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what are the parameters for selection of city for investigating a newly developed daylight device on daylight performance?

I have to select 3 cities for daylight performance.

@Neal : On what basis I select Delhi,Ahmedabad and Chennai. 1. Different latitudes (Delhi: 28.6100° N, 77.2300° E,Ahmedabad: 23.0300° N,72.5800° E,Chennai13.0839° N, 80.2700° E) 2 Change in sun's inclination But I want to understand if I am using a newly developed daylight device, how will i compare this for all the three latitude cities. there should be something common in weather data.

what are the parameters for selection of city for investigating a newly developed daylight device on daylight performance?

I have to select 3 cities for daylight performance.

@Neal : On what basis I select Delhi,Ahmedabad and Chennai. 1. Different latitudes (Delhi: 28.6100° N, 77.2300° E,Ahmedabad: 23.0300° N,72.5800° E,Chennai13.0839° N, 80.2700° E) 2 Change in sun's inclination But I want to understand if I am using a newly developed daylight device, how will i compare this for all the three latitude cities. there should be something common in weather data.

what are the parameters for selection of city for investigating a newly developed daylight device on daylight performance?

I have to select 3 cities for daylight performance.

@Neal : On what basis I select Delhi,Ahmedabad and Chennai. 1. Different latitudes (Delhi: 28.6100° N, 77.2300° E,Ahmedabad: 23.0300° N,72.5800° E,Chennai13.0839° N, 80.2700° E) 2 Change in sun's inclination But I want to understand if I am using a newly developed daylight device, how will i compare this for all the three latitude cities. there should be something common in weather data.

what are the parameters for selection of city for investigating a newly developed daylight device on daylight performance?

I have to select 3 cities for daylight performance.

@Neal : On what basis I select Delhi,Ahmedabad and Chennai. 1. Different latitudes (Delhi: 28.6100° N, 77.2300° E,Ahmedabad: 23.0300° N,72.5800° E,Chennai13.0839° N, 80.2700° E) 2 Change in sun's inclination But I want to understand if I am using a newly developed daylight device, how will i compare this for all the three latitude cities. there should be something common in weather data.

On what are the parameters basis I should select 3 latitude cities for selection of city for investigating a newly developed daylight device on daylight performance?simulations?

I have to select 3 cities for daylight performance.-Sky condition changes -sun's angle changes

@Neal : On But on what basis I select Delhi,Ahmedabad and Chennai. 1. Different latitudes (Delhi: 28.6100° N, 77.2300° E,Ahmedabad: 23.0300° N,72.5800° E,Chennai13.0839° N, 80.2700° E) 2 Change i can take 3 latitudes?? - is there a theory of change in sun's inclination But I want to understand if I am using a newly developed daylight device, how will i compare this for all the three latitude cities. there should be something common inclination is prominent with 4 degree change in weather data.latitude?? Please help

On what basis I should select 3 latitude cities for simulations?

-Sky condition changes -sun's angle changes

But on what basis i can take 3 latitudes?? - is there a theory of change in inclination is prominent with 4 degree change in latitude?? Please help

On what basis I should select 3 latitude cities for simulations?

-Sky condition changes -sun's angle changes

But on what basis i can take 3 latitudes?? - is there a theory of change in inclination is prominent with 4 degree change in latitude?? Please help