PHS equation

[FedericoTartarini]

Describe the bug
when I use the PHS module and increase the weight parameter while keeping all other parameters constant, the t_rect becomes lower, for example. My question is, is this correct? We would greatly appreciate an answer.

[C-H-Simpson]

I think this is consistent with how the PHS uses weight. Surface area and specific heat of the body increase with weight. Core->surface heat transfer not affected by weight.

I don't have access to the ISO standard, but a lot of the model details are in Malchaire, J., Piette, A., Kampmann, B., Mehnert, P., Gebhardt, H., Havenith, G., Den Hartog ¶, E., Holmer, I., Parsons, K., Alfano, G., & Griefahn, B. (2001). Development and Validation of the Predicted Heat Strain Model (Ann. Occup. Hyg, Vol. 45, Issue 2, pp. 123–135). https://academic.oup.com/annweh/article-abstract/45/2/123/209907

Same can be seen in other implementation of PHS I have seen here https://github.com/ladybug-tools/ladybug-legacy/blob/master/src/Ladybug_Thermal%20Comfort%20Indices.py#L1323

It might not be consistent with reality, but I think it is consistent with the model specification.