ANALYSIS OF TECHNICAL ATTRIBUTE PRIORITIES USING THE HOUSE OF QUALITY

Wiyogo Wiyogo, Harie Satiyadi Jaya, Debora Debora, Vontas Alfenny Nahan, Sri Murwantini, Jhonni Rentas Duling, Sukardi Sukardi, Galfri Siswandi, Ferdy Ferdy, I Wayan Juni Satya

Abstrak

This study aims to analyze the integration of spring–flywheel systems as an innovative and environmentally friendly energy conversion solution through the Quality Function Deployment (QFD) approach. The QFD method was employed to identify the relationship between customer needs (voice of the customer) and the product’s technical characteristics (technical responses) in order to determine the most influential development priorities that affect overall system performance. The analysis was carried out through several key stages, including identifying user requirements, determining improvement ratios, assigning sales points, calculating importance weights, and normalizing technical contributions. The results of the House of Quality (HoQ) analysis reveal that the modular design to reduce production costs has the highest contribution value of 11.70%, followed by energy storage capacity (10.41%) and low emission during operation (9.76%). Other attributes, such as energy efficiency (round-trip) and environmentally friendly materials, also play significant roles in supporting system sustainability. The findings indicate that improving mechanical efficiency, using recyclable materials, and minimizing energy losses are the key factors in optimizing system performance. This research proposes a product development strategy oriented toward eco-design, emphasizing energy efficiency, modularity, and environmental impact reduction. The outcomes are expected to serve as a design guideline for developing efficient and sustainable mechanical energy storage systems that align with the principles of green engineering.

Keywords: Quality Function Deployment (QFD), energy efficiency, modular design, environmentally friendly materials.