A new type of cooling ceiling panel with corrugated surface—Experimental investigation

Abstract

Summary In this paper a new type of cooling ceiling panel with corrugated surface has been studied experimentally. A heat flux and a heat transfer coefficient for the new type panel were compared with the reference values obtained for a panel of a flat surface. It was shown that increase of the new panel cooling performance results both from increase of its area and from enhancement of natural convection heat transfer. For typical operation conditions, the increase of the new type panel cooling capacity varies from 26 to 55%, in comparison with the reference panel. In addition, the new type panel is more resistant to the risk of dew point and enables the achievement of higher EER values by the heat pump cooperating with it.

Comparative assessment of different air‐conditioning systems for nearly/net zero‐energy buildings

“…EnergyPlus provides a set of templates for radiant cooling system that are extensively pre‐validated, and these templates are used to model the radiant cooling system. Further, literature reveals that the radiant cooling system is capable to satisfy around 10%‐30% of total building thermal load, therefore in our case the radiant system is handling 19% of total building thermal load, which verifies that the system is working satisfactorily. Figure shows the layout of the radiant air‐conditioning system with a separate DOAS .…”

“…It is also highlighted that very less energy is consumed by the pumps which are installed at the refrigerant regeneration side assisted by solar collector, biomass boiler, VCC pump, VAC pump, and supplementary heating element (Figure ). Studies reveal that by incorporating renewable energy‐based desiccant system and other evaporative cooling arrangements, energy efficiency will further improve. However, the intention of this study is to achieve the target of nearly/net zero‐energy building.…”

“…Kim et al studied the performance of hybrid radiant cooling system with decentralized air convectors and reported less energy consumption in comparison with the conventionally used air‐conditioner. Wojtkowiak et al developed a unique kind of ceiling panel for radiant cooling system to improve the performance capacity from 26‐55% with respect to the reference panels. Singh and Das studied the performance of triple‐hybrid radiant cooling system with absorption and desiccant based systems.…”

An Experimental Study of a Thermally Activated Ceiling Containing Phase Change Material for Different Cooling Load Profiles

“…Thermally activated ceilings can achieve high energy efficiency by reducing transmission losses and supply temperature during cooling. The applied outer skin of the thermally activated panels [4] and their design [5,6] are important.…”

Peak Power of Heat Source for Domestic Hot Water Preparation (DHW) for Residential Estate in Poland as a Representative Case Study for the Climate of Central Europe

“…In practice, surface heating systems are mainly used. The most common system is floor heating, but in works [11,12], the innovative ceiling heating and cooling panels have been presented, showing the increase in their efficiency thanks to the use of an appropriately corrugated surface. An important role for the energy efficiency of HVAC systems is also played by controlling their efficiency, which was described in the example of wall heating systems with heat pipes in the article [13].…”