ABSTRAKSolar Thermal Cooling System with its absorption cycle is expected to
replace the conventional air conditioning system with vapor compression cycle
because it is more efficient in terms of cost and energy. However, due to the heat
of the sun is not always stable, the system needs to be equipped with a backup
energy source, one of which is CNG. In the Manufacturing Research Center
building, the lack of facilities that support availability of CNG causes large
operating costs. Therefore, Optimization efforts with the aim to reduce operating
costs are needed. Simulation and optimization performed with EnergyPlus and
GenOpt. The conclusion is that the installation of 100 kW electric heater tankless
hot water storage tank is able to reduce total operating costs by 34.95% compared
to the use of a combination of solar thermal and CNG and 49.92% compared with
the full use of CNG.
ABSTRACTSolar Thermal Cooling System with its absorption cycle is expected to
replace the conventional air conditioning system with vapor compression cycle
because it is more efficient in terms of cost and energy. However, due to the heat
of the sun is not always stable, the system needs to be equipped with a backup
energy source, one of which is CNG. In the Manufacturing Research Center
building, the lack of facilities that support availability of CNG causes large
operating costs. Therefore, Optimization efforts with the aim to reduce operating
costs are needed. Simulation and optimization performed with EnergyPlus and
GenOpt. The conclusion is that the installation of 100 kW electric heater tankless
hot water storage tank is able to reduce total operating costs by 34.95% compared
to the use of a combination of solar thermal and CNG and 49.92% compared with
the full use of CNG.