[HTML][HTML] Gain scheduling model predictive controller design for tankless gas water heaters with time-varying delay

AF Quintã, I Ehtiwesh, N Martins, JAF Ferreira - Applied Thermal …, 2022 - Elsevier
One of the most significant drawbacks of tankless gas water heaters is the difficulty of
controlling the outlet hot water temperature as changes in water demand cannot be …

Reconfiguring TRNSYS Type 158 for direct fired water heaters: Model verification and simulation performance analysis

R Vavřička, E Langerova, J Boháč - Energy and Buildings, 2024 - Elsevier
This article presents novel insights into direct-fired water heaters with a storage tank, making
a significant contribution to the scientific community. The paper has two main objectives …

Design of an economically sustainable energy recovery system for domestic instant geyser

I Ali, M Zia-ur Rahman, A Hussain, H Shahid… - Journal of Thermal …, 2024 - Springer
In recent years, due to high electricity prices in South Asian countries, natural gas-based
tankless water heaters (instant geysers) have been widely installed for sustainable …

Code generation for embedded predictive control of gas water heaters

A Quintã, C Conceição, N Martins… - … and Technology for the …, 2024 - Taylor & Francis
Conventional control strategies usually employed in tankless gas water heaters present
difficulty in controlling the hot water temperature when subjected to sudden changes in …

Embedded Model Predictive Control of Tankless Gas Water Heaters to Enhance Users' Comfort

C Conceição, A Quintã, JAF Ferreira, N Martins… - Machines, 2023 - mdpi.com
Water heating is a significant part of households' energy consumption, and tankless gas
water heaters (TGWHs) are commonly used. One of the limitations of these devices is the …

Virtual test bench for the design of control strategies for water heaters

AF Quintã, JD Oliveira… - Journal of …, 2022 - asmedigitalcollection.asme.org
An innovative methodology and a virtual test bench (VTB) are proposed to support the
design of water heaters' control strategies. This platform allows to speed up the development …

Smith predictor-based nonlinear internal model control for water temperature regulation of combi-boiler systems

R Liu, M Cao, S Li, J Yang - 2023 - IET
This paper proposes a reliable and practical water temperature control scheme for combi-
boiler systems working in domestic hot water mode. In practice, the water temperature …

Numerical Investigation of Tankless Water Heater thermal performance

TM El-Sahhar, A Guaily… - 2022 4th Novel Intelligent …, 2022 - ieeexplore.ieee.org
Hot water is a crucial and very important demand in any residential building. Tankless water
heater is the most used device for that purpose compared to electric water heaters because …

Low-‎ computational adaptive MPC algorithmization strategy for over‎ and‎ undershoots‎ instantaneous‎ water‎ heaters stability

I Ehtiwesh - Seatific Journal, 2023 - dergipark.org.tr
Tankless gas Hot Water users'‎ comforting perception‎ is severely affected by‎ sudden‎
changes‎ in temperature‎ apart from‎ the‎ desired temperature. The instability of the‎ water‎ …

[PDF][PDF] Gain Scheduling MPC Controller Design for Tankless Gas Water Heaters with Time-Varying Delay

A Quintã, I Ehtiwesh, N Martins… - Available at SSRN …, 2021 - papers.ssrn.com
One of the most significant drawbacks of tankless gas water heaters is the difficulty of
controlling the outlet hot water temperature as changes in water demand cannot be …