scholarly journals AN ASSESSMENT RESEARCH FOR RADIANT HEATING AND COOLING SYSTEM DESIGN : (1) Warm-up characteristics in floor heating systems

1995 ◽  
Vol 60 (470) ◽  
pp. 11-17 ◽  
Author(s):  
Hisaya ISHINO ◽  
Kimiko KOHRI
Keyword(s):  
System Design ◽  
Cooling System ◽  
Radiant Heating ◽  
Warm Up ◽  
Heating Systems ◽  
Heating And Cooling ◽  
Floor Heating ◽  
Assessment Research

scholarly journals Evaluation of Thermal Comfort and Energy Consumption of Water Flow Glazing as a Radiant Heating and Cooling System: A Case Study of an Office Space

2020 ◽  
Vol 12 (18) ◽  
pp. 7596
Author(s):  
Belen Moreno Santamaria ◽  
Fernando del Ama Gonzalo ◽  
Benito Lauret Aguirregabiria ◽  
Juan A. Hernandez Ramos
Keyword(s):  
Energy Consumption ◽  
Solar Radiation ◽  
Energy Management ◽  
Water Flow ◽  
Cooling System ◽  
Air Cooling ◽  
Radiant Heating ◽  
Large Glass ◽  
Heating And Cooling ◽  
Office Space

Large glass areas, even high-performance glazing with Low-E coating, could lead to discomfort if exposed to solar radiation due to radiant asymmetry. In addition, air-to-air cooling systems affect the thermal environment indoors. Water-Flow Glazing (WFG) is a disruptive technology that enables architects and engineers to design transparent and translucent facades with new features, such as energy management. Water modifies the thermal behavior of glass envelopes, the spectral distribution of solar radiation, the non-uniform nature of radiation absorption, and the diffusion of heat by conduction across the glass pane. The main goal of this article was to assess energy consumption and comfort conditions in office spaces with a large glass area by using WFG as a radiant heating and cooling system. This article evaluates the design and operation of an energy management system coupled with WFG throughout a year in an actual office space. Temperature, relative humidity, and solar radiation sensors were connected to a control unit that actuated the different devices to keep comfortable conditions with minimum energy consumption. The results in summer conditions revealed that if the mean radiant temperature ranged from 19.3 to 23 °C, it helped reduce the operative temperature to comfortable levels when the indoor air temperature was between 25 and 27.5 °C. The Predicted Mean Vote in summer conditions was between 0 and −0.5 in working hours, within the recommended values of ASHRAE-55 standard.

A Glance on Radiant Cooling Technology for Heating and Cooling for Residential and Commercial Building Application

2020 ◽  
Vol 07 (3&4) ◽  
pp. 13-19
Author(s):  
Shubham S Kulkarni ◽  
Keyword(s):  
Energy Consumption ◽  
Life Cycle Cost ◽  
Cooling System ◽  
Radiant Heating ◽  
Commercial Building ◽  
Heating And Cooling ◽  
Radiant Cooling ◽  
Air Conditioning Systems ◽  
Increasing Temperature ◽  
Chilled Ceiling

As we know that nowadays due to the hot and humid weather and the increasing temperature the high amount of energy consumption is used for the heating & cooling purpose in residential as well as in commercial building for air conditioning systems. To overcome this problem and to reduce the energy consumption as well as good thermal comfort to people in the indoor environment, use the radiant heating & cooling system is a better way. This concept is used to cool or heat the room and absorbs the indoor sensible heat by thermal radiation. The system removes heat by using less energy and more energy-efficient. This system uses water as a medium to cool or heat the room space. There are three types discussed in these papers for cooling & heating. In this paper, we did an overall study regarding radiant heating and cooling systems. It reduces the energy lost due to the duct leakage. It also has a lower life cycle cost compared to conventional. In this paper, we have reviewed how to reduce energy consumption and give thermal comfortable air-condition through radiant cooling and chilled ceiling panel system.

scholarly journals Influence of Cooling and Heating Systems on Pen Fouling, Lying Behavior, and Performance of Rearing Piglets

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 324
Author(s):  
Svenja Opderbeck ◽  
Barbara Keßler ◽  
William Gordillio ◽  
Hansjörg Schrade ◽  
Hans-Peter Piepho ◽  
...  
Keyword(s):  
High Temperatures ◽  
Significant Influence ◽  
Cooling System ◽  
Optimal Temperature ◽  
Heating Systems ◽  
Pig Production ◽  
Heating And Cooling ◽  
Temperature Requirements ◽  
And Performance ◽  
Very High

The rearing of piglets is a demanding phase of pig production partly because of the changing temperature requirements of the piglets during rearing. Piglets need high temperatures in the resting area, especially at the beginning, while the optimal temperature is lower toward the end of rearing. To meet the changing temperature demands of the piglets and also to optimize the pen structure, one floor cooling and two heating systems were examined in this study. In two rearing compartments, four pens with 48 piglets each were equipped with a heated cover above a heated/cooled lying area. The lying behavior and performance of 1152 piglets, in addition to the pen fouling, were recorded over six rearing periods. There was no difference between the two heating systems in the lying behavior. However, the acceptance of the lying area was very high in all pens and periods with heating. The cooling had a significant influence on the lying behavior depending on the rearing week. Significantly more piglets lay on the cooled lying area compared with the control pen during the last weeks. The fouling of the pens was not affected by the cooling or heating systems; however, the fouling in all pens was very low. The tested pen structure in combination with a heating and cooling system is a well-functioning way of integrating a solid lying area.

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