KMITL Innovation Expo 2025 Logo

Composite High-Pressure Tanks for CNG and Hydrogen (H₂)

Composite High-Pressure Tanks for CNG  and Hydrogen (H₂)

Abstract

A high-pressure gas storage tank made from composite materials, including carbon fiber, resin, and plastic, is designed for storing compressed natural gas (CNG) or hydrogen. This type of tank is classified as a Type IV high-pressure vessel. In this research, it is designed to operate at a pressure of 250 bar for the transportation of compressed natural gas.

Objective

การบรรจุก๊าซที่ความดันสูงต้องใช้บรรจุภัณฑ์​ที่มีความแข็งแรง​ การใช้ถังที่ผลิตจากโลหะถูกนำมาใช้ในช่วงแรกๆ​ แต่ปัญหาที่ตามมาคือน้ำหนักมากทำให้สิ้นเปลืองเชื้อเพลิงในกรณีที่นำไปติดตั้งบนยานพาหนะ​ จึงเกิดการพัฒนาถังความดันที่พัฒนาจากวัสดุประกอบขึ้นซึ่งจะช่วยลดน้ำหนักของบรรจุภัณฑ์​และการกัดกร่อนเกิดขึ้นน้อย

Other Innovations

Aspect-Based Sentiment Analysis for E-Commerce Product Reviews

คณะวิทยาศาสตร์

Aspect-Based Sentiment Analysis for E-Commerce Product Reviews

In today’s rapidly expanding e-commerce environment, the massive volume of product reviews makes it crucial to summarize user opinions in a way that is both comprehensible and practically applicable. This research presents a system for analyzing product reviews using Aspect-Based Sentiment Analysis (ABSA), a Natural Language Processing (NLP) technique that identifies key aspects of a review (such as shipping, product quality, and packaging) and evaluates the sentiment (positive, negative, or neutral) associated with each aspect, allowing both consumers and merchants to gain more efficient access to in-depth insights. This project focuses on developing AI for Thai-language ABSA by utilizing WangchanBERTa, a model trained on Thai data, and comparing it with various standard approaches such as TF-IDF + Logistic Regression, Word2Vec + BiLSTM, and Multilingual BERT (mBERT/XLM-R) to assess their performance in terms of accuracy, speed, and resource usage. Additionally, a dashboard visualization is provided to help users quickly grasp review trends. The expected outcome is to create an AI tool that can be practically employed in the e-commerce industry, enabling consumers to make easier purchasing decisions and assisting merchants in effectively improving their products and services.

Read more
Comparison of greenhouse system optimum to potted petunia production

คณะเทคโนโลยีการเกษตร

Comparison of greenhouse system optimum to potted petunia production

-

Read more
Planted filter with Golden apple snail&Green caviar

คณะเทคโนโลยีการเกษตร

Planted filter with Golden apple snail&Green caviar

The reason of this project is How to make water system during breeding Golden apple snail&Green caviar with limitation area. Make sure that waterfowl system can work

Read more