Integrated Natural Ventilation Design Integrated Design Parametric Study

Integrated Natural Ventilation Design Integrated Design Parametric Study Guidelines One of the main tasks was to identify the parameters that have the largest influence on the performance of natural ventilation. Guidelines for integrated natural ventilation Guidelines for the design were made within the work package. The guidelines were established by using two products of the work package (below). More. . . The Nat. Vent program A computer simulation tool, calculating air flow rates and indoor temperature, was created. Parametric study Back to “WP 3” Nat. Vent Statistical analysis of a large number of simulations using the Nat. Vent program was made GUIDELINES

Parametric Study Integrated Design Parametric Study Guidelines More. . . Back to “WP 3” Nat. Vent Simulations were made for a cell-type office building, where different parameters, e. g. Thermal mass, window area, ventilation strategy, were altered. Over-heating and poor ventilation rates were the key issues for the study. Altogether five different ventilation strategies were studied. For each strategy twelve parameters were altered and the effect of the change was studied. Ventilation Strategy Climate Number of storeys Air leakage Internal heat loads Thermal mass Night ventilation Fenestration Type of windows Vent size Solar shading Windows open Thermal insulation level

Practical Guidelines for Integrated Natural Ventilation Integrated Design Parametric Study Guidelines More. . . Results from the statistical analysis of the simulations show to improve natural ventilation: l l l l l Back to “WP 3” Nat. Vent High buildings gives better stack effect Airtight buildings (Build tight - Ventilate right!) Well insulated envelopes High thermal mass Large area of (adjustable) facade vents Limited internal heat loads Providing for night ventilation Limited solar loads by limited window area and/or solar shading devices Providing for user-controlled window airing

More information. . . Integrated Design Parametric Study You can fin more information on: n the Practical Guidelines for integrated Natural Ventilation in the document Reports Technological solutions 3. 5_integration & maintenance. pdf n The Nat. Vent program in the presentation of the final products: Go back to the Main page and choose Final Products - The Nat. Vent program Guidelines More. . . Back to “WP 3” Nat. Vent You can read and print pdf-files with the Acrobat® Reader ® 3. 0. Program. This program is free. Download it from the Acrobat web site: www. adobe. com OR run the installation file ar 32 e 301(1). exe in the directory Installation