## How do I know what size evaporator coil I need?

If the evaporator must move 400 gallons per minute: 14 x 400 = 5,600. Multiply the answer by 500: 5,600 x 500 = 2,800,000. This answer is the evaporator’s size, measured in BTUs per hour. Divide the answer by 12,000: 2,800,000 / 12,000 = 233.33.

### How do you calculate cooling coil tonnage?

How many tons of air conditioning is this DX or Chilled Water…

- (Ft^2 of fin area) x (500 fpm) / (400 cfm/ton) = Nominal Tonnage. For example-
- 8.0 ft^2 x 500 / 400 = 10 Nominal Tons. To simplify the equation: (square feet of fin area x 1.25) = Nominal Tonnage.
- (Nominal tonnage) x (400 cfm/ton) / (500 fpm) = approx.

**How do you calculate coil size?**

To obtain the coil length we have to divide the result by the section of the coil determined by coil width and thickness. The coefficient 1000 is used to compensate the dimensions in [mm] with the length in [m]. For example, a coil with OD = 1600mm, ID = 508mm and T = 0,6mm results in a length of 3010 meters.

**What is coil capacity?**

Rated capacity is defined as the heating capacity in watts of the coil at the rating points (i.e. the rated inlet and outlet water/air temperatures defined below). The rated capacity is used to calculate a water mass flow rate and a UA for the coil.

## How do you calculate the area of a coil?

Area of a Coil= (Average Coil Length x Inductance ) / ( NÂ² x μ )

- Physics.
- Electrodynamics.
- Coil Area Result.

### How do you calculate condenser coil capacity?

Use the equation as stated above:

- Qwater = 500 * GPM (LWT – EWT)
- GPM = Q / 500 * (LWT – EWT)
- Delta T (water) = Q / 500 * GPM.
- Sensible and Latent Cooling.
- Q = The amount of heat transferred to or from the fluid (BTU/hr)
- M = Mass flow rate of the fluid (lb/hr)
- Delta H = The change in enthalpy of the fluid (BTU/lb)

**How do you find the cross sectional area of a coil?**

Cross sectional area of a given wire= π*r² = π*d²/4 where r = radius and d = diameter.

**Is cross sectional area the same as diameter?**

Cross section is an area. Diameter is a linear measure. That cannot be the same. The cross section or the cross sectional area is the area of such a cut.

## How to measure evaporator coil?

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### What is hot water heating coil?

Copper/Most common and offers best heat transfer

**What is a cooling coil?**

Dirt or debris blocking air flow through the coil ( DIRTY COOLING COIL/EVAPORATOR COIL)

**What are cooling coils?**

Cooling Coil. For it is the cooling coils that maintain a zone of solvent vapor, which is the primary barrier that keeps nearly all the cleaning solvent inside the open-top degreaser.