collectors on roof, black steel piping and rock-wool insulation with jacketing.

Building 2 Heating System

Before After Phase I

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…

Replacing the hot water tanks We replaced a 1,000L horizontal very corroded hot water tank by two European DHW tanks 1500L each, double enameled, 50 mm polyurethane insulation and with a cleaning flange to clean it annually.

Before Phase I After Phase 2

Installing the Solar System As per our design to heat water up to 60°C, calculations, and the collectors sizing by Polysun simulation software, we installed 50 m2 gross area vacuum tubes collectors on roof, black steel piping and rock-wool insulation with jacketing.

Automation of the 2 systems

When the temperature difference between solar collectors (T1) and one of the two tanks (T2, T4) reaches the switch-on temperature (ΔT on) usually 8 degrees the solar circulation pump is turned on immediately and at the same time the electromagnetic valve turns to the tank where asks for heating. According to prior logic, two tanks T2, T4 are heated one by one. The DHW tank 1 is heated as a priority. When it reaches its switch off temperature or when it reaches its maximum storage temperature, then second-priority tank is loaded. The cold water inlet of the first tank is the hot water outlet of the second tank, so we can achieve more stratification layers, and preserve hot water, to make use of solar energy to the largest extent.

Results

1.  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,;

Thank You