Solar CST

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Technical specification & Key Performance Figures

Attribute	AGNi-69
Geometry
Dish size (m)	8.3 x 8.3
Aperture Area (m²)	68.89
Focal Length (m)	6.2
Performance
Peak Thermal Capacity (KW_thp)	18.5
Peak Energy generation per day (KWh_th) or (Lakh.Kcal)	148 KWh_th or 1.27 lakh Kcal
Max. Temperature & Operating Media	Hot Water–95-100°C Steam–180°C Thermic Oil – 250°C
Operating Media	Thermic Fluid/Water
Operating Temp. & Pressure	250°C (Thermic Fluid) & 1-8 bar (Water)
Steam Generation Capacity (up to 180°C & 10kg/cm2)	24 kg/hr or 192 kg/day
Equivalent fuel savings per day when integrated with LPG based cooking @ 60% LPG utilization efficiency (Ref: https://link.springer.com/article/10.1007/s10668-019-00471-9)	LPG = 19.1 kg
Weight (kgs)	1500 kgs
Sun Tracking	Fully automated Dual axes
Sun Tracking Accuracy	0.1°
Structure	Galvanized/Painted Structural Steel
Max. Survival Wind Speed (Parked) (kmph)	180
Operating Wind Speed (kmph)	50
Method of Solar Integration with existing setup	Hybrid mode: integrated with existing setup
Reflectors	Solar Grade Mirrors

Performance values are measured in Standard Test Conditions (STC) @ 8 hours of Solar DNI = 600W/m² or 4.8KWh/m²-day

CSTs can help reducing the fuel oil/electricity during day time by way of integrating them with their existing units
Its a device which can concentrate solar radiation using mirrors/lenses to produce high temperatures in the range of 100 to 450 C or more even.
These devices, however, need automatic tracking so as to focus Sun rays on to a receiver all the time. They can also tap only direct normal radiation and not the diffuse.
Solar water/air heaters are already in promotion at commercial level but these are limited to temperatures below 90C
They also require larger space for desired heat delivery, but have advantage of collecting both diffuse & direct radiation
Use of CSTs at places of direct utility make them viable subject to availability of good DNI

Fixed focus single & dual axis tracked elliptical dishes (Scheffler) for direct indoor cooking (50-100 people) & for steam generation (cooking, laundry, space cooling etc. of any capacity)
Fully tracked Fresnel based dishes (Arun ) for process heat, cooling, laundry applications
Parabolic troughs, Paraboloid dishes & LFR introduced recently
Active Suppliers : Dish cookers- 20; Scheffler dishes- 10 & Arun technology -1, Other Technologies - 5
20,000 dish cookers, 150 indoor direct cooking & 140 steam cooking/ process heat systems installed with 50,000 sq. m. area

Total Number of Systems	144
Steam Cooking Systems	121
Solar Cooling	8
Process Heat & Laundry Applications	15
Installed as on 31st March, 2013	28000(approx.)
Under Execution	23 Nos. with 8100 sq. m.

Type of CST Collector	Collector Area m2
Parabolic Schfeller Dish	23000 m2
Paraboloid/ Arun Dish (Moving Focus)	2470 m2
Parabolic Trough	1000 m2
Linear Fresnel Reflector	1500 m2