INTRODUCTION:
The black soldier fly ,is a common and wide sprayed fly of the family Stratiomidae.It is useful for recycling organic waste and generating animal feed.An adult female lays approximately 200 to 600 eggs at time.Black soldier fly larvae are an alternative source of protein for aquaculture ,animal feed ,pet food .The larvae are produced and processed in industrial scale.
28/02/2025
I had meeting with Dixit sir, Prasad sir and Abhijit sir during this they explain me about BSF chamber ,how to construct and necessary additions in old chamber .After that I was observed old uncompleted chamber taken the measurements and Start to repair this chamber.
01/03/2025
I repair the chamber by using silicon for stick the net to wooden structure. After cleaning the chamber i was taken measurements and starts cutting insulation sheet
02/03/2025
Cutting the insulation sheet and attach to chamber structure with glue.There we cut the portion where we connect the exhaust fan and cooling pad to maintain the tempreture and humidity.
03/03/2025
The 1*1 foot cooling pad is connected to one side of the chamber and AC fan (100CFm) is adjusted to pull out the cool air from pad to inside the chamber. By this adjustment we can maintain tempreture . Continuous water supply given to cooling pad and water collected after fall down from pad and again use this water to decrease the tempreture of pad
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04/03/2025
Upper side of the chamber was not closed to check the sun light effect under chamber .After completion of insulation ,water supply system connection we connect data logger inside the chamber for taking readings of temperature and humidity.
07/03/2025
After connection of data logger head in front of the exhaust fan i was taking reading of temperature and humidity and water continuously in bucket after 1 hour 15 litre. we taken readings of chamber by 1 minute gap.
08/03/2025
I found a leakage of water inside the chamber on net of chamber. I sealed the leakage and get observations better than previous reading but not temperature maintained .
11/03/2025
We discussed with Abhijeet sir and I connected 2 LED lamps of 50 watts inside the chamber and upper surface of chamber was closed. I Taken readings of the chamber. Difference between outer and inner temperature is near 3 degree is not sufficient.
12/03/2025
Meet with Dixit sir, Prasad sir and Abhijeet sir and discussed about chamber. In this discussion mathematical calculations of intensity of light temperature effect and humidity .Conclusion of this meeting is cooler addition inside the chamber and taking readings without sunlight, taking reading with LED as well as taking readings with sunlight .
14/03/2025
I keep the cooler inside BSF chamber with water .Its weight with water is 27.100 kg .First ten readings with cooler and upper surface is closed and fan pad system is off .At this condition temperature is nearly about 27 degrees and humidity is 68 percent .After that i taken readings with starting exhaust fan for 1 minute after five minute .At that time outer temperature is 36 degrees and inner temperature is 28 degrees.
15/03/2025
I Taken readings with staring exhaust fan, cooler, cooling pad and also the LED .the temperature is nearly 25 to 26 degrees and humidity 70 to75 percent
16/03/2025
Today I combine all data in excel sheet and talk With Dixit sir about chamber discussed next improvement inside the chamber. We can add LED, cooling pad , exhaust fan. Also study the relation between cooling pad area and exhaust fans and temperature reducing inside the chamber.
22/03/2025
Today, we had a discussion with Dixit Sir and Shubham Sir about how to maintain the right temperature and humidity for BSF (Black Soldier Fly) farming. We talked about using a cooling pad and fan system to control the environment. We also discussed the role of wet bulb temperature in the cooling process, how much air a 100 CFM fan can move, and what kind of material would be best to use on the top surface of the BSF setup.
23/03/2025
I designed a new fan and cooling pad system inside the box and presented it to Dixit Sir. After observing the setup, he advised me to take temperature and humidity readings. I collected the data, but unfortunately, the readings were not as satisfactory as expected.
16/04/2025
We discussed with dixit sir about how much amount of heat we want to remove from breeding chamber. Calculation is Q=mCp dT =960 g/ hr we get this value from old taken readings Cp is 1.005 m=0.0607kg=60.7gThis is about calculating how much heat needs to be removed from a breeding chamber (probably to maintain a desired temperature or condition inside it).
1. Q = m·Cp·ΔT
This is the standard formula for calculating the amount of heat:
- Q = Heat (in joules or kcal, depending on units used)
- m = Mass of the substance (in kilograms or grams)
- Cp = Specific heat capacity (how much heat is needed to raise the temperature of 1 kg of the substance by 1°C)
- ΔT = Change in temperature (final temp – initial temp)
2. “960 g/hr” — This line is a bit confusing:
- It seems like they wrote “960 g/hr“, but in context, it probably means 960 J/hr or calories/hr — referring to heat energy per hour, not mass. It looks like a unit mistake.
3. “We get this value from old taken readings”
- The value of Q (heat to remove) — 960 — was calculated earlier using data from previous experiments or observations.
4. Cp is 1.005
- Cp is the specific heat capacity of air, usually 1.005 kJ/kg·°C (or 1005 J/kg·°C), which makes sense if you’re dealing with air in the breeding chamber.
5. m = 0.0607 kg = 60.7 g
- The mass of air or the substance being cooled/heated per cycle (or per hour) is 0.0607 kg.
So in short:
They are using the formula Q = m·Cp·ΔT to find how much heat (Q) needs to be removed from the breeding chamber.
The result was Q = 960 J/hr
Using:
m = 0.0607 kg
Cp = 1.005 kJ/kg·°C
ΔT = ? (not mentioned, but must’ve been used in the earlier calculation)
