Find us by looking for a toilet – leave as a proud P Donor
Today’s agriculture depends on industrial fertilizers containing P, Phosphorus. This non-renewable is currently still obtained from mined Phosphate Rock which is depleting quickly. To secure our future food supplies we need to start to recover P now.
The P-BANK is a public toilet that aims to close the P-cycle. The sanitation system separates Pee from the waste water which simplifies nutrient recovery. This happens directly in the P-BANK. The recovered P is re-used as fertilizer in the P-BANK garden.
In the donor rooms you can comfortably donate in a no-mix toilet or a waterless urinal.
RECOVER
While washing hands, you can peek into the recovery lab. A process of chemical reactions recovers P from Pee safely and hygienically.
Leaving the P-Bank you’ll discover that the recovered P can be successfully reused as an alternative for mined Phosphorus.
While ASHRAE offers its official Duct Fitting Database (DFDB) as a cloud-based software subscription, many engineers use Excel as a central hub to organize calculations for External Static Pressure (ESP) and fan sizing. Mastering Duct Static Pressure with ASHRAE Data and Excel
#HVAC #ASHRAE #MechanicalEngineering #DuctDesign #Excel #BuildingServices #EngineeringTips ashrae duct fitting database excel
| Column Name | Description | Example Value |
| :--- | :--- | :--- |
| Fitting_Type | ASHRAE Designation | CR4-1 |
| Shape | Round, Rect, Oval | Rectangular |
| Coefficient_C | Loss Coefficient | 0.25 |
| Re_Range | Reynolds Number Applicability | > 10^5 |
| Parameter_A | e.g., Aspect Ratio (H/W) | 0.5 |
| Parameter_B | e.g., Radius Ratio (r/W) | 1.5 | While ASHRAE offers its official Duct Fitting Database
: The database uses complex algorithms to calculate pressure loss based on dimensions and airflow (CFM). Most engineers use the official software to find specific fitting losses and then manually transfer those results into an Excel-based ESP calculator for the total system. Mobile Support : ASHRAE offers a Duct Fitting Database Lite App Speed: Searching a PDF for "CD3-9" takes 10 seconds
ASHRAE Duct Fitting Database versions
behind the restaurant ‘Lücke’
entrée
donor room
recruiting donors at other facilities
recruiting donors in the bar
rewards after donating
In 2018 the Bauhaus University Weimar and WERKHAUS destinature received funding from the German Federal Environment Foundation (DBU) to develop the first P-BANK. The concept was developed by Anniek Vetter and Sylvia Debit during a semester project at the Bauhaus University Weimar led by Prof. Jörg Londong back in to 2013.
The P-BANK was first used for several months during the 100th anniversary year of Bauhaus in Weimar, Germany 2019. Later that year the P-BANK was at the Tiny Living Festival. The project was presented at the Antenna platform during the Dutch Design Week 2019.
WERKHAUS destinature built the mobile P-Bank from sustainable materials, based on the service and communication designed by Debit and Vetter, including donor-rooms containing the toilet safe! sponsored by Laufen. The recovering system is developed by the B.is, the department of urban water management and sanitation of the Bauhaus University Weimar led by Prof. Jörg Londong, with the support of Vuna and Eawag. Besides consulting Goldeimer supports getting the story and the out there!
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