How to Calculate Maximum Demand

What have the apartments got in them for loads?

What is the occupancy pattern?

What methods of microgeneration are present that will offset the grid demand?

What is the heating/cooling load as a result of the building's construction and latitude?

What do local building codes say on the topic?

What help can the architect's office's contacts give on the topic?

Uhm... Do you mean how many people want apartments?

maximum demand for what? water? electricity? cable television?

Your local electric code should provide guidlines for you to use.

hi

1-- what is the nature of buildings ---can get VA/m²

2---total connected load

3 demand factor applied to each

3 diversity factor 1.1---1.5

this will give total load KVA

hi!

Maximum demand now a days is not only a technical problem , but social & political too. load shedding programmes imposed by Government reduces the virtiual demand on the system.

In today's era, with the dense population, demand goes on rising ! & all engineering assumptions of diversity factor / load factor / utilization factor goes wrong if you are not smart enough! to predict the local conditions , where you want to predict the demand!

However, if you want to calculate the maximum demand, following may help you out.

Maximum demand = connected KW * diversity factor * load factor

_______________________________________ KVA.

POWER Factor

for residentiAL AREAs , power factor = 0.65 ( low due to high inductive loads )

diversity factor = 0.45 to 0.8

( rural / urban / commercial areas )

rural - 0.45

urban - 0.6

commercial - 0.8 - night peak hrs.

CONNECTED KW - YOU MUST KNOW.

Diversity factor is usually more than one.

Diversity factor is the ratio of the sum of the individual maximum demands of the various subdivisions of a system (or part of a system) to the maximum demand of the whole system (or part of the system) under consideration.

I am curious to know how Diversity factor comes less than. Would you pl. give some reference.

we normally use diversity on over all system load

and demand load on individual load to get the calculated load

what about load factor ---

oh my goodness! what maximum demand you need? please elaborate further...

Maximum Demand for the Apartments = (Sum of maximum demand of individual flat) / (Diversity factor)

Diversity factor may be considered as 1.2 - 1.5 depending on the user pattern. Like in daytime lights are off but AC/fan & other gadgets are on. While in the night Lights are on & you may prefer fan over AC & so on. Few flats may remain closed for the whole day & the flat members might return back in the evening. Few flat menbers might go out in the evening & come late night. All these factors you have to check while determining the diversity factor.