What is the difference between sensible and latent loads?

Latent and sensible loads in radiant cooling A high latent load would mean that the relative humidity was high. Sensible energy is the energy that alters the mean radiant temperature (MRT) and air temperature that you can feel. This is why the moisture content of the air is referred to as the relative humidity.

Which is more sensible heat or latent heat?

The energy spent is 970 Btu (Latent heat). Once all the liquid has turn to vapor, any more heat added will increase the temperature of the steam as sensible heat. Finally, we observe that latent heat uses much more energy than sensible heat to change the phase of a liquid, solid or steam.

What is difference between heat and latent heat?

Sensible heat is the heat that causes an object to change temperature. When the temperature of an object falls, the heat removed is called ‘sensible heat’. Latent heat is the heat the heat added to an object in order for it to change state.

What is room sensible heat?

Room Sensible Heat Factor – RSHF – is defined as the sensible heat load divided by the total heat load in a room. Sponsored Links. The Room Sensible Heat Factor – RSHF – expresses the ratio between sensible heat load and total heat load in a room. It can be expressed as: RSHF = Qsr / Qtr (1)

What is sensible heat factor?

Sensible heat factor is the ratio of sensible heat and Total heat. Sensible heat is the heat which increases or decreases the temperature of the body. Latent heat is the heat which increases the specific humidity without increasing or decreasing the temperature of the body.

What is the difference between heat and latent heat?

Sensible heat and latent heat are the types of energy absorbed or released in the atmosphere. Sensible heat relates to the change in temperature of an object or gas without a change in the phase. But, latent heat relates to the change in phase between solids, liquids, and gases.

What is sensible heat gain and latent heat gain?

Sensible Heat Gain – is the energy added to the space by conduction, convection and/or radiation. Latent Heat Gain – is the energy added to the space when moisture is added to the space by means of vapor emitted by the occupants, generated by a process or through air infiltration from outside or adjacent areas.

What is effective sensible heat?

Effective Room Sensible Heat (ERSH) is the sum of all sensible heat gain that occurs in the room including the gain due to the portion of the ventilation air which is bypassed. Bypass Factor is part of the total air through the coil which fails to come into contact with the surface of the cooling coil.

What is latent temperature?

latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. The latent heat is normally expressed as the amount of heat (in units of joules or calories) per mole or unit mass of the substance undergoing a change of state.

What is the ratio of latent to sensible to sensible heating called?

Bowen ratio
The Bowen ratio is generally used to calculate heat lost (or gained) in a substance; it is the ratio of energy fluxes from one state to another by sensible heat and latent heating respectively.

How do you find the sensible heat factor?

You can easily calculate the SHR by dividing the sensible capacity by the total capacity, and the latent is simply the sensible subtracted from the total.

What is the formula for latent heat?

The formula for specific latent heat is the amount of energy released or formed divided by the mass. The formula is notated as L = Q/m, where L is the latent heat, Q is the change in energy in terms of heat, and m is the substance’s mass.

What is the latent heat equation?

The formula for latent heat is: Q = m * L. This equation relates the heat Q that must be added or removed for an object of mass m to change phases. The object’s individual latent heat is noted by L. The unit of latent heat is J/kg.

sensible-heat factor. The ratio of space sensible heat to space total heat; used for air-conditioning calculations.

What is the equation for latent heat of fusion?

Latent Heat of Fusion Formula. So, the formula of latent heat of fusion is given by: Q = mL, which is the required equation for the latent heat of fusion. Here, Q = change in heat energy in Joules. m = mass in Kg. L = Specific latent heat of fusion. So, do you know what the specific latent heat of fusion is? Specific Latent Heat of Fusion