Tumpeng is one of the ceremonial facilities used almost in every Hindu religious ceremony. Many people take advantage of these opportunities as a home-based business. At present the craftsmen encounter obstacles in the process of drying the cone. Currently the drying process still uses the manual method, namely by drying it by utilizing direct sunlight. In the previous research, the product planning for cone drying machine has been carried out, where the results obtained from this study are an increase in the productivity of the drying machine from the drying machine which was previously used by the cone maker of 683.33%. Although there is an increase in the productivity of the drying machine, the air distribution at each level of the rack is not evenly distributed, so the drying machine needs to be reviewed so that the air distribution in the drying chamber becomes more evenly distributed between the racks. From the results of studies conducted by the hot air entering the drying chamber from the results of the previous engine design, it is likely that conditions on level 1 shelves and level 2 shelves have temperatures that are quite high compared to other rack levels because this air is circulated at level 3, 4.5 and 6. To get the air distribution between the level of the rack evenly, it is necessary to do a redesign of the tool. The alternative that can be done is by circulating hot air from rack 1 to rack 6, another alternative is to try variations in air distribution in the drying chamber by varying the cone seat holes. The redesign method that was carried out was to replace the existing distribution before the air out of the level 3 blower in the rack was changed to the air out of the level 1 rack entry blower, and the cone seat was made varied by random holes, concentric holes and zigzag holes. From the results of engine redesign after testing the air distribution in the drying chamber with a random hole stacking model, the highest temperature is found in almost all shelf levels, except at the level 1 rack the highest temperature is achieved by a concentric perforated pedestal model that reaches 183 °C. Judging from the hot air distribution, the randomly hollowed cone seat model provides a more even distribution of hot air compared to the concentric and zigzag hollow cone seat model.

The Balinese people cannot be separated from their cultural and religious customs. The religious procession for Balinese people is conducted to express our gratitude to Ida S ang Hyang Widi Wasa (The Almighty God) for the gift he has given. One of the ceremonial facilities used is tumpeng, and in aseries of ceremony, a lot of tumpeng is usually needed. As the result, many people turn this opportunity into a business. One of the villages in Gianyar regency, namely the Buruan village, Blahbatuh subdistrict, the community has a lot to do with the ir tumpeng penet business. In this village, the craftsmen still encounter many obstacles in the drying process of the cone. Nowadays, the drying process is still using the manual method by drying it under the direct sunlight. The disadvantage of this process is that this process takes long enough time and can only be done in the season. For this reason, some efforts are required to make in order to help the craftsmen of tumpeng increase their productivity, in which the distribution of air in the drying process of tumpeng will be tested in this research by using a multilevel rack type drying machine. The purpose of this research is to get the design of an air circulation system which is evenly distributed in the drying chamber of the tumpeng drying machine with multilevel rack type. The method used in this study is to make a multilevel rack type drying machine with 6 levels with an LPG gas source as a test tool. By using the existing test equipment several types of air distribution will be tried to be created to get an even air distribution system in the drying chamber. Each thermocouple will be installed on a rack to find out the temperature that occurs on each rack. From the results of the research, it turns out that the rack temperature in the lowest rack position (near the heat source) produces the highest temperature, and the rack above it has a lower temperature with an average of ∆T 35 o C this data is obtained on the system without the circulation of hot air in the drying chamber. After the process of air distribution in the drying chamber, even though the lowest rack has the highest temperature, yet the differrence of temperature between the shelves is not too large; the average between shelves reaches 10 ° C.