The National Student Scientific Week (PIMNAS) is the final event of the procession of various PKM competition schemes, starting from PKM-RE (Exact Research), PKM-RSH (Social Humanities Research), PKM-PM (Community Service), PKM in the Field of Science and Technology Application (PKM-PI). PKM in the Field of Creative Ideas (PKM-KC). PKM Constructive Futuristic Ideas (PKM-GFK). PKM Written Ideas (PKM-GT), PKM Scientific Articles (PKM-AI). and PKM-K (Entrepreneurship).

PIMNAS serves as a platform for participating students to present and communicate with each other through national-scale intellectual creations. Students are expected to gain significant benefits for enhancing creativity in their respective fields of study. In 2021, as in 2020, PIMNAS activities were conducted in a blended (online-offline) format, with the PIMNAS committee and judging team being held offline at the Host University, while the PKM teams that passed PIMNAS competed online from their respective locations. Despite being conducted online, the student teams implementing PKM were still required to demonstrate the highest level of creativity and usefulness of their intellectual products.

PIMNAS is the pinnacle of national-scale student scientific activities and is held at universities designated by the National Achievement Center with the willingness and agreement of all university leaders. It is a forum for scientific meetings and communication of student creative products, participated by students or student groups through PKM and non-PKM channels. For this year's PIMNAS, the University of North Sumatra (USU) has been appointed as the host for the 34th PIMNAS in 2021.

Haflan Alfiri Widrayat (S1 Management 2017 FEB UNAIR) participated in the Entrepreneurship PKM-K, together with 4 members from the Faculty of Science and Technology (FST UNAIR), with the title WACO GEL Product: Alternative Solution for Future Solid Fuel Based on Used Cooking Oil as a Form of Energy Independent Indonesia . That is making alternative solid fuel products from solidified used cooking oil.

Collaborating with FST students who focused on how product production related to the required chemical reactions, Haflan contributed to the preparation of economic and financial analyses, as well as management aspects such as marketing, human resources, finance, and business operations. The level of mentoring increased and intensified due to repeated guidance and presentation simulations from TPK lecturers and lecturers appointed by the university.

Of the 5 team members, only 2 made a presentation, Haflan (FEB UNAIR) and Muhammad Anang Jazuli (FST UNAIR) as the team leader.

The PKM flow process starts from faculty-level proposal selection, university-level proposal selection, national-level proposal selection, funding announcement, PKM program implementation for 4 months, submission of progress reports, announcement of PIMNAS pass, submission of final reports and scientific articles, presentation at PIMNAS, and finally announcement of PIMNAS winners.