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COST OF OPENING A DOOR

Cost of Opening a Door =7 

Energy Calculation

E = m C ∆T

m : Mass of Air

C : Specific heat of Air at given Temperature

∆T : Temperature Difference

m = Density X Volume

Density of Air at 40˚C = 1.127 Kg/cu. meter

C = Specific Heat = 1.005 KJ / (Kg ˚C)

∆T = Temperature Difference = 15˚C

(assuming outside temperature is 40˚C and inside is 25˚C)

Volume = Area X Velocity of Air from Door X Time of Opening

(Say :       Door Size = 8ft X 4 ft

                Velocity = 1 m/s = 200 fpm

                Time of Opening = 1 min

                Volume = 32 X 200 X 1 = 6400 cu. ft. = 181.22 cu. meter)

m = Density X Volume

(from Above             = 1.127 Kg/cu. meter X 181.22 cu. meter

                                = 204 Kgs)

E = m C ∆T

= 204 kgs X 1.005 KJ / (Kg ˚C) X 15˚C

= 3075.3 KJ = 0.85425 KWh

Thus –

India if Per KWH cost of Power is Rs 8.10

Cost of Opening the Door of Size 8ft X 4ft for 1 min is = Rs 6.92

Cost of Running an Air Curtain of 4 ft = 400W (Input Power) for 1 minute = 6 paise

Rate per Kwh X Time X Power Input

8.10 X 1/60 X 0.4 = 5.4 paisa

Net Saving = Rs 6.92 – 0.06 = Rs 6.86

About Mitzvah

Mitzvah has made a picture of an exceptionally engaged framework-driven designing organization conveying high-performing energy-saving items. A committed group of more than 180+ specialized individuals has helped in excess of 9000 clients spread across the globe in 11 nations, in accomplishing the ideal outcomes.

We have been serving customers with applications from as little a takeaway windows to as high as 9-meter high truck entryways, from shoot coolers at - 40˚C to camelback conveyorized hot stoves at 300˚C, from bistros, eateries, dinners to Airports passages, from transports to holder and correspondence fortifications utilized by Army.

Mitzvah covers this on the assembling front from its creation unit and ancillaries spread in the National capital locale of India, and on the advertising from has a business network in all significant urban communities of India, and global distribution centers at Bahrain, UAE, Nigeria, and Nepal.

We are consistently anxious to take new difficulties and investigate freedoms to create and increase the value of the existence of our clients, we can guarantee you an orderly methodology, proficient disposition, and a-list item and applications focussed on your need and advantage, are totally bundled in one name "Mitzvah".

Why Mitzvah

1. Global Presence: We have a strong network of 800+ resellers and agents are spread over 11 countries with more than 153000 installations.

2. Indigenous Manufacturing: Each component of our product is engineered to the highest precision and meticulously designed.

3. Excellent Service: We have a strong service network and various warranties available on every product.

4. R&D: Our engineers are constantly innovating products to positively impact the industry and work towards saving the environment and energy.

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