#Ac unit calculator india for free
#Ac unit calculator india how to
#Ac unit calculator india software

Temp in = The air temperature inside the room ( ☌).

A = surface area of walls roof and floor (we will calculate this) (m 2).

U = U value of insulation (we already know this value) (W/m 2.K).

Q = U x A x (Temp out – Temp in) x 24 ÷ 1000. To calculate the transmission load we will be using the formula Just to note the manufacturer should tell you what the u value is for the insulation panels, if not, then you will need to calculate this.

The walls, roof and floor are all insulated with 80mm polyurethane with a U value of 0.28W/m 2.K.

The ambient air is 30 °c at 50% RH, The internal air is 1 ☌ at 95% RH.

The dimensions of our cold store are 6m long, 5m wide and 4m high.

#Ac unit calculator india software

Now If you’re doing this for a real world example then I recommend you use a design software such as the Danfoss coolselector app for speed and accuracy. Lets consider a simplified example of a cooling load calculation for a cold room. Cooling load calculation – Cold room worked example

Fruit and vegetables give off carbon dioxide so some stores will require a ventilation fan, this air needs to be cooled down so you must account for this if it’s used. This occurs when the door opens so there is a transfer of heat into the space through the air. The last thing we need to consider is infiltration which again adds 1-10% to the cooling load. To remove the heat we use a refrigeration system as this allows accurate and automatic control of the temperature to preserve the goods for as long as possible. Heat accelerates their deterioration so the products are cooled down by removing the heat. Learn more about Cold Room solutions here What is a cold room?Ī cold room is used to store perishable goods such as meat and vegetables to slow down their deterioration and preserve them as fresh as possible for as long as possible. Go green and get ahead of competition without Their wide range of products and market-leading application expertise enable you to think ahead and meet future refrigerant and energy regulations.

With Danfoss, you can build sustainable and efficient cold rooms.

#Ac unit calculator india for free

Want free cold room calculation design software?ĭownload Coolselector®2 for free -> Click here Scroll to the bottom to watch the video tutorial.

#Ac unit calculator india how to

We’ll first look at the heat sources and then we’ll look at a worked example of how to perform a cold room cooling load calculation in a simplified example. In this article we’ll be looking at how to calculate the cooling load for a cold room.

Try to avoid heating the water under cold condition.Cooling Load Calculation for cold rooms.

Buy a solar water heater, by the way, you can totally eliminate the electricity consumption of the water heater.

So make a timer or alarm to switch off the heater.

The main reason for power consumption is, mostly you forget to switch off the heater after reaching the point.

Note that the electricity consumption per day is lesser than the per hour consumption, it means, we are operating it for only 45 minutes. The water heater consumes 270 units for one year while operating it in 45 minutes per day. Water Heater Power Consumption – 45 minutes Look at the above table it consumes 1000 watts per hour (1 kW per hour). calculate the energy consumption per day, per month and per year. Let us consider Bajaj 1K watts Immersion Rod Water Heater (available amazon) and it operates 45 minutes per day. Learn More: VSWR Return Loss Calculation, Formula, Example Let us take one heater for example and we calculate the electricity consumption per day, per month and per year. Water Heater Power Consumption Calculation: Note: Sometimes, you see water heater wattage will be mentioned in kW, for that, you have multiple the wattage by 1000.įor example, look at the image of Bajaj Immersion Rod Water Heater, as per technical specification it consumes 1kW power.ġkW heater wattage = 1 x 1000 = 1000 watts In some house, you may intend to operate the heater in minutes’ basis means, the consumption will beĮ (kWh-Heater) = P (W) x Minutes per day / 60000Į (kWh-Heater) = 30 x P (W) x Minutes per day / 60000Į (kWh-Heater) = 365 x P (W) x Minutes per day / 60000 Learn More: Ceiling Fan Power Consumption Calculation, Power Saving TipsĮ (kWh-Heater) = 30 x Heater Watts x Operating Hours Per day / 1000įor calculating per year consumption, the formula will be,Į (kWh-Heater) = 365 x Heater Watts x Operating Hours Per day / 1000