scholarly journals “Desigrated”-Desiccant Integrated Façade for the Hot-Humid Climate of Bangkok, Thailand

2020 ◽  
Vol 12 (13) ◽  
pp. 5490
Author(s):  
Natchai Suwannapruk ◽  
Alejandro Prieto ◽  
Christien Janssen
Keyword(s):  
Cooling System ◽  
Promising Result ◽  
Humid Climate ◽  
Dynamic Simulations ◽  
High Rise ◽  
Energy Consumption Reduction ◽  
Consumption Reduction ◽  
Cooling Technology ◽  
Conventional Cooling ◽  
Hot Humid Climate

“Desigrated” presented an attempt to integrate heat prevention strategies with low-ex cooling technologies, namely the desiccant and M-cycle evaporative cooling technology, in the form of a façade system for high-rise office buildings. The project targets to provide an alternative cooling solution for the hot and humid climate context of Bangkok. The results from experiments by various researchers are used as assumptions in developing the system, which was then evaluated through numerical methods and dynamic simulations. Being one of the prominent dehumidification technologies, a composite silica gel heat exchanger (CCHE) was implemented as the primary part of the façade system, while the M-cycle technology would also be implemented as a secondary cooling technique to cool down the supply air. The evaluation shows a promising result with up to 36% energy consumption reduction in comparison with the conventional cooling system, presenting itself as a transitioning tool in order to replace refrigerant cooling.

The effect of building envelope on the thermal comfort and energy saving for high-rise buildings in hot–humid climate

2016 ◽  
Vol 53 ◽  
pp. 1508-1519 ◽  
Author(s):  
Seyedehzahra Mirrahimi ◽  
Mohd Farid Mohamed ◽  
Lim Chin Haw ◽  
Nik Lukman Nik Ibrahim ◽  
Wardah Fatimah Mohammad Yusoff ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Energy Saving ◽  
Building Envelope ◽  
Humid Climate ◽  
High Rise ◽  
Hot Humid Climate

scholarly journals Cooling System Energy Consumption Reduction through a Novel All-Electric Powertrain Traction Module and Control Optimization

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 33
Author(s):  
Simone Lombardi ◽  
Manfredi Villani ◽  
Daniele Chiappini ◽  
Laura Tribioli
Keyword(s):  
Energy Consumption ◽  
Control Strategy ◽  
Modular Design ◽  
Cooling System ◽  
Total Power ◽  
Control Optimization ◽  
Driving Cycles ◽  
Energy Consumption Reduction ◽  
Conventional Cooling ◽  
And Control

In this work, the problem of reducing the energy consumption of the cooling circuit for the propulsion system of an all-electric vehicle is approached with two different concepts: improvement of the powertrain efficiency and optimization of the control strategy. Improvement of the powertrain efficiency is obtained through a modular design, which consists of replacing the electric powertrain with several smaller traction modules whose powers sum up to the total power of the original powertrain. In this paper, it is shown how modularity, among other benefits, also allows reducing the energy consumption of the cooling system up to 54%. The energy consumption of the cooling system is associated with two components: the pump and the fan. They produce a so-called auxiliary load on the battery, reducing the maximum range of the vehicle. In conventional cooling systems, the pump and the fan are controlled with a thermostat, without taking into account the energy consumption. Conversely, in this work a control strategy to reduce the auxiliary loads is developed and compared with the conventional approach, showing that the energy consumption of the cooling system can be reduced up to 27%. To test the control strategy, numerical simulations have been carried out with a 1-D model of the cooling system. On the other hand, all the thermal loads of the components have been calculated with a vehicle simulator, which is able to predict the vehicle’s behavior under different driving cycles.

scholarly journals Integrated Eco-Friendly Outdoor Cooling System – Case Study of Hot-Humid Climate Countries

2022 ◽  
Vol 23 (1) ◽  
pp. 64-72
Author(s):  
Mohammad Bani Khalid ◽  
Nabil Beithou ◽  
M.A.Sh. Al-Taani ◽  
Artur Andruszkiewicz ◽  
Ali Alahmer ◽  
...  
Keyword(s):  
Cooling System ◽  
Humid Climate ◽  
Hot Humid Climate

scholarly journals Numerical Evaluation of a HVAC System Based on a High-Performance Heat Transfer Fluid

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3298
Author(s):  
Gianpiero Colangelo ◽  
Brenda Raho ◽  
Marco Milanese ◽  
Arturo de Risi
Keyword(s):  
Heat Transfer ◽  
High Performance ◽  
Cooling System ◽  
Electrical Energy ◽  
Simulation Software ◽  
Heat Transfer Fluid ◽  
Hvac System ◽  
Dynamic Simulations ◽  
Heating And Cooling ◽  
The University

Nanofluids have great potential to improve the heat transfer properties of liquids, as demonstrated by recent studies. This paper presents a novel idea of utilizing nanofluid. It analyzes the performance of a HVAC (Heating Ventilation Air Conditioning) system using a high-performance heat transfer fluid (water-glycol nanofluid with nanoparticles of Al2O3), in the university campus of Lecce, Italy. The work describes the dynamic model of the building and its heating and cooling system, realized through the simulation software TRNSYS 17. The use of heat transfer fluid inseminated by nanoparticles in a real HVAC system is an innovative application that is difficult to find in the scientific literature so far. This work focuses on comparing the efficiency of the system working with a traditional water-glycol mixture with the same system that uses Al2O3-nanofluid. The results obtained by means of the dynamic simulations have confirmed what theoretically assumed, indicating the working conditions of the HVAC system that lead to lower operating costs and higher COP and EER, guaranteeing the optimal conditions of thermo-hygrometric comfort inside the building. Finally, the results showed that the use of a nanofluid based on water-glycol mixture and alumina increases the efficiency about 10% and at the same time reduces the electrical energy consumption of the HVAC system.

Sign in / Sign up

Export Citation Format

Share Document