ANALISIS RANCANG BANGUN PEMANAS AIR SURYA SERBAGUNA BERKAPASITAS 600 LITER/HARI (STUDI KASUS PADA PESANTREN DI KURIPAN LOMBOK NUSA TENGGARA BARAT)
Abstract: As one of tropical
countries in the world, Indonesia has abundant potential of solar energy,
up to 4.8
kWh/m2. Due to
this fact, its
utilization by applied technologies is necessary to
investigate. The aim of this research is to analyze the design feasibility
of a solar water heater with600
litres/day capacity to fulfill the requirement of a pesantren dormitory
inKuripan, Lombok Island, West Nusa Tenggara. As a preliminary study, a modelof
solar water heater with 20 litres
capacity is tested.
The result indicates
that by the
average temperature of inlet
water 28.50C, the
average temperature of
outlet water obtained is 49.20C
and its maximum value is 58.10C in the sun heating for 8 hours and
the collector area of 0.15 m2. The average efficiency is 0.54 and
its maximum value reaches
0.83. Then the
data measured is
used to design
a water heater with 600 litres/day capacity. There are 4 alternatives of
energy sources, i.e. LPG, electricity, solar-LPG and solar-electric energy. By
taking material and manufacturing
cost into account,
the investment cost
of these equipments can
be estimated. The
operational cost is
calculated for 1 year. By using the present value analysis,
the high net present values are gained for solar-LPG, LPG and solar-electric
water heater, respectively. Meanwhile the high
net annual values
are obtained for
solar-LPG and LPG
water heater, respectively. The
net present and annual value for electric is negative. Due to this analysis,
the solar-LPG water heater is considered as the best choice and proper to make.
Keywords: Solar energy, Solar
water heater, Collector, Present value analysis, Annual value analysis
Penulis: P. Dwi Setiawan,
Wahyu Purwo Raharjo
Kode Jurnal: jptmesindd110017
