How does it work?• The generator contains a water-ammonia

solution.• Water is the absorbent• Ammonia is the refrigerant• The sun is heating the water-ammonia

solution till ammonia boils out of the water. It goes through the Generator and condensates in the condenser coil, dripping down and is collected by the receiver.

• During the night, when the generator is cold (room temperature), ammonia is drawn back through the evaporator inside the brine and into the water in generator. While evaporating, the ammonia absorbs heat from the brine and freezes water.

• The brine contains salty water, which allows to transfer the cold to the water inside the plastic mould without freezing.

• The generator is heated by solar collectors.• The solar array is made of 5 flat collectors

and a parabolic water heater.• In case of lack of sun, we use a backup

biomass boiler to heat the generator

Cara Kerja• Di dalam Generator adalah campuran air dan

amoniak.• Air sebagai penyerap amoniak• Amoniak sebagai refrigerant• Siang hari dilakukan pemanasan campuran air-

amoniak• Amoniak akan menguap dan keluar dari generator,

lalu kondensasi di kondenser coil, berubah menjadi cair kembali dan ditampung di receiver.

• Malam hari, saat generator kembali dingin (suhu ruang),

• Amoniak kembali ke generator melalui evaporator (di dalam brine) .

• Evaporator (penguapan) amoniak menyerap panas di dalam brine dan menyebabkan pendinginan.

• Di dalam brineterdapat air asin, yang mempunyai fungsi menghantar dingin ke cetakan es dari plastik, tanpa dirinya membeku.

• Pemanasan generator dilakukan oleh sollar collector.

• Solar collector terdiri dari 5 flat panel dan 1 parabolic water heater.

• Jika cuaca tidak cukup panas, kami memanaskan dengan kayu bakar

Icemaker

Condenser

Generator

Receiver

Brine

Evaporator inside the brineGenerator

Heating circulation pipe Condenser with coil

Backup boiler with burned biomassParabolic heat collector

Heat circulation pipe and pumping with batteries powerSolar collector consist of 5 flat panes and 1 parabolic heater